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Alumis Inc.

ALMS
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
SEC CIK
0001847367

In the last 90 days, Alumis Inc. insiders filed 1 open-market purchase and 7 sales; 198 institutions reported holding it in 13F filings for Q2 2026, worth $3.32B in total; no superinvestor holds it.

Holders of 5% or more of ALMS

Holders whose latest Schedule 13D or 13G filing reports 5% or more of Alumis Inc., largest stake first. The change is against the holder's previous filing.

Holders of 5% or more of ALMS
HolderLatest formStakeChangeFirst filedLatest filingFiling
Foresite Capital Fund VI LP13D14.50%9.18M sharesNewAug 17, 20261 filingAug 17, 2026SEC
Foresite Capital Fund VI LP13D/A12.70%15.7M shares−1.40 ppfrom 14.10%Jul 5, 20245 filingsApr 3, 2026SEC
AyurMaya Capital Management Company, LP13D/A12.30%15.1M shares−3.50 ppfrom 15.80%Jul 3, 20244 filingsJul 2, 2026SEC
Deep Track Capital, LP13G5.98%7.36M sharesNewApr 7, 20261 filingApr 7, 2026SEC
BlackRock, Inc.13G5.70%7.07M sharesNewJul 27, 20261 filingJul 27, 2026SEC
Samsara BioCapital, L.P.13D/A5.40%6.35M shares+0.10 ppfrom 5.30%Aug 27, 20245 filingsJan 13, 2026SEC

Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.

13D and 13G filings

21 Schedule 13D and 13G filings on Alumis Inc., newest first, including old-format filings without a stake.

Schedule 13D and 13G filings on ALMS
Filed (ET)FilerFormStakeChangeEvent dateFiling
Nov 5, 20261:10 PM ETFMR LLCand 1 other13G/A0.00%17.4K shares−5.50 ppfrom 5.50%Below 5%Sep 30, 2026SEC
Aug 17, 20266:09 AM ETForesite Capital Fund VI LPand 6 others13D14.50%9.18M sharesNewAug 10, 2026SEC
Aug 6, 202610:14 AM ETFMR LLCand 1 other13G5.50%6.77M sharesNewJun 30, 2026SEC
Jul 27, 20264:25 PM ETBlackRock, Inc.13G5.70%7.07M sharesNewJun 30, 2026SEC
Jul 2, 20265:01 PM ETAyurMaya Capital Management Company, LPand 1 other13D/A12.30%15.1M shares−3.50 ppfrom 15.80%May 14, 2026SEC
Apr 7, 20264:27 PM ETDeep Track Capital, LPand 2 others13G5.98%7.36M sharesNewMar 30, 2026SEC
Apr 3, 20263:51 PM ETForesite Capital Fund VI LPand 11 others13D/A12.70%15.7M shares−1.40 ppfrom 14.10%Apr 1, 2026SEC
Jan 13, 20266:18 PM ETSamsara BioCapital, L.P.and 4 others13D/A5.40%6.35M shares+0.10 ppfrom 5.30%Jan 9, 2026SEC
Jan 12, 20269:59 PM ETForesite Capital Fund VI LPand 11 others13D/A14.10%16.2M shares−1.80 ppfrom 15.90%Jan 8, 2026SEC
Nov 24, 20256:54 PM ETSamsara BioCapital, L.P.and 4 others13D5.30%5.13M shares+0.40 ppfrom 4.90%Nov 18, 2025SEC
Nov 17, 20254:56 PM ETSamsara BioCapital, L.P.and 4 others13D/A4.90%4.77M shares−0.10 ppfrom 5.00%Below 5%Nov 13, 2025SEC
Nov 17, 20251:13 PM ETvenBio Global Strategic Fund IV, L.P.and 3 others13G/A4.80%4.62M shares–Below 5%Jun 30, 2025SEC
Jun 10, 20254:37 PM ETForesite Capital Fund VI LPand 11 others13D/A15.90%15.2M shares−16.30 ppfrom 32.20%May 21, 2025SEC
May 23, 20258:49 PM ETSamsara BioCapital, L.P.and 2 others13D/A5.00%4.80M shares–May 21, 2025SEC
May 23, 20254:16 PM ETAyurMaya Capital Management Company, LPand 1 other13D/A15.80%15.1M shares−6.70 ppfrom 22.50%May 21, 2025SEC
May 7, 20253:33 PM ETForesite Capital Fund VI LPand 11 others13D/A32.20%15.2M shares–Aug 13, 2024SEC
Feb 10, 20255:00 PM ETAyurMaya Capital Management Company, LPand 1 other13D/A22.50%10.6M shares–Feb 6, 2025SEC
Aug 27, 2024Samsara BioCapital, L.P.13DOld format–New–SEC
Jul 11, 2024venBio Global Strategic Fund IV, L.P.13GOld format–New–SEC
Jul 5, 2024Foresite Capital Fund VI LP13DOld format–New–SEC
Jul 3, 2024AyurMaya Capital Management Company, LP13DOld format–New–SEC

Form 144: proposed insider sales

1 notice from officers, directors and other affiliates planning to sell Alumis Inc. shares, newest first.

Form 144 notices for ALMS
Filed (ET)SellerShares to sellMarket valuePlanned saleBrokerFiling
Jul 6, 20264:06 PM ETSanampreet PangaliOfficer5.00K$140.0KJul 6, 2026Morgan Stanley Smith Barney LLC Executive Financial ServicesSEC