ACELYRIN, Inc.
SLRNDelisted- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001962918
ACELYRIN, Inc. was delisted in 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.
13F holders, Q2 2025
Institutional positions in ACELYRIN, Inc. as of Jun 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
SLRN is no longer listed, and 13F filings after Q1 2025 list far fewer holders. See Q1 2025
- Institutional holders
- 2
- −104 vs. Q1 2025
- Shares held
- 285
- −73.9M (−100.0%) vs. Q1 2025
- Total value
- $704
- −$182.6M (−100.0%) vs. Q1 2025
- New holders
- 1
- 1 more added
- Sold out
- 105
- 0 more reduced
Compare with Q1 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting SLRN on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 0 | $0 |
| Q1 2026 | 0 | $0 |
| Q4 2025 | 0 | $0 |
| Q3 2025 | 0 | $0 |
| Q2 2025 | 2 | $704 |
| Q1 2025 | 106 | $182.6M |
| Q4 2024 | 126 | $276.4M |
| Q3 2024 | 122 | $430.2M |
| Q2 2024 | 113 | $383.7M |
| Q1 2024 | 109 | $613.2M |
| Q4 2023 | 110 | $632.6M |
| Q3 2023 | 102 | $847.0M |
| Q2 2023 | 82 | $1.60B |
| Q1 2023 | 0 | $0 |
| Q4 2022 | 0 | $0 |
| Q3 2022 | 0 | $0 |
| Q2 2022 | 0 | $0 |
| Q1 2022 | 0 | $0 |
| Q4 2021 | 0 | $0 |
| Q3 2021 | 0 | $0 |
| Q2 2021 | 0 | $0 |
| Q1 2021 | 0 | $0 |
Institutions, Q2 2025
Shares, value and share of portfolio for each institution holding ACELYRIN, Inc.; share changes are against Q1 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Advisor Group Holdings, Inc. | 282 | $697 | 0.00% | +282 | New |
| IFP Advisors, Inc | 3 | $7 | 0.00% | +3 | Added |
| Tang Capital Management LLC | 0 | $0 | 0.00% | −9,818,115−100.0% | Sold out |
| AyurMaya Capital Management Company, LP | 0 | $0 | 0.00% | −9,334,735−100.0% | Sold out |
| BlackRock, Inc. | 0 | $0 | 0.00% | −5,805,096−100.0% | Sold out |
| T. Rowe Price Investment Management, Inc. | 0 | $0 | 0.00% | −4,649,865−100.0% | Sold out |
| Madison Avenue Partners, LP | 0 | $0 | 0.00% | −4,142,640−100.0% | Sold out |
| Vanguard Group Inc | 0 | $0 | 0.00% | −4,079,706−100.0% | Sold out |
| OrbiMed Advisors LLC | 0 | $0 | 0.00% | −4,001,711−100.0% | Sold out |
| venBio Partners LLC | 0 | $0 | 0.00% | −3,806,410−100.0% | Sold out |
| Velan Capital Investment Management LP | 0 | $0 | 0.00% | −3,366,945−100.0% | Sold out |
| Tybourne Capital Management (HK) Ltd | 0 | $0 | 0.00% | −2,906,629−100.0% | Sold out |
| General Atlantic LLC | 0 | $0 | 0.00% | −2,695,327−100.0% | Sold out |
| Samsara BioCapital, LLC | 0 | $0 | 0.00% | −2,523,022−100.0% | Sold out |
| Palo Alto Investors LP | 0 | $0 | 0.00% | −1,792,895−100.0% | Sold out |
| Geode Capital Management, LLC | 0 | $0 | 0.00% | −1,773,818−100.0% | Sold out |
| Opaleye Management Inc. | 0 | $0 | 0.00% | −1,615,000−100.0% | Sold out |
| State Street Corp | 0 | $0 | 0.00% | −1,420,068−100.0% | Sold out |
| Balyasny Asset Management LLC | 0 | $0 | 0.00% | −1,305,015−100.0% | Sold out |
| Alyeska Investment Group, L.P. | 0 | $0 | 0.00% | −615,878−100.0% | Sold out |
| Renaissance Technologies LLC | 0 | $0 | 0.00% | −599,800−100.0% | Sold out |
| Northern Trust Corp | 0 | $0 | 0.00% | −598,151−100.0% | Sold out |
| JPMorgan Chase & Co | 0 | $0 | 0.00% | −590,846−100.0% | Sold out |
| Cantor Fitzgerald, L. P. | 0 | $0 | 0.00% | −588,664−100.0% | Sold out |
| Charles Schwab Investment Management Inc | 0 | $0 | 0.00% | −544,575−100.0% | Sold out |
| Towerview LLC | 0 | $0 | 0.00% | −540,000−100.0% | Sold out |
| Goldman Sachs Group Inc | 0 | $0 | 0.00% | −351,407−100.0% | Sold out |
| Morgan Stanley | 0 | $0 | 0.00% | −275,815−100.0% | Sold out |
| Susquehanna Fundamental Investments, LLC | 0 | $0 | 0.00% | −273,412−100.0% | Sold out |
| Nuveen, LLC | 0 | $0 | 0.00% | −202,239−100.0% | Sold out |
| AQR Capital Management LLC | 0 | $0 | 0.00% | −193,323−100.0% | Sold out |
| Wellington Management Group LLP | 0 | $0 | 0.00% | −179,150−100.0% | Sold out |
| Citadel Advisors LLC | 0 | $0 | 0.00% | −176,437−100.0% | Sold out |
| Bank of New York Mellon Corp | 0 | $0 | 0.00% | −173,277−100.0% | Sold out |
| Stonepine Capital Management, LLC | 0 | $0 | 0.00% | −167,580−100.0% | Sold out |
| Millennium Management LLC | 0 | $0 | 0.00% | −149,298−100.0% | Sold out |
| Bridgeway Capital Management, LLC | 0 | $0 | 0.00% | −140,900−100.0% | Sold out |
| Monaco Asset Management SAM | 0 | $0 | 0.00% | −139,600−100.0% | Sold out |
| Blair William & Co | 0 | $0 | 0.00% | −138,595−100.0% | Sold out |
| Franklin Resources Inc | 0 | $0 | 0.00% | −127,023−100.0% | Sold out |
| Los Angeles Capital Management LLC | 0 | $0 | 0.00% | −109,612−100.0% | Sold out |
| UBS Group AG | 0 | $0 | 0.00% | −103,525−100.0% | Sold out |
| XTX Topco Ltd | 0 | $0 | 0.00% | −103,047−100.0% | Sold out |
| Rhumbline Advisers | 0 | $0 | 0.00% | −102,174−100.0% | Sold out |
| American Century Companies Inc | 0 | $0 | 0.00% | −91,390−100.0% | Sold out |
| Susquehanna International Group, LLP | 0 | $0 | 0.00% | −90,669−100.0% | Sold out |
| Invesco Ltd. | 0 | $0 | 0.00% | −85,520−100.0% | Sold out |
| Barclays PLC | 0 | $0 | 0.00% | −82,871−100.0% | Sold out |
| Alps Advisors Inc | 0 | $0 | 0.00% | −74,640−100.0% | Sold out |
| Alliancebernstein L.P. | 0 | $0 | 0.00% | −73,670−100.0% | Sold out |
| HGC Investment Management Inc. | 0 | $0 | 0.00% | −70,425−100.0% | Sold out |
| Deutsche Bank AG | 0 | $0 | 0.00% | −61,539−100.0% | Sold out |
| Citigroup Inc | 0 | $0 | 0.00% | −53,629−100.0% | Sold out |
| Marshall Wace, LLP | 0 | $0 | 0.00% | −53,100−100.0% | Sold out |
| Wells Fargo & Company | 0 | $0 | 0.00% | −52,608−100.0% | Sold out |
| LMR Partners LLP | 0 | $0 | 0.00% | −50,000−100.0% | Sold out |
| Intech Investment Management LLC | 0 | $0 | 0.00% | −49,830−100.0% | Sold out |
| Yakira Capital Management, Inc. | 0 | $0 | 0.00% | −48,557−100.0% | Sold out |
| Virtus Investment Advisers, Inc. | 0 | $0 | 0.00% | −46,372−100.0% | Sold out |
| Dimensional Fund Advisors LP | 0 | $0 | 0.00% | −44,755−100.0% | Sold out |
| STRS Ohio | 0 | $0 | 0.00% | −44,300−100.0% | Sold out |
| Mirae Asset Global ETFs Holdings Ltd. | 0 | $0 | 0.00% | −43,780−100.0% | Sold out |
| Bank of America Corp | 0 | $0 | 0.00% | −36,410−100.0% | Sold out |
| Corebridge Financial, Inc. | 0 | $0 | 0.00% | −36,269−100.0% | Sold out |
| Prelude Capital Management, LLC | 0 | $0 | 0.00% | −36,220−100.0% | Sold out |
| Price T Rowe Associates Inc | 0 | $0 | 0.00% | −34,515−100.0% | Sold out |
| Mariner, LLC | 0 | $0 | 0.00% | −31,389−100.0% | Sold out |
| Manufacturers Life Insurance Company, The | 0 | $0 | 0.00% | −28,717−100.0% | Sold out |
| SG Americas Securities, LLC | 0 | $0 | 0.00% | −27,110−100.0% | Sold out |
| Western Wealth Management, LLC | 0 | $0 | 0.00% | −25,000−100.0% | Sold out |
| CSS LLC | 0 | $0 | 0.00% | −24,564−100.0% | Sold out |
| Voya Investment Management LLC | 0 | $0 | 0.00% | −20,768−100.0% | Sold out |
| ProShare Advisors LLC | 0 | $0 | 0.00% | −20,570−100.0% | Sold out |
| China Universal Asset Management Co., Ltd. | 0 | $0 | 0.00% | −20,199−100.0% | Sold out |
| MetLife Investment Management | 0 | $0 | 0.00% | −18,493−100.0% | Sold out |
| Nisa Investment Advisors, LLC | 0 | $0 | 0.00% | −16,586−100.0% | Sold out |
| CIBC World Markets Corp | 0 | $0 | 0.00% | −16,427−100.0% | Sold out |
| New York State Common Retirement Fund | 0 | $0 | 0.00% | −15,512−100.0% | Sold out |
| Bank of Montreal | 0 | $0 | 0.00% | −15,227−100.0% | Sold out |
| Two Sigma Advisers, LP | 0 | $0 | 0.00% | −15,100−100.0% | Sold out |
| Police & Firemen's Retirement System of New Jersey | 0 | $0 | 0.00% | −14,886−100.0% | Sold out |
| CWM, LLC | 0 | $0 | 0.00% | −13,090−100.0% | Sold out |
| Ausdal Financial Partners, Inc. | 0 | $0 | 0.00% | −12,800−100.0% | Sold out |
| SEI Investments Co | 0 | $0 | 0.00% | −10,782−100.0% | Sold out |
| Cerity Partners LLC | 0 | $0 | 0.00% | −10,419−100.0% | Sold out |
| Quadrature Capital Ltd | 0 | $0 | 0.00% | −10,246−100.0% | Sold out |
| HighTower Advisors, LLC | 0 | $0 | 0.00% | −10,031−100.0% | Sold out |
| FNY Investment Advisers, LLC | 0 | $0 | 0.00% | −10,000−100.0% | Sold out |
| Group One Trading, L.P. | 0 | $0 | 0.00% | −7,662−100.0% | Sold out |
| Ameritas Investment Partners, Inc. | 0 | $0 | 0.00% | −7,243−100.0% | Sold out |
| Legal & General Group Plc | 0 | $0 | 0.00% | −6,625−100.0% | Sold out |
| California State Teachers Retirement System | 0 | $0 | 0.00% | −5,289−100.0% | Sold out |
| Royal Bank of Canada | 0 | $0 | 0.00% | −5,263−100.0% | Sold out |
| BNP Paribas Arbitrage, SA | 0 | $0 | 0.00% | −5,061−100.0% | Sold out |
| FMR LLC | 0 | $0 | 0.00% | −4,976−100.0% | Sold out |
| Tower Research Capital LLC (TRC) | 0 | $0 | 0.00% | −3,637−100.0% | Sold out |
| Mirae Asset Global Investments Co., Ltd. | 0 | $0 | 0.00% | −3,370−100.0% | Sold out |
| GF Fund Management Co. Ltd. | 0 | $0 | 0.00% | −2,569−100.0% | Sold out |
| Amalgamated Bank | 0 | $0 | 0.00% | −2,452−100.0% | Sold out |
| Sterling Capital Management LLC | 0 | $0 | 0.00% | −1,311−100.0% | Sold out |