Amprius Technologies, Inc. - AMPX
Insiders (Form 4) · last 180 days · showing up to 200 transactions
· Form 144 is shown in the SEC filings tab
· Updating…
Visible: 0
Transaction codes:
P = Open-market purchase ·
S = Open-market sale ·
A = Grant/award ·
M = Exercise/conversion of derivative ·
G = Gift ·
F = Tax withholding ·
J = Other ·
A/D:
A = Acquired (buy/receive) ·
D = Disposed (sell/give)
| Filed | Owner | Title | Code | A/D | Shares | Price | Value | Shares after | SEC |
|---|---|---|---|---|---|---|---|---|---|
| Apr 02, 2026 | — | M | D | 187,495.0 | 3.68 | 689,981.6 | 1,787,007.0 | View | |
| Apr 02, 2026 | — | M | D | 1,312,505.0 | 1.78 | 2,336,258.9 | 0.0 | View | |
| Apr 02, 2026 | — | S | D | 249,037.0 | 16.7829 | 4,179,563.07 | 1,342,400.0 | View | |
| Apr 02, 2026 | — | S | D | 1,250,963.0 | 15.7328 | 19,681,150.69 | 1,591,437.0 | View | |
| Apr 02, 2026 | — | M | A | 187,495.0 | 3.68 | 689,981.6 | 2,842,400.0 | View | |
| Apr 02, 2026 | — | M | A | 1,312,505.0 | 1.78 | 2,336,258.9 | 2,654,905.0 | View | |
| Mar 24, 2026 | — | S | D | 65,046.0 | 19.0589 | 1,239,705.21 | 56,406.0 | View | |
| Mar 24, 2026 | — | S | D | 152,823.0 | 18.6863 | 2,855,696.42 | 121,452.0 | View | |
| Mar 13, 2026 | Chief Financial Officer | A | A | 150,000.0 | 0.0 | 0.0 | 350,000.0 | View | |
| Mar 13, 2026 | — | M | D | 270,251.0 | 2.61 | 705,355.11 | 0.0 | View | |
| Mar 13, 2026 | — | S | D | 130,646.0 | 18.2232 | 2,380,788.19 | 44,444.0 | View | |
| Mar 13, 2026 | — | S | D | 282,500.0 | 18.546 | 5,239,245.0 | 175,090.0 | View | |
| Mar 13, 2026 | — | M | A | 270,251.0 | 2.61 | 705,355.11 | 457,590.0 | View | |
| Mar 12, 2026 | — | M | D | 69,422.0 | 0.62 | 43,041.64 | 0.0 | View | |
| Mar 12, 2026 | — | M | D | 86,143.0 | 2.61 | 224,833.23 | 184,108.0 | View | |
| Mar 12, 2026 | — | M | D | 104,132.0 | 0.62 | 64,561.84 | 69,422.0 | View | |
| Mar 12, 2026 | — | S | D | 5,565.0 | 18.5346 | 103,145.05 | 127,339.0 | View | |
| Mar 12, 2026 | — | S | D | 50,000.0 | 18.2148 | 910,740.0 | 132,904.0 | View | |
| Mar 12, 2026 | — | S | D | 100,000.0 | 18.6467 | 1,864,670.0 | 182,904.0 | View | |
| Mar 12, 2026 | — | M | A | 69,422.0 | 0.62 | 43,041.64 | 282,904.0 | View | |
| Mar 12, 2026 | — | M | A | 86,143.0 | 2.61 | 224,833.23 | 213,482.0 | View | |
| Mar 12, 2026 | — | S | D | 166,632.0 | 17.9163 | 2,985,428.9 | 127,339.0 | View | |
| Mar 12, 2026 | — | M | A | 104,132.0 | 0.62 | 64,561.84 | 293,971.0 | View | |
| Mar 06, 2026 | Chief Technology Officer | A | A | 110,000.0 | 0.0 | 0.0 | 833,330.0 | View | |
| Mar 06, 2026 | Chief Executive Officer | A | A | 150,000.0 | 0.0 | 0.0 | 760,000.0 | View | |
| Mar 06, 2026 | Chief Financial Officer | A | A | 150,000.0 | 0.0 | 0.0 | 350,000.0 | View | |
| Feb 24, 2026 | Chief Technology Officer | S | D | 25,366.0 | 10.1555 | 257,604.41 | 723,330.0 | View | |
| Feb 24, 2026 | — | S | D | 61,251.0 | 10.1555 | 622,034.53 | 1,342,400.0 | View | |
| Jan 30, 2026 | Chief Technology Officer | M | D | 39,600.0 | 0.0 | 0.0 | 0.0 | View | |
| Jan 30, 2026 | Chief Technology Officer | M | D | 90.0 | 0.0 | 0.0 | 0.0 | View | |
| Jan 30, 2026 | Chief Technology Officer | S | D | 39,690.0 | 12.0018 | 476,351.44 | 748,696.0 | View | |
| Jan 30, 2026 | Chief Technology Officer | M | A | 39,600.0 | 0.05 | 1,980.0 | 788,386.0 | View | |
| Jan 30, 2026 | Chief Technology Officer | M | A | 90.0 | 0.62 | 55.8 | 748,786.0 | View | |
| Jan 23, 2026 | Chief Technology Officer | M | D | 1,600.0 | 0.0 | 0.0 | 39,600.0 | View | |
| Jan 23, 2026 | Chief Technology Officer | M | D | 166,104.0 | 0.0 | 0.0 | 0.0 | View | |
| Jan 23, 2026 | Chief Technology Officer | M | D | 72,795.0 | 0.0 | 0.0 | 0.0 | View | |
| Jan 23, 2026 | Chief Technology Officer | M | D | 253,928.0 | 0.0 | 0.0 | 41,200.0 | View | |
| Jan 23, 2026 | Chief Technology Officer | M | D | 15,883.0 | 0.0 | 0.0 | 166,104.0 | View | |
| Jan 23, 2026 | Chief Technology Officer | M | D | 15,834.0 | 0.0 | 0.0 | 295,128.0 | View | |
| Jan 23, 2026 | Chief Technology Officer | M | D | 41,563.0 | 0.0 | 0.0 | 90.0 | View | |
| Jan 23, 2026 | Chief Technology Officer | S | D | 1,600.0 | 12.0 | 19,200.0 | 748,696.0 | View | |
| Jan 23, 2026 | Chief Technology Officer | M | A | 1,600.0 | 0.05 | 80.0 | 750,296.0 | View | |
| Jan 23, 2026 | Chief Technology Officer | S | D | 492,827.0 | 12.0365 | 5,931,912.19 | 748,696.0 | View | |
| Jan 23, 2026 | Chief Technology Officer | M | A | 166,104.0 | 0.05 | 8,305.2 | 1,241,523.0 | View | |
| Jan 23, 2026 | Chief Technology Officer | M | A | 72,795.0 | 0.45 | 32,757.75 | 1,075,419.0 | View | |
| Jan 23, 2026 | Chief Technology Officer | M | A | 253,928.0 | 0.05 | 12,696.4 | 1,002,624.0 | View | |
| Jan 23, 2026 | Chief Technology Officer | S | D | 73,280.0 | 12.0007 | 879,411.3 | 748,696.0 | View | |
| Jan 23, 2026 | Chief Technology Officer | M | A | 15,883.0 | 0.05 | 794.15 | 821,976.0 | View | |
| Jan 23, 2026 | Chief Technology Officer | M | A | 15,834.0 | 0.05 | 791.7 | 806,093.0 | View | |
| Jan 23, 2026 | Chief Technology Officer | M | A | 41,563.0 | 0.62 | 25,769.06 | 790,259.0 | View | |
| Jan 20, 2026 | — | M | D | 43,185.0 | 0.0 | 0.0 | 1,312,505.0 | View | |
| Jan 20, 2026 | — | M | D | 100,210.0 | 0.0 | 0.0 | 1,355,690.0 | View | |
| Jan 20, 2026 | — | M | D | 850,338.0 | 0.0 | 0.0 | 0.0 | View | |
| Jan 20, 2026 | — | S | D | 43,185.0 | 11.0287 | 476,274.41 | 1,403,651.0 | View | |
| Jan 20, 2026 | — | M | A | 43,185.0 | 1.78 | 76,869.3 | 1,446,836.0 | View | |
| Jan 20, 2026 | — | S | D | 950,548.0 | 11.0659 | 10,518,669.11 | 1,403,651.0 | View | |
| Jan 20, 2026 | — | M | A | 100,210.0 | 1.78 | 178,373.8 | 2,354,199.0 | View | |
| Jan 20, 2026 | — | M | A | 850,338.0 | 2.5 | 2,125,845.0 | 2,253,989.0 | View | |
| Jan 14, 2026 | — | M | D | 117,201.0 | 0.0 | 0.0 | 850,338.0 | View | |
| Jan 14, 2026 | — | M | D | 208,264.0 | 0.0 | 0.0 | 0.0 | View | |
| Jan 14, 2026 | — | M | D | 180,802.0 | 0.0 | 0.0 | 0.0 | View | |
| Jan 14, 2026 | — | S | D | 506,267.0 | 10.0964 | 5,111,474.14 | 1,403,651.0 | View | |
| Jan 14, 2026 | — | M | A | 117,201.0 | 2.5 | 293,002.5 | 1,909,918.0 | View | |
| Jan 14, 2026 | — | M | A | 208,264.0 | 2.44 | 508,164.16 | 1,792,717.0 | View | |
| Jan 14, 2026 | — | M | A | 180,802.0 | 0.62 | 112,097.24 | 1,584,453.0 | View | |
| Dec 22, 2025 | President | A | A | 200,000.0 | 0.0 | 0.0 | 610,000.0 | View | |
| Dec 15, 2025 | Chief Technology Officer | M | D | 125,000.0 | 0.0 | 0.0 | 310,962.0 | View | |
| Dec 15, 2025 | Chief Technology Officer | S | D | 198,255.0 | 10.5086 | 2,083,382.49 | 748,696.0 | View | |
| Dec 15, 2025 | Chief Technology Officer | M | A | 125,000.0 | 0.05 | 6,250.0 | 946,951.0 | View | |
| Nov 25, 2025 | Chief Technology Officer | S | D | 25,024.0 | 10.0813 | 252,274.45 | 821,951.0 | View | |
| Nov 25, 2025 | Chief Executive Officer | S | D | 68,655.0 | 10.0813 | 692,131.65 | 1,403,651.0 | View | |
| Nov 19, 2025 | Chief Executive Officer | M | D | 41,653.0 | 0.0 | 0.0 | 0.0 | View | |
| Nov 19, 2025 | Chief Executive Officer | M | D | 27,463.0 | 0.0 | 0.0 | 180,802.0 | View | |
| Nov 19, 2025 | Chief Executive Officer | M | D | 727,950.0 | 0.0 | 0.0 | 0.0 | View | |
| Nov 19, 2025 | Chief Executive Officer | M | D | 202,934.0 | 0.0 | 0.0 | 0.0 | View | |
| Nov 19, 2025 | Chief Executive Officer | S | D | 1,000,000.0 | 10.5953 | 10,595,300.0 | 1,472,306.0 | View | |
| Nov 19, 2025 | Chief Executive Officer | M | A | 41,653.0 | 0.62 | 25,824.86 | 2,472,306.0 | View | |
| Nov 19, 2025 | Chief Executive Officer | M | A | 27,463.0 | 0.62 | 17,027.06 | 2,430,653.0 | View | |
| Nov 19, 2025 | Chief Executive Officer | M | A | 727,950.0 | 0.05 | 36,397.5 | 2,403,190.0 | View | |
| Nov 19, 2025 | Chief Executive Officer | M | A | 202,934.0 | 0.98 | 198,875.32 | 1,675,240.0 | View | |
| Oct 08, 2025 | Chief Financial Officer | A | A | 200,000.0 | 0.0 | 0.0 | 200,000.0 | View |