Abivax Sa-adr
$111.08-2.3%
+$2.0B
Net Activity
+25.58% total shares
Institutions Holding
308
Popularity Rank
#2052
Avg Weight
1.16%
Total Value
$8.7B
308 institutions currently hold ABVX, with 200 net buyers and 136 net sellers this quarter.
Institutional Moves (Q2 2026)
Majority Increased
Based on recent trading activity
Net Selling Institutions
136
Net Buying Institutions
200
Top 5 by Value
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Across its top 20 institutional holders, ABVX's holder base skews toward low-concentration, high-turnover investors on average (avg. concentration score 20/100, avg. turnover score 57/100).
ABVX ranks #2052 out of 37501 tracked stocks by institutional interest — one of the most closely watched names in our coverage.
ABVX is a disclosed holding of Ken Griffin (Citadel Advisors LLC), one of the tracked superinvestors on AlphaSMO — it makes up 0.1% of that fund's own 13F portfolio.
ABVX is a top-conviction position for TCG Crossover Management, LLC — at 19.2% of their entire disclosed 13F portfolio, it's one of their largest single bets, not just a passing allocation.
Ken Griffin has added to its ABVX position for two straight quarters, increasing it by $419.4M to reach $565.5M today.
Steve Cohen has trimmed its ABVX position for two straight quarters, cutting it by $380.9M while still holding $11.4M.
ABVX is down 2.3% today, but institutions show net buying of $2.0B this quarter — a divergence between today's price move and the underlying institutional flow.
ABVX reported a net loss of $336.1M in its latest fiscal year.
+$3.7B
Total Buy Value
$1.5B
Total Sell Value
200
Net Buyers
136
Net Sellers
ABVX
Q2 2026
Top 5 Institutional Movers
+$476.3M
+$416.4M
+$258.6M
-$258.4M
+$255.1M
ABVX does not currently have enough recent insider (Form 4) trading activity to compute a convergence signal against its 13F institutional flows.
13F data as of 2026-06-30 quarterly filings. Note: many large institutions file close to the 45-day post-quarter deadline, so early-quarter flow figures can shift substantially as more filings arrive.
No Form 144 planned sale filings in the last 90 days
2
Active 5%+ Holders
| Reporting Person | Type | Filing Date | % of Class |
|---|---|---|---|
| TCG Crossover GP I, LLC | 13G/A | 2026-08-14 | 7.0% |
| Invus Public Equities, L.P. | 13G/A | 2026-08-13 | 6.0% |
| Sofinnova Crossover I SLP | 13D/A | 2026-07-06 | 4.3% |
No Form 8-K filings for this ticker
00370M103
The most-added stocks by 13F institutions this quarter
Institutions Holding
6,242
Total reported value
$2.2T
3229 13F institutions increased their position this quarter
Institutions Holding
5,990
Total reported value
$3.6T
3033 13F institutions increased their position this quarter
Institutions Holding
6,153
Total reported value
$1.8T
2971 13F institutions increased their position this quarter
The most widely held stocks tracked across all 13F institutions
Institutions Holding
4,231
Total reported value
$346.4B
Held by 4231 institutions — one of the most-tracked stocks on AlphaSMO
Institutions Holding
4,125
Total reported value
$257.5B
Held by 4125 institutions — one of the most-tracked stocks on AlphaSMO
Institutions Holding
4,113
Total reported value
$649.2B
Held by 4113 institutions — one of the most-tracked stocks on AlphaSMO
Access ABVX's institutional ownership data programmatically:
REST API
curl https://alphasmo.com/api/v1/market/stock/ABVXCLI
npx alphasmo stocks get ABVX