Stock Analysis
Data Source: SEC EDGAR 13F
Updated Hourly

Sutro Biopharma Inc (STRO)

100 + Investors. Track Smart Money conviction in STRO. See who's accumulating, reducing, or initiating positions.

Current Price
-- USD
Analyst Target
-- (0 analysts)
Upside
0.00%
Net Flow Q/Q
↑ +23
Streak
2Q ▲
Buyers last Q
65%

Smart Money Signals — STRO

Based on 100 hedge funds · latest filing: 2026 Q2 · updated quarterly

📈

Buying streak — 2 quarters in a row

last 6Q
For 2 consecutive quarters, more hedge funds added STRO than sold it. That's a consistent pattern of professional buying — not a one-time trade. When institutions keep buying quarter after quarter, it usually means they see a multi-year opportunity, not just a short-term momentum flip.
📊

High ownership — 77% of 3.0Y peak

77% of all-time peak
100 funds currently hold this stock — 77% of the 3.0-year high of 130 funds (reached 2024 Q3). Ownership is elevated but not yet at maximum concentration. Room to grow, but watch if the trend reverses.
〰️

Stable — ownership unchanged year-over-year

fund count last 6Q
The number of hedge funds holding STRO is almost the same as a year ago (+0 funds, +0% change). No significant rush to buy or sell — institutional backing is holding steady.
🟢

More buyers than sellers — 65% buying

65 buying35 selling
Last quarter: 65 funds were net buyers (41 opened a brand new position + 24 added to an existing one). Only 35 were sellers (17 trimmed + 18 sold completely). A clear majority buying is a strong confirmation signal.
📈

More new buyers each quarter (+15 vs last Q)

new funds entering per quarter
Funds opening a new STRO position: 9 → 11 → 26 → 41. A growing influx of new institutional buyers means the asset is still gathering momentum — the consensus hasn't fully saturated yet.
🔒

58% of holders stayed for 2+ years

■ 58% conviction (2yr+) ■ 14% medium ■ 28% new
58 out of 100 hedge funds have held STRO for over 2 years without selling. Long-term investors are generally harder to shake out during market stress, creating a stable ownership base that limits the risk of sudden capitulation.
💰

Value +52% but shares only +14% — price-driven

Value
+51%
Shares
+14%
Last quarter: the total dollar value of institutional holdings rose +52%, but actual share count only changed +14%. The gap is explained by the stock's price rising — not new buying. Strong value growth with weak share growth means the rally is price momentum, not fresh institutional demand.
🚀

Acceleration phase — new buyers rushing in

30 → 9 → 11 → 26 → 41 new funds/Q
New funds entering each quarter: 9 → 11 → 26 → 41. The pace of institutional discovery is accelerating sharply. This is the 'hot idea' phase — the thesis is being passed from fund to fund. You are not late — the accumulation wave is still building.
🏛️

Veteran-anchored — 68% veterans vs 21% newcomers

■ 68% veterans ■ 12% 1-2yr ■ 21% new
Entry-cohort mix of 102 holders: 69 (68%) are 2+ year veterans, 12 entered 1–2 years ago, and 21 (21%) joined within the past year. A veteran-weighted cap table skews toward institutional memory over fresh momentum.
✅

Strong quality — 24% AUM from major funds

24% from top-100 AUM funds
32 of 100 holders rank in the top 100 by AUM, accounting for 24% of total institutional value held. A meaningful share of the ownership value comes from the most well-resourced institutions.
2.7
out of 10
Low Exit Risk
Exit risk score 2.7/10 — low institutional crowding. Ownership is below peak levels, holder base is relatively sticky, and buying momentum is positive.

Methodology note: these Smart Money cards use consecutive 13F disclosure snapshots, not trade-by-trade execution data. "Buying", "selling", "new holders", and "trimmed" refer to quarter-over-quarter changes in reported holders, aggregate shares, or disclosed position values between filings. They are useful for ownership regime analysis and crowding, but they do not imply exact trade timing on the filing date.

Institutional Sentiment Summary — STRO

In 2026 Q2, 65 hedge funds were net buyers of STRO (41 opened a new position, 24 added to an existing one), while 35 reduced or exited (17 trimmed, 18 sold completely) — a 65% buyer ratio, indicating clear institutional accumulation. Net buying has persisted for two consecutive quarters, a positive momentum signal. 24% of total institutional value in STRO is held by top-100 AUM funds, reflecting strong institutional quality. Net fund flow last quarter: +23 funds (more new holders than closures). Total institutional holders: 100.

Hedge Fund Ownership: STRO

How many hedge funds hold STRO — quarterly history vs. share price
Quarterly hedge fund ownership of STRO vs. share price

Market Analysis: STRO

Analyst Price Targets

Avg. Price Target
--

Analyst Recommendations

Stock Performance

Real-time

Company Profile: STRO

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Institutional ownership data sourced from SEC EDGAR Form 13F-HR filings.

Loading signal freshness…
Smart Money Signal ?
Limited Smart Money Interest

No strong consensus or elite conviction detected among institutional holders.

8 top-rated funds 5 high-conviction
Consensus
4.1
/ 10
breadth
×
Elite
3.7
/ 10
conviction
Hedge Fund Positioning: STRO
100 + Investors

Track Smart Money conviction in STRO. See who's accumulating, reducing, or initiating positions.

Metric All 13F Filers (2026 Q2) Prior (2026 Q1) Change
Funds Holding 100 77 29.87%
13F Shares 17M 14M 14.23%
Total Value $533M $351M 51.94%
New Positions 41 26 +15
Increased Positions 23 23 -
Closed Positions 18 8 +10
Reduced Positions 17 12 +5
Total Calls 1 0 100%
Total Puts 1 2 -50.0%
PUT/CALL Ratio 1.0 0.0 Neutral

Statistics: STRO

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Financial Highlights

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Institutional Holders (2026 Q2)

100 + investors

Explore institutional interest and hedge fund ownership dynamics. Analyze portfolio weights, new positions, and conviction trends in STRO. Verified SEC 13F-HR filings.

QUARTER:
Top 25 STRO holders by conviction (% of portfolio weight) — 2026 Q2 · Source: SEC Form 13F
# Investor % of Portfolio Shares Mkt Value
1 Velan Capital Investment Management LP 10.36% 512,160 $17.0M
2 Acuta Capital Partners, LLC 6.25% 270,251 $9.0M
3 KVP Capital Advisors, LP 5.52% 226,575 $7.5M
4 Samsara BioCapital, LLC 2.90% 1,062,872 $35.3M
5 Affinity Asset Advisors, LLC 1.76% 1,172,487 $38.9M
6 Merck & Co., Inc. 1.72% 272,351 $9.0M
7 Kynam Capital Management, LP 1.60% 872,558 $29.0M
8 AJU IB Investment Co., Ltd. 1.43% 17,500 $436K
9 Bvf Inc/Il 1.06% 1,251,788 $41.6M
10 Perceptive Advisors LLC 0.65% 1,304,846 $43.3M
11 Seven Fleet Capital Management LP 0.63% 159,118 $3.8M
12 ADAR1 Capital Management, LLC 0.61% 404,014 $13.4M
13 Orbimed Advisors LLC 0.46% 743,944 $24.7M
14 Elmind Capital, LP 0.27% 32,037 $1.1M
15 Eventide Asset Management, LLC 0.26% 585,262 $19.4M
16 Verdad Advisers, LP 0.20% 6,400 $212K
17 Persistent Asset Partners Ltd 0.07% 6,569 $218K
18 Integrated Quantitative Investments LLC 0.05% 8,939 $297K
19 Informed Momentum Co LLC 0.05% 16,232 $539K
20 Woodline Partners LP 0.05% 458,029 $15.2M
21 Sigma Planning Corp 0.04% 45,020 $1.5M
22 Y-Intercept (Hong Kong) Ltd 0.04% 55,879 $1.9M
23 Balyasny Asset Management L.P. 0.03% 711,162 $23.6M
24 XTX Topco Ltd 0.02% 52,169 $1.7M
25 RBF Capital, LLC 0.02% 15,272 $507K
Investor Ownership
History 		% of Portfolio Prev % Rank Conviction Avg Buy Price 13F Score™ 3Y / 7Y Sell Timing Shares Mkt Value Change Change % Source Quarter Filed

Frequently Asked Questions — Sutro Biopharma Inc (STRO)

What does the Smart Money Trend signal show for STRO?

Buying streak — 2 quarters in a row: For 2 consecutive quarters, more hedge funds added STRO than sold it. That's a consistent pattern of professional buying — not a one-time trade. When institutions keep buying quarter after quarter, it usually means they see a multi-year opportunity, not just a short-term momentum flip.

What is the institutional breadth score for STRO?

More buyers than sellers — 65% buying: Last quarter: 65 funds were net buyers (41 opened a brand new position + 24 added to an existing one). Only 35 were sellers (17 trimmed + 18 sold completely). A clear majority buying is a strong confirmation signal.

What is the fund quality score for STRO holders?

Strong quality — 24% AUM from major funds: 32 of 100 holders rank in the top 100 by AUM, accounting for 24% of total institutional value held. A meaningful share of the ownership value comes from the most well-resourced institutions.

How long have hedge funds held STRO?

58% of holders stayed for 2+ years: 58 out of 100 hedge funds have held STRO for over 2 years without selling. Long-term investors are generally harder to shake out during market stress, creating a stable ownership base that limits the risk of sudden capitulation.

Where does this institutional ownership data come from?

All holdings data is sourced from SEC Form 13F filings, which institutional investment managers with over $100 million in assets are required to submit quarterly. Data is parsed directly from SEC EDGAR.

Disclaimer: The information on this page is for informational purposes only and does not constitute investment advice, a recommendation, or an offer to buy or sell any security. Institutional holdings data is sourced from SEC Form 13F filings and reflects positions as of the filing date. Past performance of any fund or portfolio is not indicative of future results. 13Foresight is not a registered investment adviser. Always conduct your own due diligence before making investment decisions.

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