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, Q1 2024
Institutional positions in ACELYRIN, Inc. as of Mar 31, 2024. 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
- 109
- −1 vs. Q4 2023
- Shares held
- 90.9M
- +6.06M (+7.2%) vs. Q4 2023
- Total value
- $613.2M
- −$19.4M (−3.1%) vs. Q4 2023
- New holders
- 25
- 46 more added
- Sold out
- 26
- 27 more reduced
Compare with Q4 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, Q1 2024
Shares, value and share of portfolio for each institution holding ACELYRIN, Inc.; share changes are against Q4 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| AyurMaya Capital Management Company, LP | 9,334,735 | $63.0M | 100.00% | 00.0% | Unchanged |
| FMR LLC | 7,079,210 | $47.8M | 0.00% | −1,743,061−19.8% | Reduced |
| Citadel Advisors LLC | 7,028,837 | $47.4M | 0.05% | +554,789+8.6% | Added |
| Vanguard Group Inc | 6,237,543 | $42.1M | 0.00% | +81,633+1.3% | Added |
| BlackRock Inc. | 4,792,730 | $32.4M | 0.00% | +1,885,172+64.8% | Added |
| Millennium Management LLC | 4,013,528 | $27.1M | 0.02% | +4,013,528 | New |
| OrbiMed Advisors LLC | 4,001,711 | $27.0M | 0.53% | 00.0% | Unchanged |
| venBio Partners LLC | 3,852,470 | $26.0M | 9.23% | 00.0% | Unchanged |
| Adage Capital Partners GP, L.L.C. | 3,280,000 | $22.1M | 0.04% | +3,100,000+1,722.2% | Added |
| Tybourne Capital Management (HK) Ltd | 2,906,629 | $19.6M | 3.35% | 00.0% | Unchanged |
| General Atlantic LLC | 2,889,668 | $19.5M | 0.45% | 00.0% | Unchanged |
| Blue Owl Capital Holdings LP | 2,826,028 | $19.1M | 3.81% | +533,038+23.2% | Added |
| JPMorgan Chase & Co | 2,591,804 | $17.5M | 0.00% | −596,673−18.7% | Reduced |
| Samsara BioCapital, LLC | 2,523,022 | $17.0M | 2.63% | 00.0% | Unchanged |
| Artal Group S.A. | 2,405,143 | $16.2M | 0.42% | −630,745−20.8% | Reduced |
| T. Rowe Price Investment Management, Inc. | 2,119,591 | $14.3M | 0.01% | +2,119,591 | New |
| Franklin Resources Inc | 2,044,121 | $13.8M | 0.00% | +1,238,453+153.7% | Added |
| Palo Alto Investors LP | 1,715,180 | $11.6M | 1.31% | +1,715,180 | New |
| Opaleye Management Inc. | 1,580,000 | $10.7M | 2.32% | −2,566,138−61.9% | Reduced |
| Ikarian Capital, LLC | 1,564,340 | $10.6M | 2.87% | −426,665−21.4% | Reduced |
| Geode Capital Management, LLC | 1,229,995 | $8.30M | 0.00% | +455,864+58.9% | Added |
| State Street Corp | 1,128,320 | $7.62M | 0.00% | +463,382+69.7% | Added |
| Woodline Partners LP | 1,021,204 | $6.89M | 0.06% | +72,645+7.7% | Added |
| RTW Investments, LP | 978,310 | $6.60M | 0.10% | 00.0% | Unchanged |
| VR Adviser, LLC | 937,113 | $6.33M | 0.30% | 00.0% | Unchanged |
| Eagle Asset Management Inc | 946,521 | $6.30M | 0.03% | +587,787+163.9% | Added |
| Barclays PLC | 793,170 | $5.35M | 0.00% | +743,686+1,502.9% | Added |
| Goldman Sachs Group Inc | 755,900 | $5.10M | 0.00% | −363,011−32.4% | Reduced |
| StemPoint Capital LP | 714,773 | $4.82M | 1.29% | +127,400+21.7% | Added |
| Morgan Stanley | 665,663 | $4.49M | 0.00% | −216,056−24.5% | Reduced |
| Marshall Wace, LLP | 603,871 | $4.08M | 0.01% | −290,311−32.5% | Reduced |
| Jacobs Levy Equity Management, Inc | 586,746 | $3.96M | 0.02% | +586,746 | New |
| Northern Trust Corp | 519,084 | $3.50M | 0.00% | +228,629+78.7% | Added |
| Kennedy Capital Management, Inc. | 486,560 | $3.28M | 0.07% | +12,554+2.6% | Added |
| Kynam Capital Management, LP | 396,379 | $2.68M | 0.30% | −803,621−67.0% | Reduced |
| Jane Street Group, LLC | 369,196 | $2.49M | 0.00% | +335,568+997.9% | Added |
| Charles Schwab Investment Management Inc | 340,871 | $2.30M | 0.00% | +93,115+37.6% | Added |
| UBS Group AG | 251,043 | $1.69M | 0.00% | +249,208+13,580.8% | Added |
| Sectoral Asset Management Inc | 244,000 | $1.65M | 0.65% | −81,549−25.0% | Reduced |
| Point72 Asset Management, L.P. | 223,500 | $1.51M | 0.00% | −221,492−49.8% | Reduced |
| Polar Asset Management Partners Inc. | 222,400 | $1.50M | 0.04% | +222,400 | New |
| DAFNA Capital Management LLC | 202,587 | $1.37M | 0.31% | −168,613−45.4% | Reduced |
| Nuveen Asset Management, LLC | 191,457 | $1.29M | 0.00% | +123,686+182.5% | Added |
| Ameriprise Financial Inc | 190,703 | $1.29M | 0.00% | +94,012+97.2% | Added |
| Bank of New York Mellon Corp | 182,337 | $1.23M | 0.00% | +86,627+90.5% | Added |
| Blair William & Co | 138,595 | $935.5K | 0.00% | +138,595 | New |
| Renaissance Technologies LLC | 125,018 | $844.0K | 0.00% | +125,018 | New |
| Lighthouse Investment Partners, LLC | 115,808 | $781.7K | 0.05% | +29,157+33.6% | Added |
| Bank of America Corp | 93,573 | $631.6K | 0.00% | +10,293+12.4% | Added |
| Rhumbline Advisers | 86,525 | $584.0K | 0.00% | +41,278+91.2% | Added |
| Susquehanna International Group, LLP | 74,587 | $503.5K | 0.00% | +51,491+222.9% | Added |
| Dark Forest Capital Management LP | 72,450 | $489.0K | 0.08% | +72,450 | New |
| UBS Oconnor LLC | 71,412 | $482.0K | 0.01% | +11,412+19.0% | Added |
| Alps Advisors Inc | 68,659 | $463.4K | 0.00% | +4,032+6.2% | Added |
| Alliancebernstein L.P. | 56,730 | $382.9K | 0.00% | +31,800+127.6% | Added |
| Balyasny Asset Management LLC | 53,323 | $359.9K | 0.00% | +53,323 | New |
| Prudential Financial Inc | 47,292 | $319.2K | 0.00% | −31,151−39.7% | Reduced |
| Boothbay Fund Management, LLC | 44,643 | $301.3K | 0.01% | −55,703−55.5% | Reduced |
| Prelude Capital Management, LLC | 41,007 | $276.8K | 0.02% | +30,501+290.3% | Added |
| ExodusPoint Capital Management, LP | 40,381 | $273.0K | 0.00% | +40,381 | New |
| STRS Ohio | 39,800 | $268.0K | 0.00% | −2,500−5.9% | Reduced |
| MetLife Investment Management | 38,201 | $257.9K | 0.00% | +20,042+110.4% | Added |
| Wells Fargo & Company | 37,834 | $255.4K | 0.00% | +17,919+90.0% | Added |
| American International Group, Inc. | 35,793 | $241.6K | 0.00% | +19,318+117.3% | Added |
| Ghisallo Capital Management LLC | 35,000 | $236.3K | 0.03% | −35,000−50.0% | Reduced |
| Cubist Systematic Strategies, LLC | 34,881 | $235.4K | 0.00% | −124,086−78.1% | Reduced |
| Deutsche Bank AG | 33,279 | $224.6K | 0.00% | +18,763+129.3% | Added |
| New York State Common Retirement Fund | 32,429 | $218.9K | 0.00% | +19,248+146.0% | Added |
| Capstone Investment Advisors, LLC | 31,506 | $212.7K | 0.00% | +4,161+15.2% | Added |
| Public Employees Retirement System of Ohio | 28,418 | $191.8K | 0.00% | +28,418 | New |
| Shay Capital LLC | 27,227 | $183.8K | 0.05% | +27,227 | New |
| Russell Investments Group, Ltd. | 27,108 | $183.0K | 0.00% | +27,108 | New |
| Invesco Ltd. | 26,073 | $176.0K | 0.00% | +5,723+28.1% | Added |
| Manufacturers Life Insurance Company, The | 25,606 | $172.8K | 0.00% | +3,238+14.5% | Added |
| Voya Investment Management LLC | 22,762 | $153.6K | 0.00% | +9,332+69.5% | Added |
| Virtu Financial LLC | 21,834 | $147.0K | 0.01% | +21,834 | New |
| Price T Rowe Associates Inc | 20,703 | $140.0K | 0.00% | +20,703 | New |
| ProShare Advisors LLC | 19,871 | $134.1K | 0.00% | +8,176+69.9% | Added |
| Ausdal Financial Partners, Inc. | 19,300 | $130.3K | 0.02% | −1,000−4.9% | Reduced |
| China Universal Asset Management Co., Ltd. | 18,718 | $126.3K | 0.02% | +7,459+66.2% | Added |
| Simplex Trading, LLC | 18,429 | $124.0K | 0.00% | +18,429 | New |
| Arrowstreet Capital, Limited Partnership | 17,821 | $120.0K | 0.00% | +17,821 | New |
| Landscape Capital Management, L.L.C. | 17,517 | $118.2K | 0.01% | −33,499−65.7% | Reduced |
| ADAR1 Capital Management, LLC | 15,021 | $101.4K | 0.03% | +8,021+114.6% | Added |
| Citigroup Inc | 13,256 | $89.5K | 0.00% | +6,756+103.9% | Added |
| Sherbrooke Park Advisers LLC | 11,915 | $80.4K | 0.02% | +11,915 | New |
| Virtus ETF Advisers LLC | 11,901 | $80.3K | 0.04% | −816−6.4% | Reduced |
| Raymond James & Associates | 11,364 | $76.7K | 0.00% | +842+8.0% | Added |
| EntryPoint Capital, LLC | 11,033 | $74.5K | 0.07% | −9,935−47.4% | Reduced |
| Verition Fund Management LLC | 10,849 | $73.2K | 0.00% | +10,849 | New |
| California State Teachers Retirement System | 7,301 | $49.3K | 0.00% | −15,445−67.9% | Reduced |
| Ameritas Investment Partners, Inc. | 7,243 | $48.9K | 0.00% | +3,921+118.0% | Added |
| Legal & General Group Plc | 6,661 | $44.9K | 0.00% | −23,985−78.3% | Reduced |
| Belvedere Trading LLC | 5,731 | $38.7K | 0.00% | +5,731 | New |
| US Bancorp | 5,277 | $35.6K | 0.00% | +5,277 | New |
| Metropolitan Life Insurance Co | 3,931 | $26.5K | 0.00% | +1,927+96.2% | Added |
| Royal Bank of Canada | 3,603 | $24.0K | 0.00% | −7,061−66.2% | Reduced |
| Quarry LP | 3,000 | $20.3K | 0.01% | +3,000 | New |
| Amalgamated Bank | 2,452 | $17.0K | 0.00% | −1,447−37.1% | Reduced |
| Cutler Group LP | 2,294 | $15.0K | 0.01% | −5,906−72.0% | Reduced |