SEC Insider Transactions from Frichtl Mark.

Last updated: 2026-05-15 23:10 UTC | Total transactions: 57

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.

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Transaction Date Company Ticker Insider Name Title Transaction Type Security Shares Price Shares Owned Following Total Shares Outstanding % of Owned % of Outstanding
May 15, 2026 Ouster, Inc. $OUST Frichtl Mark Chief Technology Officer M Non-Qualified Stock Option 4316 $0.00 50,063.0000 60,005,219 7.94% 0.01%
May 13, 2026 Ouster, Inc. $OUST Frichtl Mark Chief Technology Officer M Non-Qualified Stock Option 21341 $0.00 94,379.0000 60,005,219 18.44% 0.04%
May 13, 2026 Ouster, Inc. $OUST Frichtl Mark Chief Technology Officer M Non-Qualified Stock Option 31434 $0.00 0.0000 60,005,219 100.00% 0.05%
May 13, 2026 Ouster, Inc. $OUST Frichtl Mark Chief Technology Officer S Common Stock 13659 $34.00 628,638.0000 60,005,219 2.13% 0.02%
May 13, 2026 Ouster, Inc. $OUST Frichtl Mark Chief Technology Officer S Common Stock 32500 $33.00 642,297.0000 60,005,219 4.82% 0.05%
May 13, 2026 Ouster, Inc. $OUST Frichtl Mark Chief Technology Officer S Common Stock 2500 $33.00 674,797.0000 60,005,219 0.37% 0.00%
May 13, 2026 Ouster, Inc. $OUST Frichtl Mark Chief Technology Officer S Common Stock 35000 $32.00 677,297.0000 60,005,219 4.91% 0.06%
May 13, 2026 Ouster, Inc. $OUST Frichtl Mark Chief Technology Officer S Common Stock 21341 $34.00 712,297.0000 60,005,219 2.91% 0.04%
May 13, 2026 Ouster, Inc. $OUST Frichtl Mark Chief Technology Officer M Common Stock 21341 $14.22 733,638.0000 60,005,219 3.00% 0.04%
May 13, 2026 Ouster, Inc. $OUST Frichtl Mark Chief Technology Officer S Common Stock 31434 $31.09 712,297.0000 60,005,219 4.23% 0.05%
May 13, 2026 Ouster, Inc. $OUST Frichtl Mark Chief Technology Officer M Common Stock 31434 $2.13 743,731.0000 60,005,219 4.41% 0.05%
May 14, 2026 Ouster, Inc. $OUST Frichtl Mark Chief Technology Officer M Non-Qualified Stock Option 40000 $0.00 54,379.0000 60,005,219 42.38% 0.07%
May 15, 2026 Ouster, Inc. $OUST Frichtl Mark Chief Technology Officer S Common Stock 4316 $36.00 628,638.0000 60,005,219 0.68% 0.01%
May 15, 2026 Ouster, Inc. $OUST Frichtl Mark Chief Technology Officer M Common Stock 4316 $14.22 632,954.0000 60,005,219 0.69% 0.01%
May 14, 2026 Ouster, Inc. $OUST Frichtl Mark Chief Technology Officer S Common Stock 40000 $35.00 628,638.0000 60,005,219 5.98% 0.07%
May 14, 2026 Ouster, Inc. $OUST Frichtl Mark Chief Technology Officer M Common Stock 40000 $14.22 668,638.0000 60,005,219 6.36% 0.07%
May 5, 2026 Ouster, Inc. $OUST Frichtl Mark Chief Technology Officer M Common Stock 13451 $2.13 725,748.0000 60,005,219 1.89% 0.02%
May 5, 2026 Ouster, Inc. $OUST Frichtl Mark Chief Technology Officer M Non-Qualified Stock Option 13451 $0.00 31,434.0000 60,005,219 29.97% 0.02%
May 4, 2026 Ouster, Inc. $OUST Frichtl Mark Chief Technology Officer M Non-Qualified Stock Option 21149 $0.00 44,885.0000 60,005,219 32.03% 0.04%
May 4, 2026 Ouster, Inc. $OUST Frichtl Mark Chief Technology Officer S Common Stock 21149 $30.13 712,297.0000 60,005,219 2.88% 0.04%
May 5, 2026 Ouster, Inc. $OUST Frichtl Mark Chief Technology Officer S Common Stock 13451 $30.00 712,297.0000 60,005,219 1.85% 0.02%
May 4, 2026 Ouster, Inc. $OUST Frichtl Mark Chief Technology Officer M Common Stock 21149 $2.13 733,446.0000 60,005,219 2.97% 0.04%
April 22, 2026 Ouster, Inc. $OUST Frichtl Mark Chief Technology Officer M Common Stock 400 $2.13 712,697.0000 60,005,219 0.06% 0.00%
April 22, 2026 Ouster, Inc. $OUST Frichtl Mark Chief Technology Officer S Common Stock 400 $30.00 712,297.0000 60,005,219 0.06% 0.00%
April 22, 2026 Ouster, Inc. $OUST Frichtl Mark Chief Technology Officer M Non-Qualified Stock Option 400 $0.00 66,034.0000 60,005,219 0.60% 0.00%
April 21, 2026 Ouster, Inc. $OUST Frichtl Mark Chief Technology Officer S Common Stock 30000 $28.11 742,297.0000 60,005,219 3.88% 0.05%
April 20, 2026 Ouster, Inc. $OUST Frichtl Mark Chief Technology Officer M Common Stock 60000 $2.13 772,297.0000 60,005,219 8.42% 0.10%
April 20, 2026 Ouster, Inc. $OUST Frichtl Mark Chief Technology Officer S Common Stock 30000 $26.08 742,297.0000 60,005,219 3.88% 0.05%
April 20, 2026 Ouster, Inc. $OUST Frichtl Mark Chief Technology Officer S Common Stock 30000 $27.08 712,297.0000 60,005,219 4.04% 0.05%
April 21, 2026 Ouster, Inc. $OUST Frichtl Mark Chief Technology Officer M Common Stock 60000 $2.13 772,297.0000 60,005,219 8.42% 0.10%
April 21, 2026 Ouster, Inc. $OUST Frichtl Mark Chief Technology Officer S Common Stock 30000 $29.02 712,297.0000 60,005,219 4.04% 0.05%
April 20, 2026 Ouster, Inc. $OUST Frichtl Mark Chief Technology Officer M Non-Qualified Stock Option 60000 $0.00 126,434.0000 60,005,219 32.18% 0.10%
April 21, 2026 Ouster, Inc. $OUST Frichtl Mark Chief Technology Officer M Non-Qualified Stock Option 60000 $0.00 66,434.0000 60,005,219 47.46% 0.10%
April 17, 2026 Ouster, Inc. $OUST Frichtl Mark Chief Technology Officer M Common Stock 30000 $2.13 742,297.0000 60,005,219 4.21% 0.05%
April 17, 2026 Ouster, Inc. $OUST Frichtl Mark Chief Technology Officer M Non-Qualified Stock Option 30000 $0.00 186,434.0000 60,005,219 13.86% 0.05%
April 17, 2026 Ouster, Inc. $OUST Frichtl Mark Chief Technology Officer S Common Stock 30000 $25.15 712,297.0000 60,005,219 4.04% 0.05%
April 15, 2026 Ouster, Inc. $OUST Frichtl Mark Chief Technology Officer S Common Stock 20000 $24.00 712,297.0000 60,005,219 2.73% 0.03%
April 15, 2026 Ouster, Inc. $OUST Frichtl Mark Chief Technology Officer M Common Stock 20000 $2.13 732,297.0000 60,005,219 2.81% 0.03%
April 14, 2026 Ouster, Inc. $OUST Frichtl Mark Chief Technology Officer S Common Stock 40000 $22.76 712,297.0000 60,005,219 5.32% 0.07%
April 14, 2026 Ouster, Inc. $OUST Frichtl Mark Chief Technology Officer M Common Stock 40000 $2.13 752,297.0000 60,005,219 5.62% 0.07%
April 15, 2026 Ouster, Inc. $OUST Frichtl Mark Chief Technology Officer M Non-Qualified Stock Option 20000 $0.00 216,434.0000 60,005,219 8.46% 0.03%
April 14, 2026 Ouster, Inc. $OUST Frichtl Mark Chief Technology Officer M Non-Qualified Stock Option 40000 $0.00 236,434.0000 60,005,219 14.47% 0.07%
April 11, 2026 Ouster, Inc. $OUST Frichtl Mark Chief Technology Officer A Common Stock 75415 $0.00 712,297.0000 60,005,219 11.84% 0.13%
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 4545 $9.78 512,621.0000 0 0.89% 0.00%
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%
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 $5.84 398,757.0000 0 6.89% 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%
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%