Who
William P. Donnelly
Director
Company insider
Files Form 4 as: Executive Chair, Quanterix; Director, T. Rowe Price Group; Director, Ingersoll Rand; Executive Vice President, Mettler-Toledo International.
In numbers
- Trades disclosed
- 668
- Buys
- 5
- Sells
- 96
- Bought
- $2.6M
- Sold
- $147.5M
- Companies
- 4
- Companies where not an officer
- 2
- First trade
- 19 Apr 2006
- Last trade
- 1 Oct 2026
- Last filed
- 2 Oct 2026
Companies traded
Activity over time
1 Nov 2024 – 1 Oct 2026
Buys above the line, sells below, each month.
Every trade
| Traded | Company | What | Amount | |
|---|---|---|---|---|
| 1 Oct 2026filed 2 Oct 2026 | QTRX QuanterixLife-science tools | SEC FORM 4 Code A | $24K6,964 at $3.41 | filing |
| 29 Sep 2026filed 30 Sep 2026 | TROW T. Rowe Price GroupCapital Markets & Asset Management | SEC FORM 4 Code A | $17K163.993 at $104.51 | filing |
| 29 Sep 2026filed 30 Sep 2026 | TROW T. Rowe Price GroupCapital Markets & Asset Management | SEC FORM 4 Code A | $17K163.99 at $104.51 | filing |
| 17 Aug 2026filed 19 Aug 2026 | QTRX QuanterixLife-science tools | SEC FORM 4 Code M | —2,802 | filing |
| 17 Aug 2026filed 19 Aug 2026 | QTRX Quanterixoption or derivative · Life-science tools | SEC FORM 4 Code M | —2,802 at $0.00 | filing |
| 17 Aug 2026filed 19 Aug 2026 | QTRX Quanterixoption or derivative · Life-science tools | SEC FORM 4 Code M | —2,802 at $0.00 | filing |
| 17 Aug 2026filed 19 Aug 2026 | QTRX QuanterixLife-science tools | SEC FORM 4 Code M | —2,802 | filing |
| 13 Aug 2026filed 14 Aug 2026 | QTRX QuanterixLife-science tools | SEC FORM 4 Bought | $212K72,245 at $2.93 | filing |
| 13 Aug 2026filed 14 Aug 2026 | QTRX QuanterixLife-science tools | SEC FORM 4 Bought | $212K72,245 at $2.93 | filing |
| 12 Aug 2026filed 14 Aug 2026 | QTRX QuanterixLife-science tools | SEC FORM 4 Bought | $75K27,155 at $2.75 | filing |
| 12 Aug 2026filed 14 Aug 2026 | QTRX QuanterixLife-science tools | SEC FORM 4 Bought | $75K27,155 at $2.75 | filing |
| 1 Jul 2026filed 2 Jul 2026 | QTRX QuanterixLife-science tools | SEC FORM 4 Code A | $24K5,472 at $4.34 | filing |
| 1 Jul 2026filed 2 Jul 2026 | QTRX QuanterixLife-science tools | SEC FORM 4 Code A | $24K5,472 at $4.34 | filing |
| 30 Jun 2026filed 1 Jul 2026 | TROW T. Rowe Price GroupCapital Markets & Asset Management | SEC FORM 4 Code A | —576 at $0.00 | filing |
| 30 Jun 2026filed 1 Jul 2026 | TROW T. Rowe Price GroupCapital Markets & Asset Management | SEC FORM 4 Code A | —576 at $0.00 | filing |
| 29 Jun 2026filed 1 Jul 2026 | TROW T. Rowe Price GroupCapital Markets & Asset Management | SEC FORM 4 Code A | $16K141.685 at $114.38 | filing |
| 29 Jun 2026filed 1 Jul 2026 | TROW T. Rowe Price GroupCapital Markets & Asset Management | SEC FORM 4 Code A | $16K141.68 at $114.38 | filing |
| 8 May 2026filed 11 May 2026 | TROW T. Rowe Price GroupCapital Markets & Asset Management | SEC FORM 4 Code A | —1,899 at $0.00 | filing |
| 8 May 2026filed 11 May 2026 | TROW T. Rowe Price GroupCapital Markets & Asset Management | SEC FORM 4 Code A | —1,899 at $0.00 | filing |
| 1 Apr 2026filed 7 Apr 2026 | QTRX QuanterixLife-science tools | SEC FORM 4 Code A | —6,178 at $0.00 | filing |
The newest 500 lines are listed; the numbers count every line.
News
Twist Bioscience (NASDAQ:TWST) versus Quanterix (NASDAQ:QTRX) Financial AnalysisQTRX · tickerreport.com · 15 Oct 2026
0 headlines in the last 90 days name William P. Donnelly; 1 article from the last 14 days about the 1 company they traded most, at most three about any one of them.