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, Q3 2024
Institutional positions in ACELYRIN, Inc. as of Sep 30, 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
- 122
- +11 vs. Q2 2024
- Shares held
- 87.2M
- +5.66M (+6.9%) vs. Q2 2024
- Total value
- $430.2M
- +$70.4M (+19.6%) vs. Q2 2024
- New holders
- 23
- 43 more added
- Sold out
- 12
- 35 more reduced
2 institutions that held it in Q2 2024 haven't filed for Q3 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2024: 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, Q3 2024
Shares, value and share of portfolio for each institution holding ACELYRIN, Inc.; share changes are against Q2 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| T. Rowe Price Investment Management, Inc. | 10,431,846 | $51.4M | 0.03% | +7,079,539+211.2% | Added |
| AyurMaya Capital Management Company, LP | 9,334,735 | $46.0M | 28.81% | 00.0% | Unchanged |
| Citadel Advisors LLC | 6,523,306 | $32.2M | 0.03% | −887,258−12.0% | Reduced |
| BlackRock, Inc. | 5,982,374 | $29.5M | 0.00% | +5,982,374 | New |
| Millennium Management LLC | 5,487,172 | $27.1M | 0.02% | +845,116+18.2% | Added |
| Vanguard Group Inc | 4,066,989 | $20.1M | 0.00% | −676,412−14.3% | Reduced |
| OrbiMed Advisors LLC | 4,001,711 | $19.7M | 0.36% | 00.0% | Unchanged |
| venBio Partners LLC | 3,852,470 | $19.0M | 9.77% | 00.0% | Unchanged |
| Tybourne Capital Management (HK) Ltd | 2,906,629 | $14.3M | 4.02% | 00.0% | Unchanged |
| General Atlantic LLC | 2,889,668 | $14.2M | 0.41% | 00.0% | Unchanged |
| Blue Owl Capital Holdings LP | 2,793,946 | $13.8M | 2.67% | −132,082−4.5% | Reduced |
| Samsara BioCapital, LLC | 2,523,022 | $12.4M | 2.39% | 00.0% | Unchanged |
| Opaleye Management Inc. | 1,893,660 | $9.34M | 1.56% | +313,660+19.9% | Added |
| Palo Alto Investors LP | 1,792,895 | $8.84M | 1.15% | +77,715+4.5% | Added |
| Morgan Stanley | 1,786,453 | $8.81M | 0.00% | +533,637+42.6% | Added |
| Siren, L.L.C. | 1,729,665 | $8.53M | 0.43% | +1,729,665 | New |
| Geode Capital Management, LLC | 1,651,614 | $8.14M | 0.00% | +388,631+30.8% | Added |
| Jacobs Levy Equity Management, Inc | 1,326,391 | $6.54M | 0.03% | −153,465−10.4% | Reduced |
| StemPoint Capital LP | 1,317,854 | $6.50M | 1.95% | +1,317,854 | New |
| State Street Corp | 1,273,096 | $6.28M | 0.00% | +116,094+10.0% | Added |
| RTW Investments, LP | 978,310 | $4.82M | 0.07% | 00.0% | Unchanged |
| JPMorgan Chase & Co | 850,661 | $4.19M | 0.00% | −1,747,642−67.3% | Reduced |
| Kynam Capital Management, LP | 847,366 | $4.18M | 0.32% | +16,056+1.9% | Added |
| Ikarian Capital, LLC | 677,074 | $3.34M | 1.04% | −798,000−54.1% | Reduced |
| Charles Schwab Investment Management Inc | 609,678 | $3.01M | 0.00% | +273,604+81.4% | Added |
| Northern Trust Corp | 606,921 | $2.99M | 0.00% | +103,469+20.6% | Added |
| DAFNA Capital Management LLC | 602,894 | $2.97M | 0.70% | −90,715−13.1% | Reduced |
| Marshall Wace, LLP | 572,048 | $2.82M | 0.00% | −31,823−5.3% | Reduced |
| Adage Capital Partners GP, L.L.C. | 545,476 | $2.69M | 0.00% | −854,524−61.0% | Reduced |
| Renaissance Technologies LLC | 534,818 | $2.64M | 0.00% | +137,200+34.5% | Added |
| Goldman Sachs Group Inc | 521,922 | $2.57M | 0.00% | −277,710−34.7% | Reduced |
| Kennedy Capital Management, Inc. | 452,770 | $2.23M | 0.05% | −69,489−13.3% | Reduced |
| Acuta Capital Partners, LLC | 364,000 | $1.79M | 1.45% | +364,000 | New |
| Woodline Partners LP | 357,094 | $1.76M | 0.01% | −1,627,716−82.0% | Reduced |
| Point72 Asset Management, L.P. | 250,300 | $1.23M | 0.00% | +212,758+566.7% | Added |
| Ameriprise Financial Inc | 236,662 | $1.17M | 0.00% | −21,133−8.2% | Reduced |
| Nuveen Asset Management, LLC | 202,239 | $997.0K | 0.00% | +10,782+5.6% | Added |
| Hudson Bay Capital Management LP | 200,000 | $986.0K | 0.01% | +200,000 | New |
| Acadian Asset Management LLC | 192,717 | $948.0K | 0.00% | +58,533+43.6% | Added |
| Bank of America Corp | 178,670 | $880.8K | 0.00% | +123,536+224.1% | Added |
| Bank of New York Mellon Corp | 176,215 | $868.7K | 0.00% | −47,180−21.1% | Reduced |
| TD Asset Management Inc | 174,380 | $859.7K | 0.00% | +174,380 | New |
| UBS Oconnor LLC | 163,724 | $807.2K | 0.02% | +82,312+101.1% | Added |
| Bank of Montreal | 148,635 | $732.8K | 0.00% | +148,635 | New |
| Franklin Resources Inc | 128,591 | $716.3K | 0.00% | +34,642+36.9% | Added |
| Los Angeles Capital Management LLC | 142,693 | $703.5K | 0.00% | −14,400−9.2% | Reduced |
| Blair William & Co | 138,595 | $683.3K | 0.00% | 00.0% | Unchanged |
| FMR LLC | 117,748 | $580.5K | 0.00% | −4,596,424−97.5% | Reduced |
| Verition Fund Management LLC | 110,115 | $542.9K | 0.00% | +39,100+55.1% | Added |
| Rhumbline Advisers | 106,381 | $524.5K | 0.00% | −2,003−1.8% | Reduced |
| Public Employees Retirement System of Ohio | 102,347 | $504.6K | 0.00% | +36,154+54.6% | Added |
| Martingale Asset Management L P | 98,284 | $484.5K | 0.01% | +98,284 | New |
| Barclays PLC | 96,408 | $475.3K | 0.00% | +65,188+208.8% | Added |
| HRT Financial LP | 94,805 | $467.0K | 0.00% | +11,977+14.5% | Added |
| Artia Global Partners LP | 93,114 | $459.1K | 0.13% | +93,114 | New |
| Jane Street Group, LLC | 89,800 | $442.7K | 0.00% | −114,237−56.0% | Reduced |
| Squarepoint Ops LLC | 83,345 | $410.9K | 0.00% | +5,322+6.8% | Added |
| Two Sigma Advisers, LP | 82,100 | $404.8K | 0.00% | −118,300−59.0% | Reduced |
| PDT Partners, LLC | 80,544 | $397.1K | 0.04% | −23,309−22.4% | Reduced |
| Shay Capital LLC | 78,500 | $387.0K | 0.11% | +24,000+44.0% | Added |
| Alps Advisors Inc | 77,246 | $380.8K | 0.00% | −40.0% | Reduced |
| Prudential Financial Inc | 76,730 | $378.3K | 0.00% | +15,300+24.9% | Added |
| Russell Investments Group, Ltd. | 76,040 | $374.9K | 0.00% | −6,833−8.2% | Reduced |
| Alliancebernstein L.P. | 73,670 | $363.2K | 0.00% | 00.0% | Unchanged |
| Polar Asset Management Partners Inc. | 71,700 | $353.5K | 0.01% | −150,700−67.8% | Reduced |
| Algert Global LLC | 64,830 | $319.6K | 0.01% | +64,830 | New |
| Citigroup Inc | 54,932 | $270.8K | 0.00% | +23,048+72.3% | Added |
| ADAR1 Capital Management, LLC | 53,500 | $263.8K | 0.04% | +2,979+5.9% | Added |
| Tudor Investment Corp Et Al | 48,391 | $238.6K | 0.00% | +48,391 | New |
| Deutsche Bank AG | 45,644 | $225.0K | 0.00% | +12,570+38.0% | Added |
| STRS Ohio | 44,300 | $218.4K | 0.00% | 00.0% | Unchanged |
| Balyasny Asset Management LLC | 43,868 | $216.3K | 0.00% | +7,491+20.6% | Added |
| MetLife Investment Management | 42,852 | $211.3K | 0.00% | 00.0% | Unchanged |
| Wells Fargo & Company | 42,682 | $210.4K | 0.00% | +8,439+24.6% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 40,084 | $197.6K | 0.00% | +2,663+7.1% | Added |
| Corebridge Financial, Inc. | 39,028 | $192.4K | 0.00% | −241−0.6% | Reduced |
| UBS Group AG | 38,806 | $191.3K | 0.00% | +8,821+29.4% | Added |
| Thrivent Financial for Lutherans | 37,341 | $184.0K | 0.00% | 00.0% | Unchanged |
| Virtus Investment Advisers, Inc. | 35,700 | $176.0K | 0.14% | +35,700 | New |
| AJOVista, LLC | 35,084 | $173.0K | 0.74% | +35,084 | New |
| American Century Companies Inc | 32,066 | $158.1K | 0.00% | +32,066 | New |
| Prelude Capital Management, LLC | 29,426 | $145.1K | 0.01% | −27,881−48.7% | Reduced |
| Manufacturers Life Insurance Company, The | 28,805 | $142.0K | 0.00% | −964−3.2% | Reduced |
| Susquehanna International Group, LLP | 28,136 | $138.7K | 0.00% | −4,344−13.4% | Reduced |
| SG Americas Securities, LLC | 26,755 | $132.0K | 0.00% | +15,101+129.6% | Added |
| Voya Investment Management LLC | 25,023 | $123.4K | 0.00% | +70.0% | Added |
| Almitas Capital LLC | 24,519 | $120.9K | 0.04% | −351,597−93.5% | Reduced |
| Price T Rowe Associates Inc | 23,472 | $116.0K | 0.00% | +528+2.3% | Added |
| Invesco Ltd. | 22,989 | $113.3K | 0.00% | −1,128−4.7% | Reduced |
| New York State Common Retirement Fund | 22,817 | $112.5K | 0.00% | −14,600−39.0% | Reduced |
| Virtus ETF Advisers LLC | 21,138 | $104.2K | 0.05% | +375+1.8% | Added |
| ProShare Advisors LLC | 19,690 | $97.1K | 0.00% | +3,849+24.3% | Added |
| Ausdal Financial Partners, Inc. | 19,300 | $95.1K | 0.01% | 00.0% | Unchanged |
| Boothbay Fund Management, LLC | 19,274 | $95.0K | 0.00% | −22,712−54.1% | Reduced |
| Cubist Systematic Strategies, LLC | 19,252 | $94.9K | 0.00% | −70,770−78.6% | Reduced |
| China Universal Asset Management Co., Ltd. | 19,196 | $94.6K | 0.01% | +7,560+65.0% | Added |
| Simplex Trading, LLC | 19,200 | $94.0K | 0.00% | +19,200 | New |
| US Bancorp | 16,854 | $83.1K | 0.00% | +7,336+77.1% | Added |
| Group One Trading, L.P. | 15,619 | $77.0K | 0.00% | +15,619 | New |
| Intech Investment Management LLC | 15,547 | $76.6K | 0.00% | +15,547 | New |