$ALMS

$6.51 -$0.27 (3.98%) Close

$ALMS Overview Financial Statements SEC Filings Executives News Red Flags Capital Raising Ownership Insider Transactions Congressional Trades

Ownership

13F as of Q2 2026 · 127.7M shares outstanding

Who owns ALMS?

By type of holder

Institutions 92.3% Insiders 7.7% Everyone else 0.0%

Concentration Top 10 holders own 64.0%

James B. Tananbaum 12.3% · AyurMaya Capital Management Company, LP 11.9%

Institutional ownership

92.3%

+2.5 pts vs last qtr

Institutional holders

196

-1 vs last qtr

Net shares bought

+3.1M

by institutions in Q2 2026

New / sold out

29 / 30

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

FMR LLC +5.8M
Jupiter Topco LLC NEW +2.4M

Biggest sellers in Q2 2026

Janus Henderson Group PLC SOLD OUT −2.1M
UBS Group AG −2.1M

Who is planning to sell?

Notices of proposed sale, last 12 months

$140K

1 notice from 1 person

Shares covered

5.0K

0.00% of the company

Arranged in advance

of the value is under a 10b5-1 plan

Under a 10b5-1 plan No plan

Largest proposed sellers

Sanampreet Pangali Officer $140K

Every notice on Red Flags →

A Form 144 is notice of a planned sale, not the sale itself. What insiders actually sold is on Insider Transactions.

Is your stake being diluted?

Diluted share count, FY2023–FY2025

+3854.5%

+528.85% a year

Each share's claim on the business

−97.5%

shrank without buying or selling a share

Spent on buybacks vs paid in stock

$87K vs $71.6M

over 3 fiscal years

Diluted shares, split-adjusted

Buybacks Stock-based comp

How patient are the owners?

Institutional shares by how long they've been held

5+ years0% 3–5 years0% 1–3 years75% Under 1 year25%

Quarterly turnover

13.3%

of institutional shares changed hands

Top 10 managers, median time held

1.8 years

Super Investors

Investment managers reporting ALMS on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
AC AyurMaya Capital Management Company, LP 13D · 12.3%	15.1M	11.86%	Unchanged	2024	100.0%
Shares held by quarter Peak holding15.1M (Q2'25) Change over 8 quarters+4.5M Share of the company11.860% Disclosed stake13D · 12.3% AyurMaya Capital Management Company, LP's full portfolio →
B BlackRock, Inc.	8.2M	6.44%	+1.0M (+14.6%)	2024	0.0%
Shares held by quarter Peak holding8.2M (Q2'26) Change over 8 quarters+7.4M Share of the company6.440% BlackRock, Inc.'s full portfolio →

AyurMaya Capital Management Company, LP

13D · 12.3%

15.1M

% of company

11.86%

Change vs last qtr

Unchanged

Held since

2024

BlackRock, Inc.

8.2M

% of company

6.44%

Change vs last qtr

+1.0M (+14.6%)

Held since

2024

28 more super investors behind a free account

See every manager holding Alumis Inc., how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting ALMS on Form N-PORT; together they hold 24.1% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
VT Vanguard Total Stock Market Index Fund Vanguard Index Funds	$88.4M	3.1M	2.46%	0.00%	June 30, 2026
IR iShares Russell 2000 ETF iShares Trust	$56.9M	2.0M	1.58%	0.07%	June 30, 2026

Vanguard Total Stock Market Index Fund

Vanguard Index Funds

Position value

$88.4M

% of company

2.46%

% of the fund

0.00%

As of

June 30, 2026

iShares Russell 2000 ETF

iShares Trust

Position value

$56.9M

% of company

1.58%

% of the fund

0.07%

As of

June 30, 2026

23 more funds behind a free account

See every fund holding Alumis Inc. and how much of the fund the position is.

Insiders and 5%+ holders

From Forms 3/4/5 and Schedules 13D/G

Holder	Shares	% of company	Change vs last qtr	8 quarters	Held since	% of their book
JB James B. Tananbaum 5%+ holder 13D · 12.7%	15.7M	12.29%	—	—	—	—
This holder reports through Schedule 13D/G, not a quarterly 13F. Share of the company12.290% Disclosed stake13D · 12.7% View the 13D/G filing →
SA Srinivas Akkaraju 5%+ holder 13D · 5.4%	6.3M	4.97%	—	—	—	—
This holder reports through Schedule 13D/G, not a quarterly 13F. Share of the company4.970% Disclosed stake13D · 5.4% View the 13D/G filing →

James B. Tananbaum

5%+ holder13D · 12.7%

15.7M

% of company

12.29%

Change vs last qtr

—

Held since

—

Srinivas Akkaraju

5%+ holder13D · 5.4%

6.3M

% of company

4.97%

Change vs last qtr

—

Held since

—

24 more holders behind a free account

See every insider and 5%+ holder of Alumis Inc..

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