Stefan Constantin Ionel
CIK: 0001940928
Primary company: Amprius Technologies, Inc. (AMPX)
Stefan Constantin Ionel is a corporate insider at Amprius Technologies, Inc. (AMPX) filing SEC Form 4 transactions. 37 transactions, totaling $0 in purchases and $3,359,339 in sales. Source: SEC EDGAR.
Companies
Transaction History
Source: SEC EDGAR Form 4 insider transaction filings.
Company | Type | Shares | Price | Value | Shares After | Date | SEC |
|---|---|---|---|---|---|---|---|
| Sale | 3,208 | $17.19 | $55K | 801,310 | 5/27/2026 Filed: 5/27/2026 | Filing → | |
| Sale | 28,812 | $14.79 | $426K | 804,518 | 5/21/2026 Filed: 5/21/2026 | Filing → | |
| Exercise | 39,600 | $0.05 | $2K | 0 | 1/28/2026 Filed: 1/28/2026 | Filing → | |
| Exercise | 90 | $0.62 | $56 | 0 | 1/28/2026 Filed: 1/28/2026 | Filing → | |
| Sale | 39,690 | $12.00 | $476K | 748,696 | 1/28/2026 Filed: 1/28/2026 | Filing → | |
| Exercise | 39,600 | $0.05 | $2K | 788,386 | 1/28/2026 Filed: 1/28/2026 | Filing → | |
| Exercise | 90 | $0.62 | $56 | 748,786 | 1/28/2026 Filed: 1/28/2026 | Filing → | |
| Exercise | 125,000 | - | - | 310,962 | 12/11/2025 Filed: 12/15/2025 | Filing → | |
| Sale | 198,255 | $10.51 | $2.08M | 748,696 | 12/11/2025 Filed: 12/15/2025 | Filing → | |
| Exercise | 125,000 | $0.05 | $6K | 946,951 | 12/11/2025 Filed: 12/15/2025 | Filing → | |
| Sale | 25,024 | $10.08 | $252K | 821,951 | 11/21/2025 Filed: 11/25/2025 | Filing → | |
| Sale | 19,159 | $6.82 | $131K | 846,975 | 8/21/2025 Filed: 8/25/2025 | Filing → | |
| Sale | 20,366 | $2.43 | $50K | 866,134 | 5/21/2025 Filed: 5/23/2025 | Filing → | |
| Award | 461,540 | - | - | 886,500 | 3/19/2025 Filed: 3/21/2025 | Filing → | |
| Exercise | 3,471 | $0.98 | $3K | 0 | 3/14/2025 Filed: 3/18/2025 | Filing → | |
| Exercise | 3,471 | $0.98 | $3K | 424,960 | 3/14/2025 Filed: 3/18/2025 | Filing → | |
| Sale | 9,066 | $3.13 | $28K | 421,489 | 2/21/2025 Filed: 2/24/2025 | Filing → | |
| Sale | 8,575 | $1.96 | $17K | 430,555 | 11/21/2024 Filed: 11/22/2024 | Filing → | |
| Award | 139,613 | - | - | 139,613 | 10/23/2024 Filed: 10/25/2024 | Filing → | |
| Award | 41,653 | - | - | 41,653 | 10/23/2024 Filed: 10/25/2024 | Filing → |
Type
Sale
Shares
3,208
Price
$17.19
Value
$55K
Type
Sale
Shares
28,812
Price
$14.79
Value
$426K
Type
Exercise
Shares
39,600
Price
$0.05
Value
$2K
Type
Exercise
Shares
90
Price
$0.62
Value
$56
Type
Sale
Shares
39,690
Price
$12.00
Value
$476K
Type
Exercise
Shares
39,600
Price
$0.05
Value
$2K
Type
Exercise
Shares
90
Price
$0.62
Value
$56
Type
Exercise
Shares
125,000
Price
-
Value
-
Type
Sale
Shares
198,255
Price
$10.51
Value
$2.08M
Type
Exercise
Shares
125,000
Price
$0.05
Value
$6K
Type
Sale
Shares
25,024
Price
$10.08
Value
$252K
Type
Sale
Shares
19,159
Price
$6.82
Value
$131K
Type
Sale
Shares
20,366
Price
$2.43
Value
$50K
Type
Award
Shares
461,540
Price
-
Value
-
Type
Exercise
Shares
3,471
Price
$0.98
Value
$3K
Type
Exercise
Shares
3,471
Price
$0.98
Value
$3K
Type
Sale
Shares
9,066
Price
$3.13
Value
$28K
Type
Sale
Shares
8,575
Price
$1.96
Value
$17K
Type
Award
Shares
139,613
Price
-
Value
-
Type
Award
Shares
41,653
Price
-
Value
-
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