SEC Insider Transactions from ROBINS HARLAN S.

Last updated: 2026-03-15 09:23 UTC | Total transactions: 23

Harlan S. Robins, Chief Scientific Officer at Adaptive Biotechnologies Corp ($ADPT), sold shares on the open market 10 times over the last year, totaling about $2.7 million. His most recent sale occurred on March 3, 2026. These sales rank him 2905th among 11,678 individual insiders by amount sold, below the average of $8.6 million per insider and 6.4 transactions. He made no open market purchases in 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
March 11, 2026 Adaptive Biotechnologies Corp $ADPT ROBINS HARLAN S Chief Scientific Officer S Common Stock 329600 $13.17 1,522,058.0000 163,162,107 17.80% 0.20%
March 11, 2026 Adaptive Biotechnologies Corp $ADPT ROBINS HARLAN S Chief Scientific Officer S Common Stock 140666 $13.17 1,851,658.0000 163,162,107 7.06% 0.09%
March 4, 2026 Adaptive Biotechnologies Corp $ADPT ROBINS HARLAN S Chief Scientific Officer A Common Stock 127813 $0.00 1,283,104.0000 163,162,107 11.06% 0.08%
March 6, 2026 Adaptive Biotechnologies Corp $ADPT ROBINS HARLAN S Chief Scientific Officer A Common Stock 709220 $0.00 1,992,324.0000 163,162,107 55.27% 0.43%
March 2, 2026 Adaptive Biotechnologies Corp $ADPT ROBINS HARLAN S Chief Scientific Officer S Common Stock 10000 $15.72 1,169,524.0000 163,162,107 0.85% 0.01%
March 3, 2026 Adaptive Biotechnologies Corp $ADPT ROBINS HARLAN S Chief Scientific Officer S Common Stock 14233 $16.52 1,155,291.0000 163,162,107 1.22% 0.01%
Feb. 2, 2026 Adaptive Biotechnologies Corp $ADPT ROBINS HARLAN S Chief Scientific Officer S Common Stock 34668 $18.60 1,187,644.0000 163,162,107 2.84% 0.02%
Feb. 3, 2026 Adaptive Biotechnologies Corp $ADPT ROBINS HARLAN S Chief Scientific Officer S Common Stock 8120 $19.00 1,179,524.0000 163,162,107 0.68% 0.00%
Jan. 6, 2026 Adaptive Biotechnologies Corp $ADPT ROBINS HARLAN S Chief Scientific Officer S Common Stock 10000 $16.44 1,222,312.0000 163,162,107 0.81% 0.01%
Dec. 4, 2025 Adaptive Biotechnologies Corp $ADPT ROBINS HARLAN S Chief Scientific Officer S Common Stock 10000 $16.61 1,232,312.0000 163,162,107 0.80% 0.01%
Dec. 3, 2025 Adaptive Biotechnologies Corp $ADPT ROBINS HARLAN S Chief Scientific Officer S Common Stock 27212 $18.61 1,242,312.0000 163,162,107 2.14% 0.02%
Nov. 10, 2025 Adaptive Biotechnologies Corp $ADPT ROBINS HARLAN S Chief Scientific Officer S Common Stock 10000 $14.82 1,269,524.0000 163,162,107 0.78% 0.01%
May 1, 2025 Adaptive Biotechnologies Corp $ADPT ROBINS HARLAN S Chief Scientific Officer M Common Stock 68412 $6.32 1,347,936.0000 147,101,648 5.35% 0.05%
May 1, 2025 Adaptive Biotechnologies Corp $ADPT ROBINS HARLAN S Chief Scientific Officer S Common Stock 68412 $7.35 1,279,524.0000 147,101,648 5.08% 0.05%
May 1, 2025 Adaptive Biotechnologies Corp $ADPT ROBINS HARLAN S Chief Scientific Officer M Stock Option (Right to Buy) 68412 $0.00 0.0000 147,101,648 100.00% 0.05%
March 24, 2025 Adaptive Biotechnologies Corp $ADPT ROBINS HARLAN S Chief Scientific Officer M Common Stock 1698 $6.32 1,281,222.0000 147,101,648 0.13% 0.00%
March 24, 2025 Adaptive Biotechnologies Corp $ADPT ROBINS HARLAN S Chief Scientific Officer S Common Stock 1698 $9.00 1,279,524.0000 147,101,648 0.13% 0.00%
March 24, 2025 Adaptive Biotechnologies Corp $ADPT ROBINS HARLAN S Chief Scientific Officer M Stock Option (Right to Buy) 1698 $0.00 68,412.0000 147,101,648 2.42% 0.00%
March 4, 2025 Adaptive Biotechnologies Corp $ADPT ROBINS HARLAN S Chief Scientific Officer A Common Stock 355000 $0.00 1,376,180.0000 147,101,648 34.76% 0.24%
March 5, 2025 Adaptive Biotechnologies Corp $ADPT ROBINS HARLAN S Chief Scientific Officer S Common Stock 56053 $6.99 1,279,524.0000 147,101,648 4.20% 0.04%
March 5, 2025 Adaptive Biotechnologies Corp $ADPT ROBINS HARLAN S Chief Scientific Officer S Common Stock 40603 $6.98 1,335,577.0000 147,101,648 2.95% 0.03%
March 4, 2024 Adaptive Biotechnologies Corp $ADPT ROBINS HARLAN S Chief Scientific Officer A Common Stock 354610 $0.00 1,021,180.0000 144,383,294 53.20% 0.25%
March 6, 2023 Adaptive Biotechnologies Corp $ADPT ROBINS HARLAN S Chief Scientific Officer A Common Stock 354610 $0.00 666,570.0000 142,515,917 113.67% 0.25%