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William P. Donnelly Insider Profile

4 Followers
William P. Donnelly, Director at Quanterix, holds 169.37K shares in Quanterix (Ticker: QTRX), holds 13.35K shares in T Rowe Price (Ticker: TROW), holds 56.83K shares in Ingersoll Rand (Ticker: IR).
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William P. Donnelly

William P. Donnelly
Quanterix (QTRX)
Director

Ranked #104,966 out of 109,349 Corporate Insiders

Profitable Transactions

7%
3 out of 45 Profitable Transactions

Average Return

-21.80%
Average return per transaction
Time Frame
1 Year
Compare to
No Benchmark
How are Insiders Ranked?

Insider Holdings

$76M
91.58%
5.96%
1.82%
0.64%
A breakdown of William P. Donnelly's holdings
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Insider Roles

Mettler-Toledo
(MTD)
EVP
Ingersoll Rand
(IR)
Director
T Rowe Price
(TROW)
Director
Quanterix
(QTRX)
Director
Roles that William P. Donnelly holds in companies
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Most Profitable Insider Trade

Stock:
Quanterix
(QTRX)
Rating:Informative Buy
Date:Aug 14, 2026 - Today
Return:+10.40%
The most profitable trade made by William P. Donnelly
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William P. Donnelly's Trading History

Company Name
Last Transaction Date
Insider Position
Last Transaction
Last Transaction Amount
Holding Value
QTRX
Quanterix
Oct 02, 2026
Director
Uninformative Buy
23.75K
$492.01K
TROW
T Rowe Price
Sep 30, 2026
Director
Uninformative Buy
17.04K
$1.39M
MTD
Mettler-Toledo
Nov 29, 2018
EVP
Uninformative Buy
646.32K
$69.94M
IR
Ingersoll Rand
Mar 02, 2026
Director
Uninformative Buy
286.33K
$4.55M
List of latest transactions for each holding click on a transaction to see William P. Donnelly's performance on stock
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William P. Donnelly insider profile FAQ

What is the percentage of profitable transactions made by William P. Donnelly?
The percentage of profitable transactions made by William P. Donnelly is 7%.
    What is the average return per transaction made by William P. Donnelly?
    The average return per transaction made by William P. Donnelly is -21.80%.
      What stocks does William P. Donnelly hold?
      William P. Donnelly holds: QTRX, TROW, MTD, IR stocks.
        What was William P. Donnelly’s latest transaction?
        William P. Donnelly latest transaction was an Uninformative Buy of $23.75K.
          What was William P. Donnelly's most profitable transaction?
          William P. Donnelly’s most profitable transaction was an Informative Buy of QTRX stock on August 14, 2026. The return on the trade was 10.40%.
            What is William P. Donnelly's role in Quanterix?
            William P. Donnelly's role in Quanterix is Director.
              How can I follow the stock ratings of top corporate insiders?
              Head over to our Expert Center to see a list of the Top 100 corporate insiders and follow the corporate insiders of your choice. Visit their profiles for more details about their stock transactions and see how they perform on a stock-by-stock basis.