TSBX Turnstone Biologics Corp. Common Stock

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

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TSBX — —
Key stats
About
Industry (SIC)
BIOLOGICAL PRODUCTS, (NO DISGNOSTIC SUBSTANCES) (2836) · industry map
Exchange
XNAS
Market Cap
$0.0B
Employees
8
List Date
2023-07-21
CIK
0001764974
Headquarters
La Jolla, CA
Homepage
https://www.turnstonebio.com

Turnstone Biologics Corp is a clinical-stage biotechnology company focused on developing new medicines to treat and cure patients with solid tumors. The company is pioneering a differentiated approach to tumor-infiltrating lymphocytes, or TILs, a clinically validated technology for treating solid tumors. It is developing next-generation TIL therapies by selecting the potent and tumor-reactive T cells, which are referred to as Selected TILs. TILs are a type of cell therapy that harnesses the patient's own immune cells to target their own tumors. TIL therapy involves the isolation of lymphocytes…

Summary
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composite
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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
Insufficient price history — listed 1189 days ago. Seasonality patterns need at least one full year of data.
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: $0.36
SMA 50: $0.36
SMA 200: $0.41
Current: $0.35
EMA 12: $0.35
EMA 26: $0.36
MACD: -0.0013 | Signal: -0.0005
BEARISH
ADX (14): 10.70
RANGE
+DI: 13.44
−DI: 9.33

Momentum Oscillators

RSI (14): 49.25
NEUTRAL
Stoch %K: 39.19
Stoch %D: 38.86
Williams %R: -56.62

Volume & Volatility

BB Upper: $0.36
BB Lower: $0.35
NEUTRAL
OBV: 18,453,039
Vol SMA 20: 149,161
Vol ROC: 734.51%
ATR: $0.01
True Range: $0.01
HV 20: 18.1%
HV 30: 26.2%
HV 60: 51.0%

Data Summary

Data Points: 500
Last Updated:
Date Range: 2023-08-11T00:00:00 – 2025-08-08T00:00:00
AI Analysis

Click Frenzy-Pro™ for an AI analysis of this ticker.

Analysis includes technical indicators, news sentiment, risk assessment, and specific price levels to watch.

News
All TSBX news →
Showing 1–10 of 15
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TSBX Options Activity & IV Rank

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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.

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
ATM — / Wing —
30 DTE / 10d —
— pts EXTREME
ATM — / 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)
Straddle Price (30 DTE)
Beta Analysis
Insufficient price history — listed 1189 days ago. Beta and correlation vs SPY require ~1 year of daily returns to be statistically meaningful.

TSBX Institutional Ownership (13F)

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.

# Filer Shares Value % of Total % of Float Period
# Filer Notional Value % of Total Period
# Filer Notional Value % of Total Period

TSBX Insider Trading (Form 4)

Latest: 2025-08-12
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
2025-08-12 OrbiMed Capital GP VI LLC Director U −6,198,530 — EDGAR
2025-08-12 Versant Ventures V, LLC 10%+ Owner U −33,816,920 — EDGAR
2025-08-08 Rishi Gupta Director U −3,099,265 — EDGAR
2025-08-08 Davis Jerel Director U −3,381,692 — EDGAR
2024-07-02 Kanya Rajangam Director Grant (A) +12,770 opt — EDGAR
2024-07-02 William D. Waddill Director Grant (A) +12,770 opt — EDGAR
2024-07-02 Robert J Gould Director Grant (A) +12,770 opt — EDGAR
2024-07-02 Davis Jerel Director Grant (A) +12,770 opt — EDGAR
2024-07-02 Rishi Gupta Director Grant (A) +12,770 opt — EDGAR
2024-04-16 William D. Waddill Director Grant (A) +25,540 opt — EDGAR
2024-01-11 FMR LLC — — — EDGAR
2023-10-17 Venkat Ramanan Chief Financial Officer Grant (A) +46,606 opt — EDGAR
2023-10-17 Rishi Gupta Director Grant (A) +25,540 opt — EDGAR
2023-10-17 Peter Joseph Campisi Jr. Chief Legal Officer Grant (A) +44,377 opt — EDGAR
2023-10-17 Stewart Abbot Chief Scientific Officer Grant (A) +45,542 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.

TSBX Board & Officers

As of SEC filings through Aug 12, 2025
The company's insiders have not filed since Aug 12, 2025; this reflects that date.

Directors 5

Officers 6

10% owners 4

Changes in the last 10 years (49)
Aug 12, 2025Versant Ventures V, LLC reported in an SEC filing no longer being a 10% owner
Aug 12, 2025Versant Ventures V GP-GP (Canada), Inc. reported in an SEC filing no longer being a 10% owner
Aug 12, 2025Versant Ventures V (Canada), L.P. reported in an SEC filing no longer being a 10% owner
Aug 12, 2025Versant Venture Capital V, L.P. reported in an SEC filing no longer being a 10% owner
Aug 12, 2025Versant Venture Capital V (Canada), LP reported in an SEC filing no longer being a 10% owner
Aug 12, 2025Versant Vantage II, L.P. reported in an SEC filing no longer being a 10% owner
Aug 12, 2025Versant Vantage II GP-GP, LLC reported in an SEC filing no longer being a 10% owner
Aug 12, 2025Versant Vantage II GP, L.P. reported in an SEC filing no longer being a 10% owner
Aug 12, 2025Versant Ophthalmic Affiliates I, L.P. reported in an SEC filing no longer being a 10% owner
Aug 12, 2025Versant Affiliates Fund V, L.P. reported in an SEC filing no longer being a 10% owner
Aug 11, 2025The company announced the departure of William D. Waddill from the board in an SEC filing
Aug 11, 2025The company announced the departure of Robert J Gould from the board in an SEC filing
Aug 11, 2025The company announced the departure of Rishi Gupta from the board in an SEC filing
Aug 11, 2025The company announced the departure of Kanya Rajangam from the board in an SEC filing
Oct 9, 2024The company announced the departure of Venkat Ramanan as Chief Financial Officer in an SEC filing
Apr 15, 2024William D. Waddill became a director
Apr 12, 2024The company announced the departure of Patrick Machado from the board in an SEC filing
Jan 11, 2024Fmr LLC reported in an SEC filing no longer being a 10% owner
Jul 20, 2023Vijay Chiruvolu became Int. Chief Technology Officer
Jul 20, 2023Versant Ventures V, LLC became a 10% owner
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
# ETF Provider Weight $ Exposure ETF AUM As Of
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.