Annexon
ANNX
152 hedge funds and large institutions have $575M invested in Annexon in 2024 Q4 according to their latest regulatory filings, with 29 funds opening new positions, 60 increasing their positions, 38 reducing their positions, and 18 closing their positions.
61% more first-time investments, than exits
New positions opened: 29 | Existing positions closed: 18
58% more repeat investments, than reductions
Existing positions increased: 60 | Existing positions reduced: 38
7% more funds holding
Funds holding: 142 → 152 (+10)
0.88% more ownership
Funds ownership: 104.35% → 105.23% (+0.88%)
0% more funds holding in top 10
Funds holding in top 10: 3 → 3 (0)
3% less call options, than puts
Call options by funds: $1.04M | Put options by funds: $1.08M
12% less capital invested
Capital invested by funds: $652M → $575M (-$77.1M)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Fidelity Investments
Boston,
Massachusetts
|
+$34.8M |
| 2 |
SFM
Sphera Funds Management
Tel Aviv,
Israel
|
+$7.65M |
| 3 |
EAM
Eventide Asset Management
Boston,
Massachusetts
|
+$6.26M |
| 4 |
SCM
Sio Capital Management
New York
|
+$5.75M |
| 5 |
BlackRock
New York
|
+$5.16M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
BCLSI
Bain Capital Life Sciences Investors
Boston,
Massachusetts
|
-$19.7M |
| 2 |
Adage Capital Partners
Boston,
Massachusetts
|
-$16.8M |
| 3 |
GC
GMT Capital
Atlanta,
Georgia
|
-$11.3M |
| 4 |
Acadian Asset Management
Boston,
Massachusetts
|
-$4.86M |
| 5 |
WP
Woodline Partners
San Francisco,
California
|
-$4.55M |
ANNX Hedge Fund Activity: Q4 2024 in Review
152 of the 7,606 institutional investors tracked by Wall St. Rank reported a position in Annexon (ANNX) for Q4 2024, worth a combined $575M — down 12% from $652M a quarter earlier.
Buyers outnumbered sellers: 29 funds opened new ANNX positions and 18 closed out — a net gain of 11 holders — while 60 added to existing stakes and 38 trimmed.
The largest buyer was Fidelity Investments, adding an estimated $34.8M. The largest seller was Bain Capital Life Sciences Investors, cutting an estimated $19.7M.
- 152 institutional investors held Annexon (ANNX) as of Q4 2024, up from 142 in Q3 2024.
- Funds reported $575M of Annexon stock for Q4 2024, down 12% quarter-over-quarter.
- 29 funds opened new Annexon positions in Q4 2024 and 18 closed out, a net change of +11 holders.
- The largest Annexon buyer in Q4 2024 was Fidelity Investments, an estimated $34.8M added.
- The largest Annexon seller in Q4 2024 was Bain Capital Life Sciences Investors, an estimated $19.7M sold.
Based on aggregated 13F filings for Q4 2024.