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Livermore
ZHEN

ACELYRIN, Inc.

SLRNDelisted May 21, 2025
Industry
Pharmaceutical Preparations
SEC CIK
0001962918

ACELYRIN, Inc. was delisted on May 21, 2025; its insiders filed their last Form 4 on May 23, 2025; 106 institutions reported holding it in 13F filings for Q1 2025, worth $182.6M in total; no superinvestor held it.

Q1 2025 vs. Q4 2024

How the institutions holding ACELYRIN, Inc. changed between Q4 2024 and Q1 2025.

All holders in Q1 2025All holders in Q4 2024

13F holders of SLRN: Q4 2024 compared with Q1 2025
MeasureQ4 2024Of which not filed for Q1 2025Q1 2025Change
Holders1261106−19
Shares88.0M202.2K73.9M−13.8M (−15.8%)
Value$276.4M$635.0K$182.6M−$93.2M (−33.8%)

1 institution that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so the changes leave them out.

New holders (23)

Institutions that held ACELYRIN, Inc. at the end of Q1 2025 but not at the end of Q4 2024.

Institutions new to SLRN in Q1 2025
InstitutionSharesValue% of portfolio
Tang Capital Management LLC9,818,115$24.3M1.34%
Madison Avenue Partners, LP4,142,640$10.2M0.87%
Velan Capital Investment Management LP3,366,945$8.32M8.56%
Balyasny Asset Management LLC1,305,015$3.22M0.01%
Cantor Fitzgerald, L. P.588,664$1.45M0.05%
Towerview LLC540,000$1.33M0.96%
Nuveen, LLC202,239$499.5K0.00%
AQR Capital Management LLC193,323$477.5K0.00%
Bridgeway Capital Management, LLC140,900$348.0K0.01%
Monaco Asset Management SAM139,600$344.8K0.17%
HGC Investment Management Inc.70,425$173.9K0.06%
LMR Partners LLP50,000$123.5K0.00%
Yakira Capital Management, Inc.48,557$119.9K0.05%
Mariner, LLC31,389$77.5K0.00%
Western Wealth Management, LLC25,000$61.8K0.00%
CSS LLC24,564$60.7K0.00%
CIBC World Markets Corp16,427$40.6K0.00%
Cerity Partners LLC10,419$25.7K0.00%
Quadrature Capital Ltd10,246$25.3K0.00%
FNY Investment Advisers, LLC10,000$24.0K0.01%
Caitong International Asset Management Co., Ltd1,279$3.16K0.00%
True Wealth Design, LLC361$8920.00%
EverSource Wealth Advisors, LLC96$2370.00%

Sold out (42)

Institutions that held ACELYRIN, Inc. at the end of Q4 2024 and filed for Q1 2025 without it.

Institutions that sold out of SLRN in Q1 2025
InstitutionShares, Q4 2024Value, Q4 2024
Blue Owl Capital Holdings LP2,783,946$8.74M
Siren, L.L.C.1,729,665$5.43M
StemPoint Capital LP1,704,825$5.35M
RTW Investments, LP978,310$3.07M
Kynam Capital Management, LP847,366$2.66M
Ikarian Capital, LLC676,608$2.12M
Jacobs Levy Equity Management, Inc662,981$2.08M
Adage Capital Partners GP, L.L.C.450,000$1.41M
Kennedy Capital Management, Inc.446,850$1.40M
ADAR1 Capital Management, LLC444,967$1.40M
TD Asset Management Inc267,656$840.4K
Exome Asset Management LLC234,435$736.1K
Ameriprise Financial Inc228,098$716.2K
UBS Oconnor LLC211,938$665.5K
Hudson Bay Capital Management LP196,620$617.4K
Almitas Capital LLC148,704$466.9K
ExodusPoint Capital Management, LP134,680$423.0K
Martingale Asset Management L P102,596$322.2K
Acadian Asset Management LLC101,514$318.0K
Public Employees Retirement System of Ohio97,347$305.7K
DAFNA Capital Management LLC87,989$276.3K
Algert Global LLC77,060$242.0K
Russell Investments Group, Ltd.66,699$209.4K
Tudor Investment Corp Et Al48,299$151.7K
Boothbay Fund Management, LLC29,828$93.7K
Verition Fund Management LLC27,480$86.3K
Thrivent Financial for Lutherans26,604$84.0K
PDT Partners, LLC21,860$68.6K
Virtus ETF Advisers LLC20,083$63.1K
HRT Financial LP16,021$50.0K
Man Group plc15,193$47.7K
Rpo LLC14,693$46.1K
Prudential Financial Inc14,130$44.4K
HSBC Holdings PLC11,663$36.3K
4WEALTH Advisors, Inc.11,212$35.2K
Jane Street Group, LLC10,031$31.5K
Simplex Trading, LLC4,899$15.0K
Federated Hermes, Inc.2,859$8.98K
Comerica Bank1,428$4.48K
Signaturefd, LLC175$550
Skopos Labs, Inc.62$195
Allworth Financial LP65$132

Not filed for Q1 2025 yet (1)

Institutions that held ACELYRIN, Inc. at the end of Q4 2024 and haven't filed a 13F for Q1 2025. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding SLRN in Q4 2024 that haven't filed for Q1 2025
InstitutionShares, Q4 2024Value, Q4 2024
Nuveen Asset Management, LLC202,239$635.0K