WALT DAVID R

CIK 00012052364 companiesBILLERICA, MA

SEC Profile

Transactions

Companies

Filings

CIK

0001205236

Recent Transactions

50 trades

Award
Quanterix Corp$QTRX
Common Stock
2026-01-02+1,215→ 1,872,890 total
Award
Quanterix Corp$QTRX
Common Stock
2025-10-01$5.54/sh+2,594→ 1,871,675 total
Award
Quanterix Corp$QTRX
Common Stock
2025-07-01$6.69/sh+2,148→ 1,869,081 total
Purchase
Quanterix Corp$QTRX
Common Stock
2025-06-13$6.14/sh+123,990→ 1,866,933 total
Purchase
Quanterix Corp$QTRX
Common Stock
2025-06-12$6.23/sh+36,010→ 1,742,943 total
Purchase
Quanterix Corp$QTRX
Common Stock
2025-06-09$5.34/sh+78,131→ 1,706,933 total
Purchase
Quanterix Corp$QTRX
Common Stock
2025-06-06$5.43/sh+131,869→ 1,628,802 total
Award
Quanterix Corp$QTRX
Common Stock
2025-04-01$6.67/sh+2,156→ 1,496,933 total
Award
Quanterix Corp$QTRX
Common Stock
2025-01-02+7,435→ 1,494,777 total
Award
Quanterix Corp$QTRX
Stock Option (Right to Buy)
2025-01-02+15,821→ 15,821 total
Purchase
Quanterix Corp$QTRX
Common Stock
2024-08-20$13.29/sh+47,000→ 1,487,342 total
Award
Quanterix Corp$QTRX
Stock Option (Right to Buy)
2024-01-02+6,412→ 6,412 total
Award
Quanterix Corp$QTRX
Common Stock
2024-01-02+2,947→ 1,442,342 total
Gift
Quanterix Corp$QTRX
Common Stock
2023-03-09−1,000→ 1,440,342 total
Award
Quanterix Corp$QTRX
Common Stock
2023-01-03+8,083→ 1,439,395 total
Award
Quanterix Corp$QTRX
Stock Option (Right to Buy)
2023-01-03+12,124→ 12,124 total
Gift
Quanterix Corp$QTRX
Common Stock
2022-10-12−1,000→ 1,441,342 total
Purchase
Quanterix Corp$QTRX
Common Stock
2022-08-10$8.62/sh+150,000→ 1,431,312 total
Award
Quanterix Corp$QTRX
Common Stock
2022-01-03+2,668→ 1,281,312 total
Award
Quanterix Corp$QTRX
Stock Option (Right to Buy)
2022-01-03+4,002→ 4,002 total
Award
Quanterix Corp$QTRX
Common Stock
2021-01-04+2,270→ 1,278,644 total
Award
Quanterix Corp$QTRX
Stock Option (Right to Buy)
2021-01-04+7,900→ 7,900 total
Award
EXICURE, INC.$XCUR
Stock Option (right to buy)
2020-06-04+21,693→ 21,693 total
Purchase
Quanterix Corp$QTRX
Common Stock
2020-03-13$16.66/sh+54,064→ 1,276,374 total
Purchase
EXICURE, INC.$XCUR
Common Stock
2020-03-13$1.21/sh+291,066→ 2,058,777 total
Award
Quanterix Corp$QTRX
Common Stock
2020-01-02+2,270→ 1,222,310 total
Award
Quanterix Corp$QTRX
Stock Option (Right to Buy)
2020-01-02+7,900→ 7,900 total
Purchase
EXICURE, INC.$XCUR
Common Stock
2019-08-02$2.00/sh+1,000,000→ 1,767,711 total
Award
EXICURE, INC.$XCUR
Stock Option (right to buy)
2019-06-14+21,693→ 21,693 total
Award
Quanterix Corp$QTRX
Stock Option (Right to Buy)
2019-01-02+7,900→ 7,900 total
Award
Quanterix Corp$QTRX
Common Stock
2019-01-02+2,270→ 1,220,040 total
Award
Quanterix Corp$QTRX
Common Stock
2018-08-07+2,270→ 1,217,770 total
Award
Quanterix Corp$QTRX
Stock Option (Right to Buy)
2018-08-07+7,900→ 7,900 total
Award
EXICURE, INC.$XCUR
Stock Option (right to buy)
2018-06-19+21,693→ 21,693 total
Conversion
Quanterix Corp$QTRX
Common Stock
2017-12-11+86,517→ 516,177 total
Conversion
Quanterix Corp$QTRX
Series D Preferred Stock
2017-12-11−435,967→ 0 total
Conversion
Quanterix Corp$QTRX
Series A-2 Preferred Stock
2017-12-11−278,068→ 0 total
Conversion
Quanterix Corp$QTRX
Series B Preferred Stock
2017-12-11−1,076,642→ 0 total
Purchase
Quanterix Corp$QTRX
Common Stock
2017-12-11$15.00/sh+200,000→ 1,215,500 total
Conversion
Quanterix Corp$QTRX
Common Stock
2017-12-11+32,959→ 429,660 total
Conversion
Quanterix Corp$QTRX
Common Stock
2017-12-11+28,691→ 879,853 total
Conversion
Quanterix Corp$QTRX
Series C Preferred Stock
2017-12-11−92,215→ 0 total
Conversion
Quanterix Corp$QTRX
Series A-1 Preferred Stock
2017-12-11−105,931→ 0 total
Conversion
Quanterix Corp$QTRX
Common Stock
2017-12-11+334,985→ 851,162 total
Conversion
Quanterix Corp$QTRX
Common Stock
2017-12-11+135,647→ 1,015,500 total
Exercise of In-Money
Quanterix Corp$QTRX
Series C Preferred Stock
2017-11-29+3,060→ 91,508 total
Exercise of In-Money
Quanterix Corp$QTRX
Warrant to Purchase Series C Preferred Stock (right to buy)
2017-11-29−3,060→ 707 total
Exercise of In-Money
Quanterix Corp$QTRX
Series C Preferred Stock
2017-11-29+4,327→ 88,448 total
Exercise of In-Money
Quanterix Corp$QTRX
Series C Preferred Stock
2017-11-29+707→ 92,215 total
Exercise of In-Money
Quanterix Corp$QTRX
Warrant to Purchase Series C Preferred Stock (right to buy)
2017-11-29−4,327→ 3,767 total

Companies

Recent Filings

Address

C/O QUANTERIX CORPORATION, 900 MIDDLESEX TURNPIKE

BILLERICA, MA, 01821

View on SEC.gov