SEC Insider Transactions from Donenberg Phillip B..

Last updated: 2026-03-14 11:50 UTC | Total transactions: 8

Donenberg Phillip B. has filed 8 insider transactions across 3 companies since June 2023.

Most recent transaction: a grant/award of 1900 shares of Sensei Biotherapeutics, Inc. ($SNSE) on February 13, 2026.

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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
Feb. 13, 2026 Sensei Biotherapeutics, Inc. $SNSE Donenberg Phillip B. Not found A Stock Option (right to buy) 1900 $0.00 1,900.0000 1,261,290 9999.99% 0.15%
June 9, 2025 Tectonic Therapeutic, Inc. $TECX Donenberg Phillip B. Not found A Stock Option (Right to Buy) 10200 $0.00 10,200.0000 18,662,672 9999.99% 0.05%
June 2, 2025 Taysha Gene Therapies, Inc. $TSHA Donenberg Phillip B. Not found A Common Stock 56623 $0.00 219,954.0000 250,134,421 34.67% 0.02%
June 2, 2025 Taysha Gene Therapies, Inc. $TSHA Donenberg Phillip B. Not found A Stock Option (right to buy) 113246 $0.00 113,246.0000 250,134,421 9999.99% 0.05%
June 20, 2024 Tectonic Therapeutic, Inc. $TECX Donenberg Phillip B. Not found A Stock Option (Right to Buy) 11760 $0.00 11,760.0000 0 9999.99% 0.00%
May 29, 2024 Taysha Gene Therapies, Inc. $TSHA Donenberg Phillip B. Not found A Common Stock 49220 $0.00 163,331.0000 116,121,482 43.13% 0.04%
May 29, 2024 Taysha Gene Therapies, Inc. $TSHA Donenberg Phillip B. Not found A Stock Option (right to buy) 98440 $0.00 98,440.0000 116,121,482 9999.99% 0.08%
June 6, 2023 Tectonic Therapeutic, Inc. $TECX Donenberg Phillip B. Director A Stock Option (Right to Buy) 17643 $0.00 17,643.0000 0 9999.99% 0.00%