Alumis Inc.

ALMS

Exchange: Nasdaq
Industry: Pharmaceutical Preparations
SEC CIK: 0001847367

SEC filings (opens in a new tab)

In the last 90 days, Alumis Inc. insiders filed 1 open-market purchase and 8 sales; 198 institutions reported holding it in 13F filings for Q2 2026, worth $3.32B in total; no superinvestor holds it.

Q4 2025 vs. Q3 2025

How the institutions holding Alumis Inc. changed between Q3 2025 and Q4 2025.

All holders in Q4 2025 All holders in Q3 2025

13F holders of ALMS: Q3 2025 compared with Q4 2025
Measure	Q3 2025	Of which not filed for Q4 2025	Q4 2025	Change
Holders	130	1	134	+5
Shares	78.0M	1.40M	79.1M	+2.48M (+3.2%)
Value	$311.2M	$5.58M	$771.1M	+$465.5M (+152.3%)

1 institution that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so the changes leave them out.

New holders (30)

Institutions that held Alumis Inc. at the end of Q4 2025 but not at the end of Q3 2025.

Institutions new to ALMS in Q4 2025
Institution	Shares	Value	% of portfolio
Saturn V Capital Management LLC	3,135,953	$30.6M	5.62%
Octagon Capital Advisors LP	2,530,700	$24.7M	3.09%
MPM Oncology Impact Management LP	2,401,992	$23.4M	2.68%
Siren, L.L.C.	500,000	$4.88M	0.15%
Marshall Wace, LLP	372,901	$3.64M	0.00%
D. E. Shaw & Co., Inc.	231,747	$2.26M	0.00%
Verition Fund Management LLC	80,062	$781.4K	0.00%
Virtu Financial LLC	50,283	$491.0K	0.02%
PSP Research LLC	43,769	$427.2K	0.37%
Creative Planning	38,110	$372.0K	0.00%
Fox Run Management, L.L.C.	37,707	$368.0K	0.06%
Brevan Howard Capital Management LP	34,917	$340.8K	0.01%
Grange Capital, LLC	32,000	$312.3K	0.30%
Gsa Capital Partners LLP	30,913	$302.0K	0.03%
Dynamic Technology Lab Private Ltd	26,567	$259.0K	0.06%
Balyasny Asset Management LLC	24,769	$241.7K	0.00%
Virtus Investment Advisers, Inc.	23,153	$226.0K	0.06%
Schonfeld Strategic Advisors LLC	23,028	$224.8K	0.00%
Bank of Nova Scotia	20,900	$204.0K	0.00%
Mercer Global Advisors Inc	14,908	$145.5K	0.00%
PDT Partners, LLC	14,562	$142.1K	0.01%
Banco BTG Pactual S.A.	14,302	$139.6K	0.02%
Signaturefd, LLC	1,266	$12.4K	0.00%
GAMMA Investing LLC	792	$7.73K	0.00%
Aster Capital Management (DIFC) Ltd	728	$7.11K	0.00%
Optiver Holding B.V.	306	$2.99K	0.00%
Global Retirement Partners, LLC	65	$634	0.00%
Torren Management, LLC	14	$137	0.00%
Larson Financial Group LLC	10	$98	0.00%
Sunbelt Securities, Inc.	7	$68	0.00%

Sold out (25)

Institutions that held Alumis Inc. at the end of Q3 2025 and filed for Q4 2025 without it.

Institutions that sold out of ALMS in Q4 2025
Institution	Shares, Q3 2025	Value, Q3 2025
Woodline Partners LP	1,751,150	$6.99M
General Atlantic LLC	1,297,530	$5.18M
BML Capital Management, LLC	1,210,415	$4.83M
Tang Capital Management LLC	1,167,009	$4.66M
Velan Capital Investment Management LP	946,683	$3.78M
Madison Avenue Partners, LP	417,777	$1.67M
Stonepine Capital Management, LLC	300,000	$1.20M
Credit Industriel Et Commercial	247,002	$985.5K
Walleye Capital LLC	77,550	$309.4K
Blair William & Co	66,719	$266.2K
ADAR1 Capital Management, LLC	61,291	$244.6K
Jacobs Levy Equity Management, Inc	40,162	$160.2K
Stoneridge Investment Partners LLC	29,535	$118.0K
Atom Investors LP	24,176	$96.5K
PharVision Advisers, LLC	20,693	$82.6K
Sig Brokerage, LP	19,808	$79.0K
Western Wealth Management, LLC	12,035	$48.0K
Simplex Trading, LLC	8,837	$35.0K
Quarry LP	3,938	$15.7K
GPS Wealth Strategies Group, LLC	1,000	$3.99K
Clayton Financial Group LLC	481	$1.92K
Quadrant Capital Group LLC	113	$451
Rise Advisors, LLC	103	$411
Principal Securities, Inc.	36	$144
Salem Investment Counselors Inc	20	$80

Not filed for Q4 2025 yet (1)

Institutions that held Alumis Inc. at the end of Q3 2025 and haven't filed a 13F for Q4 2025. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding ALMS in Q3 2025 that haven't filed for Q4 2025
Institution	Shares, Q3 2025	Value, Q3 2025
Tybourne Capital Management (HK) Ltd	1,399,250	$5.58M