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, Q2 2023
Institutional positions in ACELYRIN, Inc. as of Jun 30, 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
- 82
- +82 vs. Q1 2023
- Shares held
- 77.2M
- +77.2M vs. Q1 2023
- Total value
- $1.60B
- +$1.60B vs. Q1 2023
- New holders
- 82
- 0 more added
- Sold out
- 0
- 0 more reduced
Compare with Q1 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, Q2 2023
Shares, value and share of portfolio for each institution holding ACELYRIN, Inc.; share changes are against Q1 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Foster Dykema Cabot & Co Inc | 51 | $1.00K | 0.00% | +51 | New |
| Private Trust Co NA | 149 | $3.11K | 0.00% | +149 | New |
| US Bancorp | 186 | $3.89K | 0.00% | +186 | New |
| The PNC Financial Services Group, Inc. | 215 | $4.49K | 0.00% | +215 | New |
| Wells Fargo & Company | 224 | $4.68K | 0.00% | +224 | New |
| Advisor Group Holdings, Inc. | 1,194 | $25.0K | 0.00% | +1,194 | New |
| Bank of America Corp | 1,841 | $38.5K | 0.00% | +1,841 | New |
| UBS Group AG | 2,081 | $43.5K | 0.00% | +2,081 | New |
| Tower Research Capital LLC (TRC) | 3,085 | $64.5K | 0.00% | +3,085 | New |
| Simplex Trading, LLC | 3,511 | $73.0K | 0.00% | +3,511 | New |
| Jane Street Group, LLC | 9,695 | $202.6K | 0.00% | +9,695 | New |
| Sandia Investment Management LP | 10,000 | $209.0K | 0.07% | +10,000 | New |
| Zimmer Partners, LP | 12,000 | $250.8K | 0.01% | +12,000 | New |
| Bank of New York Mellon Corp | 13,223 | $276.4K | 0.00% | +13,223 | New |
| Landscape Capital Management, L.L.C. | 15,426 | $322.4K | 0.04% | +15,426 | New |
| Greenland Capital Management LP | 16,730 | $349.7K | 0.05% | +16,730 | New |
| Morgan Stanley | 18,054 | $377.3K | 0.00% | +18,054 | New |
| Jump Financial, LLC | 23,684 | $495.0K | 0.02% | +23,684 | New |
| Gilder Gagnon Howe & Co LLC | 28,483 | $595.3K | 0.01% | +28,483 | New |
| Federated Hermes, Inc. | 30,000 | $627.0K | 0.00% | +30,000 | New |
| Royal Bank of Canada | 30,994 | $648.0K | 0.00% | +30,994 | New |
| Point72 Middle East FZE | 37,274 | $779.0K | 0.04% | +37,274 | New |
| Manufacturers Life Insurance Company, The | 42,000 | $877.8K | 0.00% | +42,000 | New |
| Susquehanna International Group, LLP | 49,650 | $1.04M | 0.00% | +49,650 | New |
| Davidson Kempner Capital Management LP | 49,680 | $1.04M | 0.02% | +49,680 | New |
| Alyeska Investment Group, L.P. | 50,070 | $1.05M | 0.01% | +50,070 | New |
| Schonfeld Strategic Advisors LLC | 55,208 | $1.15M | 0.01% | +55,208 | New |
| Kennedy Capital Management, Inc. | 55,719 | $1.16M | 0.03% | +55,719 | New |
| Northern Trust Corp | 58,125 | $1.21M | 0.00% | +58,125 | New |
| Rokos Capital Management LLP | 57,500 | $1.25M | 0.03% | +57,500 | New |
| TD Asset Management Inc | 61,610 | $1.29M | 0.00% | +61,610 | New |
| Holocene Advisors, LP | 63,421 | $1.33M | 0.01% | +63,421 | New |
| Ghisallo Capital Management LLC | 70,000 | $1.46M | 0.17% | +70,000 | New |
| Bank of Montreal | 93,315 | $1.85M | 0.00% | +93,315 | New |
| Ensign Peak Advisors, Inc | 100,000 | $2.09M | 0.00% | +100,000 | New |
| ExodusPoint Capital Management, LP | 111,077 | $2.32M | 0.03% | +111,077 | New |
| State Street Corp | 117,000 | $2.45M | 0.00% | +117,000 | New |
| Boothbay Fund Management, LLC | 117,536 | $2.46M | 0.08% | +117,536 | New |
| Rock Springs Capital Management LP | 141,876 | $2.97M | 0.07% | +141,876 | New |
| Charles Schwab Investment Management Inc | 159,248 | $3.33M | 0.00% | +159,248 | New |
| Blackstone Group Inc. | 175,000 | $3.66M | 0.02% | +175,000 | New |
| Jennison Associates LLC | 200,000 | $4.18M | 0.00% | +200,000 | New |
| Perceptive Advisors LLC | 200,000 | $4.18M | 0.12% | +200,000 | New |
| Sectoral Asset Management Inc | 201,017 | $4.20M | 0.70% | +201,017 | New |
| Victory Capital Management Inc | 212,323 | $4.44M | 0.00% | +212,323 | New |
| Balyasny Asset Management LLC | 233,398 | $4.88M | 0.01% | +233,398 | New |
| Goldman Sachs Group Inc | 309,998 | $6.48M | 0.00% | +309,998 | New |
| Geode Capital Management, LLC | 347,768 | $7.27M | 0.00% | +347,768 | New |
| Redmile Group, LLC | 364,493 | $7.62M | 0.29% | +364,493 | New |
| Adage Capital Partners GP, L.L.C. | 370,000 | $7.73M | 0.02% | +370,000 | New |
| Ameriprise Financial Inc | 404,823 | $8.46M | 0.00% | +404,823 | New |
| Braidwell LP | 500,000 | $10.4M | 0.34% | +500,000 | New |
| Eagle Asset Management Inc | 520,050 | $10.9M | 0.06% | +520,050 | New |
| Massachusetts Financial Services Co | 641,068 | $13.4M | 0.00% | +641,068 | New |
| Deerfield Management Company, L.P. (Series C) | 650,000 | $13.6M | 0.29% | +650,000 | New |
| Millennium Management LLC | 732,020 | $15.3M | 0.02% | +732,020 | New |
| Avidity Partners Management LP | 750,000 | $15.7M | 0.55% | +750,000 | New |
| BlackRock Inc. | 847,895 | $17.7M | 0.00% | +847,895 | New |
| Franklin Resources Inc | 879,268 | $18.4M | 0.01% | +879,268 | New |
| Price T Rowe Associates Inc | 889,382 | $18.6M | 0.00% | +889,382 | New |
| RTW Investments, LP | 978,310 | $20.4M | 0.39% | +978,310 | New |
| Fred Alger Management, LLC | 1,010,049 | $21.1M | 0.11% | +1,010,049 | New |
| Woodline Partners LP | 1,035,555 | $21.6M | 0.26% | +1,035,555 | New |
| Wellington Management Group LLP | 1,048,279 | $21.9M | 0.00% | +1,048,279 | New |
| Alliancebernstein L.P. | 1,143,274 | $23.9M | 0.01% | +1,143,274 | New |
| Marshall Wace, LLP | 1,161,528 | $24.3M | 0.05% | +1,161,528 | New |
| General Atlantic LLC | 1,500,000 | $31.4M | 0.49% | +1,500,000 | New |
| Decheng Capital Management III (Cayman), LLC | 1,554,417 | $32.5M | 10.19% | +1,554,417 | New |
| Driehaus Capital Management LLC | 1,758,797 | $36.8M | 0.46% | +1,758,797 | New |
| Artal Group S.A. | 1,821,214 | $38.1M | 1.22% | +1,821,214 | New |
| Tybourne Capital Management (HK) Ltd | 2,230,442 | $46.6M | 5.04% | +2,230,442 | New |
| Samsara BioCapital, LLC | 2,256,022 | $47.2M | 8.28% | +2,256,022 | New |
| CHI Advisors LLC | 2,663,806 | $55.7M | 16.90% | +2,663,806 | New |
| Ikarian Capital, LLC | 2,918,426 | $61.0M | 21.52% | +2,918,426 | New |
| Vanguard Group Inc | 3,072,180 | $64.2M | 0.00% | +3,072,180 | New |
| JPMorgan Chase & Co | 3,703,338 | $77.4M | 0.01% | +3,703,338 | New |
| venBio Partners LLC | 3,857,230 | $80.6M | 29.18% | +3,857,230 | New |
| Opaleye Management Inc. | 4,158,638 | $86.9M | 20.79% | +4,158,638 | New |
| OrbiMed Advisors LLC | 5,326,302 | $111.3M | 2.17% | +5,326,302 | New |
| Citadel Advisors LLC | 6,039,657 | $121.3M | 0.14% | +6,039,657 | New |
| FMR LLC | 7,456,238 | $150.8M | 0.01% | +7,456,238 | New |
| AyurMaya Capital Management Company, LP | 9,334,735 | $195.1M | 100.00% | +9,334,735 | New |