De Geus Aart insider trades
De Geus Aart has filed 45 Form 4s with the SEC that we hold, for Synopsys INC (SNPS) (EXECUTIVE CHAIR, Director) and Applied Materials INC /DE (AMAT) (Director). Across all of them we count 0 purchases worth $0 and 23 sales worth $228.9M reported on Form 4. In the last 12 months: 0 purchases ($0) and 3 sales ($32.5M). The largest single trade was a sale of 96,277 shares of Synopsys INC worth $34.6M, dated 2021-12-10. Of 3 sales filed since we began reading the 10b5-1 checkbox, 3 (100%) were marked as made under a 10b5-1 trading plan. The first filing on our record is dated 2021-09-02 and the latest 2026-09-02.
Synopsys INC (SNPS)
| Trade date | Code | Shares | Value as filed | Filed |
|---|---|---|---|---|
| 2021-12-10 | S, sale reported on Form 4 | 66,059 | $23.7M | 2021-12-14 |
| 2021-12-10 | S, sale reported on Form 4 | 96,277 | $34.6M | 2021-12-14 |
| 2021-12-13 | S, sale reported on Form 4 | 64,622 | $23.4M | 2021-12-14 |
| 2023-06-06 | S, sale reported on Form 4 | 40,000 | $17.8M | 2023-06-08 |
| 2023-06-13 | S, sale reported on Form 4 | 40,000 | $17.9M | 2023-06-15 |
| 2023-06-21 | S, sale reported on Form 4 | 40,839 | $17.5M | 2023-06-22 |
| 2024-06-24 | S, sale reported on Form 4 | 2,535 | $1.5M | 2024-06-26 |
| 2024-06-25 | S, sale reported on Form 4 | 4,212 | $2.5M | 2024-06-26 |
| 2024-06-26 | S, sale reported on Form 4 | 2,899 | $1.7M | 2024-06-28 |
| 2024-06-27 | S, sale reported on Form 4 | 8,158 | $4.9M | 2024-06-28 |
| 2024-06-28 | S, sale reported on Form 4 | 11,185 | $6.8M | 2024-07-02 |
| 2024-07-01 | S, sale reported on Form 4 | 5,893 | $3.5M | 2024-07-02 |
| 2024-07-02 | S, sale reported on Form 4 | 4,340 | $2.6M | 2024-07-05 |
| 2024-07-03 | S, sale reported on Form 4 | 2,789 | $1.7M | 2024-07-05 |
| 2024-07-05 | S, sale reported on Form 4 | 27,753 | $17.2M | 2024-07-09 |
| 2024-07-08 | S, sale reported on Form 4 | 5,448 | $3.4M | 2024-07-09 |
| 2024-07-10 | S, sale reported on Form 4 | 8,648 | $5.4M | 2024-07-12 |
| 2024-07-11 | S, sale reported on Form 4 | 4,588 | $2.9M | 2024-07-12 |
| 2024-07-15 | S, sale reported on Form 4 | 493 | $306.0K | 2024-07-17 |
| 2025-03-06 | S, sale reported on Form 4 | 15,705 | $7.0M | 2025-03-10 |
| 2026-08-28 | S, sale reported on Form 4 | 25,000 | $11.1M | 2026-08-31 |
| 2026-08-31 | S, sale reported on Form 4 | 25,000 | $11.0M | 2026-09-02 |
| 2026-09-01 | S, sale reported on Form 4 | 24,641 | $10.3M | 2026-09-02 |
Applied Materials INC /DE (AMAT)
No purchase or sale of common stock reported here; these filings cover grants, option exercises or other codes.
Counted from the Form 4 filings this reporting owner (SEC CIK 1249802) filed on EDGAR. Values are the transaction values as filed. See every filing on EDGAR, or browse insider buying and today's insider purchases.
Source: U.S. Securities and Exchange Commission (EDGAR) and other official
government data · Updated 2026-10-12 ·
For informational purposes only, not investment advice.
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