DONNELLY WILLIAM P exercised options at QUANTERIX CORP
Option exercise — a mechanical event triggered by vesting or expiry. Not a discretionary conviction trade.
M · 1 exercise
Filed: 8/19/2026ACC: 0001207928-26-000009
0.00
Net shares
Net seller
$0.00
Total acquired
0
Open market trades
0B · 0S
2
Total transactions
2.80K acquired · 2.80K disposed
Non-Derivative Transactions1
Common Stock
Direct
Shares
+2.80K
Price / share
—
Trade value
—
% of position
1.8%
8/17/2026
159.60K→162.40K
Total
Net shares
+2.80K
Net value
$0.00
| Security | Date | Type | Shares | Price / Share | Trade Value | % of Position | Held Before | Held After |
|---|---|---|---|---|---|---|---|---|
| Common Stock Direct | 8/17/2026 | M · Option Exercise | +2.80K | — | — | 1.8% | 159.60K | 162.40K |
| Total | +2.80K | $0.00 | ||||||
Derivative Transactions1
Restricted Stock Unit
Direct
Converts to
Common Stock
2.80K shares
Shares
−2.80K
Strike price
0.00
Held after
0.00
Exercisable
—
8/17/2026
| Security | Converts To | Date | Type | Shares | Strike Price | Exercisable | Held After |
|---|---|---|---|---|---|---|---|
| Restricted Stock Unit Direct | Common Stock2.80K shares | 8/17/2026 | M · Option Exercise | −2.80K | 0.00 | — | 0.00 |