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