ALMS · Alumis Inc.

$22.38 -0.83 (-3.58%) At close · Aug 28

Russell 2000 member Rebalance outlook locked

Market Cap

$2.90B

129.44M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Quarter:

Holders: 203

Total Value: $3,355,277,104

Total Shares: 119,235,182

Showing 1–100 of 211 holdings by value · page 1 of 3

Institutional Ownership Trend

9 quarters

Holder Concentration

Across 203 13F filers · Δ vs Mar 31, 2026

Top Holder

12.7%

−0.4 pts

Top 5

35.9%

+0.2 pts

Top 10

56.1%

+2.9 pts

HHI

439

Broadly held+17

Quarterly Activity

vs Mar 31, 2026

New

Increased

Decreased

Sold Out

Unchanged

Holder count: +3

Institutional value: +31.5%

Shares held: +2.9%

Top Buyers

vs Mar 31, 2026

Institution	Added	Now Holds
Mega FMR LLC	+5,795,388	6,769,170
Mega PRICE T ROWE ASSOCIATES INC /MD/	+1,913,085	5,199,838
Mega BlackRock, Inc.	+1,047,283	8,218,151
Mega D. E. Shaw & Co., Inc.	+396,105	968,234
Mega STATE STREET CORP	+385,454	2,187,266

Top Sellers

vs Mar 31, 2026

Institution	Sold	Now Holds
Mega UBS Group AG	−2,103,069	951,796
Large MARSHALL WACE, LLP	−804,735	368,014
Mid Weiss Asset Management LP	−786,046	311,371
Mid Cormorant Asset Management, LP	−663,645	3,285,596
Small Yu Fan	−524,173	252,672

Top New Positions

vs Mar 31, 2026

Institution	Acquired	Value (USD)
Mega Jupiter Topco LLC	2,355,122	$66,273,133
Mid NOVO HOLDINGS A/S	1,100,000	$30,954,000
Large Woodline Partners LP	486,052	$13,677,503
Large NOMURA ASSET MANAGEMENT INTERNATIONAL INC.	134,850	$3,794,679
Large FRED ALGER MANAGEMENT, LLC	43,057	$1,211,623

Top Sold-Out Positions

vs Mar 31, 2026

Institution	Previously Held	Last Value (USD)
Mega JANUS HENDERSON GROUP PLC	2,124,408	$46,800,708
Large ExodusPoint Capital Management, LP	266,243	$5,865,333
Large Hudson Bay Capital Management LP	193,395	$4,260,491
Mid Burkehill Global Management, LP	165,000	$3,634,950
Large TUDOR INVESTMENT CORP ET AL	106,376	$2,343,463

Filter: New 30 Increased 76 Reduced 64 Sold out 27 Unchanged 33

Showing 100 of 211

All Common Calls Puts

Compact Export CSV

Holder

Value (USD)

% of 13F

AyurMaya Capital Management Company, LP

$426,031,354

12.70%

15,139,707

BlackRock, Inc.

$231,258,762

6.89%

8,218,151

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BLACKROCK FINANCIAL MANAGEMENT INC/DE	170,037	$4,784,841	2.1%	Sole
BlackRock Investment Management (Australia) Ltd	223	$6,275	0.0%	Sole
BlackRock Asset Management Canada Ltd	20,640	$580,809	0.3%	Sole
BlackRock Investment Management, LLC	237,847	$6,693,014	2.9%	Sole
BLACKROCK ADVISORS LLC	624,055	$17,560,907	7.6%	Sole
BlackRock Fund Advisors	3,869,069	$108,875,601	47.1%	Sole
BlackRock Institutional Trust Company, N.A.	2,493,325	$70,162,165	30.3%	Sole
BlackRock Fund Managers Ltd.	11,205	$315,308	0.1%	Sole
BlackRock Investment Management (UK) Ltd.	58,122	$1,635,553	0.7%	Sole
BlackRock (Netherlands) B.V.	4,548	$127,980	0.1%	Sole
BlackRock Asset Management Ireland Ltd	281,896	$7,932,553	3.4%	Sole
BlackRock (Luxembourg) S.A.	356,295	$10,026,141	4.3%	Sole
BlackRock Asset Management Schweiz AG	10,791	$303,658	0.1%	Sole
Aperio Group, LLC	80,098	$2,253,957	1.0%	Sole

FMR LLC

$190,484,440

5.68%

6,769,170

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Fidelity Management & Research Co LLC joint	5,949,427	$167,416,874	87.9%	Defined
STRATEGIC ADVISERS LLC	127	$3,573	0.0%	Defined
Fidelity Institutional Asset Management Trust Co	470,071	$13,227,797	6.9%	Defined
FIAM LLC	349,545	$9,836,196	5.2%	Defined

Deep Track Capital, LP

$178,648,422

5.32%

6,348,558

SAMSARA BIOCAPITAL, LLC

$178,554,462

5.32%

6,345,219

Foresite Capital Management V, LLC

$165,941,439

4.95%

5,896,995

PRICE T ROWE ASSOCIATES INC /MD/

$146,323,440

4.36%

5,199,838

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
T. Rowe Price International Ltd	115,040	$3,237,225	2.2%	Defined
Held directly	5,084,798	$143,086,215	97.8%	Sole

venBio Partners LLC

$127,429,401

3.80%

4,528,408

Foresite Capital Management VI LLC

$119,529,433

3.56%

4,247,670

VANGUARD CAPITAL MANAGEMENT LLC

$118,629,882

3.54%

4,215,703

Nextech Invest, Ltd.

$99,643,683

2.97%

3,540,998

Cormorant Asset Management, LP

$92,456,671

2.76%

3,285,596

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Chen Bihua	3,285,596	$92,456,671	100.0%	Defined

Saturn V Capital Management LP

$82,040,566

2.45%

2,915,443

Octagon Capital Advisors LP

$79,655,898

2.37%

2,830,700

Jupiter Topco LLC

$66,273,133

1.98%

2,355,122

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
JANUS HENDERSON INVESTORS UK Ltd	29,000	$816,060	1.2%	Defined
JANUS HENDERSON INVESTORS US LLC	2,326,122	$65,457,073	98.8%	Defined

STATE STREET CORP

$61,549,665

1.83%

2,187,266

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
STATE STREET GLOBAL ADVISORS EUROPE LIMITED joint	2,187,266	$61,549,665	100.0%	Defined

GEODE CAPITAL MANAGEMENT, LLC

$61,022,067

1.82%

2,168,517

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
GEODE CAPITAL MANAGEMENT TRUST COMPANY, LLC	305,992	$8,610,614	14.1%	Defined
Held directly	1,862,525	$52,411,453	85.9%	Defined

MPM BIOIMPACT LLC

$56,815,222

1.69%

2,019,020

BAKER BROS. ADVISORS LP

$56,631,750

1.69%

2,012,500

SR One Capital Management, LP

$55,151,473

1.64%

1,959,896

Invesco Ltd.

$33,022,794

0.98%

1,173,518

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Invesco Advisers, Inc. joint	1,036,357	$29,163,084	88.3%	Defined
Invesco Trust Co joint	31,366	$882,639	2.7%	Defined
Invesco Capital Management LLC	105,795	$2,977,071	9.0%	Defined

NOVO HOLDINGS A/S

$30,954,000

0.92%

1,100,000

PRINCIPAL FINANCIAL GROUP INC

$30,055,207

0.90%

1,068,060

JPMORGAN CHASE & CO

$27,285,021

0.81%

969,617

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
JPMorgan Chase Bank, N.A.	45,425	$1,278,259	4.7%	Defined
J.P. Morgan Investment Management Inc.	216,591	$6,094,870	22.3%	Defined
J.P. Morgan Securities plc	8,972	$252,472	0.9%	Defined
JPMorgan Asset Management (UK) Ltd	698,629	$19,659,420	72.1%	Defined

D. E. Shaw & Co., Inc.

$27,246,104

0.81%

968,234

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
D. E. SHAW & CO, L.P.	968,234	$27,246,104	100.0%	Defined

UBS Group AG

$26,783,538

0.80%

951,796

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
UBS Financial Services Inc	406	$11,424	0.0%	Defined
UBS AG	946,390	$26,631,414	99.4%	Defined
UBS Switzerland AG	5,000	$140,700	0.5%	Defined

VANGUARD PORTFOLIO MANAGEMENT LLC

$25,922,877

0.77%

921,211

Ikarian Capital, LLC

$24,497,220

0.73%

870,548

GREAT POINT PARTNERS LLC

$24,089,556

0.72%

856,061

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
JAY JEFFREY R joint	856,061	$24,089,556	100.0%	Defined

GOLDMAN SACHS GROUP INC

$23,409,581

0.70%

831,897

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
GOLDMAN SACHS & CO. LLC	539,189	$15,172,778	64.8%	Defined
GOLDMAN SACHS ASSET MANAGEMENT, L.P.	292,708	$8,236,803	35.2%	Defined

NORTHERN TRUST CORP

$20,369,108

0.61%

723,849

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
NORTHERN TRUST CO joint	694,015	$19,529,581	95.9%	Defined
NORTHERN TRUST GLOBAL INVESTMENTS LTD	17,620	$495,826	2.4%	Defined
DWS INVESTMENT MANAGEMENT AMERICAS, INC joint	12,214	$343,701	1.7%	Other

CHARLES SCHWAB INVESTMENT MANAGEMENT INC

$19,701,770

0.59%

700,134

Integral Health Asset Management, LLC

$19,698,000

0.59%

700,000

MILLENNIUM MANAGEMENT LLC

$18,576,395

0.55%

660,142

VANGUARD FIDUCIARY TRUST CO

$17,221,961

0.51%

612,010

Opaleye Management Inc.

$15,477,000

0.46%

550,000

ORBIMED ADVISORS LLC

$15,425,306

0.46%

548,163

ROYCE & ASSOCIATES LP

$14,782,026

0.44%

525,303

Woodline Partners LP

$13,677,503

0.41%

486,052

Spruce Street Capital LP

$11,047,032

0.33%

392,574

Trium Capital LLP

$10,982,141

0.33%

390,268

CITIGROUP INC

$10,845,155

0.32%

385,400

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citigroup Financial Products Inc. joint	385,400	$10,845,155	100.0%	Defined

TWO SIGMA INVESTMENTS, LP

$10,583,988

0.32%

376,119

MARSHALL WACE, LLP

$10,355,913

0.31%

368,014

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Marshall Wace North America L.P. joint	368,014	$10,355,913	100.0%	Other

Ikarian Capital, LLC

$10,026,282

0.30%

356,300

MORGAN STANLEY

$9,037,523

0.27%

321,163

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
MORGAN STANLEY & CO INTERNATIONAL PLC	3,334	$93,818	1.0%	Defined
MORGAN STANLEY & CO. LLC	32,007	$900,676	10.0%	Defined
MORGAN STANLEY CAPITAL SERVICES, LLC	241,396	$6,792,883	75.2%	Defined
MORGAN STANLEY SMITH BARNEY LLC	19,111	$537,783	6.0%	Defined
PARAMETRIC PORTFOLIO ASSOCIATES LLC	25,315	$712,363	7.9%	Defined

VOLORIDGE INVESTMENT MANAGEMENT, LLC

$9,029,028

0.27%

320,861

Weiss Asset Management LP

$8,761,979

0.26%

311,371

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
WEISS ANDREW M joint	311,371	$8,761,979	100.0%	Defined

Artia Global Partners LP

$7,838,284

0.23%

278,546

BARCLAYS PLC

$7,702,366

0.23%

273,716

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BARCLAYS BANK PLC	92,264	$2,596,308	33.7%	Defined
BARCLAYS CAPITAL INC.	178,820	$5,031,994	65.3%	Defined
BARCLAYS CAPITAL SECURITIES LTD	2,632	$74,064	1.0%	Defined

Yu Fan

$7,110,190

0.21%

252,672

Nuveen, LLC

$6,862,556

0.20%

243,872

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Nuveen Asset Management, LLC joint	8,270	$232,717	3.4%	Defined
TIAA CREF INVESTMENT MANAGEMENT LLC joint	1,828	$51,439	0.7%	Defined
TEACHERS ADVISORS, LLC joint	233,774	$6,578,400	95.9%	Defined

BOOTHBAY FUND MANAGEMENT, LLC

$6,825,019

0.20%

242,538

Omega Fund Management, LLC

$6,788,915

0.20%

241,255

SCHRODER INVESTMENT MANAGEMENT GROUP

$6,664,705

0.20%

236,841

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Schroder Investment Management Limited	236,323	$6,650,129	99.8%	Sole
Schroder Investment Management North America Inc.	518	$14,576	0.2%	Sole

Bank of New York Mellon Corp

$6,377,029

0.19%

226,618

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Mellon Investments Corporation joint	73,638	$2,072,172	32.5%	Defined
The Bank of New York Mellon	147,579	$4,152,873	65.1%	Defined
BNY Mellon, NA joint	5,400	$151,956	2.4%	Defined
Held directly	1	$28	0.0%	Defined

TOWERVIEW LLC

$6,255,353

0.19%

222,294

BANK OF AMERICA CORP /DE/

$5,847,182

0.17%

207,789

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BANK OF AMERICA NA	192,224	$5,409,183	92.5%	Defined
BOFA SECURITIES, INC.	15,565	$437,999	7.5%	Defined

Exome Asset Management LLC

$5,752,322

0.17%

204,418

DIADEMA PARTNERS LP

$5,628,000

0.17%

200,000

HighVista Strategies LLC

$5,627,099

0.17%

199,968

WELLINGTON MANAGEMENT GROUP LLP

$5,059,626

0.15%

179,802

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Wellington Management Company LLP	61,324	$1,725,657	34.1%	Defined
Wellington Managment Canada LLC	729	$20,514	0.4%	Defined
Wellington Trust Company, NA joint	107,138	$3,014,863	59.6%	Defined
Wellington Management Australia Pty Ltd	8,941	$251,599	5.0%	Defined
Wellington Management Europe GmbH	1,670	$46,993	0.9%	Defined

WELLS FARGO & COMPANY/MN

$4,922,023

0.15%

174,912

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
WELLS FARGO BANK N A	111,776	$3,145,376	63.9%	Defined
WELLS FARGO ADVISORS FINANCIAL NETWORK, LLC	29,000	$816,060	16.6%	Defined
WELLS FARGO CLEARING SERVICES, LLC	34,136	$960,587	19.5%	Defined

Susquehanna Portfolio Strategies, LLC

$4,862,001

0.14%

172,779

PRUDENTIAL FINANCIAL INC

$4,575,085

0.14%

162,583

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
PGIM Quantitative Solutions LLC	123,483	$3,474,811	76.0%	Defined
Prudential Trust Co	39,100	$1,100,274	24.0%	Defined

Russell Investments Group, Ltd.

$4,330,912

0.13%

153,906

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Russell Investment Management, LLC	86,422	$2,431,914	56.2%	Defined
Russell Investments Capital, LLC	33,721	$948,908	21.9%	Defined
Russell Investments France SAS	10,731	$301,970	7.0%	Defined
Russell Investments Trust Company	23,032	$648,120	15.0%	Defined

Ensign Peak Advisors, Inc

$4,135,735

0.12%

146,970

AQR CAPITAL MANAGEMENT LLC

$4,120,735

0.12%

146,437

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
RF&L WEALTH MANAGEMENT, LLC	10	$281	0.0%	Other
Compound Planning, Inc.	8	$225	0.0%	Other
Arax Advisory Partners	5,628	$158,371	3.8%	Other
HALBERT HARGROVE GLOBAL ADVISORS, LLC	908	$25,551	0.6%	Other
Stokes Family Office, LLC	673	$18,938	0.5%	Other
Held directly	139,210	$3,917,369	95.1%	Defined

VOYA INVESTMENT MANAGEMENT LLC

$3,895,082

0.12%

138,418

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Voya Investment Management Co. LLC joint	138,418	$3,895,082	100.0%	Defined

MOORE CAPITAL MANAGEMENT, LP

$3,849,636

0.11%

136,803

Swiss National Bank

$3,824,226

0.11%

135,900

STEMPOINT CAPITAL LP

$3,819,611

0.11%

135,736

NOMURA ASSET MANAGEMENT INTERNATIONAL INC.

$3,794,679

0.11%

134,850

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
NOMURA HOLDINGS INC joint	134,850	$3,794,679	100.0%	Defined

VICTORY CAPITAL MANAGEMENT INC

$3,723,794

0.11%

132,331

Quantinno Capital Management LP

$3,688,928

0.11%

131,092

Elmind Capital, LP

$3,658,200

0.11%

130,000

UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC

$3,155,308

0.09%

112,129

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
UBS Group AG	574	$16,152	0.5%	Defined
UBS Asset Management Switzerland AG	94,964	$2,672,286	84.7%	Defined
Held directly	16,591	$466,870	14.8%	Defined

STIFEL FINANCIAL CORP

$3,097,510

0.09%

110,075

BOOTHBAY FUND MANAGEMENT, LLC

$2,943,444

0.09%

104,600

ALLIANCEBERNSTEIN L.P.

$2,937,647

0.09%

104,394

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Equitable Holdings, Inc.	104,394	$2,937,647	100.0%	Defined

MANUFACTURERS LIFE INSURANCE COMPANY, THE

$2,820,050

0.08%

100,215

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
MANULIFE FINANCIAL CORP joint	100,215	$2,820,050	100.0%	Defined

Caption Management, LLC

$2,814,000

0.08%

100,000

Ghisallo Capital Management LLC

$2,814,000

0.08%

100,000

TD Asset Management Inc

$2,729,636

0.08%

97,002

RHUMBLINE ADVISERS

$2,723,023

0.08%

96,767

FIRST TRUST ADVISORS LP

$2,646,454

0.08%

94,046

Harvest Investment Services, LLC

$2,610,407

0.08%

92,765

Caption Management, LLC

$2,532,600

0.08%

90,000

SUSQUEHANNA INTERNATIONAL GROUP, LLP

$2,490,390

0.07%

88,500

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SUSQUEHANNA SECURITIES, LLC	88,500	$2,490,390	100.0%	Other

DEUTSCHE BANK AG\

$2,366,939

0.07%

84,113

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
DWS INVESTMENT MANAGEMENT AMERICAS, INC	1,489	$41,900	1.8%	Defined
DWS Investments UK Ltd	82,624	$2,325,039	98.2%	Defined

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM

$2,217,938

0.07%

78,818

Ally Bridge Group (NY) LLC

$2,151,556

0.06%

76,459

SUSQUEHANNA INTERNATIONAL GROUP, LLP

$2,040,150

0.06%

72,500

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SUSQUEHANNA SECURITIES, LLC	72,500	$2,040,150	100.0%	Other

Mariner, LLC

$2,018,369

0.06%

71,726

SUSQUEHANNA INTERNATIONAL GROUP, LLP

$1,652,296

0.05%

58,717

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SUSQUEHANNA SECURITIES, LLC	58,717	$1,652,296	100.0%	Other

ALGERT GLOBAL LLC

$1,625,647

0.05%

57,770

CITADEL ADVISORS LLC

$1,581,468

0.05%

56,200

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citadel Securities GP LLC	56,200	$1,581,468	100.0%	Defined

Legal & General Group Plc

$1,545,728

0.05%

54,930

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Legal & General Investment Management America Inc	7,669	$215,805	14.0%	Defined
Legal & General Investment Management Ltd joint	47,261	$1,329,923	86.0%	Defined

ACT CAPITAL MANAGEMENT, LLC

$1,452,024

0.04%

51,600

VANGUARD ASSET MANAGEMENT, Ltd

$1,424,306

0.04%

50,615

Key facts CIK 1847367 CUSIP 022307102 13F (30d) 177 filings 175 filers Visit website Investor relations