William P. Donnelly

Sits on 3 boards. Last updated September 28, 2026

Time on boards

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

10 years of board service in total across 3 boards, counting each seat separately. Longest: Ingersoll Rand Inc., 3 years.

3 years · Since 2023
Quanterix Corporation Director · Executive Chair
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
Oct 1, 2026 Quanterix Corporation Grant or award +6,964 $3.41 $23,747
Sep 29, 2026 T. Rowe Price Group Inc. Grant or award +164 $104.51 $17,139
Aug 17, 2026 Quanterix Corporation Option exercise +2,802 — —
Aug 13, 2026 Quanterix Corporation Open-market purchase +72,245 $2.93 $211,678
Aug 12, 2026 Quanterix Corporation Open-market purchase +27,155 $2.75 $74,676
Jul 1, 2026 Quanterix Corporation Grant or award +5,472 $4.34 $23,748
Jun 30, 2026 T. Rowe Price Group Inc. Grant or award +576 — —
Jun 29, 2026 T. Rowe Price Group Inc. Grant or award +142 $114.38 $16,205
May 8, 2026 T. Rowe Price Group Inc. Grant or award +1,899 — —
Apr 1, 2026 Quanterix Corporation Grant or award +6,178 — —
Mar 30, 2026 T. Rowe Price Group Inc. Grant or award +152 $89.03 $13,540
Feb 26, 2026 Ingersoll Rand Inc. Option exercise +3,029 — —
Jan 2, 2026 Quanterix Corporation Grant or award +2,377 — —
Dec 31, 2025 T. Rowe Price Group Inc. Grant or award +621 — —
Dec 30, 2025 T. Rowe Price Group Inc. Grant or award +119 $103.64 $12,288

Questions about William P. Donnelly

What boards is William P. Donnelly on?

William P. Donnelly sits on the boards of Ingersoll Rand Inc., Quanterix Corporation and T. Rowe Price Group Inc.

How long has William P. Donnelly served on boards?

Our records show at least 10 years of board service across 3 boards, the earliest from 2023.

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