Colleen F. Reitan

Sits on 2 boards. Last updated September 28, 2026

Time on boards

Boards served
2
Current seats
2
Board service
7 years
Director since
2023

7 years of board service in total across 2 boards, counting each seat separately. Longest: Alnylam Pharmaceuticals Inc., 3 years.

3 years ยท Since 2023
3 years ยท Since 2023

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
Sep 9, 2025 Alnylam Pharmaceuticals Inc. Option exercise +18,000 $100.65 $1,811,700
Sep 9, 2025 Alnylam Pharmaceuticals Inc. Open-market sale โˆ’1,645 $457.44 $752,489
Sep 9, 2025 Alnylam Pharmaceuticals Inc. Open-market sale โˆ’1,888 $458.86 $866,328
Sep 9, 2025 Alnylam Pharmaceuticals Inc. Open-market sale โˆ’1,403 $459.73 $645,001
Sep 9, 2025 Alnylam Pharmaceuticals Inc. Open-market sale โˆ’473 $460.71 $217,916
Sep 9, 2025 Alnylam Pharmaceuticals Inc. Open-market sale โˆ’2,290 $461.92 $1,057,797
Sep 9, 2025 Alnylam Pharmaceuticals Inc. Open-market sale โˆ’1,652 $463.00 $764,876
Sep 9, 2025 Alnylam Pharmaceuticals Inc. Open-market sale โˆ’799 $464.36 $371,024
Sep 9, 2025 Alnylam Pharmaceuticals Inc. Open-market sale โˆ’222 $471.25 $104,618
Sep 9, 2025 Alnylam Pharmaceuticals Inc. Open-market sale โˆ’823 $472.82 $389,131
Sep 9, 2025 Alnylam Pharmaceuticals Inc. Open-market sale โˆ’838 $474.22 $397,396
Sep 9, 2025 Alnylam Pharmaceuticals Inc. Open-market sale โˆ’951 $474.85 $451,582
Sep 9, 2025 Alnylam Pharmaceuticals Inc. Open-market sale โˆ’972 $476.31 $462,973
Sep 9, 2025 Alnylam Pharmaceuticals Inc. Open-market sale โˆ’1,183 $477.47 $564,847
Sep 9, 2025 Alnylam Pharmaceuticals Inc. Open-market sale โˆ’1,450 $478.67 $694,072

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