ALT Altimmune, Inc. Common Stock

XNAS 2.23 Delayed
Find condors

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.

ALT $2.23 —
Key stats
$2.23
Pre-market $2.22 -0.45%
52-Week Range
$2.17 – $6.44
YTD
-36.47%
IV Rank (30D)
15.85
Straddle Price
$0.60
P/C Vol Ratio
0.06
Market Cap
$0.4B
Open
$2.31
Day Range
$2.19 – $2.35
Volume
4,501,775
Prev Close
$2.30
Fair Value
+50.0% vs price

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 SPY1.07
Cost of Equity (CAPM)11.04% (VRP-adj)
WACC10.41%
Volatility Risk Premium+146.5pp (IV − HV30), ERP adj +50bps
Effective Tax Rate21.0%
Rev. Growth (YoY, DCF input)+3.0%
DCF Horizon10 years explicit + fade
Forward Tilt (NTM/TTM)×1.03 (applied to P/E, EV/EBITDA, P/S)
Free Cash Flow (TTM)$-0.1B
Return on Equity (TTM)-19.4%
Book / Price168.3% — banking bias active (P/B is primary)
Gross Margin (TTM)100.0%
FCF Margin (TTM)-246974.2%
Debt / Equity0.07
Quality Score2/6 — normal (10y DCF)
SMA 50$2.95 (Market Anchor value)
SMA 20 / Bollinger Mid$2.61
Bollinger Width / SMA201602.0% (drives anchor stability)
Net Debt$-0.0B
Market Cap$0B
Peers used for multiples: ALKS, DNTH, XENE (filtered from 8 ETF-co-members; sector bias active)
Blended Fair Value
$5.11
Deviation
+50.0%
MethodImplied PriceWeightDetail
DCF n/a 0%
DDM (Gordon) n/a 0%
Peer P/E n/a 0%
Peer EV/EBITDA n/a 0%
Peer P/B $14.11 19% median 3.8× · 3 peers
Peer P/S n/a 0%
Market Anchor (SMA50) $2.95 81% stability 81% (BB-width)
Options Expected (B-L 30d) $2.26 0% 8 strikes · skew +0.28
As of 2026-10-22 · updated
About
Industry (SIC)
PHARMACEUTICAL PREPARATIONS (2834) · industry map
Exchange
XNAS
Market Cap
$0.4B
Employees
57
List Date
2005-10-06
CIK
0001326190
Next Earnings
2026-11-05 (Pre-Market)
EPS Forecast
($0.14) (4 est.)
Headquarters
Gaithersburg, MD
Homepage
https://www.altimmune.com

Altimmune Inc is a late clinical-stage biopharmaceutical company developing therapies for patients with serious liver diseases. The Company's key candidate, pemvidutide, is a dual-action therapy targeting both glucagon and GLP-1 receptors in a balanced 1:1 ratio in development for the treatment of metabolic dysfunction-associated steatohepatitis (MASH), alcohol use disorder (AUD), and alcohol-associated liver disease (ALD). The company also plans to pursue additional indications for pemvidutide that leverage the differentiated clinical profile of pemvidutide.

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
Jan12.35%-14.60%-12.73%-10.27%-6.61%59.54%4.61%
Feb-4.61%-7.14%-8.64%22.47%3.26%-22.34%-2.83%
Mar-13.89%-16.46%-64.98%-15.80%-16.53%-25.96%-25.60%
Apr3.36%-27.33%14.25%-35.97%10.64%-16.67%-8.62%
May-9.45%7.20%-17.89%6.22%5.03%8.16%-0.12%
Jun-20.95%137.80%-14.94%-11.21%-26.98%1.00%10.79%
Jul-9.66%6.66%-4.06%-11.67%-12.77%-11.40%-7.15%
Aug62.23%82.48%-20.19%10.02%6.09%3.67%24.05%
Sep-26.42%-41.50%-1.89%-3.76%0.53%-7.44%-13.41%
Oct-9.62%-2.26%-5.12%7.15%4.65%-19.20%*-4.07%
Nov-5.50%-20.46%28.98%27.15%32.83%--12.60%
Dec-7.01%52.46%215.13%-18.53%-26.77%--43.06%
Total-41.52%65.63%-35.45%-41.99%-35.32%-42.64%-21.88%
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: $2.61
SMA 50: $2.95
SMA 200: $3.35
Current: $2.23
EMA 12: $2.43
EMA 26: $2.65
MACD: -0.2235 | Signal: -0.0336
BEARISH
ADX (14): 37.02
TREND
+DI: 13.56
−DI: 32.55

Momentum Oscillators

RSI (14): 26.15
OVERSOLD
Stoch %K: 11.94
Stoch %D: 9.52
Williams %R: -90.62

Volume & Volatility

BB Upper: $3.16
BB Lower: $2.06
NEUTRAL
OBV: -157,532,369
Vol SMA 20: 3,799,025
Vol ROC: 41.65%
ATR: $0.12
True Range: $0.16
HV 20: 43.3%
HV 30: 43.9%
HV 60: 48.6%

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: BULLISH with confidence level (8/10) Key drivers: + Positive news sentiment aligns with technical signals + Momentum indicators suggest a potential uptrend Primary risks: + High volatility may lead to increased risk + Options market pricing $0.53 move by expiration

Investment thesis: The stock has the potential to continue its upward trend driven by positive news sentiment and momentum indicators, but investors should be cautious of high volatility.

Recent news sentiment impact: Positive news headlines have contributed to the stock's recent gains, with 5 out of 6 recent headlines having a positive sentiment.

Technical Analysis Trend direction: + Short-term (1-4 weeks): Bullish + Medium-term (1-3 months): Bullish + Long-term (3-12 months): Neutral

Support/Resistance levels: Key price levels include $2.90 (SMA 20 and SMA 50), $3.02 (EMA 12), and $3.30 (Upper Bollinger Band).

Momentum signals: + RSI interpretation: Neutral (55.01) + MACD signal: Bullish (0.06 above signal line) + Bollinger Bands position: Squeeze

Volume analysis: Volume trends are mixed, with a volume rate of change indicating increasing interest.

News & Sentiment Analysis Recent headlines summary: + Positive news sentiment dominates recent headlines Catalyst identification: + Recent news headlines have driven the stock's gains Market narrative: The market is responding positively to recent developments in the company.

Risk & Volatility Assessment Beta interpretation: High risk (1.52 vs SPY) Volatility regime: High volatility

Options market signals: + IV rank: Low (11.2%) + Put/call ratios: Bullish sentiment Unusual activity: Volume flow favors calls, and open interest is skewed towards calls.

Downside protection: Support levels include $2.90 (SMA 20 and SMA 50) and $2.50 (Lower Bollinger Band).

Market Context & Positioning Sector performance: The stock has outperformed the sector. Institutional activity: Volume patterns suggest institutional interest is increasing. Correlation analysis: The stock has a low correlation with the market.

Relative valuation: The stock is trading within its historical range.

Key Levels & Action Items Critical price levels: + $2.90 (SMA 20 and SMA 50) + $3.02 (EMA 12) + $3.30 (Upper Bollinger Band)

Breakout/breakdown levels: None identified

Time-sensitive catalysts: + Earnings dates not available Risk management: + Stop-loss levels should be set around $2.90 + Position sizing considerations should prioritize risk management

Generated
News
All ALT news →
Earnings History
21 of 22 under expected move
Avg Expected Move
18.06%
Avg Actual Move
5.48%
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
2021-02-25 Pre-Market 32.33% 12.16% 0.38x Within
2021-05-17 Pre-Market 14.57% 5.98% 0.41x Within
2021-08-10 Pre-Market 13.86% 4.02% 0.29x Within
2021-11-09 Pre-Market 54.60% 0.46% 0.01x Within
2022-03-15 Pre-Market 14.00% 8.24% 0.59x Within
2022-05-12 Pre-Market 36.04% 8.63% 0.24x Within
2022-08-11 Pre-Market 20.06% 7.08% 0.35x Within
2022-11-10 Pre-Market 12.38% 9.18% 0.74x Within
2023-02-28 Pre-Market 23.08% 6.42% 0.28x Within
2023-05-11 Pre-Market 11.65% 7.03% 0.60x Within
2023-08-10 Pre-Market 11.86% 3.05% 0.26x Within
2023-11-07 Pre-Market 38.20% 1.12% 0.03x Within
2024-03-27 Pre-Market 15.03% 2.77% 0.18x Within
2024-08-08 Pre-Market 14.55% 15.09% 1.04x Exceeded
2024-11-12 After-Close 12.38% 0.32% 0.03x Within
2025-02-27 Pre-Market 9.68% 8.08% 0.83x Within
2025-05-13 Pre-Market 17.05% 4.16% 0.24x Within
2025-08-12 Pre-Market 11.83% 7.10% 0.60x Within
2025-11-06 Pre-Market 17.33% 5.07% 0.29x Within
2026-03-05 After-Close 2.85% 1.00% 0.35x Within
2026-05-13 Pre-Market 8.93% 1.95% 0.22x Within
2026-08-12 After-Close 5.12% 1.71% 0.33x Within

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

ALT Options Activity & IV Rank

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

Volatility Metrics

Current IV: 96.4%
7-DTE IV: 183.5%
Expected Move: $0.60
7-DTE Move: $1.40
Days to Exp: 30 (2026-11-20)

Options Flow

Call Volume: 392
Put Volume: 24
P/C Volume: 0.061
BULLISH
Call OI: 3,938
Put OI: 3,977
P/C OI: 1.01
Total OI: 7,915

ATM Options Pricing

ATM Call: $0.38
ATM Put: $0.23
Call %: 16.8%
Put %: 10.1%

Chain Summary

Chain Volume: 3,239
Chain OI: 182,343
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 27th 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
27%
vs own history
GEX tilt
+0.61
OI-weighted, today
Vanna tilt
-0.38
δ-sensitivity to IV
Charm tilt
-0.68
δ-decay vs time
Vanna tilt -0.38: the estimated dealer exposure leans negative, so the modeled hedge would shift noticeably if implied volatility changed.
Charm tilt -0.68: the estimated dealer exposure leans negative, so the modeled hedge would shift noticeably as time passes and options approach expiry.

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.

· 16 ATM contracts, 19k 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 · ATM 436.1% / Wing —
30 DTE / 10d —
— pts EXTREME
as of Oct 21 · ATM 99.4% / 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)63.7MediumOct 21
IV Rank (30 DTE)15.8LowOct 21
Straddle Price (30 DTE)$0.60Oct 21
Beta Analysis

Risk Metrics

Beta: 1.6231
Alpha: -59.32%
Correlation: 0.2967
R-Squared: 8.8%
Stock Volatility: 69.5%
Market Volatility: 12.7%

Analysis Details

Benchmark: SPY
Data Points: 251
Period: 252 trading days
Interpretation:
High volatility - stock moves more than market
Beta & Alpha Over Time
Notable investors who own ALT
6 of 37 tracked investors
InvestorValueShare of their portfolioRankQ/Q sharesSource
Viking Global Hedge fund
Andreas Halvorsen
$20.4M
0.06%
#84 of 90new13F
Millennium Management Hedge fund
Izzy Englander
$10.1M
0.01%
#1567 of 3716+1.6%13F
Citadel Hedge fund
Ken Griffin
$3.0M
0.00%
#2524 of 6285+119.1%13F
Point72 Hedge fund
Steve Cohen
$1.5M
0.00%
#1372 of 1945-26.8%13F
Renaissance Technologies Hedge fund
Jim Simons
$218K
0.00%
#2863 of 3138new13F
Rockefeller Capital Management Family office
Rockefeller family
$151K
0.00%
#2752 of 4729+7.3%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

ALT Institutional Ownership (13F)

Latest filings — 2026-09-30
Diluted shares outstanding: 126,324,197 (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.

222 filers159,865,949 shares$491.26M value126.55% of float
# Filer Shares Value % of Total % of Float Period
1 BlackRock, Inc. Custodian 20,385,284 $61.97M 12.61% 16.14% 2026-06-30
2 Deep Track Capital, LP 19,250,000 $58.52M 11.91% 15.24% 2026-06-30
3 State Street Corp 12,098,540 $36.78M 7.49% 9.58% 2026-06-30
4 Vanguard Group Inc Custodian 9,491,159 $34.26M 6.97% 7.51% 2025-12-31
5 TCG Crossover Management, LLC 10,000,000 $30.40M 6.19% 7.92% 2026-06-30
6 Vanguard Capital Management LLC 8,177,752 $24.86M 5.06% 6.47% 2026-06-30
7 Vanguard Portfolio Management LLC 7,330,265 $22.28M 4.54% 5.80% 2026-06-30
8 Marshall Wace, LLP Custodian 6,841,055 $20.80M 4.23% 5.42% 2026-06-30
9 VIKING GLOBAL INVESTORS LP 6,700,000 $20.37M 4.15% 5.30% 2026-06-30
10 RA CAPITAL MANAGEMENT, L.P. 6,500,000 $19.76M 4.02% 5.15% 2026-06-30
11 Geode Capital Management, LLC Custodian 5,011,314 $15.24M 3.10% 3.97% 2026-06-30
12 Woodline Partners LP 3,400,312 $10.34M 2.10% 2.69% 2026-06-30
13 Millennium Management LLC Custodian 3,309,122 $10.06M 2.05% 2.62% 2026-06-30
14 Trails Edge Capital Partners, LP 2,660,000 $8.09M 1.65% 2.11% 2026-06-30
15 Nuveen, LLC Custodian 2,405,354 $7.31M 1.49% 1.90% 2026-06-30
16 Two Sigma Investments, LP Custodian 2,381,142 $7.24M 1.47% 1.88% 2026-06-30
17 Goldman Sachs Group Inc Custodian 2,214,450 $6.73M 1.37% 1.75% 2026-06-30
18 GREAT POINT PARTNERS LLC 1,741,232 $5.29M 1.08% 1.38% 2026-06-30
19 Northern Trust Corp Custodian 1,599,226 $4.86M 0.99% 1.27% 2026-06-30
20 Weiss Asset Management LP 1,530,803 $4.65M 0.95% 1.21% 2026-06-30
21 Nantahala Capital Management, LLC 1,500,000 $4.56M 0.93% 1.19% 2026-06-30
22 Vanguard Fiduciary Trust Co 1,293,001 $3.93M 0.80% 1.02% 2026-06-30
23 Cormorant Asset Management, LP 1,250,000 $3.80M 0.77% 0.99% 2026-06-30
24 AQR Capital Management, LLC Custodian 1,220,949 $3.71M 0.76% 0.97% 2026-06-30
25 Citadel Advisors LLC Custodian 983,559 $2.99M 0.61% 0.78% 2026-06-30
11 filers$15.05M notional
# Filer Notional Value % of Total Period
1 Susquehanna International Group, LLP Custodian $5.47M 36.36% 2026-06-30
2 GROUP ONE TRADING LLC Custodian $3.53M 23.46% 2026-06-30
3 Citadel Advisors LLC Custodian $1.92M 12.75% 2026-06-30
4 Simplex Trading, LLC Custodian $1.42M 9.47% 2026-06-30
5 IMC-Chicago, LLC Custodian $1.20M 7.96% 2026-06-30
6 Jane Street Group, LLC Custodian $691.30K 4.59% 2026-06-30
7 Wolverine Trading, LLC Custodian $637.48K 4.24% 2025-09-30
8 DCF Advisers, LLC $112.48K 0.75% 2026-06-30
9 Walleye Capital LLC $41.04K 0.27% 2026-06-30
10 Advisory Services Network, LLC Custodian $13.68K 0.09% 2026-06-30
11 HUB Investment Partners, LLC $9.12K 0.06% 2026-06-30
7 filers$2.26M notional
# Filer Notional Value % of Total Period
1 Susquehanna International Group, LLP Custodian $990.13K 43.89% 2026-06-30
2 Citadel Advisors LLC Custodian $389.12K 17.25% 2026-06-30
3 GROUP ONE TRADING LLC Custodian $309.78K 13.73% 2026-06-30
4 Wolverine Trading, LLC Custodian $163.73K 7.26% 2025-09-30
5 Jane Street Group, LLC Custodian $150.18K 6.66% 2026-06-30
6 Simplex Trading, LLC Custodian $138.93K 6.16% 2026-06-30
7 IMC-Chicago, LLC Custodian $114.30K 5.07% 2026-06-30

ALT Insider Trading (Form 4)

Latest: 2026-10-05
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
2026-10-05 Christophe Arbet-Engels Chief Medical Officer Mixed +24,821 $2.76 -$35.0K EDGAR
2026-10-05 Gregory L Weaver Chief Financial Officer Mixed +10,096 $2.76 -$12.1K EDGAR
2026-10-02 Richard Thomas Menziuso Principal Accounting Officer Grant (A) +120,780 opt — EDGAR
2026-09-17 Linda M Richardson Chief Commercial Officer Mixed +17,174 $3.24 -$22.1K EDGAR
2026-08-13 Jerome Benedict Durso President and CEO Buy (P) +15,000 $2.95 $44.2K EDGAR
2026-08-03 Gregory L Weaver Chief Financial Officer Award (A) +1,753 $2.41 $4.2K EDGAR
2026-08-03 M Scot Roberts Chief Scientific Officer Award (A) +875 $2.41 $2.1K EDGAR
2026-05-01 Philip Hodges Director Grant (A) +48,800 opt — EDGAR
2026-05-01 Mitchel Sayare Director Grant (A) +48,800 opt — EDGAR
2026-05-01 Diane Jorkasky Director Grant (A) +48,800 opt — EDGAR
2026-05-01 Klaus Schafer Director Grant (A) +48,800 opt — EDGAR
2026-05-01 Catherine A. Sohn Director Grant (A) +48,800 opt — EDGAR
2026-05-01 Teri L Lawver Director Grant (A) +48,800 opt — EDGAR
2026-05-01 Wayne Pisano Director Grant (A) +48,800 opt — EDGAR
2026-05-01 John Gill Director Grant (A) +48,800 opt — 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.

ALT Insider Holdings

15 insiders · @ $2.23
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 Vipin K Garg President and CEO 429,225 $957.2K -$584.2K 57 2026-02-02
2 M Scot Roberts Chief Scientific Officer 113,714 $253.6K -$957.8K 32 2026-08-03
3 Matthew Scott Harris Chief Medical Officer 83,874 $187.0K -$223.6K 22 2025-08-04
4 Raymond M Jordt Chief Business Officer 70,107 $156.3K $0 14 2026-02-02
5 Jerome Benedict Durso President and CEO 62,500 $139.4K $213.7K 7 2026-08-13
6 Gregory L Weaver Chief Financial Officer 49,927 $111.3K $101.2K 9 2026-10-05
7 Christophe Arbet-Engels Chief Medical Officer 37,500 $83.6K $0 2 2026-10-05
8 Mitchel Sayare Director 27,451 $61.2K $10.0K 13 2026-05-01
9 Philip Hodges Director 26,579 $59.3K -$143.1K 13 2026-05-01
10 John Gill Director 21,700 $48.4K -$54.2K 16 2026-05-01
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.

ALT Board & Officers

As of SEC filings through Oct 5, 2026

Directors 9

Officers 6

Changes in the last 10 years (71)
Oct 1, 2026Richard Thomas Menziuso became Principal Accounting Officer
Mar 9, 2026Jerome Benedict Durso listed as President and CEO (previously CEO-elect) in SEC filings
Feb 2, 2026Vipin K Garg reported in an SEC filing no longer being a director
Feb 2, 2026Raymond M Jordt reported in an SEC filing no longer being Chief Business Officer
Dec 1, 2025The company announced the departure of Vipin K Garg as President and CEO in an SEC filing
Dec 1, 2025Jerome Benedict Durso first listed as CEO-elect in an SEC filing
Oct 1, 2025Christophe Arbet-Engels became Chief Medical Officer
Sep 16, 2025Linda M Richardson became Chief Commercial Officer
Feb 24, 2025The company announced the departure of Matthew Scott Harris from the board in an SEC filing
Feb 24, 2025The company announced the departure of Matthew Scott Harris as Chief Medical Officer in an SEC filing
Feb 24, 2025Teri L Lawver became a director
Feb 24, 2025Jerome Benedict Durso became a director
Nov 11, 2024Gregory L Weaver became Chief Financial Officer
Aug 13, 2024The company announced the departure of David Drutz from the board in an SEC filing
Jun 26, 2024Andrew Shutterly became Acting Chief Financial Officer
Jun 25, 2024The company announced the departure of Richard I Eisenstadt as Chief Financial Officer in an SEC filing
Mar 23, 2023Catherine A. Sohn became a director
Jan 3, 2023Raymond M Jordt became Chief Business Officer
Dec 31, 2021Richard I Eisenstadt became Chief Financial Officer
Dec 9, 2021The company announced the departure of William Michael Brown as Chief Financial Officer in an SEC filing
Not reported recently (16)
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.
ETF Holders
39 ETFs hold ALT
25 shown · $64.93M total exposure · 0.01% AUM-weighted avg weight
# ETF Provider Weight $ Exposure ETF AUM As Of
1 VTI Vanguard Morningstar Total Stock Market ETF Vanguard 0.00% $16.4M — 2026-09-30
2 IWM iShares Russell 2000 ETF iShares (BlackRock) 0.01% $11.2M $75.1B 2026-10-20
3 XBI State Street® SPDR® S&P® Biotech ETF SPDR (State Street) 0.10% $10.7M $10.4B 2026-10-20
4 VXF Vanguard Extended Market ETF Vanguard 0.01% $5.3M — 2026-09-30
5 IWN iShares Russell 2000 Value ETF iShares (BlackRock) 0.03% $4.1M $13.7B 2026-10-20
6 FESM Fidelity Enhanced Small Cap Core ETF Fidelity 0.05% $3.4M $6.6B 2026-10-20
7 IBB iShares Biotechnology ETF iShares (BlackRock) 0.03% $3.3M $11.0B 2026-10-20
8 VTWO Vanguard Russell 2000 ETF Vanguard 0.02% $3.2M — 2026-09-30
9 VHT Vanguard Health Care ETF Vanguard 0.01% $1.4M — 2026-09-30
10 IWC iShares Micro-Cap ETF iShares (BlackRock) 0.11% $1.3M $1.2B 2026-10-20
11 ITOT iShares Core S&P Total U.S. Stock Market ETF iShares (BlackRock) 0.00% $826,779 $97.4B 2026-10-20
12 PRFZ Invesco RAFI US 1500 Small-Mid ETF Nport 0.02% $522,188 — 2026-07-31
13 VTWV Vanguard Russell 2000 Value ETF Vanguard 0.04% $506,700 — 2026-09-30
14 DFMC Dimensional US Micro Cap ETF Dimensional 0.01% $484,596 — 2026-10-20
15 LABU Direxion Daily S&P Biotech Bull 3X ETF Direxion 0.07% $435,332 — 2026-10-21
16 SBIO ALPS Medical Breakthroughs ETF Nport 0.25% $408,932 — 2026-05-31
17 DFAS Dimensional US Small Cap ETF Dimensional 0.00% $385,692 — 2026-10-20
18 BBC Virtus Biotech Clinical Trials Etf Nport 0.73% $338,204 — 2026-07-31
19 RSSL Global X Russell 2000 ETF Global X 0.01% $205,978 — 2026-10-21
20 AVSC Avantis U.S. Small Cap Equity ETF Avantis 0.00% $123,285 $3.1B 2026-10-20
21 QQQS Invesco NASDAQ Future Gen 200 ETF Invesco 0.41% $85,450 — 2026-10-20
22 DFAC Dimensional US Core Equity 2 ETF Dimensional 0.00% $79,210 — 2026-10-20
23 DFUS Dimensional US Equity Market ETF Dimensional 0.00% $58,438 $21.4B 2026-10-20
24 IWV iShares Russell 3000 ETF iShares (BlackRock) 0.00% $54,480 $20.6B 2026-10-20
25 VTHR Vanguard Russell 3000 ETF Vanguard 0.00% $48,234 — 2026-09-30
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
$-0.77
TTM Revenue
$31.00K
TTM Net Income
$-92.06M
TTM Op. Cash Flow
$-76.51M
Quarterly figures (12 quarters)
QuarterPeriod EndRevenueNet IncomeDiluted EPSOp. Cash Flow
Q2 '262026-06-30$0.00$-22.82M$-0.12$-24.22M
Q1 '262026-03-31—$-22.86M$-0.18$-20.94M
Q4 '252025-12-31$26.00K$-27.36M$-0.26$-19.45M
Q3 '252025-09-30$5.00K$-19.01M$-0.21$-11.90M
Q2 '252025-06-30$5.00K$-22.15M$-0.27$-19.35M
Q1 '252025-03-31$5.00K$-19.61M$-0.26$-16.84M
Q4 '242024-12-31$5.00K$-23.18M$-0.33$-18.27M
Q3 '242024-09-30$5.00K$-22.84M$-0.32$-27.12M
Q2 '242024-06-30$5.00K$-24.64M$-0.35$-18.11M
Q1 '242024-03-31$5.00K$-24.39M$-0.34$-16.36M
Q4 '232023-12-31$37.00K$-31.64M$-0.56$-16.53M
Q3 '232023-09-30$362.00K$-20.67M$-0.39$-20.49M
Q2 2026 • period ending 2026-06-30 • filed 2026-08-12
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
0.59
P/S
9087.19
EV/EBITDA
—
EV/Sales
8175.39
ROE
-19.4%
ROA
-17.5%
Div Yield
0.00%
FCF Yield
-27.16%
Debt/Equity
0.07
Current Ratio
—
Market Cap
$281.70M
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
46.08M
SI % of Float
25.06%
Days to Cover
10.54
Short Vol Ratio
45.9%
Free Float
183.88M
Float %
94.5%
Short interest 2026-09-30 • Short volume 2026-10-21 • Float 2026-09-22