Castellum reminds stockholders to vote at 2026 Annual Meeting on May 19

Castellum, Inc.

Annual meeting scheduled May 19, 2026 at 10:00 a.m. ET; record date March 20, 2026.
In-person at Intelligent Office, Tysons, VA; virtual via dial-in (800-715-9871), conference ID 9842123.
Management presentation to follow adjournment; copy posted on investor relations website.
Stockholders encouraged to vote in advance via internet, telephone, or mail.

item 7.01item 9.01

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