ACELYRIN, INC.

Historical 13F Holders

Symbol
SLRN
CUSIP
00445A100
All holders as of
Q2 2025
Type
Equity
Class
COM
Reported Value, Excluding Options
Total Filings

13D/G Filers

Investors who own more than 5% of a class must file a Schedule 13D or 13G. Each filer's latest filing for 00445A100 since 12/18/2024, largest first.

Filer % of Class Filed
Madison Avenue Partners, LP 13D
5.1% 4/30/2025
Event 4/29/2025
Under 5%, checked the "5 percent or less" box, or amended by a later filing (7)
Integrated Core Strategies (US) LLC 13G/A
4.7% 2/10/2025
Event 12/31/2024
T. Rowe Price Investment Management, Inc. 13G/A 4.6% 3/7/2025
Event 2/28/2025
Citadel Advisors LLC 13G/A
4.2% 2/14/2025
Event 12/31/2024
Access Industries Management, LLC 13D/A
0% 5/23/2025
Event 5/21/2025
AyurMaya Capital Management Company, LP 13G/A
0% 5/23/2025
Event 5/21/2025
Tang Capital Management LLC 13D/A
0% 5/23/2025
Event 5/21/2025
Trium Capital LLP 13D/A 0% 5/27/2025
Event 5/23/2025

13F Holders by Quarter

Period Filings Shares, Excl. Options Value, Excl. Options
2025 Q2 2 285 $704.00
2025 Q1 111 73.9 M $183 M
2024 Q4 129 88.0 M $276 M
2024 Q3 127 88.1 M $434 M
2024 Q2 118 90.9 M $401 M
2024 Q1 128 94.8 M $640 M
2023 Q4 122 90.0 M $671 M
2023 Q3 121 83.8 M $847 M
2023 Q2 89 77.2 M $1.60 B