AMPX insider transactions

Chief Executive Officer Stepien Thomas M sold $41,940 worth of shares (2,000 units at $20.97), gifted 67,298 shares and received a gift of 36,914 shares, decreasing direct ownership by 10% to 625,625 units (SEC Form 4)

Director Sun Kang sold $6,121 worth of shares (356 units at $17.19), decreasing direct ownership by 0.03% to 1,280,498 units (SEC Form 4) (withholding obligation)

Chief Executive Officer Stepien Thomas M sold $75,222 worth of shares (4,375 units at $17.19), decreasing direct ownership by 0.63% to 694,923 units (SEC Form 4) (for withholding tax)

Chief Technology Officer Stefan Constantin Ionel sold $55,157 worth of shares (3,208 units at $17.19), decreasing direct ownership by 0.40% to 801,310 units (SEC Form 4) (withholding tax)

Director Dixon Donald R sold $320,252 worth of shares (17,895 units at $17.90) (SEC Form 4)

Director Sun Kang sold $1,002,594 worth of shares (67,796 units at $14.79), decreasing direct ownership by 5% to 1,280,854 units (SEC Form 4) to satisfy tax liability

Chief Technology Officer Stefan Constantin Ionel sold $426,083 worth of shares (28,812 units at $14.79), decreasing direct ownership by 3% to 804,518 units (SEC Form 4) (withholding obligation)

Chief Executive Officer Stepien Thomas M sold $897,685 worth of shares (60,702 units at $14.79), decreasing direct ownership by 8% to 699,298 units (SEC Form 4) to cover withholding tax

Amendment: Chief Executive Officer Stepien Thomas M was granted 200,000 shares, increasing direct ownership by 36% to 760,000 units (SEC Form 4)

Director Sun Kang was granted 6,250 shares, increasing direct ownership by 0.47% to 1,348,650 units (SEC Form 4)

SEC Form 4 filed by Sun Kang

SEC Form 4 filed by Sun Kang

Amendment: Chief Financial Officer Rodriguez Ricardo C. was granted 150,000 shares, increasing direct ownership by 75% to 350,000 units (SEC Form 4)

Director Hsieh Wen Hsuan sold $7,620,033 worth of shares (413,146 units at $18.44) and exercised 270,251 shares at a strike of $2.61, decreasing direct ownership by 76% to 44,444 units (SEC Form 4)

Director Chu Steven exercised 259,697 shares at a strike of $1.28 and sold $5,863,984 worth of shares (322,197 units at $18.20), decreasing direct ownership by 33% to 127,339 units (SEC Form 4)

Chief Financial Officer Rodriguez Ricardo C. was granted 150,000 shares, increasing direct ownership by 75% to 350,000 units (SEC Form 4)

Chief Executive Officer Stepien Thomas M was granted 150,000 shares, increasing direct ownership by 25% to 760,000 units (SEC Form 4)

Chief Technology Officer Stefan Constantin Ionel was granted 110,000 shares, increasing direct ownership by 15% to 833,330 units (SEC Form 4)

Director Sun Kang sold $622,035 worth of shares (61,251 units at $10.16), decreasing direct ownership by 4% to 1,342,400 units (SEC Form 4)

Chief Technology Officer Stefan Constantin Ionel sold $257,604 worth of shares (25,366 units at $10.16), decreasing direct ownership by 3% to 723,330 units (SEC Form 4)

Chief Technology Officer Stefan Constantin Ionel exercised 39,690 shares at a strike of $0.05 and sold $476,351 worth of shares (39,690 units at $12.00) (SEC Form 4)

Chief Technology Officer Stefan Constantin Ionel exercised 567,707 shares at a strike of $0.14 and sold $6,830,523 worth of shares (567,707 units at $12.03) (SEC Form 4)

Director Sun Kang exercised 993,733 shares at a strike of $2.40 and sold $10,994,944 worth of shares (993,733 units at $11.06) (SEC Form 4)

Director Sun Kang exercised 506,267 shares at a strike of $1.80 and sold $5,111,474 worth of shares (506,267 units at $10.10) (SEC Form 4)

President Stepien Thomas M was granted 200,000 shares, increasing direct ownership by 49% to 610,000 units (SEC Form 4)

Chief Technology Officer Stefan Constantin Ionel exercised 125,000 shares at a strike of $0.05 and sold $2,083,382 worth of shares (198,255 units at $10.51), decreasing direct ownership by 9% to 748,696 units (SEC Form 4)

Chief Technology Officer Stefan Constantin Ionel sold $252,274 worth of shares (25,024 units at $10.08), decreasing direct ownership by 3% to 821,951 units (SEC Form 4)

Chief Executive Officer Sun Kang sold $692,132 worth of shares (68,655 units at $10.08), decreasing direct ownership by 5% to 1,403,651 units (SEC Form 4)

Chief Executive Officer Sun Kang sold $10,595,300 worth of shares (1,000,000 units at $10.60) and exercised 1,000,000 shares at a strike of $0.28 (SEC Form 4)

Chief Financial Officer Rodriguez Ricardo C. was granted 200,000 shares (SEC Form 4)

SEC Form 3 filed by new insider Rodriguez Ricardo C.

Chief Technology Officer Stefan Constantin Ionel sold $130,592 worth of shares (19,159 units at $6.82), decreasing direct ownership by 2% to 846,975 units (SEC Form 4)

Chief Financial Officer Wallach Sandra sold $193,512 worth of shares (28,390 units at $6.82), decreasing direct ownership by 3% to 1,005,275 units (SEC Form 4)

Chief Executive Officer Sun Kang sold $447,511 worth of shares (65,654 units at $6.82), decreasing direct ownership by 4% to 1,472,306 units (SEC Form 4)

Director Hsieh Wen Hsuan was granted 44,444 shares, increasing direct ownership by 31% to 187,339 units (SEC Form 4)

Director Dixon Donald R was granted 44,444 shares, increasing direct ownership by 13% to 394,656 units (SEC Form 4)

Director Satterthwaite Livingston was granted 44,444 shares, increasing direct ownership by 15% to 336,083 units (SEC Form 4)

Director Bayless Kathleen A was granted 44,444 shares, increasing direct ownership by 28% to 205,697 units (SEC Form 4)

Director Chu Steven was granted 44,444 shares, increasing direct ownership by 31% to 189,839 units (SEC Form 4)

Chief Technology Officer Stefan Constantin Ionel sold $49,530 worth of shares (20,366 units at $2.43), decreasing direct ownership by 2% to 866,134 units (SEC Form 4)

Chief Financial Officer Wallach Sandra sold $67,111 worth of shares (27,595 units at $2.43), decreasing direct ownership by 3% to 1,033,665 units (SEC Form 4)

Chief Executive Officer Sun Kang sold $169,720 worth of shares (69,786 units at $2.43), decreasing direct ownership by 4% to 1,812,235 units (SEC Form 4)

Amendment: New insider Stepien Thomas M claimed ownership of 10,000 shares (SEC Form 3)

President Stepien Thomas M was granted 400,000 shares (SEC Form 4)

SEC Form 3 filed by new insider Stepien Thomas M

Chief Executive Officer Sun Kang was granted 599,400 shares, increasing direct ownership by 47% to 1,882,021 units (SEC Form 4)

Chief Financial Officer Wallach Sandra was granted 383,260 shares, increasing direct ownership by 57% to 1,061,260 units (SEC Form 4)

Chief Technology Officer Stefan Constantin Ionel was granted 461,540 shares, increasing direct ownership by 109% to 886,500 units (SEC Form 4)

Chief Technology Officer Stefan Constantin Ionel exercised 3,471 shares at a strike of $0.98, increasing direct ownership by 0.82% to 424,960 units (SEC Form 4)

President of Amprius Lab Bornstein Jonathan exercised 3,471 shares at a strike of $0.98, increasing direct ownership by 0.83% to 422,668 units (SEC Form 4)

Chief Executive Officer Sun Kang sold $107,635 worth of shares (34,353 units at $3.13), decreasing direct ownership by 3% to 1,282,621 units (SEC Form 4)

Chief Financial Officer Wallach Sandra sold $56,843 worth of shares (18,142 units at $3.13), decreasing direct ownership by 3% to 678,000 units (SEC Form 4)

Chief Technology Officer Stefan Constantin Ionel sold $28,406 worth of shares (9,066 units at $3.13), decreasing direct ownership by 2% to 421,489 units (SEC Form 4)

President of Amprius Lab Bornstein Jonathan sold $42,383 worth of shares (13,527 units at $3.13), decreasing direct ownership by 3% to 419,197 units (SEC Form 4)

Chief Executive Officer Sun Kang sold $66,362 worth of shares (33,779 units at $1.96), decreasing direct ownership by 3% to 1,316,974 units (SEC Form 4)

President of Amprius Lab Bornstein Jonathan sold $322,016 worth of shares (166,706 units at $1.93), decreasing direct ownership by 4% to 454,131 units (SEC Form 4)

Chief Financial Officer Wallach Sandra sold $33,709 worth of shares (17,158 units at $1.96), decreasing direct ownership by 2% to 696,142 units (SEC Form 4)

Chief Technology Officer Stefan Constantin Ionel sold $16,846 worth of shares (8,575 units at $1.96), decreasing direct ownership by 2% to 430,555 units (SEC Form 4)

SEC Form 4 filed by President of Amprius Lab Bornstein Jonathan

SEC Form 4 filed by Chief Technology Officer Stefan Constantin Ionel