Chu Steven

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Chu Steven
CIK #0001296381
EDGAR Form CIK 2011 - 2026
3 [0001296381]
4 [0001296381]
Form 3/4/5 Subject 2011 - 2026
Chu Steven
Amprius Technologies Inc
Zymergen Inc
Insider Transaction (Form 3/4/5) Date Action Shares Price Value ($)
Amprius Technologies Inc AMPX
Common stock
2026-03-12 Sell 5,565 $18.53 103,119
Amprius Technologies Inc AMPX
Stock Option (right to buy) · derivative
2026-03-12 Option exercise 69,422 $0.62 43,042
Amprius Technologies Inc AMPX
Stock Option (right to buy) · derivative
2026-03-12 Option exercise 86,143 $2.61 224,833
Amprius Technologies Inc AMPX
Common stock
2026-03-12 Option exercise 86,143 $2.61 224,833
Amprius Technologies Inc AMPX
Common stock
2026-03-12 Option exercise 69,422 $0.62 43,042
Amprius Technologies Inc AMPX
Common stock
2026-03-12 Sell 50,000 $18.21 910,500
Amprius Technologies Inc AMPX
Common stock
2026-03-12 Sell 100,000 $18.65 1,865,000
Amprius Technologies Inc AMPX
Common stock
2026-03-10 Option exercise 104,132 $0.62 64,562
Amprius Technologies Inc AMPX
Stock Option (right to buy) · derivative
2026-03-10 Option exercise 104,132 $0.62 64,562
Amprius Technologies Inc AMPX
Common stock
2026-03-10 Sell 166,632 $17.92 2,986,045
Amprius Technologies Inc AMPX
Common stock
2025-06-13 Grant 44,444 $0.00
Amprius Technologies Inc AMPX
Stock Option (right to buy) · derivative
2024-10-23 Grant 173,554
Amprius Technologies Inc AMPX
Stock Option (right to buy) · derivative
2024-10-23 Grant 173,554
Amprius Technologies Inc AMPX
Common stock
2024-06-07 Grant 125,000 $0.00
Amprius Technologies Inc AMPX
Common stock
2023-06-09 Grant 17,895 $0.00
Zymergen Inc ZY
Stock Options · derivative
2022-10-19 Disposed to issuer 132,333 $0.00
Zymergen Inc ZY
Common Stock
2022-10-19 Disposed to issuer 50,000
Zymergen Inc ZY
Stock Options · derivative
2022-10-19 Disposed to issuer 33,333 $0.00
Amprius Technologies Inc AMPX
Stock Option (right to buy) · derivative
2022-09-14 Grant 270,251
Zymergen Inc ZY
Common Stock
2022-06-02 Grant 50,000 $0.00
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