WALT DAVID R
SEC insider (Form 3/4/5 filer). CIK 0001205236. Director at Quanterix Corp (QTRX). 12 reported Form 4/5 transactions since Sep 2024; latest on Jan 2, 2026. Located in BILLERICA, MA.
Companies WALT DAVID R has filed insider reports for
- Quanterix Corp (QTRX): Director
WALT DAVID R
CIK: 0001205236
Transaction Breakdown
Open Market Buys (P)5 (41.7%)
High conviction signal
Open Market Sales (S)0 (0.0%)
Position reduction
Option Exercises (M)0 (0.0%)
Derivative conversions
Awards (A)5 (41.7%)
Compensation grants
Other (G, F, J, C, D, …)2 (16.7%)
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Companies & Roles (1)
QTRX
Quanterix Corp
Director
Discretionary Trading P&L
Holdings
Transaction History (12 total)
- Jan 2, 2026QTRX
Quanterix Corp
AwardDirect1.2K shares- - Oct 1, 2025QTRX
Quanterix Corp
AwardDirect2.6K shares at avg. $5.54$14K - Jul 1, 2025QTRX
Quanterix Corp
AwardDirect2.1K shares at avg. $6.69$14K - Jun 13, 2025QTRX
Quanterix Corp
PurchaseDirect124K shares at avg. $6.14$761K - Jun 12, 2025QTRX
Quanterix Corp
PurchaseDirect36K shares at avg. $6.23$224K - Jun 9, 2025QTRX
Quanterix Corp
PurchaseDirect78.1K shares at avg. $5.34$417K - Jun 6, 2025QTRX
Quanterix Corp
PurchaseDirect131.9K shares at avg. $5.43$717K - Apr 1, 2025QTRX
Quanterix Corp
AwardDirect2.2K shares at avg. $6.67$14K - Jan 2, 2025QTRX
Quanterix Corp
AwardDirect7.4K shares- - Aug 20, 2024QTRX
Quanterix Corp
PurchaseDirect47K shares at avg. $13.29$625K
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Jan 2, 2026 | QTRX Quanterix Corp | Award | 1,215 | - | $0 | Direct |
| Oct 1, 2025 | QTRX Quanterix Corp | Award | 2,594 | $5.54 | $14,371 | Direct |
| Jul 1, 2025 | QTRX Quanterix Corp | Award | 2,148 | $6.69 | $14,370 | Direct |
| Jun 13, 2025 | QTRX Quanterix Corp | Purchase | 123,990 | $6.14 | $760,803 | Direct |
| Jun 12, 2025 | QTRX Quanterix Corp | Purchase | 36,010 | $6.23 | $224,166 | Direct |
| Jun 9, 2025 | QTRX Quanterix Corp | Purchase | 78,131 | $5.34 | $417,220 | Direct |
| Jun 6, 2025 | QTRX Quanterix Corp | Purchase | 131,869 | $5.43 | $716,576 | Direct |
| Apr 1, 2025 | QTRX Quanterix Corp | Award | 2,156 | $6.67 | $14,370 | Direct |
| Jan 2, 2025 | QTRX Quanterix Corp | Award | 7,435 | - | $0 | Direct |
| Aug 20, 2024 | QTRX Quanterix Corp | Purchase | 47,000 | $13.29 | $624,630 | Direct |
1-10 of 12 transactions