Insider at

04

Insider transactions

05
0 buys (P) 0 sells (S) Net: $0 + 2 non-open-market transactions below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

2 other filings hidden
DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
Sept. 4, 2024 AMPX S 13,255 $0.95 $12,592 65,195,997 Direct -0.02% Disposed 917.9% (price as of 2026-10-02)
Sept. 3, 2024 AMPX S 6,300 $1.00 $6,300 65,209,252 Direct -0.01% Disposed 867.0% (price as of 2026-10-02)
Dec. 15, 2023 AMPX S 100,000 $3.54 $354,000 65,215,552 Direct -0.15% Disposed 173.2% (price as of 2026-10-02)
Dec. 14, 2023 AMPX S 100,000 $3.55 $355,000 65,315,552 Direct -0.15% Disposed 172.4% (price as of 2026-10-02)
Dec. 13, 2023 AMPX S 100,000 $3.62 $362,000 65,415,552 Direct -0.15% Disposed 167.1% (price as of 2026-10-02)

P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding

Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.

Initial ownership (Form 3) 1 holding

07

Securities held when first becoming an insider, per SEC Form 3.

DateTickerSecuritySharesOwnership
Sept. 16, 2022 AMPX Common Stock · Direct