Stock Analysis
Data Source: SEC EDGAR 13F
Updated Hourly

Abivax SA (ABVX)

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

Current Price
-- USD
Analyst Target
-- (0 analysts)
Upside
0.00%
Net Flow Q/Q
↑ +6
Streak
3Q ▲
Buyers last Q
58%

Smart Money Signals — ABVX

Based on 250 hedge funds · latest filing: 2026 Q1 · updated quarterly

📈

Buying streak — 3 quarters in a row

last 6Q
For 3 consecutive quarters, more hedge funds added ABVX 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.
🏔️

At the ownership peak (100% of max)

100% of all-time peak
250 hedge funds hold ABVX 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 — +456% more funds vs a year ago

fund count last 6Q
+205 new funds entered over the past year (+456% 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 — 58% buying

172 buying127 selling
Last quarter: 172 funds bought or added vs 127 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 (-52 vs last Q)

new funds entering per quarter
Funds opening this position for the first time: 7 → 131 → 104 → 52. 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.
🔄

Mostly new holders — 75% entered in last year

■ 10% conviction (2yr+) ■ 16% medium ■ 75% new
Only 24 funds (10%) have held >2 years. The majority of current holders are relatively new to the position. New holders tend to sell faster when prices drop — a shallow conviction base that could amplify any sell-off.
💎

Buying through price weakness — shares -13%, value -38%

Value
-37%
Shares
-13%
Last quarter: funds added -13% more shares while total portfolio value only changed -38%. Institutions were buying while the price was falling — a high-conviction accumulation signal. They're deliberately loading up on the dip.
📈

Growing discovery — still being found

7 → 7 → 131 → 104 → 52 new funds/Q
New funds entering each quarter: 7 → 131 → 104 → 52. A growing number of institutions are discovering ABVX each quarter. The narrative is still spreading — leaving room for ongoing capital accumulation.
🌱

Early stage — 81% of holders entered in last year

■ 11% veterans ■ 8% 1-2yr ■ 81% new
Of 282 current holders: 228 (81%) entered in the past year, only 31 (11%) are 2+ year veterans. This is an early-phase institutional idea — still being discovered. High upside potential if the thesis plays out, but thin conviction base.
✅

Strong quality — 27% AUM from major funds

27% from top-100 AUM funds
35 of 250 holders rank in the top 100 by AUM, accounting for 27% of total institutional value held. A meaningful share of the ownership value comes from the most well-resourced institutions.
6.9
out of 10
Moderate Exit Risk
Exit risk score 6.9/10 — 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 — ABVX

In 2026 Q1, 172 hedge funds were net buyers of ABVX (52 opened a new position, 120 added to an existing one), while 127 reduced or exited (81 trimmed, 46 sold completely) — a 58% buyer ratio, indicating a slight buying edge. This marks 3 consecutive quarters of net institutional buying — a persistent conviction signal. 27% of total institutional value in ABVX is held by top-100 AUM funds, reflecting strong institutional quality. Net fund flow last quarter: +6 funds (more new holders than closures). Total institutional holders: 250.

Hedge Fund Ownership: ABVX

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

Market Analysis: ABVX

Analyst Price Targets

Avg. Price Target
--

Analyst Recommendations

Stock Performance

Real-time

Company Profile: ABVX

-- --

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

Is It Too Late to Buy Abivax SA (ABVX) Based on Hedge Fund 13F Filings?

Signal Freshness measures how much ABVX has moved relative to its sector benchmark (XLV) since the 2026 Q1 13F filing. A stock that has barely outrun its sector is still a relatively fresh entry point — the fund's thesis has not yet been priced in by the broader market.

Since Quarter End March 31, 2026 · 81d ago
ABVX
-11.0%
XLV
+2.1%

ABVX outperformed XLV by -13.1% since March 31, 2026.

Since 13F Filing Date May 15, 2026 · 36d ago
ABVX
-13.4%
XLV
+3.2%

Since the filing became public, ABVX outperformed XLV by -16.6% .

Interpretation: The stock is tracking its sector benchmark closely. The signal remains fresh and the entry point is still near the fund's implied reference. Learn more →

Smart Money Signal ?
Growing Institutional Interest

Quality funds are building positions — conviction is rising but not yet widespread.

21 top-rated funds 20 high-conviction
Consensus
5.8
/ 10
breadth
×
Elite
7.2
/ 10
conviction
Hedge Fund Positioning: ABVX
250 + Investors

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

Metric All 13F Filers (2026 Q1) Prior (2025 Q4) Change
Funds Holding 250 244 2.46%
13F Shares 52M 60M -13.05%
Total Value $5.60B $8.99B -37.69%
New Positions 52 104 -52
Increased Positions 112 78 +34
Closed Positions 46 27 +19
Reduced Positions 73 48 +25
Total Calls 21 17 23.53%
Total Puts 11 10 10.0%
PUT/CALL Ratio 0.52 0.59 Bullish

Statistics: ABVX

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Valuation Measures Data as of: --

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Beta (5Y Monthly) --
Short Ratio (Days to Cover) --
Short % of Float --

Financial Highlights

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Institutional Holders (2026 Q1)

250 + investors

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

QUARTER:
Top 25 ABVX holders by conviction (% of portfolio weight) — 2026 Q1 · Source: SEC Form 13F
# Investor % of Portfolio Shares Mkt Value
1 TCG Crossover Management, LLC 20.65% 6,481,085 $721.7M
2 Artia Global Partners LP 13.39% 600,747 $66.9M
3 Saturn V Capital Management LP 10.94% 542,696 $60.4M
4 Caligan Partners LP 10.83% 1,461,924 $162.8M
5 Brummer Multi-Strategy AB 10.40% 22,428 $2.5M
6 Darwin Global Management, Ltd. 9.34% 3,468,657 $352.1M
7 ADAR1 Capital Management, LLC 9.14% 1,394,019 $155.2M
8 Kite Lake Capital Management (UK) LLP 8.93% 100,000 $11.1M
9 Octagon Capital Advisors LP 8.34% 677,000 $75.4M
10 Nationale-Nederlanden Powszechne Towarzystwo Emerytalne S.A. 7.23% 765,915 $85.3M
11 Stempoint Capital LP 6.79% 313,791 $34.9M
12 Act Capital Management, LLC 6.20% 70,900 $7.9M
13 First Turn Management, LLC 5.80% 465,869 $51.9M
14 Eversept Partners, LP 5.49% 934,423 $104.0M
15 Velan Capital Investment Management LP 5.37% 77,000 $8.6M
16 Squadron Capital Management LLC 5.30% 130,000 $14.5M
17 Andera Partners 4.92% 78,125 $8.7M
18 Vestal Point Capital, LP 4.67% 1,500,000 $167.0M
19 Helikon Investments Ltd 4.26% 1,013,324 $112.8M
20 Cormorant Asset Management, LP 4.25% 760,000 $84.6M
21 Creek Drive Management Group LLC 3.93% 155,000 $17.3M
22 Logos Global Management LP 3.75% 675,000 $75.2M
23 HighVista Strategies LLC 3.48% 113,254 $12.6M
24 Silverarc Capital Management, LLC 3.44% 302,530 $33.7M
25 Findell Capital Management LLC 3.42% 105,000 $11.7M
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 — Abivax SA (ABVX)

What does the Smart Money Trend signal show for ABVX?

Buying streak — 3 quarters in a row: For 3 consecutive quarters, more hedge funds added ABVX 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 ABVX?

Slight buying edge — 58% buying: Last quarter: 172 funds bought or added vs 127 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 ABVX holders?

Strong quality — 27% AUM from major funds: 35 of 250 holders rank in the top 100 by AUM, accounting for 27% 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 ABVX?

Mostly new holders — 75% entered in last year: Only 24 funds (10%) have held >2 years. The majority of current holders are relatively new to the position. New holders tend to sell faster when prices drop — a shallow conviction base that could amplify any sell-off.

Is it too late to buy Abivax SA (ABVX) following the 2026 Q1 hedge fund 13F filings?

As of today, ABVX has moved -13.4% since the 2026 Q1 13F filing date (May 15, 2026), compared to +3.2% for the XLV sector ETF — an outperformance of -16.6%. Since the quarter end (March 31, 2026), ABVX has gained -11.0% vs +2.1% for XLV. The stock is tracking its sector benchmark closely. The signal remains fresh and the entry point is still near the fund's implied reference.

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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