InsiderTrades

BLAKE KATRYN

SEC CIK 1505740 · EDGAR

Buying vs selling by month open-market trades, last 24 months, all 3 companies
BoughtSold

Companies

TickerCompanyTitleHoldingBoughtSoldTradesFirstLast
TWSTTwist Bioscience CorpDir 17.2K — $275.3K 32025-08-052026-08-12
TRIPTripAdvisor, Inc.Dir 99.9K — — 62022-06-142026-06-29
ALLYAlly Financial Inc.Dir 39.0K — — 32021-07-092022-01-07

Most active insiders at TWST, 12 months

#InsiderTitleBoughtSold
1 Leproust Emily M.CEO, Dir —$92.09M
2 Finn Patrick JohnPres, COO —$17.48M
3 Cho DennisSee Remarks —$7.13M
4 Green PaulaSVP of Human Resources —$5.67M
5 Laponis AdamCFO —$2.65M
6 CHESS ROBERTDir —$2.62M
7 WERNER ROBERT F.CAO —$1.29M
8 JOHANNESSEN JANDir —$953.3K
9 Starovasnik Melissa A.Dir —$282.4K
10 BLAKE KATRYNDir —$275.3K

Transactions 12

Type
Reset
X Filed Traded Ticker Company Insider Title Type Price Qty Owned ΔOwn Value
2026-08-14 16:12 2026-08-12 TWST Twist Bioscience Corp BLAKE KATRYN Dir S - Sale $122.88 -2,240 17.2K -12% -$275.3K
2026-07-01 19:41 2026-06-29 TRIP TripAdvisor, Inc. BLAKE KATRYN Dir A - Grant $0.00 +17.8K 99.9K +22% $0
A 2026-07-01 19:03 2025-06-18 TRIP TripAdvisor, Inc. BLAKE KATRYN Dir A - Grant $0.00 +19.2K 82.0K +30% $0
2026-02-09 2026-02-05 TWST Twist Bioscience Corp BLAKE KATRYN Dir A - Grant $0.00 +5,095 19.4K +35% $0
2025-08-07 2025-08-05 TWST Twist Bioscience Corp BLAKE KATRYN Dir A - Grant $0.00 +14.4K 14.4K New $0
2025-06-20 2025-06-18 TRIP TripAdvisor, Inc. BLAKE KATRYN Dir A - Grant $0.00 +19.2K 95.7K +25% $0
2024-06-13 2024-06-11 TRIP TripAdvisor, Inc. BLAKE KATRYN Dir A - Grant $0.00 +13.6K 62.9K +28% $0
2023-06-08 2023-06-06 TRIP TripAdvisor, Inc. BLAKE KATRYN Dir A - Grant $0.00 +15.1K 49.3K +44% $0
2022-06-16 2022-06-14 TRIP TripAdvisor, Inc. BLAKE KATRYN Dir A - Grant $0.00 +12.8K 34.1K +60% $0
2022-01-11 2022-01-07 ALLY Ally Financial Inc. BLAKE KATRYN Dir A - Grant $0.00 +683 39.0K +2% $0
2021-10-12 2021-10-07 ALLY Ally Financial Inc. BLAKE KATRYN Dir A - Grant $0.00 +637 38.4K +2% $0
2021-07-12 2021-07-09 ALLY Ally Financial Inc. BLAKE KATRYN Dir A - Grant $0.00 +653 37.7K +2% $0

Purchase Sale Sale after option exercise All abbreviations