Stefan Constantin Ionel

CIK 00019409281 companyFREMONT, CA

SEC Profile

Transactions

Companies

Filings

CIK

0001940928

Recent Transactions

44 trades

Exercise/Conversion
Amprius Technologies, Inc.$AMPX
Common stock
2026-01-23$0.05/sh+1,600→ 750,296 total
Exercise/Conversion
Amprius Technologies, Inc.$AMPX
Stock Option (right to buy)
2026-01-23−1,600→ 39,600 total
Sale
Amprius Technologies, Inc.$AMPX
Common stock
2026-01-23$12.00/sh−1,600→ 748,696 total
Exercise/Conversion
Amprius Technologies, Inc.$AMPX
Common stock
2026-01-22$0.05/sh+253,928→ 1,002,624 total
Exercise/Conversion
Amprius Technologies, Inc.$AMPX
Stock Option (right to buy)
2026-01-22−253,928→ 41,200 total
Sale
Amprius Technologies, Inc.$AMPX
Common stock
2026-01-22$12.04/sh−492,827→ 748,696 total
Exercise/Conversion
Amprius Technologies, Inc.$AMPX
Stock Option (right to buy)
2026-01-22−166,104→ 0 total
Exercise/Conversion
Amprius Technologies, Inc.$AMPX
Stock Option (right to buy)
2026-01-22−72,795→ 0 total
Exercise/Conversion
Amprius Technologies, Inc.$AMPX
Common stock
2026-01-22$0.05/sh+166,104→ 1,241,523 total
Exercise/Conversion
Amprius Technologies, Inc.$AMPX
Common stock
2026-01-22$0.45/sh+72,795→ 1,075,419 total
Exercise/Conversion
Amprius Technologies, Inc.$AMPX
Common stock
2026-01-21$0.05/sh+15,834→ 806,093 total
Exercise/Conversion
Amprius Technologies, Inc.$AMPX
Stock Option (right to buy)
2026-01-21−15,883→ 166,104 total
Exercise/Conversion
Amprius Technologies, Inc.$AMPX
Stock Option (right to buy)
2026-01-21−15,834→ 295,128 total
Exercise/Conversion
Amprius Technologies, Inc.$AMPX
Stock Option (right to buy)
2026-01-21−41,563→ 90 total
Sale
Amprius Technologies, Inc.$AMPX
Common stock
2026-01-21$12.00/sh−73,280→ 748,696 total
Exercise/Conversion
Amprius Technologies, Inc.$AMPX
Common stock
2026-01-21$0.05/sh+15,883→ 821,976 total
Exercise/Conversion
Amprius Technologies, Inc.$AMPX
Common stock
2026-01-21$0.62/sh+41,563→ 790,259 total
Sale
Amprius Technologies, Inc.$AMPX
Common stock
2025-11-21$10.08/sh−25,024→ 821,951 total
Sale
Amprius Technologies, Inc.$AMPX
Common stock
2025-08-21$6.82/sh−19,159→ 846,975 total
Sale
Amprius Technologies, Inc.$AMPX
Common stock
2025-05-21$2.43/sh−20,366→ 866,134 total
Award
Amprius Technologies, Inc.$AMPX
Common stock
2025-03-19+461,540→ 886,500 total
Exercise/Conversion
Amprius Technologies, Inc.$AMPX
Common stock
2025-03-14$0.98/sh+3,471→ 424,960 total
Exercise/Conversion
Amprius Technologies, Inc.$AMPX
Stock Option (right to buy)
2025-03-14−3,471→ 0 total
Sale
Amprius Technologies, Inc.$AMPX
Common stock
2025-02-21$3.13/sh−9,066→ 421,489 total
Sale
Amprius Technologies, Inc.$AMPX
Common stock
2024-11-21$1.96/sh−8,575→ 430,555 total
Award
Amprius Technologies, Inc.$AMPX
Stock Option (right to buy)
2024-10-23+3,471→ 3,471 total
Award
Amprius Technologies, Inc.$AMPX
Stock Option (right to buy)
2024-10-23+41,653→ 41,653 total
Award
Amprius Technologies, Inc.$AMPX
Stock Option (right to buy)
2024-10-23+139,613→ 139,613 total
Sale
Amprius Technologies, Inc.$AMPX
Common stock
2024-08-21$1.04/sh−8,800→ 386,168 total
Sale
Amprius Technologies, Inc.$AMPX
Common stock
2024-05-22$1.36/sh−4,121→ 394,968 total
Sale
Amprius Technologies, Inc.$AMPX
Common stock
2024-05-21$1.33/sh−5,272→ 399,089 total
Award
Amprius Technologies, Inc.$AMPX
Common stock
2024-03-19+374,570→ 404,361 total
Sale
Amprius Technologies, Inc.$AMPX
Common stock
2023-09-15$3.89/sh−33,630→ 29,791 total
Sale
Amprius Technologies, Inc.$AMPX
Common stock
2023-09-14$3.66/sh−46,370→ 63,421 total
Exercise/Conversion
Amprius Technologies, Inc.$AMPX
Stock Option (right to buy)
2023-09-09−80,000→ 435,962 total
Exercise/Conversion
Amprius Technologies, Inc.$AMPX
Common stock
2023-09-09$0.05/sh+80,000→ 109,791 total
Exercise/Conversion
Amprius Technologies, Inc.$AMPX
Common stock
2022-12-14$0.05/sh+30,000→ 30,000 total
Tax Payment
Amprius Technologies, Inc.$AMPX
Common stock
2022-12-14$7.20/sh−209→ 29,791 total
Exercise/Conversion
Amprius Technologies, Inc.$AMPX
Stock Option (right to buy)
2022-12-14−30,000→ 515,962 total
Award
Amprius Technologies, Inc.$AMPX
Stock Option (right to buy)
2022-09-14+545,962→ 545,962 total
Award
Amprius Technologies, Inc.$AMPX
Stock Option (right to buy)
2022-09-14+72,795→ 72,795 total
Award
Amprius Technologies, Inc.$AMPX
Stock Option (right to buy)
2022-09-14+181,987→ 181,987 total
Award
Amprius Technologies, Inc.$AMPX
Stock Option (right to buy)
2022-09-14+218,385→ 218,385 total
Award
Amprius Technologies, Inc.$AMPX
Stock Option (right to buy)
2022-09-14+72,795→ 72,795 total

Companies

Amprius Technologies, Inc.
Chief Technology Officer
$AMPX

Recent Filings

Address

C/O AMPRIUS TECHNOLOGIES, INC., 1180 PAGE AVENUE

FREMONT, CA, 94538

View on SEC.gov