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Insider filing · ALMS

James B. Tananbaum bought $7.0M of Alumis (ALMS)

Executed Jan 8, disclosed Jan 13, 4 days later.

Value, as filed
$7.0M
411,764 sh across 2 lots
Executed
Jan 8
the trade date, as filed
Disclosed
Jan 13
4 days after the trade
Return, 21 sessionsiFrom the disclosed entry session; derived
+36.0%
+43.5% from execution

Over the 21 trading sessions from the disclosed entry session (Jan 12), the stock returned +36.0% (delay-adjusted); from the execution session (Jan 8), +43.5%. Derived: entry at the session's open, exit at the close 20 sessions later.

The filer
JT James B. Tananbaum Director profile →

James B. Tananbaum (Director) filed 4 Form 4 reports in the trailing twelve months (4 purchases, 0 sales), most often in Alumis Inc. (ALMS). Across 4 priced purchase filings, the average 21-session return was +61.1% from execution and +48.9% from disclosure (delay-adjusted; derived). The largest single filing was $7.0M of ALMS (411,764 sh across 2 lots, as filed), executed Jan 8.

The name
ALMS Alumis Inc. ALMS · Healthcare · 24 filings in 24 months ticker →

Healthcare · Alumis Inc., a clinical stage biopharmaceutical company, focuses on the development and commercialization of medicines for autoimmune disor…

More Healthcare filings→ Insider filings, newest first→ View the original filing at www.sec.gov→
Other filings by James B. Tananbaum in ALMS
ALMSPURCHASE Alumis Inc. $533K
72,212 sh × $7.38
Exec Nov 21 2025
Filed Nov 25 2025 · 4:02 PM ET
ALMSPURCHASE Alumis Inc. $3.1M
507,874 sh across 4 lots
Exec Nov 17 2025
Filed Nov 19 2025 · 8:51 PM ET
ALMSPURCHASE Alumis Inc. $116K
25,000 sh × $4.62
Exec May 2 2025
Filed May 6 2025 · 5:30 PM ET