SRRK Scholar Rock Holding Corporation Common Stock

XNAS 43.00 Delayed
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Stock quote, options chain, IV rank, technicals, AI analysis, and institutional ownership. Iron condor setups Expected move IV rank history Fibonacci levels Insider trading

Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.

SRRK $43.00 —
Key stats
$43.00
Pre-market $42.90 -0.23%
52-Week Range
$27.07 – $61.76
YTD
+0.47%
IV Rank (30D)
43.67
Straddle Price
$5.95
P/C Vol Ratio
1.65
Market Cap
$5.0B
Open
$41.52
Day Range
$41.44 – $43.24
Volume
4,600,583
Prev Close
$41.36
Fair Value
MODEL: LONG

A blended fair-value estimate combining up to six valuation methods. Each method is weighted by how well it fits the company — DCF down-weights for unprofitable names; DDM only fires for steady dividend payers; comparables down-weight when peer multiples disagree.

  • DCF (quality-aware) — projects free cash flow with a horizon that scales to business quality. True compounders (quality 6/6) get 10 years explicit + 10 years fade before terminal; cyclical/struggling names (quality 0-1) get a 5-year terminal cliff. Quality is scored from ROE, gross margin, growth, FCF margin, debt load, and FCF consistency — the same factors that drive market premium for compounders.
  • Market-Implied Growth (in Model Inputs) — reverse-DCF that answers "what growth rate is the market pricing in?". Lets you sanity-check the deviation: if implied growth is plausible for the business, the model's bearish flag may be wrong; if implausible, the market may be over-extrapolating.
  • DDM (Gordon Growth Dividend Model) — values the stream of future dividends. Only used when trailing yield ≥ 2% and dividend payments are stable — below that the dividend is a token payout and Gordon (which values only the dividend stream) systematically underprices growth names, so those route to DCF + comparables + market anchor instead.
  • P/E, EV/EBITDA, P/B, P/S — applies the peer-group median multiple to this company's per-share metric. Peers come from the same set as the "Related symbols" card. Earnings/sales metrics are forward-tilted by the company's recent revenue growth (capped at 25%) so they're comparable to peers' growth-embedded multiples — mimics how analysts use NTM rather than TTM. Per-multiple weights are biased by company quality (e.g. P/B down-weighted for asset-light tech).
  • Market Anchor (SMA50) — the 50-day moving average, weighted by recent trading-range stability (tighter Bollinger bands → higher weight). Captures information fundamentals miss (forward consensus, sentiment, supply/demand) — but only when recent trading is steady enough that the market has converged on a view. During wild breakouts or breakdowns the anchor's weight collapses.
  • Options Expected (B-L 30d) — the risk-neutral expected stock price at 30-day options expiration, derived from the full implied-volatility surface via Breeden-Litzenberger (second derivative of call price wrt strike → implied PDF, then E[S_T]). Forward-looking, captures all options-implied information (smile, skew, term structure) in one number. Weighted by chain liquidity. SP500-only at present (pre-computed daily). Backtest evidence: adds modest alpha across most bucket × holding combos.
  • Blended value — weighted average. Confidence reflects how many methods fired and how tight peer dispersion is.
  • Deviation pill — green when blended FV ≥ 10% above current price (undervalued); red when ≥ 10% below; grey otherwise.
10-yr Treasury (rf)5.15%
Beta vs SPY1.36
Cost of Equity (CAPM)12.64% (VRP-adj)
WACC12.36%
Volatility Risk Premium+30.8pp (IV − HV30), ERP adj +50bps
Effective Tax Rate21.0%
Rev. Growth (YoY, DCF input)+3.0%
DCF Horizon5 years explicit + fade
Forward Tilt (NTM/TTM)×1.03 (applied to P/E, EV/EBITDA, P/S)
Free Cash Flow (TTM)$-0.3B
Return on Equity (TTM)-161.0%
Book / Price4.9%
Debt / Equity0.77
Quality Score0/6 — cyclical/struggling (5y DCF)
SMA 50$50.05 (Market Anchor value)
SMA 20 / Bollinger Mid$43.75
Bollinger Width / SMA2068.0% (drives anchor stability)
Net Debt$-0.2B
Market Cap$5B
Peers used for multiples: ALKS, ARGX, BIIB, EWTX, LLY, NBIX, PRAX, PTCT
60-Day Conviction
42%
20-Day Fair Value
≈ by Nov 20, 2026
$43.13
α +0.3% rank 36%
conviction
21%
40-Day Fair Value
≈ by Dec 21, 2026
$43.99
α +2.3% rank 35%
conviction
69%
60-Day Fair Value
≈ by Jan 19, 2027
$43.49
α +1.1% rank 34%
conviction
42%
MethodImplied PriceWeightDetail
DCF n/a 0%
DDM (Gordon) n/a 0%
Peer P/E n/a 0% median 42.9× · 4 peers
Peer EV/EBITDA n/a 0% median 27.8× · 5 peers
Peer P/B $10.02 39% median 4.8× · 6 peers
Peer P/S n/a 0% median 4.4× · 5 peers
Market Anchor (SMA50) $50.05 0% stability 0% (BB-width)
Options Expected (B-L 30d) $42.85 61% 12 strikes · skew -0.19
As of 2026-10-22 · updated
About
Industry (SIC)
BIOLOGICAL PRODUCTS, (NO DIAGNOSTIC SUBSTANCES) (2836) · industry map
Exchange
XNAS
Market Cap
$5.0B
Employees
289
List Date
2018-05-24
CIK
0001727196
Next Earnings
2026-11-10 (Pre-Market)
EPS Forecast
($0.87) (7 est.)
Headquarters
Cambridge, MA
Homepage
https://www.scholarrock.com

Scholar Rock Holding Corp is a biopharmaceutical company focused on improving the lives of children and adults with Spinal Muscular Atrophy and other rare, severe, and debilitating neuromuscular diseases. Its pipeline candidates include apitegromab and a subcutaneous formulation of apitegromab. The clinical-stage pipeline also includes SRK-439, an investigational subcutaneously administered fully human anti-pro/latent myostatin antibody with high inhibitory potency and selectivity toward myostatin, being developed for the treatment of rare neuromuscular diseases. The company also maintains ear…

Summary
—
composite
—
No summary data available for this symbol yet.

Each spoke is this symbol's rank within its sector (0–100; the dotted ring marks the sector median at 50). Higher is more constructive for a long. One spoke — News sentiment — is an absolute reading, not a sector rank. Grayed spokes have no data. A fuller shape is a summary, not a recommendation.

Chart
Seasonality
'21'22'23'24'25'26Avg
Jan27.15%-27.84%26.30%-20.29%-8.56%3.60%0.06%
Feb-8.20%-6.45%-29.84%3.75%-3.07%-5.02%-8.14%
Mar-10.81%-23.82%-6.65%13.27%-11.26%13.06%-4.37%
Apr-30.61%-47.28%-24.17%-12.63%9.48%-5.55%-18.46%
May-17.32%-34.29%-12.61%-37.23%-11.45%6.32%-17.76%
Jun6.17%17.81%28.01%-12.13%19.02%16.06%12.49%
Jul5.82%28.71%-3.92%11.69%9.75%-11.25%6.80%
Aug15.11%32.80%-8.76%2.65%-10.20%23.88%9.25%
Sep-16.64%-20.25%12.88%-11.98%12.44%-13.54%-6.18%
Oct-17.81%37.66%80.37%281.74%-14.59%-6.85%*60.09%
Nov-1.30%-16.09%2.36%40.39%53.09%--15.69%
Dec-2.05%14.99%39.78%13.86%4.91%--14.30%
Total-48.84%-62.00%79.20%177.97%37.95%14.81%33.18%
Technical Indicators

Quick-reference for reading the values below. Indicators combine to confirm a view — no single one is a trade signal on its own.

Trend Indicators
  • SMA 20 / 50 / 200 — price above = uptrend, below = downtrend. SMA 50 crossing SMA 200 is the golden/death cross.
  • EMA 12 / 26 — faster-reacting averages; 12 above 26 is short-term bullish.
  • MACD — bullish when MACD > signal (green badge), bearish when below. Divergence from price often precedes reversals.
  • ADX (14) — trend strength regardless of direction. <20 range, 20–25 weak trend, 25–50 trend, >50 strong trend.
  • +DI / −DI — +DI > −DI favors bulls; the reverse favors bears. Read alongside ADX.
Momentum Oscillators
  • RSI (14) — <30 oversold, >70 overbought. 40–60 is neutral; trending names can stay extreme.
  • Stochastic %K / %D — <20 oversold, >80 overbought. %K crossing %D is an early momentum signal.
  • Williams %R — inverted scale: <−80 oversold, >−20 overbought.

Oscillators work best in range-bound markets; in strong trends they give premature reversal signals.

Volume & Volatility
  • Bollinger Bands — price at upper band = overbought, lower = oversold. Narrow bands (squeeze) often precede expansion.
  • OBV — cumulative volume; rising OBV confirms uptrend, falling OBV confirms downtrend. Divergence from price is a warning.
  • Vol SMA 20 / Vol ROC — today's volume vs. 20-day average. Positive ROC with price move = conviction.
  • ATR / True Range — average daily $ move; sizing and stop-loss reference.
  • HV 20 / 30 / 60 — realized (historical) volatility. Compare to IV on the options cards: IV > HV = rich premium.

Confluence matters: trend + momentum + volume agreeing carries far more weight than any single indicator. For how these feed the spread scanner score, see the algorithm docs →

Trend Indicators

SMA 20: $43.75
SMA 50: $50.05
SMA 200: $48.22
Current: $43.00
EMA 12: $42.15
EMA 26: $44.75
MACD: -2.5942 | Signal: 0.2029
BEARISH
ADX (14): 38.09
TREND
+DI: 15.99
−DI: 25.83

Momentum Oscillators

RSI (14): 42.98
NEUTRAL
Stoch %K: 29.29
Stoch %D: 19.80
Williams %R: -52.69

Volume & Volatility

BB Upper: $50.26
BB Lower: $37.25
NEUTRAL
OBV: 5,190,726
Vol SMA 20: 1,902,418
Vol ROC: 194.08%
ATR: $2.11
True Range: $1.88
HV 20: 43.4%
HV 30: 49.0%
HV 60: 48.8%

Data Summary

Data Points: 500
Last Updated:
Date Range: 2024-10-23T00:00:00 – 2026-10-21T00:00:00
AI Analysis

LLM Stock Analysis Report

Executive Summary

Overall Assessment: NEUTRAL (Confidence Level: 6/10)

Key Drivers:

  • Recent news headlines have had a mixed impact on sentiment
  • Technical indicators suggest a neutral to bullish trend

Primary Risks:

  • Bearish momentum if technical signals diverge from recent news
  • Volatility may increase as IV premium is currently high

Investment Thesis: The stock's beta and volatility metrics suggest moderate risk, while the options market is pricing in a relatively high expected move. A neutral to bullish trend is currently in place, but risks remain.

Recent News Sentiment Impact: The recent news headlines have had a mixed impact on sentiment. While some articles were neutral or positive, others were negative, resulting in a NEUTRAL overall assessment.

Technical Analysis

Trend Direction:

  • Short-term (1-4 weeks): NEUTRAL
  • Medium-term (1-3 months): BULLISH
  • Long-term (3-12 months): NEUTRAL

Support/Resistance Levels:

  • SMA 20: $55.88
  • Upper Bollinger Band: $60.40
  • Lower Bollinger Band: $51.36

Momentum Signals:

  • RSI: 58.46 (neutral)
  • MACD: Bullish signal above the signal line
  • Bollinger Bands: Neutral, with price touching the middle band

Volume Analysis:

  • Volume SMA 20: 1064320.85
  • On-Balance Volume (OBV): 53593942.04
  • Volume Rate of Change: 35.88%

News & Sentiment Analysis

Recent Headlines Summary: Mixed news headlines have had a neutral impact on sentiment, with some articles being positive and others negative.

Sentiment Assessment: NEUTRAL

Catalyst Identification: No recent catalysts identified

Market Narrative: The technical signals suggest a neutral to bullish trend, while the options market is pricing in a relatively high expected move. This may indicate that the market expects volatility to increase or a larger price movement.

Risk & Volatility Assessment

Beta Interpretation: Moderate risk (beta 0.95)

Volatility Regime: Current volatility is moderate compared to historical levels

Options Market Signals: IV premium is currently high, indicating a relatively high expected move

Downside Protection: Support at SMA 20: $55.88 and lower Bollinger Band: $51.36

Market Context & Positioning

Sector Performance: The stock's sector (Biotech) has been performing well recently

Institutional Activity: Institutional interest is moderate, as evidenced by the volume flow and open interest in options contracts

Correlation Analysis: The stock is moderately correlated with the broader market (R-squared 0.20)

Relative Valuation: The stock is positioned within a trading range, with no clear signs of being undervalued or overvalued

Key Levels & Action Items

Critical Price Levels:

  • SMA 20: $55.88
  • Upper Bollinger Band: $60.40
  • Lower Bollinger Band: $51.36

Breakout/Breakdown Levels: No clear levels identified, but the stock may be due for a breakout or breakdown if technical signals diverge from recent news

Time-Sensitive Catalysts: No upcoming catalysts identified

Risk Management: Stop-loss levels and position sizing considerations should be based on individual risk tolerance and market conditions

Generated
Earnings History
17 of 18 under expected move
Avg Expected Move
16.00%
Avg Actual Move
4.63%
Each row pairs the pre-earnings straddle-implied expected move with the realized close-to-close move. Sorted oldest first.
Earnings Date Timing Expected Move Actual Move Ratio Outcome
2021-03-09 Pre-Market 27.01% 7.88% 0.29x Within
2022-08-08 Pre-Market 16.47% 0.24% 0.01x Within
2023-05-09 Pre-Market 14.07% 5.98% 0.43x Within
2023-08-09 Pre-Market 17.24% 4.55% 0.26x Within
2023-11-07 Pre-Market 19.15% 1.48% 0.08x Within
2024-01-08 Pre-Market 15.37% 5.82% 0.38x Within
2024-03-19 Pre-Market 22.95% 14.77% 0.64x Within
2024-05-07 Pre-Market 18.13% 2.46% 0.14x Within
2024-08-08 Pre-Market 29.09% 0.97% 0.03x Within
2024-11-12 Pre-Market 11.99% 5.29% 0.44x Within
2025-02-27 Pre-Market 15.33% 2.86% 0.19x Within
2025-05-14 Pre-Market 12.10% 2.74% 0.23x Within
2025-08-06 After-Close 8.52% 9.30% 1.09x Exceeded
2025-11-14 After-Close 10.49% 2.51% 0.24x Within
2026-01-12 Pre-Market 11.50% 3.27% 0.28x Within
2026-03-03 Pre-Market 15.12% 1.91% 0.13x Within
2026-05-07 Pre-Market 10.08% 1.40% 0.14x Within
2026-08-06 Pre-Market 13.47% 9.96% 0.74x Within

Earnings calendar: this week’s reports with expected vs actual moves →

SRRK Options Activity & IV Rank

SRRK IV rank history, 52-week IV rank and IV percentile →

Volatility Metrics

Current IV: 59.0%
7-DTE IV: —
Expected Move: $5.95
7-DTE Move: $5.95
Days to Exp: 30 (2026-11-20)

Options Flow

Call Volume: 52
Put Volume: 86
P/C Volume: 1.654
BEARISH
Call OI: 895
Put OI: 697
P/C OI: 0.779
Total OI: 1,592

ATM Options Pricing

ATM Call: $2.00
ATM Put: $3.95
Call %: 4.7%
Put %: 9.2%

Chain Summary

Chain Volume: 1,692
Chain OI: 11,044
Last Updated: 10/21/2026
Spread Scanner GPU
Full Algorithm Docs ↗

Each spread is ranked by a composite score built in three stages. Full documentation →

Stage 1 — Base Score (GPU scanner)

score = P(profit) × (credit / spread_width)
P(profit) from short leg delta (1 − |delta|), penalised above 85%. Credit uses mid-price to handle illiquid chains fairly.

Stage 2 — Skew Adjustment (±25% cap)

RR and BF (30-delta) from the persisted per-symbol skew snapshot — wing strikes picked by real greeks.delta, not a moneyness proxy. Put skew boosts bull puts, penalises bear calls. High butterfly boosts iron condors. Calendars are skew-neutral.

Stage 3 — Technical Overlay (±50% cap, 5 groups)
Group 1 · Directional Bias (±0.25)
  • RSI <40 bullish / >60 bearish
  • MACD crossover + histogram trend
  • Price vs SMA 50 & SMA 200
Group 2 · Momentum (±0.10)
  • Stochastic %K <20 / >80
  • Williams %R <−80 / >−20
Group 3 · Volatility (up to −0.25 / +0.15)
  • Blended ATR + straddle expected-move penalty
  • Bollinger Band signal (+ counter-trend penalty)
  • BB width — vol contraction boost for ICs
Group 4 · IV Regime (±0.15)
  • IV rank ≥ 75 → strong boost for credit spreads
  • IV rank < 25 → penalty (selling cheap vol)
Group 5 · Liquidity (penalty up to −0.10)
  • Min open interest across all legs
  • OI < 100 → −0.10 · OI < 500 → −0.05

score = base_score × skew_multiplier × tech_multiplier
Both multipliers are shown per spread. Beta is informational only — ATR already captures realized vol. Full algorithm documentation →

Enter a ticker to scan for optimal spread opportunities.

Evaluates all bull put, bear call, iron condor, and calendar spread combinations using GPU-accelerated analysis.

Dealer Positioning
TYPICAL γ

Estimated net dealer gamma is at the 22nd percentile of this name's own daily history, within its typical range. This describes current positioning; it is not a forecast or a trading signal.

Gamma percentile
22%
vs own history
GEX tilt
-0.24
OI-weighted, today
Vanna tilt
+0.04
δ-sensitivity to IV
Charm tilt
+0.09
δ-decay vs time

Net dealer gamma is an estimate of the aggregate gamma held by options market makers across this name's option chain, weighted by open interest. Dealer positions aren't public, so it uses a standard simplifying assumption: dealers are treated as long the calls and short the puts that are open. Actual dealer books can differ.

Gamma percentile ranks today's estimate against this name's own daily history, from 0% (the lowest reading on record) to 100% (the highest). Raw gamma scales with how much open interest a chain carries, so it isn't comparable across names; the percentile is. The badge marks the bottom 20% as low and the top 20% as high.

Tilts run from −1 to +1 and show how lopsided the estimated dealer exposure is. GEX tilt compares call gamma with put gamma. Vanna tilt describes how the hedge would shift if implied volatility changed, and charm tilt how it would shift with the passage of time.

This card describes estimated positioning and where it sits historically. It is not a forecast of price direction or volatility and not a trading signal. Market-wide view: Dealer positioning screener.

· 10 ATM contracts, 3k total OI
Skew (Wing IV − ATM IV)
DTE:
Wing Δ:
Metric:
Wing vs ATM
IV(put wing) − IV(ATM), in vol points

How much the OTM put trades above (or below) the at-the-money strike. Measures the height of the put-side tail relative to ATM — i.e. how expensive crash insurance is on this name.

  • Positive (typical) — wing IV > ATM IV. Standard equity put skew: portfolios bid up crash protection, so OTM puts trade richer than ATM.
  • Near zero or negative (unusual) — wing IV ≤ ATM IV. Flat or inverted put side. Common when there's no fear demand, in tightly mean-reverting names, or right after an earnings catalyst clears.
  • Percentile vs own 3-yr history: high = wings rich (good time to sell wing premium); low = wings cheap (good time to buy protection).
  • Not directional — high or low wings don't predict up or down moves. It's a price tag on tail insurance, not a forecast.
Risk Reversal
IV(call wing) − IV(put wing), equal delta on each side

Which side of the smile is the market paying up for? Measures the tilt of the surface — call skew vs put skew at matched deltas.

  • Negative (typical) — puts richer than calls. Standard equity behavior: hedging demand makes puts carry a premium. Most large-caps sit in the −1 to −5 vol-point range.
  • Strongly negative (< −5 pts) — heavy downside hedging, elevated fear, or an upcoming catalyst (earnings, FDA, macro event). Worth flagging.
  • Positive — calls richer than puts. Unusual for equities; signals bullish momentum, short-squeeze positioning, or takeover/M&A speculation.
  • Near zero — symmetric surface. Market sees roughly equal up/down risk. Rare for large-caps; more common in commodities and FX.
Reading them together

Wing-vs-ATM tells you how expensive the tails are. Risk Reversal tells you which side is favored. Combined:

  • High wing percentile + deeply negative RR → strong put bid; stress or major event priced in. Owning protection costs a premium; selling put premium is dangerous.
  • Low wing percentile + near-zero RR → complacency; insurance cheap and balanced. Good environment to add cheap downside hedges.
  • Positive RR + elevated wings → call-side fear-of-missing-out; common in squeeze setups. Upside calls expensive, downside puts not bid.
14 DTE / 10d —
— pts EXTREME
as of Oct 21 · No data
30 DTE / 10d —
— pts EXTREME
as of Oct 21 · ATM 56.9% / Wing —

Percentile is the rank of today's reading within ~3 years of this symbol's own history. High percentile = wings are rich relative to history; not a directional signal. Skew is read off the chain in real time, not from CBOE SKEW.

Volatility Surface

Enter a ticker to render the implied volatility surface.

Volatility Smile

Enter a ticker to render the implied volatility smile.

IV Rank (7 DTE)
IV Rank (30 DTE)43.7MediumOct 21
Straddle Price (30 DTE)$5.95Oct 21
Beta Analysis

Risk Metrics

Beta: 1.0579
Alpha: 41.46%
Correlation: 0.2414
R-Squared: 5.8%
Stock Volatility: 55.7%
Market Volatility: 12.7%

Analysis Details

Benchmark: SPY
Data Points: 251
Period: 252 trading days
Interpretation:
Above average volatility - stock moves with market amplification
Beta & Alpha Over Time
Notable investors who own SRRK
4 of 37 tracked investors
InvestorValueShare of their portfolioRankQ/Q sharesSource
Citadel Hedge fund
Ken Griffin
$18.3M
0.01%
#1196 of 6285-63.2%13F
Renaissance Technologies Hedge fund
Jim Simons
$5.0M
0.01%
#1463 of 3138new13F
Millennium Management Hedge fund
Izzy Englander
$994K
0.00%
#2908 of 3716new13F
Rockefeller Capital Management Family office
Rockefeller family
$79K
0.00%
#3114 of 47290.0%13F

Hedge funds, activists, holding companies and family offices we track, from their latest 13F (quarter-end value) and Form 4 filings in the last 3 years. Family offices · all institutions

SRRK Institutional Ownership (13F)

Latest filings — 2026-09-30
Diluted shares outstanding: 121,580,220 (as of 2026-06-30)

Institutional managers with $100M+ AUM file Form 13F-HR quarterly, due 45 days after quarter end. Holdings are reported gross at quarter-end market value — they are a snapshot, not a real-time position.

  • Shares — long equity positions in this name, aggregated across share classes.
  • Calls / Puts — notional value of long call / put exposure where this ticker is the underlying.
  • % of Float — holder's reported shares divided by the latest diluted shares outstanding. Sums above 100% indicate large custodian / prime broker positions where the same shares are reported by multiple filers.
  • Custodian badge — filers with more than 5,000 holdings are typically broker-dealers / custodians reporting customer-held shares, not active managers.

Each filer is counted once at its latest 13F-HR filing. New filings are ingested on a weekly cadence.

321 filers146,493,595 shares$7.98B value120.49% of float
# Filer Shares Value % of Total % of Float Period
1 FMR LLC Custodian 17,995,241 $989.74M 12.40% 14.80% 2026-06-30
2 Siren, L.L.C. 9,575,013 $526.63M 6.60% 7.88% 2026-06-30
3 BlackRock, Inc. Custodian 9,494,084 $522.17M 6.54% 7.81% 2026-06-30
4 Samsara BioCapital, LLC 6,897,652 $379.37M 4.75% 5.67% 2026-06-30
5 T. Rowe Price Associates, Inc. 6,794,837 $373.72M 4.68% 5.59% 2026-06-30
6 Wellington Management Group LLP Custodian 6,727,085 $369.99M 4.64% 5.53% 2026-06-30
7 Orbis Allan Gray Ltd 5,933,533 $326.34M 4.09% 4.88% 2026-06-30
8 Vanguard Capital Management LLC 4,767,880 $262.23M 3.29% 3.92% 2026-06-30
9 State Street Corp 4,728,681 $260.08M 3.26% 3.89% 2026-06-30
10 Redmile Group, LLC 4,311,092 $237.11M 2.97% 3.55% 2026-06-30
11 Vanguard Group Inc Custodian 5,195,465 $228.86M 2.87% 4.27% 2025-12-31
12 Norges Bank 2,769,910 $152.35M 1.91% 2.28% 2026-06-30
13 Geode Capital Management, LLC Custodian 2,753,787 $151.49M 1.90% 2.27% 2026-06-30
14 Massachusetts Financial Services Co 2,607,348 $143.39M 1.80% 2.14% 2026-06-30
15 Bellevue Group AG 2,449,547 $134.73M 1.69% 2.01% 2026-06-30
16 Jennison Associates LLC 2,358,587 $129.72M 1.63% 1.94% 2026-06-30
17 Jupiter Topco LLC 2,242,106 $123.28M 1.54% 1.84% 2026-06-30
18 Hood River Capital Management LLC 2,224,788 $122.36M 1.53% 1.83% 2026-06-30
19 Driehaus Capital Management LLC 2,205,618 $121.31M 1.52% 1.81% 2026-06-30
20 EVENTIDE ASSET MANAGEMENT, LLC 2,111,410 $116.13M 1.46% 1.74% 2026-06-30
21 Janus Henderson Group plc 2,236,837 $109.89M 1.38% 1.84% 2026-03-31
22 Polar Capital Holdings Plc 1,878,580 $103.32M 1.29% 1.55% 2026-06-30
23 Holocene Advisors, LP 1,755,978 $96.58M 1.21% 1.44% 2026-06-30
24 ADAGE CAPITAL PARTNERS GP, L.L.C. 1,731,402 $95.23M 1.19% 1.42% 2026-06-30
25 Morgan Stanley Custodian 1,538,776 $84.63M 1.06% 1.27% 2026-06-30
4 filers$12.29M notional
# Filer Notional Value % of Total Period
1 Susquehanna International Group, LLP Custodian $8.62M 70.19% 2026-06-30
2 Citadel Advisors LLC Custodian $1.46M 11.91% 2026-06-30
3 Jane Street Group, LLC Custodian $1.36M 11.10% 2026-06-30
4 Point72 Asset Management, L.P. $836.00K 6.80% 2026-06-30
6 filers$19.28M notional
# Filer Notional Value % of Total Period
1 Susquehanna International Group, LLP Custodian $8.89M 46.09% 2026-06-30
2 Citadel Advisors LLC Custodian $5.57M 28.86% 2026-06-30
3 Jane Street Group, LLC Custodian $2.69M 13.98% 2026-06-30
4 LMR Partners LLP $1.26M 6.56% 2026-06-30
5 Caption Management, LLC $594.00K 3.08% 2026-06-30
6 HAP TRADING, LLC $275.06K 1.43% 2025-09-30

SRRK Insider Trading (Form 4)

Latest: 2026-09-25
Form 4 filings — insider beneficial-ownership changes by officers, directors, and 10%+ holders. Filed within 2 business days of transaction.
Filed Reporter Role Action Shares Avg Price Net $ Link
2026-09-25 Keith Woods Chief Operating Officer Gift (G) −48,034 — EDGAR
2026-09-23 David Hallal Chief Executive Officer Gift (G) −36,652 — EDGAR
2026-07-06 Jeffrey S. Flier Director Sell (S) −3,053 $53.88 -$164.5K EDGAR
2026-07-06 Joshua Reed Director Sell (S) −3,053 $53.74 -$164.1K EDGAR
2026-07-06 Katie Peng Director Sell (S) −5,446 $53.88 -$293.4K EDGAR
2026-07-06 Kristina Burow Director Sell (S) −3,053 $53.74 -$164.1K EDGAR
2026-07-06 Michael Gilman Director Sell (S) −2,544 $53.87 -$137.1K EDGAR
2026-06-08 Srinivas Akkaraju Director Award (A) +6,839 — EDGAR
2026-06-08 Michael Gilman Director Award (A) +6,839 — EDGAR
2026-06-08 Kristina Burow Director Award (A) +6,839 — EDGAR
2026-06-08 Richard Brudnick Director Award (A) +6,839 — EDGAR
2026-06-08 Jeffrey S. Flier Director Award (A) +6,839 — EDGAR
2026-06-08 Katie Peng Director Award (A) +6,839 — EDGAR
2026-06-08 Joshua Reed Director Award (A) +6,839 — EDGAR
2026-04-24 Kristina Burow Director Exer (M) +89,800 $9.14 $820.3K EDGAR
Codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (described in filing footnote — typically 401(k), trust, inheritance) · W = will/inheritance. Only P / S codes carry directional signal.

SRRK Insider Holdings

22 insiders · @ $43.00
Officers, directors, and 10%+ owners who have filed a Form 4 in the past two years, ranked by current disclosed exposure (shares × today's price). Shares are direct + indirect (via trusts / LLCs / spouse). Excludes unvested RSU and option grants — those aren't beneficially owned until vest.
# Insider Role Shares Disclosed Exposure Lifetime OM Net Filings Last Filed
1 Raymond Debbane 10%+ Owner 11,051,166 $475.20M -$78.79M 1 2024-11-27
2 Invus Global Management, LLC 10%+ Owner 10,825,013 $465.48M $0 1 2026-02-06
3 Invus Public Equities, L.P. 10%+ Owner 9,700,005 $417.10M -$160.57M 5 2024-12-12
4 Kristina Burow Director 2,461,316 $105.84M -$324.6K 14 2026-07-06
5 David Hallal Chief Executive Officer 1,639,034 $70.48M -$3.97M 16 2026-09-23
6 Akshay Vaishnaw President of R&D 630,542 $27.11M -$1.68M 13 2026-04-20
7 Keith Woods Chief Operating Officer 620,055 $26.66M -$1.22M 6 2026-09-25
8 Vikas Sinha Chief Financial Officer 619,856 $26.65M -$1.23M 5 2026-04-20
9 Srinivas Akkaraju Director 558,009 $23.99M $603.3K 9 2026-06-08
10 Jay T. Backstrom CHIEF EXECUTIVE OFFICER 425,561 $18.30M -$1.85M 7 2025-03-12
Lifetime OM Net = signed sum of open-market buys (P) and sells (S) over their career; excludes grants, tax withholdings, and dispositions to issuer. A large negative number is normal for long-tenured executives — they've sold compensation grants over many years.

SRRK Board & Officers

As of SEC filings through Sep 25, 2026

Directors 9

Officers 9

10% owners 3

Changes in the last 10 years (88)
Apr 29, 2025David Hallal first listed as Chief Executive Officer in an SEC filing
Apr 29, 2025Akshay Vaishnaw first listed as President of R&D in an SEC filing
Apr 27, 2025Vikas Sinha became Chief Financial Officer
Apr 27, 2025Keith Woods became Chief Operating Officer
Apr 26, 2025The company announced the departure of Jay T. Backstrom from the board in an SEC filing
Mar 21, 2025The company announced the departure of Edward H Myles as COO & CFO in an SEC filing
Mar 21, 2025Erin Moore listed as Interim PFO and PAO (previously SVP, Finance) in SEC filings
Jul 25, 2024Siren, L.L.C. became a 10% owner
Jul 25, 2024Raymond Debbane became a 10% owner
Jul 25, 2024Invus Global Management, LLC became a 10% owner
Jul 1, 2024Srinivas Akkaraju no longer listed as a 10% owner in SEC filings
Feb 15, 2024The company announced the departure of Amir Nashat from the board in an SEC filing
Feb 15, 2024Katie Peng became a director
Feb 13, 2024Mo Qatanani listed as Chief Scientific Officer (previously SVP and Head of Research) in SEC filings
Feb 13, 2024Jay T. Backstrom first listed as a director in an SEC filing
Oct 18, 2023Srinivas Akkaraju first listed as a 10% owner in an SEC filing
Jun 21, 2023Tracey Sacco became Chief Commercial Officer
Jun 21, 2023Mo Qatanani became SVP and Head of Research
Apr 6, 2023Richard Brudnick became a director
Feb 15, 2023Jay T. Backstrom listed as Chief Executive Officer (previously CEO-Elect) in SEC filings
Not reported recently (28)
Compiled from SEC filings by the company and its directors and officers. Dates are as stated in those filings. Where no filing says when someone left, we show the last filing that listed them.

SRRK Proposed Insider Sales (Form 144)

Latest: 2026-10-01
Last 30d: 1 filing · $49K notice value  ·  Last 90d: 1 filing · $49K notice value · 1 unique filer · 100% under 10b5-1 plans

What is Form 144? A notice of intent to sell restricted or control stock under Rule 144. Affiliates (officers, directors, 10%+ owners) and holders of restricted shares must file Form 144 when planning to sell more than 5,000 shares or $50,000 in any 3-month rolling window.

How it relates to Form 4: Form 144 is filed before the trade (up to 90 days in advance); Form 4 is filed within 2 business days after the trade executes. Not every Form 144 results in a sale — the filer may cancel or delay. Look for the corresponding Form 4 on the Insider Activity card to confirm a sale actually happened.

10b5-1 plans: Trades made under a pre-scheduled Rule 10b5-1 plan are not discretionary — they execute automatically on dates set months earlier, regardless of news. High 10b5-1 percentages mean less per-filing signal value, though cumulative selling volume still matters.

"Notice value": Aggregate market value the filer wrote into the Form 144 — i.e. the size of the planned sale, not necessarily the executed dollars. An amended notice (Form 144/A) replaces the original it amends, and cancelled notices are dropped, so neither is double-counted above. A filed value that is clearly inconsistent with the share count at the stock's price (a filer typo) shows as a dash and is left out of the totals.

Source & freshness: Sourced from public Form 144 filings. Refreshed daily; new filings typically appear here the morning after they are filed.

Top 90-day filers: Katie Peng (1, $49K)
Filed Filer Role Shares Notice Value Planned Sale Broker Plan Link
2026-10-01 Katie Peng Director 1,006 $48.6K 2026-10-01 J.P. Morgan Securities LLC 10b5-1 EDGAR
2026-07-06 Mohammed Qatanani Officer 11,704 $640.0K 2026-07-06 J.P. Morgan Securities LLC 10b5-1 EDGAR
2026-07-01 Joshua Reed Director 3,053 $167.3K 2026-07-01 J.P. Morgan Securities LLC 10b5-1 EDGAR
2026-07-01 Jeffrey S. Flier Director 3,053 $167.3K 2026-07-01 J.P. Morgan Securities LLC 10b5-1 EDGAR
2026-07-01 Kristina Burow Director 3,053 $167.3K 2026-07-01 J.P. Morgan Securities LLC 10b5-1 EDGAR
2026-07-01 Michael Gilman Director 2,544 $139.4K 2026-07-01 J.P. Morgan Securities LLC 10b5-1 EDGAR
2026-07-01 Katie Peng Director 5,446 $298.4K 2026-07-01 J.P. Morgan Securities LLC 10b5-1 EDGAR
2026-04-06 Mohammed Qatanani Officer 23,408 $1.17M 2026-04-06 J.P. Morgan Securities LLC 10b5-1 EDGAR
2026-02-23 Mohammed Qatanani Officer 8,484 $409.9K 2026-02-23 J.P. Morgan Securities LLC 10b5-1 EDGAR
2026-01-22 Mohammed Qatanani Officer 14,898 $686.1K 2026-01-22 J.P. Morgan Securities LLC 10b5-1 EDGAR
Notice value is the aggregate market value the filer states they intend to sell — not a confirmed transaction. Compare to Insider Activity (Form 4) to see which planned sales actually executed. Market-wide feed: Planned sales (Form 144).
ETF Holders
68 ETFs hold SRRK
25 shown · $691.99M total exposure · 0.11% AUM-weighted avg weight
# ETF Provider Weight $ Exposure ETF AUM As Of
1 VTI Vanguard Morningstar Total Stock Market ETF Vanguard 0.01% $166.5M — 2026-09-30
2 IWM iShares Russell 2000 ETF iShares (BlackRock) 0.16% $117.2M $75.1B 2026-10-20
3 XBI State Street® SPDR® S&P® Biotech ETF SPDR (State Street) 0.75% $78.6M $10.4B 2026-10-20
4 VB Vanguard Morningstar Small-Cap ETF Vanguard 0.03% $59.5M — 2026-09-30
5 VXF Vanguard Extended Market ETF Vanguard 0.06% $55.8M — 2026-09-30
6 IWO iShares Russell 2000 Growth ETF iShares (BlackRock) 0.30% $40.1M $13.6B 2026-10-20
7 VBK Vanguard Morningstar Small-Cap Growth ETF Vanguard 0.08% $33.2M — 2026-09-30
8 IBB iShares Biotechnology ETF iShares (BlackRock) 0.29% $31.5M $11.0B 2026-10-20
9 VTWO Vanguard Russell 2000 ETF Vanguard 0.18% $31.4M — 2026-09-30
10 SCHA Schwab U.S. Small-Cap ETF Nport 0.09% $20.1M — 2026-05-31
11 VHT Vanguard Health Care ETF Vanguard 0.05% $11.9M — 2026-09-30
12 TMSL T. Rowe Price Small-Mid Cap ETF Nport 0.33% $9.0M — 2026-06-30
13 ITOT iShares Core S&P Total U.S. Stock Market ETF iShares (BlackRock) 0.01% $5.6M $97.4B 2026-10-20
14 VTWG Vanguard Russell 2000 Growth ETF Vanguard 0.33% $5.5M — 2026-09-30
15 VT Vanguard Total World Stock ETF Vanguard 0.00% $4.5M — 2026-09-30
16 FBCG Fidelity Blue Chip Growth ETF Nport 0.05% $3.8M — 2026-07-31
17 LABU Direxion Daily S&P Biotech Bull 3X ETF Direxion 0.50% $3.2M — 2026-10-21
18 IWN iShares Russell 2000 Value ETF iShares (BlackRock) 0.02% $2.6M $13.7B 2026-10-20
19 SCHB Schwab U.S. Broad Market ETF Nport 0.01% $2.4M — 2026-05-31
20 RSSL Global X Russell 2000 ETF Global X 0.16% $2.3M — 2026-10-21
21 FESM Fidelity Enhanced Small Cap Core ETF Fidelity 0.03% $1.8M $6.6B 2026-10-20
22 FHLC Fidelity MSCI Health Care Index ETF Fidelity 0.04% $1.7M $3.8B 2026-10-20
23 PRFZ Invesco RAFI US 1500 Small-Mid ETF Nport 0.05% $1.3M — 2026-07-31
24 SMLF iShares U.S. Small-Cap Equity Factor ETF iShares (BlackRock) 0.03% $1.2M $4.2B 2026-10-20
25 IWV iShares Russell 3000 ETF iShares (BlackRock) 0.01% $1.2M $20.6B 2026-10-20
Fundamentals

Quarterly filings sourced from SEC 10-Q / 10-K reports. TTM tiles aggregate the most recent four quarters; bars show the last ~12 quarters oldest → newest.

Metrics
  • Revenue — top-line sales. Look for consistent YoY growth; seasonal businesses need same-quarter comparisons (Q4 '24 vs Q4 '23).
  • Net Income — bottom-line profit after all expenses. Can be volatile from one-time items; red bars = net loss.
  • Diluted EPS — net income per share assuming options/converts are exercised. Direct input to the P/E ratio.
  • Operating Cash Flow — cash generated from core operations, before capex and financing. Harder to manipulate than net income; growing OCF is a quality signal.
How to read the bars
  • Sequential growth — quarter-over-quarter trend. Accelerating bars are a momentum signal.
  • YoY growth — compare to the same quarter a year earlier to remove seasonality.
  • Quality — OCF should roughly track Net Income over time. Large divergence (net income ≫ OCF) flags accruals risk.
  • Margins — scan the bar ratios: Net Income / Revenue tells you margin trend without needing a separate chart.

TTM (trailing-twelve-month) smooths seasonality and is used for the P/E calculation. Filings appear 30–90 days after the period closes.

Trailing P/E
—
TTM Diluted EPS
$-3.32
TTM Revenue
—
TTM Net Income
$-408.59M
TTM Op. Cash Flow
$-296.83M
Quarterly figures (12 quarters)
QuarterPeriod EndRevenueNet IncomeDiluted EPSOp. Cash Flow
Q2 '262026-06-30—$-109.90M$-0.84$-70.31M
Q1 '262026-03-31—$-105.51M$-0.83$-82.10M
Q4 '252025-12-31—$-90.97M$-0.75$-75.50M
Q3 '252025-09-30—$-102.22M$-0.90$-68.92M
Q2 '252025-06-30—$-110.03M$-0.98$-76.94M
Q1 '252025-03-31—$-74.72M$-0.67$-78.67M
Q4 '242024-12-31—$-66.45M$-0.61$-49.51M
Q3 '242024-09-30—$-64.48M$-0.66$-52.45M
Q2 '242024-06-30—$-58.51M$-0.60$-49.20M
Q1 '242024-03-31—$-56.85M$-0.59$-49.78M
Q4 '232023-12-31—$-46.13M$-0.50$-37.35M
Q3 '232023-09-30—$-42.36M$-0.53$-32.27M
Q2 2026 • period ending 2026-06-30 • filed 2026-08-06
Valuation

Ratios derived from TTM financials and the current market price, sampled daily. History chart shows how expensive the stock is today relative to its own recent past.

Price Multiples
  • P/E — price / TTM earnings. Rough market rule: 10–15 value, 15–25 market, >30 growth/premium. Negative when earnings are negative.
  • P/B — price / book value. Useful for financials and asset-heavy names; meaningless for asset-light software.
  • P/S — price / TTM revenue. Useful when earnings are negative or noisy (early-stage growth).
  • EV/EBITDA — capital-structure-neutral. <10 cheap, 10–15 reasonable, >20 rich. Good for comparing across leverage profiles.
  • EV/Sales — like P/S but accounts for debt + cash. Compare within sector.
Profitability & Yields
  • ROE — return on equity. >15% strong, >25% exceptional. Caution: high leverage inflates ROE.
  • ROA — return on assets. Leverage-neutral; >5% solid, >10% exceptional.
  • Div Yield — annual dividend / price. Compare to 10Y Treasury; sustained yield >6% often signals distress.
  • FCF Yield — free cash flow / market cap. >5% is attractive; negative means burning cash.
Balance Sheet
  • Debt/Equity — leverage. <1 conservative, >2 aggressive. Sector-dependent (utilities naturally high, tech low).
  • Current Ratio — short-term liquidity. >1.5 comfortable, <1 raises short-term solvency flags.
Reading the history chart
  • Compare current level to the 3-year band: near the high end = relatively expensive; near the low = relatively cheap.
  • Multiples expanding while earnings are flat = sentiment-driven rally.
  • Multiples compressing while earnings grow = value coming from fundamentals.
P/E
—
P/B
20.60
P/S
—
EV/EBITDA
—
EV/Sales
—
ROE
-161.0%
ROA
-78.0%
Div Yield
0.00%
FCF Yield
-5.68%
Debt/Equity
0.77
Current Ratio
—
Market Cap
$5.23B
as of 2026-10-21
Short Interest & Float

Regulatory short-interest reports publish on a bi-weekly settlement cadence; short-volume is reported daily by the trade-reporting facilities. Float is derived from insider-ownership filings.

Metric definitions
  • Short Interest — total shares currently sold short as of the settlement date. Lags real time by ~8 business days.
  • SI % of Float — short interest / free float. The key crowding metric.
  • Days to Cover — short interest / avg daily volume. How many full trading days it would take shorts to buy back. High DTC + catalyst = squeeze fuel.
  • Short Vol Ratio — today's short-sale volume / total volume. Intraday selling pressure proxy (not the same as short interest).
  • Free Float — shares available for public trading (total shares minus insider / restricted).
  • Float % — free float / shares outstanding. <50% = tightly held, more prone to squeezes.
How to read the signals
  • SI % of Float < 5% — typical, no particular signal.
  • 5–15% — elevated; watch for catalysts (earnings, guidance, macro).
  • 15–30% — heavily shorted; tight-float names in this range have produced notable squeezes historically.
  • >30% — extreme; borrow is likely expensive and squeeze risk is material.
  • Days to Cover > 5 combined with high SI% amplifies squeeze potential.
History chart
  • Trend matters more than level. Rapidly rising short interest often precedes negative catalysts or heavy hedging.
  • A sudden drop in SI after a rally may indicate a squeeze in progress.

Short interest is reported mid-month and end-of-month; short volume is daily.

Short Interest
22.72M
SI % of Float
20.81%
Days to Cover
9.32
Short Vol Ratio
87.4%
Free Float
109.19M
Float %
89.7%
Short interest 2026-09-30 • Short volume 2026-10-21 • Float 2026-09-22