AcelyrinSLRN

13F holders, Q1 2024 (March 31)
109holders
4famous investors
$6.75avg. 13F price*

At the end of Q1 2024, 109 institutions reported holding Acelyrin Inc. (SLRN) in their 13F filings. The largest holders were AyurMaya Capital Management Company, LP ($63.0M), FMR LLC ($47.8M) and Citadel Advisors ($47.4M). 4 famous investors held it, including Ken Griffin (0.0% of Citadel Advisors's portfolio), Israel Englander (0.0% of Millennium Management's portfolio) and Steve Cohen (0.0% of Point72 Asset Management's portfolio).

Company
Acelyrin Inc.
CUSIP
00445A100
Latest filing quarter
Q2 2025

History

Number of 13F holders

050100150 Q1 2024: 109Q1 2024Q2 2024: 113Q2 2024Q3 2024: 122Q3 2024Q4 2024: 125Q4 2024Q1 2025: 105Q1 2025Q2 2025: 2Q2 2025

Total Exit/New Position Q1 2024

InstitutionsTotal Value
New Positions25$62.7M
Exits26$46.0M

Ownership 109 holders

AyurMaya Capital Management Company, LP 100.00% No change 9,334,735 $63.0M
FMR LLC 0.00% Reduce -19.8% 7,079,210 $47.8M
Citadel Advisors 0.05% Add +8.6% 7,028,837 $47.4M
Vanguard Group Inc. 0.00% Add +1.3% 6,237,543 $42.1M
BlackRock Inc. 0.00% Add +64.8% 4,792,730 $32.4M
Millennium Management 0.02% New 4,013,528 $27.1M
Orbimed Advisors LLC 0.50% No change 4,001,711 $27.0M
venBio Partners LLC 9.23% No change 3,852,470 $26.0M
Adage Capital Partners Gp, L.L.C. 0.04% Add +1722.2% 3,280,000 $22.1M
Tybourne Capital Management (hk) Ltd. 3.35% No change 2,906,629 $19.6M
General Atlantic, L.P. 0.45% No change 2,889,668 $19.5M
Blue Owl Capital Holdings LP 3.81% Add +23.3% 2,826,028 $19.1M
JPMorgan Chase & Co. 0.00% Reduce -18.7% 2,591,804 $17.5M
Samsara Biocapital, LLC 2.63% No change 2,523,022 $17.0M
Artal Group S.A. 0.42% Reduce -20.8% 2,405,143 $16.2M
T. Rowe Price Investment Management, Inc. 0.01% New 2,119,591 $14.3M
Franklin Resources Inc. 0.00% Add +153.7% 2,044,121 $13.8M
Palo Alto Investors LP 1.31% New 1,715,180 $11.6M
Opaleye Management Inc. 2.34% Reduce -61.9% 1,580,000 $10.7M
Ikarian Capital, LLC 2.87% Reduce -21.4% 1,564,340 $10.6M
Geode Capital Management, LLC 0.00% Add +58.9% 1,229,995 $8.3M
State Street Corp. 0.00% Add +69.7% 1,128,320 $7.6M
Woodline Partners LP 0.06% Add +7.7% 1,021,204 $6.9M
RTW Investments, LP 0.10% No change 978,310 $6.6M
Venrock Adviser, LLC 0.30% No change 937,113 $6.3M
Eagle Asset Management Inc. 0.03% Add +163.8% 946,521 $6.3M
Barclays PLC 0.00% Add +1502.9% 793,170 $5.4M
Goldman Sachs Group Inc. 0.00% Reduce -32.4% 755,900 $5.1M
Stempoint Capital LP 1.29% Add +21.7% 714,773 $4.8M
Morgan Stanley 0.00% Reduce -24.5% 665,663 $4.5M
Marshall Wace, LLP 0.01% Reduce -32.5% 603,871 $4.1M
Jacobs Levy Equity Management, Inc. 0.02% New 586,746 $4.0M
Northern Trust Corp. 0.00% Add +78.7% 519,084 $3.5M
Kennedy Capital Management LLC 0.07% Add +2.6% 486,560 $3.3M
Kynam Capital Management, LP 0.30% Reduce -67.0% 396,379 $2.7M
Jane Street Group, LLC 0.00% Add +997.9% 369,196 $2.5M
Charles Schwab Investment Management Inc. 0.00% Add +37.6% 340,871 $2.3M
UBS Group AG 0.00% Add +13580.8% 251,043 $1.7M
Sectoral Asset Management Inc. 0.65% Reduce -25.1% 244,000 $1.6M
Point72 Asset Management 0.00% Reduce -49.8% 223,500 $1.5M
Polar Asset Management Partners Inc. 0.05% New 222,400 $1.5M
DAFNA Capital Management LLC 0.31% Reduce -45.4% 202,587 $1.4M
Nuveen Asset Management, LLC 0.00% Add +182.5% 191,457 $1.3M
Ameriprise Financial Inc. 0.00% Add +97.2% 190,703 $1.3M
Bank of New York Mellon Corp 0.00% Add +90.5% 182,337 $1.2M
Blair William & Co. 0.00% New 138,595 $936K
Renaissance Technologies 0.00% New 125,018 $844K
Lighthouse Investment Partners, LLC 0.05% Add +33.6% 115,808 $782K
Bank of America Corp. 0.00% Add +12.4% 93,573 $632K
Rhumbline Advisers 0.00% Add +91.2% 86,525 $584K
Susquehanna International Group, LLP 0.00% Add +222.9% 74,587 $503K
Dark Forest Capital Management LP 0.08% New 72,450 $489K
OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) 0.01% Add +19.0% 71,412 $482K
Alps Advisors Inc. 0.00% Add +6.2% 68,659 $463K
Alliancebernstein L.P. 0.00% Add +127.6% 56,730 $383K
Balyasny Asset Management L.P. 0.00% New 53,323 $360K
Prudential Financial Inc. 0.00% Reduce -39.7% 47,292 $319K
Boothbay Fund Management, LLC 0.01% Reduce -55.5% 44,643 $301K
Prelude Capital Management, LLC 0.02% Add +290.3% 41,007 $277K
ExodusPoint Capital Management, LP 0.00% New 40,381 $273K
STRS Ohio 0.00% Reduce -5.9% 39,800 $268K
MetLife Investment Management, LLC 0.00% Add +110.4% 38,201 $258K
Wells Fargo & Company 0.00% Add +90.0% 37,834 $255K
American International Group, Inc. 0.00% Add +117.3% 35,793 $242K
Ghisallo Capital Management LLC 0.03% Reduce -50.0% 35,000 $236K
Cubist Systematic Strategies, LLC 0.00% Reduce -78.1% 34,881 $235K
Deutsche Bank AG 0.00% Add +129.3% 33,279 $225K
New York State Common Retirement Fund 0.00% Add +146.0% 32,429 $219K
Capstone Investment Advisors, LLC 0.01% Add +15.2% 31,506 $213K
Public Employees Retirement System of Ohio 0.00% New 28,418 $192K
Shay Capital LLC 0.05% New 27,227 $184K
Russell Investments Group, Ltd. 0.00% New 27,108 $183K
Invesco Ltd. 0.00% Add +28.1% 26,073 $176K
Manufacturers Life Insurance Company, The 0.00% Add +14.5% 25,606 $173K
Voya Investment Management LLC 0.00% Add +69.5% 22,762 $154K
Virtu Financial LLC 0.01% New 21,834 $147K
T. Rowe Price Associates Inc. 0.00% New 20,703 $140K
ProShare Advisors LLC 0.00% Add +69.9% 19,871 $134K
Ausdal Financial Partners, Inc. 0.02% Reduce -4.9% 19,300 $130K
China Universal Asset Management Co., Ltd. 0.02% Add +66.3% 18,718 $126K
Simplex Trading, LLC 0.00% New 18,429 $124K
Arrowstreet Capital, Limited Partnership 0.00% New 17,821 $120K
Landscape Capital Management, L.L.C. 0.01% Reduce -65.7% 17,517 $118K
ADAR1 Capital Management, LLC 0.03% Add +114.6% 15,021 $101K
Citigroup Inc. 0.00% Add +103.9% 13,256 $89K
Sherbrooke Park Advisers LLC 0.02% New 11,915 $80K
Virtus Advisers, LLC 0.04% Reduce -6.4% 11,901 $80K
Raymond James & Associates 0.00% Add +8.0% 11,364 $77K
EntryPoint Capital, LLC 0.07% Reduce -47.4% 11,033 $74K
Verition Fund Management LLC 0.00% New 10,849 $73K
California State Teachers Retirement System 0.00% Reduce -67.9% 7,301 $49K
Ameritas Investment Partners, Inc. 0.00% Add +118.0% 7,243 $49K
Legal & General Group Plc 0.00% Reduce -78.3% 6,661 $45K
Belvedere Trading LLC 0.00% New 5,731 $39K
US Bancorp \de 0.00% New 5,277 $36K
Metropolitan Life Insurance Co 0.00% Add +96.2% 3,931 $27K
Royal Bank of Canada 0.00% Reduce -66.2% 3,603 $24K
Quarry LP 0.01% New 3,000 $20K
Amalgamated Bank 0.00% Reduce -37.1% 2,452 $17K
Cutler Group LLC / CA 0.01% Reduce -72.0% 2,294 $15K
GAMMA Investing LLC 0.00% Add +289.7% 678 $5K
Daiwa Securities Group Inc. 0.00% No change 398 $3K
Tower Research Capital LLC (TRC) 0.00% Reduce -98.8% 346 $2K
Lindbrook Capital, LLC 0.00% No change 170 $1K
Cwm, LLC 0.00% Add +1584.6% 219 $1K
Comerica Bank 0.00% New 53 $357
Nisa Investment Advisors, LLC 0.00% New 24 $162
Institutional & Family Asset Management, LLC 0.00% No change 16 $108
Avior Wealth Management, LLC 0.00% New 7 $47

"% of holder's portfolio" is SLRN's weight in each manager's 13F, not the share of Acelyrin Inc. the manager owns.