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SLRN

ACELYRIN
SLRN

Delisted

SLRN was delisted on the 21st of May, 2025.

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2 hedge funds and large institutions have $704 invested in ACELYRIN in 2025 Q2 according to their latest regulatory filings, with 2 funds opening new positions, 0 increasing their positions, 0 reducing their positions, and 105 closing their positions.

New
Increased
Maintained
Reduced
Closed

73.41% less ownership

Funds ownership: 73.41% → 0% (-73%)

98% less funds holding

Funds holding: 105 → 2 (-103)

98% less first-time investments, than exits

New positions opened: 2 | Existing positions closed: 105

100% less funds holding in top 10

Funds holding in top 10: 4 → 0 (-4)

100% less capital invested

Capital invested by funds: $183M → $704 (-$183M)

Holders
2
Holders Change
-103
Holders Change %
-98.1%
% of All Funds
0.03%
Holding in Top 10
–
Holding in Top 10 Change
-4
Holding in Top 10 Change %
-100%
% of All Funds
–
New
2
Increased
–
Reduced
–
Closed
105
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

Rank Fund Capital Flow
1
Osaic Holdings
Osaic Holdings
Arizona
+$654
2
IA
IFP Advisors
Florida
+$7

Top Sellers

Rank Fund Capital Flow
1
TCM
Tang Capital Management
California
-$24.3M
2
ACMC
AyurMaya Capital Management Company
New Hampshire
-$23.1M
3
BlackRock
BlackRock
New York
-$14.3M
4
T. Rowe Price Investment Management
T. Rowe Price Investment Management
Maryland
-$11.5M
5
MAP
Madison Avenue Partners
New York
-$10.2M
Name Holding Trade Value Shares
Change 		Change in
Stake
TL
26
TowerView LLC
New York
– -$1.33M -540,000 Closed
Goldman Sachs
27
Goldman Sachs
New York
– -$868K -351,407 Closed
Morgan Stanley
28
Morgan Stanley
New York
– -$681K -275,815 Closed
SFI
29
Susquehanna Fundamental Investments
Pennsylvania
– -$675K -273,412 Closed
N
30
Nuveen
North Carolina
– -$500K -202,239 Closed
AQR Capital Management
31
AQR Capital Management
Connecticut
– -$478K -193,323 Closed
Wellington Management Group
32
Wellington Management Group
Massachusetts
– -$443K -179,150 Closed
Citadel Advisors
33
Citadel Advisors
Florida
– -$436K -176,437 Closed
Bank of New York Mellon
34
Bank of New York Mellon
New York
– -$428K -173,277 Closed
SCM
35
Stonepine Capital Management
Oregon
– -$414K -167,580 Closed
Millennium Management
36
Millennium Management
New York
– -$369K -149,298 Closed
BCM
37
Bridgeway Capital Management
Texas
– -$348K -140,900 Closed
MAM
38
Monaco Asset Management
Monaco
– -$345K -139,600 Closed
William Blair & Company
39
William Blair & Company
Illinois
– -$342K -138,595 Closed
Franklin Resources
40
Franklin Resources
California
– -$314K -127,023 Closed
Los Angeles Capital Management
41
Los Angeles Capital Management
California
– -$271K -109,612 Closed
UBS Group
42
UBS Group
Switzerland
– -$256K -103,525 Closed
XT
43
XTX Topco
Cayman Islands
– -$255K -103,047 Closed
RhumbLine Advisers
44
RhumbLine Advisers
Massachusetts
– -$252K -102,174 Closed
American Century Companies
45
American Century Companies
Missouri
– -$226K -91,390 Closed
Susquehanna International Group
46
Susquehanna International Group
Pennsylvania
– -$224K -90,669 Closed
Invesco
47
Invesco
Georgia
– -$211K -85,520 Closed
Barclays
48
Barclays
United Kingdom
– -$205K -82,871 Closed
AA
49
ALPS Advisors
Colorado
– -$184K -74,640 Closed
AllianceBernstein
50
AllianceBernstein
Tennessee
– -$182K -73,670 Closed
1
2
3 4 5

SLRN Hedge Fund Activity: Q2 2025 in Review

2 of the 7,595 institutional investors tracked by Wall St. Rank reported a position in ACELYRIN (SLRN) for Q2 2025, worth a combined $704 — down 100% from $183M a quarter earlier.

Sellers outnumbered buyers: 105 funds closed out of SLRN and 2 opened new positions — a net loss of 103 holders — while 0 trimmed existing stakes and 0 added.

The largest buyer was Osaic Holdings, opening a new position worth an estimated $654. The largest seller was Tang Capital Management, exiting entirely with an estimated $24.3M sold.

  • 2 institutional investors held ACELYRIN (SLRN) as of Q2 2025, down from 105 in Q1 2025.
  • Funds reported $704 of ACELYRIN stock for Q2 2025, down 100% quarter-over-quarter.
  • 2 funds opened new ACELYRIN positions in Q2 2025 and 105 closed out, a net change of -103 holders.
  • The largest ACELYRIN buyer in Q2 2025 was Osaic Holdings, an estimated $654 added.
  • The largest ACELYRIN seller in Q2 2025 was Tang Capital Management, an estimated $24.3M sold.

Based on aggregated 13F filings for Q2 2025.