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.
13F holders, Q4 2023
Institutional positions in ACELYRIN, Inc. as of Dec 31, 2023. 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
- Institutional holders
- 110
- +10 vs. Q3 2023
- Shares held
- 84.8M
- +4.81M (+6.0%) vs. Q3 2023
- Total value
- $632.6M
- −$175.7M (−21.7%) vs. Q3 2023
- New holders
- 35
- 31 more added
- Sold out
- 25
- 28 more reduced
2 institutions that held it in Q3 2023 haven't filed for Q4 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2023: 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, Q4 2023
Shares, value and share of portfolio for each institution holding ACELYRIN, Inc.; share changes are against Q3 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| AyurMaya Capital Management Company, LP | 9,334,735 | $69.6M | 100.00% | 00.0% | Unchanged |
| FMR LLC | 8,822,271 | $65.8M | 0.01% | −139,455−1.6% | Reduced |
| Citadel Advisors LLC | 6,474,048 | $48.3M | 0.05% | +547,355+9.2% | Added |
| Vanguard Group Inc | 6,155,910 | $45.9M | 0.00% | +2,966,883+93.0% | Added |
| Opaleye Management Inc. | 4,146,138 | $30.9M | 8.30% | 00.0% | Unchanged |
| OrbiMed Advisors LLC | 4,001,711 | $29.9M | 0.60% | −1,324,591−24.9% | Reduced |
| venBio Partners LLC | 3,852,470 | $28.7M | 4.31% | 00.0% | Unchanged |
| JPMorgan Chase & Co | 3,188,477 | $23.8M | 0.00% | +24,386+0.8% | Added |
| Artal Group S.A. | 3,035,888 | $22.6M | 0.77% | +566,609+22.9% | Added |
| BlackRock Inc. | 2,907,558 | $21.7M | 0.00% | +709,436+32.3% | Added |
| Tybourne Capital Management (HK) Ltd | 2,906,629 | $21.7M | 3.23% | +676,187+30.3% | Added |
| General Atlantic LLC | 2,889,668 | $21.6M | 0.31% | 00.0% | Unchanged |
| Samsara BioCapital, LLC | 2,523,022 | $18.8M | 2.93% | +141,443+5.9% | Added |
| Blue Owl Capital Holdings LP | 2,292,990 | $17.1M | 4.09% | +2,292,990 | New |
| Ikarian Capital, LLC | 1,991,005 | $14.9M | 4.06% | −927,421−31.8% | Reduced |
| Janus Henderson Group PLC | 1,602,155 | $12.0M | 0.01% | −192,537−10.7% | Reduced |
| Decheng Capital LLC | 1,370,951 | $10.2M | 2.86% | +1,370,951 | New |
| Logos Global Management LP | 1,250,000 | $9.32M | 1.04% | +1,250,000 | New |
| Kynam Capital Management, LP | 1,200,000 | $8.95M | 1.01% | 00.0% | Unchanged |
| Goldman Sachs Group Inc | 1,118,911 | $8.35M | 0.00% | −660,914−37.1% | Reduced |
| RTW Investments, LP | 978,310 | $7.30M | 0.11% | 00.0% | Unchanged |
| Woodline Partners LP | 948,559 | $7.08M | 0.08% | +40,646+4.5% | Added |
| VR Adviser, LLC | 937,113 | $6.99M | 0.48% | +72,781+8.4% | Added |
| Marshall Wace, LLP | 894,182 | $6.67M | 0.01% | 00.0% | Unchanged |
| Morgan Stanley | 881,719 | $6.58M | 0.00% | +632,146+253.3% | Added |
| Franklin Resources Inc | 805,668 | $6.01M | 0.00% | 00.0% | Unchanged |
| Geode Capital Management, LLC | 774,131 | $5.78M | 0.00% | +65,351+9.2% | Added |
| State Street Corp | 664,938 | $4.96M | 0.00% | −1,315,378−66.4% | Reduced |
| StemPoint Capital LP | 587,373 | $4.38M | 1.18% | +587,373 | New |
| Walleye Capital LLC | 577,492 | $4.31M | 0.06% | +130,137+29.1% | Added |
| Kennedy Capital Management, Inc. | 474,006 | $3.54M | 0.08% | +474,006 | New |
| Point72 Asset Management, L.P. | 444,992 | $3.32M | 0.01% | +286,192+180.2% | Added |
| DAFNA Capital Management LLC | 371,200 | $2.77M | 0.66% | +363,900+4,984.9% | Added |
| Eagle Asset Management Inc | 358,734 | $2.68M | 0.01% | +371+0.1% | Added |
| Superstring Capital Management LP | 356,924 | $2.66M | 1.90% | +356,924 | New |
| Sectoral Asset Management Inc | 325,549 | $2.43M | 1.05% | +325,549 | New |
| Vontobel Holding Ltd. | 325,549 | $2.43M | 0.02% | +325,549 | New |
| Northern Trust Corp | 290,455 | $2.17M | 0.00% | +10,480+3.7% | Added |
| Charles Schwab Investment Management Inc | 247,756 | $1.85M | 0.00% | +3,934+1.6% | Added |
| Adage Capital Partners GP, L.L.C. | 180,000 | $1.34M | 0.00% | +80,000+80.0% | Added |
| Cubist Systematic Strategies, LLC | 158,967 | $1.19M | 0.01% | +158,967 | New |
| Point72 Europe (London) LLP | 122,971 | $917.4K | 0.11% | +122,971 | New |
| Voloridge Investment Management, LLC | 103,677 | $773.4K | 0.00% | +103,677 | New |
| Boothbay Fund Management, LLC | 100,346 | $748.6K | 0.03% | +100,346 | New |
| Ameriprise Financial Inc | 96,691 | $721.3K | 0.00% | +28,618+42.0% | Added |
| Bank of New York Mellon Corp | 95,710 | $714.0K | 0.00% | +3,009+3.2% | Added |
| Lighthouse Investment Partners, LLC | 86,651 | $646.4K | 0.05% | +86,651 | New |
| Bank of America Corp | 83,280 | $621.3K | 0.00% | −141,989−63.0% | Reduced |
| Prudential Financial Inc | 78,443 | $585.2K | 0.00% | +78,443 | New |
| Ghisallo Capital Management LLC | 70,000 | $522.2K | 0.05% | 00.0% | Unchanged |
| Nuveen Asset Management, LLC | 67,771 | $505.6K | 0.00% | +22,835+50.8% | Added |
| Alps Advisors Inc | 64,627 | $482.1K | 0.00% | +64,627 | New |
| Squarepoint Ops LLC | 62,907 | $469.3K | 0.00% | +62,907 | New |
| UBS Oconnor LLC | 60,000 | $447.6K | 0.01% | +60,000 | New |
| PDT Partners, LLC | 57,896 | $431.9K | 0.05% | −36,706−38.8% | Reduced |
| 683 Capital Management, LLC | 53,630 | $400.1K | 0.04% | +53,630 | New |
| Landscape Capital Management, L.L.C. | 51,016 | $380.6K | 0.03% | +51,016 | New |
| Alyeska Investment Group, L.P. | 50,070 | $373.5K | 0.00% | 00.0% | Unchanged |
| Jump Financial, LLC | 49,500 | $369.3K | 0.01% | +29,908+152.7% | Added |
| Barclays PLC | 49,484 | $369.1K | 0.00% | −57,204−53.6% | Reduced |
| Rhumbline Advisers | 45,247 | $337.5K | 0.00% | +1,095+2.5% | Added |
| STRS Ohio | 42,300 | $315.0K | 0.00% | +35,300+504.3% | Added |
| Swiss National Bank | 38,300 | $285.7K | 0.00% | −25,800−40.2% | Reduced |
| Jane Street Group, LLC | 33,628 | $250.9K | 0.00% | +33,628 | New |
| Legal & General Group Plc | 30,646 | $228.6K | 0.00% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 29,281 | $218.4K | 0.00% | +27,041+1,207.2% | Added |
| Capstone Investment Advisors, LLC | 27,345 | $204.0K | 0.00% | +27,345 | New |
| Alliancebernstein L.P. | 24,930 | $186.0K | 0.00% | 00.0% | Unchanged |
| State of Wisconsin Investment Board | 23,442 | $174.9K | 0.00% | −14,148−37.6% | Reduced |
| Susquehanna International Group, LLP | 23,096 | $172.3K | 0.00% | +9,691+72.3% | Added |
| California State Teachers Retirement System | 22,746 | $169.7K | 0.00% | −10,717−32.0% | Reduced |
| Manufacturers Life Insurance Company, The | 22,368 | $166.9K | 0.00% | −33,324−59.8% | Reduced |
| EntryPoint Capital, LLC | 20,968 | $156.4K | 0.15% | +20,968 | New |
| Y-Intercept (Hong Kong) Ltd | 20,565 | $153.4K | 0.01% | +20,565 | New |
| Invesco Ltd. | 20,350 | $151.8K | 0.00% | +2,397+13.4% | Added |
| Ausdal Financial Partners, Inc. | 20,300 | $151.4K | 0.02% | −700−3.3% | Reduced |
| Wells Fargo & Company | 19,915 | $148.6K | 0.00% | −36,760−64.9% | Reduced |
| Credit Suisse AG | 19,312 | $144.1K | 0.00% | −8,177−29.7% | Reduced |
| MetLife Investment Management | 18,159 | $135.5K | 0.00% | 00.0% | Unchanged |
| Mirae Asset Global Investments Co., Ltd. | 17,038 | $127.1K | 0.00% | −3,158−15.6% | Reduced |
| American International Group, Inc. | 16,475 | $122.9K | 0.00% | −66−0.4% | Reduced |
| SG Americas Securities, LLC | 14,741 | $110.0K | 0.00% | +14,741 | New |
| Deutsche Bank AG | 14,516 | $108.3K | 0.00% | −819−5.3% | Reduced |
| Dynamic Technology Lab Private Ltd | 14,431 | $108.0K | 0.01% | +14,431 | New |
| Voya Investment Management LLC | 13,430 | $100.2K | 0.00% | 00.0% | Unchanged |
| New York State Common Retirement Fund | 13,181 | $98.3K | 0.00% | +6,032+84.4% | Added |
| Virtus ETF Advisers LLC | 12,717 | $94.9K | 0.06% | +12,717 | New |
| ProShare Advisors LLC | 11,695 | $87.2K | 0.00% | +11,695 | New |
| China Universal Asset Management Co., Ltd. | 11,259 | $84.0K | 0.02% | +11,259 | New |
| Bridgefront Capital, LLC | 11,249 | $83.9K | 0.06% | +11,249 | New |
| Royal Bank of Canada | 10,664 | $80.0K | 0.00% | +5,716+115.5% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 10,716 | $79.9K | 0.00% | +9,203+608.3% | Added |
| Raymond James & Associates | 10,522 | $78.5K | 0.00% | −8,034−43.3% | Reduced |
| Prelude Capital Management, LLC | 10,506 | $78.4K | 0.01% | +10,506 | New |
| Group One Trading, L.P. | 9,814 | $73.2K | 0.00% | −3,136−24.2% | Reduced |
| Cutler Group LP | 8,200 | $61.0K | 0.01% | −2,100−20.4% | Reduced |
| ADAR1 Capital Management, LLC | 7,000 | $52.2K | 0.02% | +7,000 | New |
| Citigroup Inc | 6,500 | $48.5K | 0.00% | −66,769−91.1% | Reduced |
| Sandia Investment Management LP | 5,980 | $44.6K | 0.03% | −4,020−40.2% | Reduced |
| Amalgamated Bank | 3,899 | $29.0K | 0.00% | −382−8.9% | Reduced |