Alumis ALMS Institutional Ownership

NASDAQ ALMS

$7.39 +0.10 (+1.37%)

At close: Sep 30, 2026 · 4:00 PM EDT

Institutions by Trading Activity

199 Institutions

Increased 106 53.3%

Unchanged 32 16.1%

Reduced 61 30.7%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

93.05%

▼-41.79 pp QoQ

Shares Held by Institutions

118.82Mn

of 127.70Mn outstanding

▲+7.49% QoQ

Shares Outstanding

127.70Mn

8.87Mn held outside 13F filers

Institutional Investors

199

filed 13F for Jun 2026

▲+2 vs prior quarter

Net Shares Added (QoQ)

+8.28Mn

accumulated since last quarter

Value of Holdings

$878.11Mn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Quarter ending 30 Jun, 2026

Alumis Inc. (NASDAQ:ALMS) has 199 institutional investors that have filed 13F reports for the period ending June 2026.

They owned 93.1% of outstanding stock in June 2026, down from 134.8% the prior quarter.
Their total shares held in ALMS increased 7.49% quarter over quarter, and separately, investors owning Alumis increased 79.28% from a year ago.
Activity in ALMS broke down as 106 buyers, 61 sellers, and 32 unchanged among 199 total holders.
In total, institutional investors held 118.82Mn shares in Alumis as of June 2026, up by 8.28Mn shares quarter on quarter, and up 40.94Mn shares year over year.
AyurMaya Capital Management Company, LP holds the largest position in ALMS at 15.14Mn shares as of June 30, 2026, or 11.86% of shares outstanding.
The most significant purchases of ALMS for the quarter ending June 2026 came from FMR LLC (5.8Mn), Jupiter Topco LLC (2.36Mn), PRICE T ROWE ASSOCIATES INC /MD/ (1.91Mn), Novo Holdings A/S (1.1Mn), BlackRock, Inc. (1.05Mn).
The largest sales of ALMS for the quarter ending June 2026 came from UBS Group AG (2.1Mn), MARSHALL WACE, LLP (804.74K), Weiss Asset Management LP (786.05K), Cormorant Asset Management, LP (663.64K), Yu Fan (524.17K).
Per Business Quant data, the top 10 holders of Alumis for the quarter ending June 2026 are AyurMaya Capital Management Company, LP (15.14Mn), BlackRock, Inc. (8.22Mn), FMR LLC (6.77Mn), Deep Track Capital, LP (6.35Mn), Samsara BioCapital, LLC (6.35Mn), Foresite Capital Management V, LLC (5.9Mn), PRICE T ROWE ASSOCIATES INC /MD/ (5.2Mn), venBio Partners LLC (4.53Mn), Foresite Capital Management VI LLC (4.25Mn), VANGUARD CAPITAL MANAGEMENT LLC (4.22Mn).

Form 13F Holdings

199 Institutional Holders

Report period 30 Jun, 2026

Total shares held 118.82Mn

Of outstanding 93.05%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	AyurMaya Capital Management Company, LP	0001975990	15,139,707	11.86%	0	0.00%	$426.03Mn
2	BlackRock, Inc.	0002012383	8,218,151	6.44%	▲1,047,283	+14.60%	$231.26Mn
3	FMR LLC	0000315066	6,769,170	5.30%	▲5,795,388	+595.14%	$190.48Mn
4	Deep Track Capital, LP	0001856083	6,348,558	4.97%	▼424,037	-6.26%	$178.65Mn
5	Samsara BioCapital, LLC	0001744967	6,345,219	4.97%	0	0.00%	$178.55Mn
6	Foresite Capital Management V, LLC	0001792206	5,896,995	4.62%	0	0.00%	$165.94Mn
7	PRICE T ROWE ASSOCIATES INC /MD/	0000080255	5,199,838	4.07%	▲1,913,085	+58.21%	$146.33K
8	venBio Partners LLC	0001776382	4,528,408	3.55%	0	0.00%	$127.43Mn
9	Foresite Capital Management VI LLC	0002013341	4,247,670	3.33%	0	0.00%	$119.53Mn
10	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	4,215,703	3.30%	▲183,437	+4.55%	$118.63Mn
11	Nextech Invest Ltd.	0001595430	3,540,998	2.77%	0	0.00%	$99.64Mn
12	Cormorant Asset Management, LP	0001583977	3,285,596	2.57%	▼663,645	-16.80%	$92.46Mn
13	Saturn V Capital Management LP	0001964437	2,915,443	2.28%	▼286,632	-8.95%	$82.04Mn
14	Octagon Capital Advisors LP	0001839435	2,830,700	2.22%	0	0.00%	$79.66Mn
15	Jupiter Topco LLC	0002146052	2,355,122	1.84%	▲2,355,122	0.00%	$66.24Mn
16	State Street Corp	0000093751	2,187,266	1.71%	▲385,454	+21.39%	$61.55Mn
17	GEODE CAPITAL MANAGEMENT, LLC	0001214717	2,168,517	1.70%	▲250,102	+13.04%	$61.03Mn
18	MPM BioImpact LLC	0001687078	2,019,020	1.58%	▼367,509	-15.40%	$56.82Mn
19	BAKER BROS. ADVISORS LP	0001263508	2,012,500	1.58%	0	0.00%	$56.63Mn
20	SR ONE CAPITAL MANAGEMENT, LP	0001910264	1,959,896	1.53%	0	0.00%	$55.15Mn

Showing 1 to 20 of 199 holders