ACELYRIN
SLRN
SLRN was delisted on the 21st of May, 2025.
125 hedge funds and large institutions have $276M invested in ACELYRIN in 2024 Q4 according to their latest regulatory filings, with 18 funds opening new positions, 44 increasing their positions, 40 reducing their positions, and 14 closing their positions.
450% more call options, than puts
Call options by funds: $22K | Put options by funds: $4K
29% more first-time investments, than exits
New positions opened: 18 | Existing positions closed: 14
10% more repeat investments, than reductions
Existing positions increased: 44 | Existing positions reduced: 40
2% more funds holding
Funds holding: 122 → 125 (+3)
0.28% more ownership
Funds ownership: 87.41% → 87.69% (+0.28%)
33% less funds holding in top 10
Funds holding in top 10: 3 → 2 (-1)
36% less capital invested
Capital invested by funds: $430M → $276M (-$154M)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
T. Rowe Price Investment Management
Baltimore,
Maryland
|
+$11.8M |
| 2 |
Alyeska Investment Group
Chicago,
Illinois
|
+$7.34M |
| 3 |
Morgan Stanley
New York
|
+$2.6M |
| 4 |
ACM
ADAR1 Capital Management
Austin,
Texas
|
+$1.9M |
| 5 |
SC
Stempoint Capital
New York
|
+$1.87M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Citadel Advisors
Miami,
Florida
|
-$11.2M |
| 2 |
Millennium Management
New York
|
-$3.74M |
| 3 |
Jacobs Levy Equity Management
Florham Park,
New Jersey
|
-$3.21M |
| 4 |
DCM
DAFNA Capital Management
Los Angeles,
California
|
-$2.49M |
| 5 |
ACP
Acuta Capital Partners
Redwood City,
California
|
-$1.79M |
SLRN Hedge Fund Activity: Q4 2024 in Review
125 of the 7,607 institutional investors tracked by Wall St. Rank reported a position in ACELYRIN (SLRN) for Q4 2024, worth a combined $276M — down 36% from $430M a quarter earlier.
Buyers outnumbered sellers: 18 funds opened new SLRN positions and 14 closed out — a net gain of 4 holders — while 44 added to existing stakes and 40 trimmed.
The largest buyer was T. Rowe Price Investment Management, adding an estimated $11.8M. The largest seller was Citadel Advisors, cutting an estimated $11.2M.
- 125 institutional investors held ACELYRIN (SLRN) as of Q4 2024, up from 122 in Q3 2024.
- Funds reported $276M of ACELYRIN stock for Q4 2024, down 36% quarter-over-quarter.
- 18 funds opened new ACELYRIN positions in Q4 2024 and 14 closed out, a net change of +4 holders.
- The largest ACELYRIN buyer in Q4 2024 was T. Rowe Price Investment Management, an estimated $11.8M added.
- The largest ACELYRIN seller in Q4 2024 was Citadel Advisors, an estimated $11.2M sold.
Based on aggregated 13F filings for Q4 2024.