NYSE · CIK 0001899287
AMPX Amprius Technologies, Inc.
Insider trading from SEC Form 4. Last filing Mar 24, 2026. Close $9.44 on Oct 9, 2026, +21% from the 52-week low and -59% from the high.
Last 90 days
Net insider value
$0
no open-market trades
Buys
0
$0 by 0 insiders
Sells
0
$0 by 0 insiders
Insiders on file
11
with a Form 4 at this company
Price and insider trades, last year
AMPXOct 9, 2026 · close 9.44
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
Open-market buys and sells at Amprius Technologies, Inc., scored.
| Score | Insider | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 55Moderate | Kang Sun Chief Executive Officer sell | $4.1M 217,869 shares | -79% | +802% from low-4% from high | |
| 60Notable | Wen Hsuan HSIEH director sell | $7.6M 413,146 shares | -90% | +922% from low-2% from high | |
| 60Notable | Steven Chu director sell | $5.9M 322,197 shares | -110% | +911% from low0% from high | |
| 43Moderate | Kang Sun Chief Executive Officer sell | $622k 61,251 shares | -4% | +473% from low-31% from high | |
| 36Weak | Constantin Ionel Stefan Chief Technology Officer sell | $258k 25,366 shares | -3% | +473% from low-31% from high | |
| 6Weak | Constantin Ionel Stefan Chief Technology Officer sell | $476k 39,690 shares | -5% | +573% from low-18% from high | |
| 33Weak | Constantin Ionel Stefan Chief Technology Officer sell | $6.8M 567,707 shares | -69% | +533% from low-23% from high | |
| 23Weak | Kang Sun Chief Executive Officer sell | $11M 993,733 shares | -42% | +518% from low-25% from high | |
| 23Weak | Kang Sun Chief Executive Officer sell | $5.1M 506,267 shares | -27% | +462% from low-31% from high | |
| 10Weak | Constantin Ionel Stefan Chief Technology Officer sell | $2.1M 198,255 shares | -21% | +589% from low-22% from high | |
| 54Moderate | Kang Sun Chief Executive Officer sell | $692k 68,655 shares | -5% | +509% from low-31% from high | |
| 36Weak | Constantin Ionel Stefan Chief Technology Officer sell | $252k 25,024 shares | -3% | +509% from low-31% from high | |
| 33Weak | Kang Sun Chief Executive Officer sell | $11M 1,000,000 shares | -40% | +528% from low-29% from high | |
| 57Moderate | Kang Sun Chief Executive Officer sell | $448k 65,654 shares | -4% | +738% from low-22% from high | |
| 49Moderate | Sandra Wallach Chief Financial Officer sell | $194k 28,390 shares | -3% | +738% from low-22% from high | |
| 41Moderate | Constantin Ionel Stefan Chief Technology Officer sell | $131k 19,159 shares | -2% | +738% from low-22% from high | |
| 51Moderate | Kang Sun Chief Executive Officer sell | $170k 69,786 shares | -4% | +199% from low-37% from high | |
| 45Moderate | Sandra Wallach Chief Financial Officer sell | $67k 27,595 shares | -3% | +199% from low-37% from high | |
| 37Weak | Constantin Ionel Stefan Chief Technology Officer sell | $50k 20,366 shares | -2% | +199% from low-37% from high | |
| 50Moderate | Kang Sun Chief Executive Officer sell | $108k 34,353 shares | -3% | +270% from low-22% from high | |
| 44Moderate | Sandra Wallach Chief Financial Officer sell | $57k 18,142 shares | -3% | +270% from low-22% from high | |
| 35Weak | Constantin Ionel Stefan Chief Technology Officer sell | $28k 9,066 shares | -2% | +270% from low-22% from high | |
| 41Moderate | Jonathan Bornstein President of Amprius Lab sell | $42k 13,527 shares | -3% | +270% from low-22% from high | |
| 48Moderate | Kang Sun Chief Executive Officer sell | $66k 33,779 shares | -3% | - | |
| 43Moderate | Sandra Wallach Chief Financial Officer sell | $34k 17,158 shares | -2% | - | |
| 30Weak | Constantin Ionel Stefan Chief Technology Officer sell | $17k 8,575 shares | -2% | - | |
| 54Moderate | Jonathan Bornstein President of Amprius Lab sell | $322k 166,706 shares | -14% | - |
Planned sales
Form 144 notices filed before a sale of restricted or control stock, newest first. The sale itself usually reaches a Form 4 within days. All planned sales
| Filed | Seller | Shares | Value | Sale date | Past 3 months |
|---|---|---|---|---|---|
| Nov 21, 2024 | KANG SUN Officer, Director | 33,779 0.03% of outstanding | $67k | Nov 21, 2024 | none |
| Nov 21, 2024 | SANDRA WALLACH Officer | 17,158 0.02% of outstanding | $34k | Nov 21, 2024 | none |
| Nov 21, 2024 | Constantin Ionel Stefan Officer | 8,575 0.01% of outstanding | $17k | Nov 21, 2024 | none |
| Nov 21, 2024 | JONATHAN BORNSTEIN Officer | 18,170 0.02% of outstanding | $36k | Nov 21, 2024 | $286k |
| Nov 21, 2024 | JONATHAN G BORNSTEIN PHYLLIS BROCK TRUST Officer | 15,000 0.01% of outstanding | $29k | Nov 21, 2024 | $257k |
| Nov 20, 2024 | JONATHAN G BORNSTEIN PHYLLIS BROCK TRUST Officer | 133,536 0.13% of outstanding | $257k | Nov 20, 2024 | none |
| Nov 12, 2024 | AMPRIUS, INC. 10% Stockholder, Parent Company-Private Inc. | 379,240 0.36% of outstanding | $858k | Nov 11, 2024 | $3.0M |
| Nov 8, 2024 | AMPRIUS, INC. 10% Stockholder, Parent Company-Private Inc. | 600,000 0.57% of outstanding | $969k | Nov 8, 2024 | $2.0M |
| Nov 7, 2024 | AMPRIUS, INC. 10% Stockholder, Parent Company-Private Inc. | 40,386 0.04% of outstanding | $53k | Nov 7, 2024 | $1.9M |
| Oct 25, 2024 | MIRRO JUSTIN E Former Director | 2,073,042 1.87% of outstanding | $3.0M | Oct 24, 2024 | $642k |
Transactions
The last 100 rows filed, every code.
| Date | Insider | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Mar 23, 2026 | Kang Sun Chief Executive Officer | SOpen-market sale Common stockindirect: See Footnote10b5-1 | -152,823 | $18.69 | $2.9M | 121,452 | Mar 24, 2026 |
| Mar 23, 2026 | Kang Sun Chief Executive Officer | SOpen-market sale Common stockindirect: See Footnote10b5-1 | -65,046 | $19.06 | $1.2M | 56,406 | Mar 24, 2026 |
| Mar 12, 2026 | Wen Hsuan HSIEH director | MOption exercise Common stock | +270,251 | $2.61 | $705k | 457,590 | Mar 13, 2026 |
| Mar 12, 2026 | Wen Hsuan HSIEH director | SOpen-market sale Common stock | -282,500 | $18.55 | $5.2M | 175,090 | Mar 13, 2026 |
| Mar 12, 2026 | Wen Hsuan HSIEH director | SOpen-market sale Common stock | -130,646 | $18.22 | $2.4M | 44,444 | Mar 13, 2026 |
| Mar 12, 2026 | Wen Hsuan HSIEH director | MOption exercise Stock Option (right to buy)derivative | -270,251 | $2.61 | $705k | 0 | Mar 13, 2026 |
| Mar 10, 2026 | Steven Chu director | MOption exercise Common stock | +104,132 | $0.62 | $65k | 293,971 | Mar 12, 2026 |
| Mar 10, 2026 | Steven Chu director | SOpen-market sale Common stock | -166,632 | $17.92 | $3.0M | 127,339 | Mar 12, 2026 |
| Mar 12, 2026 | Steven Chu director | MOption exercise Common stock | +86,143 | $2.61 | $225k | 213,482 | Mar 12, 2026 |
| Mar 12, 2026 | Steven Chu director | MOption exercise Common stock | +69,422 | $0.62 | $43k | 282,904 | Mar 12, 2026 |
| Mar 12, 2026 | Steven Chu director | SOpen-market sale Common stock | -100,000 | $18.65 | $1.9M | 182,904 | Mar 12, 2026 |
| Mar 12, 2026 | Steven Chu director | SOpen-market sale Common stock | -50,000 | $18.21 | $911k | 132,904 | Mar 12, 2026 |
| Mar 12, 2026 | Steven Chu director | SOpen-market sale Common stock | -5,565 | $18.53 | $103k | 127,339 | Mar 12, 2026 |
| Mar 10, 2026 | Steven Chu director | MOption exercise Stock Option (right to buy)derivative | -104,132 | $0.62 | $65k | 69,422 | Mar 12, 2026 |
| Mar 12, 2026 | Steven Chu director | MOption exercise Stock Option (right to buy)derivative | -86,143 | $2.61 | $225k | 184,108 | Mar 12, 2026 |
| Mar 12, 2026 | Steven Chu director | MOption exercise Stock Option (right to buy)derivative | -69,422 | $0.62 | $43k | 0 | Mar 12, 2026 |
| Mar 4, 2026 | Ricardo C. Rodriguez Chief Financial Officer | AGrant or award Common stock | +150,000 | $0.00 | $0 | 350,000 | Mar 6, 2026 |
| Mar 4, 2026 | Constantin Ionel Stefan Chief Technology Officer | AGrant or award Common stock | +110,000 | $0.00 | $0 | 833,330 | Mar 6, 2026 |
| Mar 4, 2026 | Thomas M Stepien Chief Executive Officer | AGrant or award Common stock | +150,000 | $0.00 | $0 | 760,000 | Mar 6, 2026 |
| Feb 23, 2026 | Kang Sun Chief Executive Officer | SOpen-market sale Common stock | -61,251 | $10.16 | $622k | 1,342,400 | Feb 24, 2026 |
| Feb 23, 2026 | Constantin Ionel Stefan Chief Technology Officer | SOpen-market sale Common stock | -25,366 | $10.16 | $258k | 723,330 | Feb 24, 2026 |
| Jan 28, 2026 | Constantin Ionel Stefan Chief Technology Officer | MOption exercise Common stock10b5-1 | +90 | $0.62 | $56 | 748,786 | Jan 30, 2026 |
| Jan 28, 2026 | Constantin Ionel Stefan Chief Technology Officer | MOption exercise Common stock10b5-1 | +39,600 | $0.05 | $1,980 | 788,386 | Jan 30, 2026 |
| Jan 28, 2026 | Constantin Ionel Stefan Chief Technology Officer | SOpen-market sale Common stock10b5-1 | -39,690 | $12.00 | $476k | 748,696 | Jan 30, 2026 |
| Jan 28, 2026 | Constantin Ionel Stefan Chief Technology Officer | MOption exercise Stock Option (right to buy)derivative10b5-1 | -90 | $0.00 | $0 | 0 | Jan 30, 2026 |
| Jan 28, 2026 | Constantin Ionel Stefan Chief Technology Officer | MOption exercise Stock Option (right to buy)derivative10b5-1 | -39,600 | $0.00 | $0 | 0 | Jan 30, 2026 |
| Jan 21, 2026 | Constantin Ionel Stefan Chief Technology Officer | MOption exercise Common stock10b5-1 | +41,563 | $0.62 | $26k | 790,259 | Jan 23, 2026 |
| Jan 21, 2026 | Constantin Ionel Stefan Chief Technology Officer | MOption exercise Common stock10b5-1 | +15,834 | $0.05 | $792 | 806,093 | Jan 23, 2026 |
| Jan 21, 2026 | Constantin Ionel Stefan Chief Technology Officer | MOption exercise Common stock10b5-1 | +15,883 | $0.05 | $794 | 821,976 | Jan 23, 2026 |
| Jan 21, 2026 | Constantin Ionel Stefan Chief Technology Officer | SOpen-market sale Common stock10b5-1 | -73,280 | $12.00 | $879k | 748,696 | Jan 23, 2026 |
| Jan 22, 2026 | Constantin Ionel Stefan Chief Technology Officer | MOption exercise Common stock10b5-1 | +253,928 | $0.05 | $13k | 1,002,624 | Jan 23, 2026 |
| Jan 22, 2026 | Constantin Ionel Stefan Chief Technology Officer | MOption exercise Common stock10b5-1 | +72,795 | $0.45 | $33k | 1,075,419 | Jan 23, 2026 |
| Jan 22, 2026 | Constantin Ionel Stefan Chief Technology Officer | MOption exercise Common stock10b5-1 | +166,104 | $0.05 | $8,305 | 1,241,523 | Jan 23, 2026 |
| Jan 22, 2026 | Constantin Ionel Stefan Chief Technology Officer | SOpen-market sale Common stock10b5-1 | -492,827 | $12.04 | $5.9M | 748,696 | Jan 23, 2026 |
| Jan 23, 2026 | Constantin Ionel Stefan Chief Technology Officer | MOption exercise Common stock10b5-1 | +1,600 | $0.05 | $80 | 750,296 | Jan 23, 2026 |
| Jan 23, 2026 | Constantin Ionel Stefan Chief Technology Officer | SOpen-market sale Common stock10b5-1 | -1,600 | $12.00 | $19k | 748,696 | Jan 23, 2026 |
| Jan 21, 2026 | Constantin Ionel Stefan Chief Technology Officer | MOption exercise Stock Option (right to buy)derivative10b5-1 | -41,563 | $0.00 | $0 | 90 | Jan 23, 2026 |
| Jan 21, 2026 | Constantin Ionel Stefan Chief Technology Officer | MOption exercise Stock Option (right to buy)derivative10b5-1 | -15,834 | $0.00 | $0 | 295,128 | Jan 23, 2026 |
| Jan 21, 2026 | Constantin Ionel Stefan Chief Technology Officer | MOption exercise Stock Option (right to buy)derivative10b5-1 | -15,883 | $0.00 | $0 | 166,104 | Jan 23, 2026 |
| Jan 22, 2026 | Constantin Ionel Stefan Chief Technology Officer | MOption exercise Stock Option (right to buy)derivative10b5-1 | -253,928 | $0.00 | $0 | 41,200 | Jan 23, 2026 |
| Jan 22, 2026 | Constantin Ionel Stefan Chief Technology Officer | MOption exercise Stock Option (right to buy)derivative10b5-1 | -72,795 | $0.00 | $0 | 0 | Jan 23, 2026 |
| Jan 22, 2026 | Constantin Ionel Stefan Chief Technology Officer | MOption exercise Stock Option (right to buy)derivative10b5-1 | -166,104 | $0.00 | $0 | 0 | Jan 23, 2026 |
| Jan 23, 2026 | Constantin Ionel Stefan Chief Technology Officer | MOption exercise Stock Option (right to buy)derivative10b5-1 | -1,600 | $0.00 | $0 | 39,600 | Jan 23, 2026 |
| Jan 16, 2026 | Kang Sun Chief Executive Officer | MOption exercise Common stock10b5-1 | +850,338 | $2.50 | $2.1M | 2,253,989 | Jan 20, 2026 |
| Jan 16, 2026 | Kang Sun Chief Executive Officer | MOption exercise Common stock10b5-1 | +100,210 | $1.78 | $178k | 2,354,199 | Jan 20, 2026 |
| Jan 16, 2026 | Kang Sun Chief Executive Officer | SOpen-market sale Common stock10b5-1 | -950,548 | $11.07 | $11M | 1,403,651 | Jan 20, 2026 |
| Jan 20, 2026 | Kang Sun Chief Executive Officer | MOption exercise Common stock10b5-1 | +43,185 | $1.78 | $77k | 1,446,836 | Jan 20, 2026 |
| Jan 20, 2026 | Kang Sun Chief Executive Officer | SOpen-market sale Common stock10b5-1 | -43,185 | $11.03 | $476k | 1,403,651 | Jan 20, 2026 |
| Jan 16, 2026 | Kang Sun Chief Executive Officer | MOption exercise Stock Option (right to buy)derivative10b5-1 | -850,338 | $0.00 | $0 | 0 | Jan 20, 2026 |
| Jan 16, 2026 | Kang Sun Chief Executive Officer | MOption exercise Stock Option (right to buy)derivative10b5-1 | -100,210 | $0.00 | $0 | 1,355,690 | Jan 20, 2026 |
| Jan 20, 2026 | Kang Sun Chief Executive Officer | MOption exercise Stock Option (right to buy)derivative10b5-1 | -43,185 | $0.00 | $0 | 1,312,505 | Jan 20, 2026 |
| Jan 12, 2026 | Kang Sun Chief Executive Officer | MOption exercise Common stock10b5-1 | +180,802 | $0.62 | $112k | 1,584,453 | Jan 14, 2026 |
| Jan 12, 2026 | Kang Sun Chief Executive Officer | MOption exercise Common stock10b5-1 | +208,264 | $2.44 | $508k | 1,792,717 | Jan 14, 2026 |
| Jan 12, 2026 | Kang Sun Chief Executive Officer | MOption exercise Common stock10b5-1 | +117,201 | $2.50 | $293k | 1,909,918 | Jan 14, 2026 |
| Jan 12, 2026 | Kang Sun Chief Executive Officer | SOpen-market sale Common stock10b5-1 | -506,267 | $10.10 | $5.1M | 1,403,651 | Jan 14, 2026 |
| Jan 12, 2026 | Kang Sun Chief Executive Officer | MOption exercise Stock Option (right to buy)derivative10b5-1 | -180,802 | $0.00 | $0 | 0 | Jan 14, 2026 |
| Jan 12, 2026 | Kang Sun Chief Executive Officer | MOption exercise Stock Option (right to buy)derivative10b5-1 | -208,264 | $0.00 | $0 | 0 | Jan 14, 2026 |
| Jan 12, 2026 | Kang Sun Chief Executive Officer | MOption exercise Stock Option (right to buy)derivative10b5-1 | -117,201 | $0.00 | $0 | 850,338 | Jan 14, 2026 |
| Dec 19, 2025 | Thomas M Stepien President | AGrant or award Common stock | +200,000 | $0.00 | $0 | 610,000 | Dec 22, 2025 |
| Dec 11, 2025 | Constantin Ionel Stefan Chief Technology Officer | MOption exercise Common stock10b5-1 | +125,000 | $0.05 | $6,250 | 946,951 | Dec 15, 2025 |
| Dec 11, 2025 | Constantin Ionel Stefan Chief Technology Officer | SOpen-market sale Common stock10b5-1 | -198,255 | $10.51 | $2.1M | 748,696 | Dec 15, 2025 |
| Dec 11, 2025 | Constantin Ionel Stefan Chief Technology Officer | MOption exercise Stock Option (right to buy)derivative10b5-1 | -125,000 | $0.00 | $0 | 310,962 | Dec 15, 2025 |
| Nov 21, 2025 | Constantin Ionel Stefan Chief Technology Officer | SOpen-market sale Common stock | -25,024 | $10.08 | $252k | 821,951 | Nov 25, 2025 |
| Nov 21, 2025 | Kang Sun Chief Executive Officer | SOpen-market sale Common stock | -68,655 | $10.08 | $692k | 1,403,651 | Nov 25, 2025 |
| Nov 17, 2025 | Kang Sun Chief Executive Officer | MOption exercise Common stock10b5-1 | +202,934 | $0.98 | $199k | 1,675,240 | Nov 19, 2025 |
| Nov 17, 2025 | Kang Sun Chief Executive Officer | MOption exercise Common stock10b5-1 | +727,950 | $0.05 | $36k | 2,403,190 | Nov 19, 2025 |
| Nov 17, 2025 | Kang Sun Chief Executive Officer | MOption exercise Common stock10b5-1 | +27,463 | $0.62 | $17k | 2,430,653 | Nov 19, 2025 |
| Nov 17, 2025 | Kang Sun Chief Executive Officer | MOption exercise Common stock10b5-1 | +41,653 | $0.62 | $26k | 2,472,306 | Nov 19, 2025 |
| Nov 17, 2025 | Kang Sun Chief Executive Officer | SOpen-market sale Common stock10b5-1 | -1,000,000 | $10.60 | $11M | 1,472,306 | Nov 19, 2025 |
| Nov 17, 2025 | Kang Sun Chief Executive Officer | MOption exercise Stock Option (right to buy)derivative10b5-1 | -202,934 | $0.00 | $0 | 0 | Nov 19, 2025 |
| Nov 17, 2025 | Kang Sun Chief Executive Officer | MOption exercise Stock Option (right to buy)derivative10b5-1 | -727,950 | $0.00 | $0 | 0 | Nov 19, 2025 |
| Nov 17, 2025 | Kang Sun Chief Executive Officer | MOption exercise Stock Option (right to buy)derivative10b5-1 | -27,463 | $0.00 | $0 | 180,802 | Nov 19, 2025 |
| Nov 17, 2025 | Kang Sun Chief Executive Officer | MOption exercise Stock Option (right to buy)derivative10b5-1 | -41,653 | $0.00 | $0 | 0 | Nov 19, 2025 |
| Oct 6, 2025 | Ricardo C. Rodriguez Chief Financial Officer | AGrant or award Common stock | +200,000 | $0.00 | $0 | 200,000 | Oct 8, 2025 |
| Aug 21, 2025 | Kang Sun Chief Executive Officer | SOpen-market sale Common stock | -65,654 | $6.82 | $448k | 1,472,306 | Aug 25, 2025 |
| Aug 21, 2025 | Sandra Wallach Chief Financial Officer | SOpen-market sale Common stock | -28,390 | $6.82 | $194k | 1,005,275 | Aug 25, 2025 |
| Aug 21, 2025 | Constantin Ionel Stefan Chief Technology Officer | SOpen-market sale Common stock | -19,159 | $6.82 | $131k | 846,975 | Aug 25, 2025 |
| Jun 13, 2025 | Steven Chu director | AGrant or award Common stock | +44,444 | $0.00 | $0 | 189,839 | Jun 17, 2025 |
| Jun 13, 2025 | Kathleen A Bayless director | AGrant or award Common stock | +44,444 | $0.00 | $0 | 205,697 | Jun 17, 2025 |
| Jun 13, 2025 | Livingston Satterthwaite director | AGrant or award Common stock | +44,444 | $0.00 | $0 | 336,083 | Jun 17, 2025 |
| Jun 13, 2025 | Donald R Dixon director | AGrant or award Common stock | +44,444 | $0.00 | $0 | 394,656 | Jun 17, 2025 |
| Jun 13, 2025 | Wen Hsuan HSIEH director | AGrant or award Common stock | +44,444 | $0.00 | $0 | 187,339 | Jun 17, 2025 |
| May 21, 2025 | Kang Sun Chief Executive Officer | SOpen-market sale Common stock | -69,786 | $2.43 | $170k | 1,812,235 | May 23, 2025 |
| May 21, 2025 | Sandra Wallach Chief Financial Officer | SOpen-market sale Common stock | -27,595 | $2.43 | $67k | 1,033,665 | May 23, 2025 |
| May 21, 2025 | Constantin Ionel Stefan Chief Technology Officer | SOpen-market sale Common stock | -20,366 | $2.43 | $50k | 866,134 | May 23, 2025 |
| May 1, 2025 | Thomas M Stepien President | AGrant or award Common stock | +400,000 | $0.00 | $0 | 400,000 | May 6, 2025 |
| Mar 19, 2025 | Kang Sun Chief Executive Officer | AGrant or award Common stock | +599,400 | $0.00 | $0 | 1,882,021 | Mar 21, 2025 |
| Mar 19, 2025 | Sandra Wallach Chief Financial Officer | AGrant or award Common stock | +383,260 | $0.00 | $0 | 1,061,260 | Mar 21, 2025 |
| Mar 19, 2025 | Constantin Ionel Stefan Chief Technology Officer | AGrant or award Common stock | +461,540 | $0.00 | $0 | 886,500 | Mar 21, 2025 |
| Mar 14, 2025 | Constantin Ionel Stefan Chief Technology Officer | MOption exercise Common stock | +3,471 | $0.98 | $3,402 | 424,960 | Mar 18, 2025 |
| Mar 14, 2025 | Constantin Ionel Stefan Chief Technology Officer | MOption exercise Stock Option (right to buy)derivative | -3,471 | $0.00 | $0 | 0 | Mar 18, 2025 |
| Mar 10, 2025 | Jonathan Bornstein President of Amprius Lab | MOption exercise Common stock | +3,471 | $0.98 | $3,402 | 422,668 | Mar 12, 2025 |
| Mar 10, 2025 | Jonathan Bornstein President of Amprius Lab | MOption exercise Stock Option (right to buy)derivative | -3,471 | $0.00 | $0 | 0 | Mar 12, 2025 |
| Feb 21, 2025 | Kang Sun Chief Executive Officer | SOpen-market sale Common stock | -34,353 | $3.13 | $108k | 1,282,621 | Feb 24, 2025 |
| Feb 21, 2025 | Sandra Wallach Chief Financial Officer | SOpen-market sale Common stock | -18,142 | $3.13 | $57k | 678,000 | Feb 24, 2025 |
| Feb 21, 2025 | Constantin Ionel Stefan Chief Technology Officer | SOpen-market sale Common stock | -9,066 | $3.13 | $28k | 421,489 | Feb 24, 2025 |
| Feb 21, 2025 | Jonathan Bornstein President of Amprius Lab | SOpen-market sale Common stock | -13,527 | $3.13 | $42k | 419,197 | Feb 24, 2025 |
| Nov 21, 2024 | Kang Sun Chief Executive Officer | SOpen-market sale Common stock | -33,779 | $1.96 | $66k | 1,316,974 | Nov 22, 2024 |
| Nov 21, 2024 | Sandra Wallach Chief Financial Officer | SOpen-market sale Common stock | -17,158 | $1.96 | $34k | 696,142 | Nov 22, 2024 |
| Nov 21, 2024 | Constantin Ionel Stefan Chief Technology Officer | SOpen-market sale Common stock | -8,575 | $1.96 | $17k | 430,555 | Nov 22, 2024 |
Insiders
Everyone who has filed a Form 4 here.
- Kathleen A Baylessdirector
- Jonathan BornsteinPresident of Amprius Lab
- Steven Chudirector
- Donald R Dixondirector
- Wen Hsuan HSIEHdirector
- Ricardo C. RodriguezChief Financial Officer
- Livingston Satterthwaitedirector
- Constantin Ionel StefanChief Technology Officer
- Thomas M StepienChief Executive Officer
- Kang SunChief Executive Officer
- Sandra WallachChief Financial Officer
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.