Mark Frichtl, Chief Technology Officer at Ouster, Inc. ($OUST), sold shares on the open market twice in the last year, totaling about $1.1 million. His most recent sale occurred on December 12, 2025. These OUST insider sales rank 4,678th among 11,678 individual insiders in our database, where the average is $8.6 million across about 6.4 transactions. Frichtl made no open market purchases during this period.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| March 25, 2026 | Ouster, Inc. | $OUST | Frichtl Mark | Chief Technology Officer | M | Non-Qualified Stock Option | 40000 | $0.00 | 276,434.0000 | 60,005,219 | 12.64% | 0.07% |
| March 25, 2026 | Ouster, Inc. | $OUST | Frichtl Mark | Chief Technology Officer | M | Common Stock | 40000 | $2.13 | 676,882.0000 | 60,005,219 | 6.28% | 0.07% |
| March 25, 2026 | Ouster, Inc. | $OUST | Frichtl Mark | Chief Technology Officer | S | Common Stock | 40000 | $20.94 | 636,882.0000 | 60,005,219 | 5.91% | 0.07% |
| March 12, 2026 | Ouster, Inc. | $OUST | Frichtl Mark | Chief Technology Officer | S | Common Stock | 15689 | $23.43 | 636,882.0000 | 60,005,219 | 2.40% | 0.03% |
| Dec. 12, 2025 | Ouster, Inc. | $OUST | Frichtl Mark | Chief Technology Officer | S | Common Stock | 15661 | $24.98 | 652,571.0000 | 60,005,219 | 2.34% | 0.03% |
| Sept. 12, 2025 | Ouster, Inc. | $OUST | Frichtl Mark | Chief Technology Officer | S | Common Stock | 25329 | $28.46 | 665,403.0000 | 53,765,990 | 3.67% | 0.05% |
| April 1, 2025 | Ouster, Inc. | $OUST | Frichtl Mark | Chief Technology Officer | A | Common Stock | 175000 | $0.00 | 688,121.0000 | 53,765,990 | 34.11% | 0.33% |
| Dec. 12, 2024 | Ouster, Inc. | $OUST | Frichtl Mark | Chief Technology Officer | P | Common Stock | 500 | $9.78 | 513,121.0000 | 0 | 0.10% | 0.00% |
| Dec. 12, 2024 | Ouster, Inc. | $OUST | Frichtl Mark | Chief Technology Officer | P | Common Stock | 4545 | $9.78 | 512,621.0000 | 0 | 0.89% | 0.00% |
| May 15, 2024 | Ouster, Inc. | $OUST | Frichtl Mark | Chief Technology Officer | P | Common Stock | 8000 | $12.34 | 505,076.0000 | 0 | 1.61% | 0.00% |
| March 28, 2024 | Ouster, Inc. | $OUST | Frichtl Mark | Chief Technology Officer | A | Common Stock | 92319 | $0.00 | 494,076.0000 | 0 | 22.98% | 0.00% |
| May 16, 2023 | Ouster, Inc. | $OUST | Frichtl Mark | Chief Technology Officer | P | Common Stock | 25700 | $5.84 | 3,749,512.0000 | 0 | 0.69% | 0.00% |
| May 16, 2023 | Ouster, Inc. | $OUST | Frichtl Mark | Chief Technology Officer | P | Common Stock | 25700 | $5.84 | 398,757.0000 | 0 | 6.89% | 0.00% |
| March 20, 2023 | Ouster, Inc. | $OUST | Frichtl Mark | Chief Technology Officer | A | Common Stock | 375000 | $0.00 | 3,718,636.0000 | 0 | 11.22% | 0.00% |