Dennis A. Ausiello

Sits on 3 boards. Last updated September 28, 2026

Time on boards

Boards served
3
Current seats
3
Board service
11 years
Director since
2023

11 years of board service in total across 3 boards, counting each seat separately. Longest: Alnylam Pharmaceuticals Inc., 3 years.

3 years · Since 2023
3 years · Since 2023
3 years · Since 2023

Shareholder support

Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.

Insider trades

All notable trades →

From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.

Date Company Transaction Shares Price Value
May 20, 2026 Alnylam Pharmaceuticals Inc. Grant or award +671 — —
Aug 14, 2025 Alnylam Pharmaceuticals Inc. Option exercise +9,000 $72.01 $648,090
Aug 14, 2025 Alnylam Pharmaceuticals Inc. Option exercise +5,153 $128.31 $661,181
Aug 14, 2025 Alnylam Pharmaceuticals Inc. Option exercise +4,581 $148.77 $681,515
Aug 14, 2025 Alnylam Pharmaceuticals Inc. Option exercise +5,228 $151.22 $790,578
Aug 14, 2025 Alnylam Pharmaceuticals Inc. Option exercise +4,032 $171.95 $693,302
Aug 14, 2025 Alnylam Pharmaceuticals Inc. Option exercise +3,454 $189.87 $655,811
Aug 14, 2025 Alnylam Pharmaceuticals Inc. Open-market sale −1,985 $430.81 $855,158
Aug 14, 2025 Alnylam Pharmaceuticals Inc. Open-market sale −1,938 $432.94 $839,038
Aug 14, 2025 Alnylam Pharmaceuticals Inc. Open-market sale −2,098 $434.50 $911,581
Aug 14, 2025 Alnylam Pharmaceuticals Inc. Open-market sale −7,675 $435.40 $3,341,695
Aug 14, 2025 Alnylam Pharmaceuticals Inc. Open-market sale −5,358 $436.00 $2,336,088
Aug 14, 2025 Alnylam Pharmaceuticals Inc. Open-market sale −1,922 $437.56 $840,990
Aug 14, 2025 Alnylam Pharmaceuticals Inc. Open-market sale −2,086 $438.34 $914,377
Aug 14, 2025 Alnylam Pharmaceuticals Inc. Open-market sale −5,302 $439.27 $2,329,010

Questions about Dennis A. Ausiello

What boards is Dennis A. Ausiello on?

Dennis A. Ausiello sits on the boards of Alnylam Pharmaceuticals Inc., Rani Therapeutics Holdings Inc. and Seres Therapeutics Inc.

How long has Dennis A. Ausiello served on boards?

Our records show at least 11 years of board service across 3 boards, the earliest from 2023.

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