ALMS Alumis Inc.

NASDAQ
$23.03

Alumis Inc. (ALMS) Institutional Ownership

What the institutions did with ALMS last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.

Managers reporting
218
filed a 13F this quarter
Managers holding
194
+2 on the quarter
Buyers
100
26 opened new
Sellers
85
24 sold out entirely
Buyer share
54.1%
of managers who traded it
Breadth
+8.1
net buyers, as a share of those trading

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Largest holders

Manager Shares % of reported
AyurMaya Capital Management Company, LP 15.1M 12.8%
BlackRock, Inc. 8.2M 7.0%
FMR LLC 6.8M 5.7%
Deep Track Capital, LP 6.3M 5.4%
SAMSARA BIOCAPITAL, LLC 6.3M 5.4%
Foresite Capital Management V, LLC 5.9M 5.0%
PRICE T ROWE ASSOCIATES INC /MD/ 5.2M 4.4%
venBio Partners LLC 4.5M 3.8%
Foresite Capital Management VI LLC 4.2M 3.6%
VANGUARD CAPITAL MANAGEMENT LLC 4.2M 3.6%
Nextech Invest, Ltd. 3.5M 3.0%
Cormorant Asset Management, LP 3.3M 2.8%
Saturn V Capital Management LP 2.9M 2.5%
Octagon Capital Advisors LP 2.8M 2.4%
Jupiter Topco LLC 2.4M 2.0%
STATE STREET CORP 2.2M 1.9%
GEODE CAPITAL MANAGEMENT, LLC 2.2M 1.8%
MPM BIOIMPACT LLC 2.0M 1.7%
BAKER BROS. ADVISORS LP 2.0M 1.7%
SR One Capital Management, LP 2.0M 1.7%
Invesco Ltd. 1.2M 1.0%
NOVO HOLDINGS A/S 1.1M 0.9%
PRINCIPAL FINANCIAL GROUP INC 1.1M 0.9%
JPMORGAN CHASE & CO 969.6K 0.8%
D. E. Shaw & Co., Inc. 968.2K 0.8%

Largest changes

Manager Action Previous Current Change
FMR LLC Increased 973.8K 6.8M +5.8M
UBS Group AG Reduced 3.1M 951.8K -2.1M
PRICE T ROWE ASSOCIATES INC /MD/ Increased 3.3M 5.2M +1.9M
NOVO HOLDINGS A/S New 0 1.1M +1.1M
BlackRock, Inc. Increased 7.2M 8.2M +1.0M
MARSHALL WACE, LLP Reduced 1.2M 368.0K -804.7K
Weiss Asset Management LP Reduced 1.1M 311.4K -786.0K
Cormorant Asset Management, LP Reduced 3.9M 3.3M -663.6K
Yu Fan Reduced 776.8K 252.7K -524.2K
Woodline Partners LP New 0 486.1K +486.1K
VOLORIDGE INVESTMENT MANAGEMENT, LLC Reduced 749.1K 320.9K -428.2K
Deep Track Capital, LP Reduced 6.8M 6.3M -424.0K
D. E. Shaw & Co., Inc. Increased 572.1K 968.2K +396.1K
STATE STREET CORP Increased 1.8M 2.2M +385.5K
PRUDENTIAL FINANCIAL INC Reduced 538.7K 162.6K -376.2K
MPM BIOIMPACT LLC Reduced 2.4M 2.0M -367.5K
Point72 Asset Management, L.P. Sold Out 363.0K 0 -363.0K
CITADEL ADVISORS LLC Sold Out 351.5K 0 -351.5K
Ikarian Capital, LLC Reduced 1.2M 870.5K -343.0K
Invesco Ltd. Reduced 1.5M 1.2M -338.0K
STEMPOINT CAPITAL LP Reduced 459.1K 135.7K -323.4K
Saturn V Capital Management LP Reduced 3.2M 2.9M -286.6K
CITIGROUP INC Increased 98.9K 385.4K +286.5K
TWO SIGMA INVESTMENTS, LP Reduced 658.1K 376.1K -282.0K
ExodusPoint Capital Management, LP Sold Out 266.2K 0 -266.2K

13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.