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Kupriienko Serhii Form SCHEDULE 13D/A — Sep 23, 2026

Form SCHEDULE 13D/AFiled Sep 23, 2026, 4:24 PM ET0001104659-26-109988Original filing

Serhii Kupriienko, former Global CEO and current director of Swarmer, Inc., filed a Schedule 13D/A (Amendment No. 1) reporting beneficial ownership of 4,674,528 shares, or 28.7% of the issuer's common stock. The amendment reflects a September 21, 2026 option exercise of 235,163 shares for an aggregate exercise price of $2.35, following a prior exercise of 3,997,762 shares on August 9, 2026 and a forfeiture of 1,202,065 unvested RSUs on August 19, 2026. The percentage is based on 16,004,739 shares outstanding as of August 31, 2026, and excludes 1,509,147 shares underlying options vesting beyond 60 days.

Key figures

Shares Outstanding
16004739
Rsus forfeited
1202065
Percent of class
28.7%
Rsu shares received
55910
Beneficially owned shares
4674528
Prior exercise aug 9 2026
3997762
Shares acquired option exercise
235163
Options excluded vesting beyond 60 days
1509147

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