ALMS Alumis Inc.

NASDAQ
$7.77

Alumis Inc. (ALMS) Insider Activity

What the officers, directors and large holders did with their own shares. Only open-market purchases and sales count toward the totals — grants, option exercises and shares withheld for tax are compensation mechanics, not decisions, and they're listed separately below.

Insider signal Bullish Insiders bought more than they sold over this window — uncommon at any size.
Cluster activity 1 buyer in the last 30 days 1 buyer in the last 90 days 7 sellers in the last 90 days
Insiders buying
3
40 transactions
Insiders selling
7
9 transactions
Purchases
$61.7M
5,815,759 shares
Sales
$1.5M
116,084 shares
Net activity
$60.1M
purchases less sales

How much of that selling was preplanned? 0% planned / 100% discretionary

10b5-1 plan sales $0 0 transactions · 0 shares
Discretionary sales $1.5M 9 transactions · 116,084 shares

Largest single sale: $507.0K.

Where they traded

Buy Sell Dot area is proportional to transaction value.

Last open-market purchase: September 8, 2026 , by AKKARAJU SRINIVAS .

Recent open-market activity

Date Insider Role Action Shares Price Value Held after
AKKARAJU SRINIVAS 2 fills Director Buy 546,581 $10.63 $5.8M 4,937,026
AKKARAJU SRINIVAS 2 fills Director Sell 96,131 $10.55 $1.0M 4,663,735 −2% of holding
AKKARAJU SRINIVAS 2 fills Director Buy 440,140 $11.17 $4.9M 4,711,801
Schroer John R. Chief Financial Officer Sell 3,282 $26.37 $86.5K 24,718 −11.7% of holding
Hardiman Roy C. Chief Business & Strategy Ofcr Sell 2,692 $26.37 $71.0K 207,746 −1.3% of holding
Goldstein David M Chief Scientific Officer Sell 2,596 $26.37 $68.5K 30,970 −7.7% of holding
Bradley Mark Christopher Chief Development Officer Sell 2,572 $26.37 $67.8K 48,533 −5% of holding
Drappa Jorn Chief Medical Officer Sell 2,447 $26.37 $64.5K 56,892 −4.1% of holding
Pangali Sanam Chief Legal Officer Sell 1,364 $26.37 $36.0K 9,747 −12.3% of holding
Pangali Sanam Chief Legal Officer Sell 5,000 $28.00 $140.0K 11,111 −31% of holding
AKKARAJU SRINIVAS Director Buy 588,235 $17.00 $10.0M 1,853,488
4 fills Buy 823,528 $17.00 $14.0M 5,702,536
Tananbaum James B. 2 fills Director Buy 411,764 $17.00 $7.0M 5,702,536
AKKARAJU SRINIVAS 3 fills Director Buy 186,377 $9.84 $1.8M 1,265,253
AKKARAJU SRINIVAS Director Buy 66,027 $8.18 $540.1K 1,078,876
AKKARAJU SRINIVAS Director Buy 100,000 $7.75 $775.0K 1,012,849
AKKARAJU SRINIVAS Director Buy 96,000 $7.55 $724.8K 912,849
AKKARAJU SRINIVAS Director Buy 86,350 $7.46 $644.2K 816,849
AKKARAJU SRINIVAS Director Buy 38,702 $7.64 $295.7K 730,499
AKKARAJU SRINIVAS Director Buy 48,537 $7.64 $370.8K 691,797
2 fills Buy 144,424 $7.38 $1.1M 2,614,215
Tananbaum James B. Director Buy 72,212 $7.38 $532.9K 2,614,215
AKKARAJU SRINIVAS Director Buy 125,743 $7.20 $905.3K 643,260
2 fills Buy 381,000 $6.56 $2.5M 2,542,003
Tananbaum James B. Director Buy 190,500 $6.56 $1.2M 2,542,003
AKKARAJU SRINIVAS Director Buy 137,772 $6.56 $903.8K 517,517
2 fills Buy 234,748 $6.19 $1.5M 2,351,503
Tananbaum James B. Director Buy 117,374 $6.19 $726.5K 2,351,503
AKKARAJU SRINIVAS Director Buy 102,652 $6.05 $621.0K 379,745
4 fills Buy 400,000 $5.59 $2.2M 2,234,129
Tananbaum James B. 2 fills Director Buy 200,000 $5.59 $1.1M 2,234,129
AKKARAJU SRINIVAS Director Buy 914 $5.51 $5.0K 277,093
AKKARAJU SRINIVAS Director Buy 276,179 $5.25 $1.4M 276,179

Form 4s are due within two business days of a transaction, so this is close to real time — unlike the quarterly 13F data on the Institutional tab. A single large sale often reflects a prearranged 10b5-1 plan rather than a fresh view, so read a pattern of sales rather than any one of them.