Stock Analysis
Data Source: SEC EDGAR 13F
Updated Hourly

Annexon Inc (ANNX)

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

Current Price
-- USD
Analyst Target
-- (0 analysts)
Upside
0.00%
Net Flow Q/Q
→ 0
Streak
1Q —
Buyers last Q
51%

Smart Money Signals — ANNX

Based on 214 hedge funds · latest filing: 2026 Q2 · updated quarterly

➡️

No change last quarter

last 6Q
The number of hedge funds holding this stock didn't change last quarter. Neither a buying nor selling signal on its own — watch the next quarter for direction.
🏔️

At the ownership peak (100% of max)

100% of all-time peak
214 hedge funds hold ANNX right now — the highest count in 3.0 years. When ownership is this concentrated, any bad news can trigger a chain reaction: one big fund sells, others follow. This is a classic 'crowded trade' — high popularity doesn't equal safety.
🚀

Fast accumulation — +69% more funds vs a year ago

fund count last 6Q
+87 new funds entered over the past year (+69% YoY). That's a rapid rush of institutional money. Fast accumulation often signals a major thesis — but it also means the stock could fall quickly if that thesis breaks.
🟡

Slight buying edge — 51% buying

116 buying111 selling
Last quarter: 116 funds bought or added vs 111 that reduced or exited. It's nearly a 50/50 split — some institutions are convinced, others are taking profits. This mixed picture is normal near price highs.
⚠️

Fewer new buyers each quarter (-35 vs last Q)

new funds entering per quarter
Funds opening this position for the first time: 36 → 40 → 66 → 31. Each quarter fewer new institutions are entering. This usually means most funds that wanted in are already in — the stock is well-known but the pool of potential new buyers is shrinking.
🔒

42% of holders stayed for 2+ years

■ 42% conviction (2yr+) ■ 28% medium ■ 30% new
89 out of 214 hedge funds have held ANNX 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 +34% but shares only +15% — price-driven

Value
+34%
Shares
+15%
Last quarter: the total dollar value of institutional holdings rose +34%, but actual share count only changed +15%. 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.
📈

Growing discovery — still being found

17 → 36 → 40 → 66 → 31 new funds/Q
New funds entering each quarter: 36 → 40 → 66 → 31. A growing number of institutions are discovering ANNX each quarter. The narrative is still spreading — leaving room for ongoing capital accumulation.
🏛️

Veteran-anchored — 50% veterans vs 32% newcomers

■ 50% veterans ■ 18% 1-2yr ■ 32% new
Entry-cohort mix of 223 holders: 111 (50%) are 2+ year veterans, 40 entered 1–2 years ago, and 72 (32%) joined within the past year. A veteran-weighted cap table skews toward institutional memory over fresh momentum.
🏆

Elite ownership — 50% AUM from top-100 funds

50% from top-100 AUM funds
46 of 213 holders are among the 100 largest funds by AUM, controlling 50% of total institutional value in ANNX. When the biggest players dominate the cap table, it signifies deep institutional support — since mega-funds deploy the most rigorous due diligence and capital.
4.7
out of 10
Moderate Exit Risk
Exit risk score 4.7/10 — some crowding factors present, but no critical concentration. Watch ownership trend over the next 1–2 quarters for direction.

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 — ANNX

In 2026 Q2, 116 hedge funds were net buyers of ANNX (31 opened a new position, 85 added to an existing one), while 111 reduced or exited (80 trimmed, 31 sold completely) — a 51% buyer ratio, indicating a slight buying edge. 50% of total institutional value in ANNX is held by top-100 AUM funds, reflecting elite-tier ownership quality. Net fund flow last quarter: flat (entries and exits balanced). Total institutional holders: 214.

Hedge Fund Ownership: ANNX

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

Market Analysis: ANNX

Analyst Price Targets

Avg. Price Target
--

Analyst Recommendations

Stock Performance

Real-time

Company Profile: ANNX

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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.

14 top-rated funds 3 high-conviction
Consensus
5.1
/ 10
breadth
×
Elite
3.2
/ 10
conviction
Hedge Fund Positioning: ANNX
210 + Investors

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

Metric All 13F Filers (2026 Q2) Prior (2026 Q1) Change
Funds Holding 210 214 -1.87%
13F Shares 179M 157M 14.42%
Total Value $1.02B $860M 18.36%
New Positions 30 66 -36
Increased Positions 80 85 -5
Closed Positions 33 16 +17
Reduced Positions 76 48 +28
Total Calls 7 6 16.67%
Total Puts 3 2 50.0%
PUT/CALL Ratio 0.43 0.33 Bullish

Statistics: ANNX

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Financial Highlights

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Institutional Holders (2026 Q2)

210 + investors

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

QUARTER:
Top 25 ANNX holders by conviction (% of portfolio weight) — 2026 Q2 · Source: SEC Form 13F
# Investor % of Portfolio Shares Mkt Value
1 Mak Capital One LLC 4.69% 5,862,180 $33.5M
2 Redmile Group, LLC 4.55% 11,869,877 $67.8M
3 Great Point Partners LLC 3.78% 3,500,000 $20.0M
4 Ishara Investments LP 3.44% 820,000 $4.7M
5 Palo Alto Investors LP 2.33% 2,948,090 $16.8M
6 Bain Capital Life Sciences Investors, LLC 1.51% 4,437,731 $25.3M
7 Bvf Inc/Il 1.27% 8,698,173 $49.7M
8 MPM BioImpact LLC 1.23% 3,544,354 $20.2M
9 Tetragon Partners GP Ltd 1.12% 1,242,455 $7.1M
10 Opaleye Management Inc. 0.89% 1,714,451 $9.8M
11 Board of Trustees of The Leland Stanford Junior University 0.52% 482,550 $2.8M
12 Siren, L.L.C. 0.52% 4,458,646 $25.5M
13 Bellevue Group AG 0.49% 4,100,016 $23.4M
14 Sirios Capital Management L P 0.40% 569,276 $3.3M
15 Parkman Healthcare Partners LLC 0.37% 641,029 $3.7M
16 Logos Global Management LP 0.37% 1,500,000 $8.6M
17 DAFNA Capital Management LLC 0.32% 297,812 $1.7M
18 Ikarian Capital, LLC 0.26% 430,244 $2.5M
19 Diadema Partners LP 0.25% 353,200 $2.0M
20 Verdad Advisers, LP 0.14% 25,300 $144K
21 Woodline Partners LP 0.12% 6,925,067 $39.5M
22 AlphaCentric Advisors LLC 0.12% 24,872 $142K
23 Virtus Investment Advisers, LLC 0.09% 69,468 $397K
24 Kennedy Capital Management LLC 0.09% 898,394 $5.1M
25 Forefront Analytics, LLC 0.09% 14,240 $81K
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 — Annexon Inc (ANNX)

What does the Smart Money Trend signal show for ANNX?

No change last quarter: The number of hedge funds holding this stock didn't change last quarter. Neither a buying nor selling signal on its own — watch the next quarter for direction.

What is the institutional breadth score for ANNX?

Slight buying edge — 51% buying: Last quarter: 116 funds bought or added vs 111 that reduced or exited. It's nearly a 50/50 split — some institutions are convinced, others are taking profits. This mixed picture is normal near price highs.

What is the fund quality score for ANNX holders?

Elite ownership — 50% AUM from top-100 funds: 46 of 213 holders are among the 100 largest funds by AUM, controlling 50% of total institutional value in ANNX. When the biggest players dominate the cap table, it signifies deep institutional support — since mega-funds deploy the most rigorous due diligence and capital.

How long have hedge funds held ANNX?

42% of holders stayed for 2+ years: 89 out of 214 hedge funds have held ANNX 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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