Jeffrey Thomas Elliott Exercises Options at Quanterix Corp (QTRX) — SEC Form 4, Aug 20, 2026

SEC Form 4 · No Market Transaction

Option Exercise

Derivative exercise — no open market transaction.

Reporting Owner

Jeffrey Thomas Elliott

Director

TXN 2026-08-19 · FILED 2026-08-20

Equity Position 15.3K sh 11,390 → 15,345

Equity Change +34.7% shares held after vs before

Filing Lag 1 business day within 2-day SEC deadline

Form 4 · Statement of Changes in Beneficial Ownership

Quanterix Corp

QTRX CIK 0001503274

Reporting Owner

Name	Relationship
Jeffrey Thomas Elliott CIK 0001689757	Director

Jeffrey Thomas Elliott at Quanterix Corp Full insider history

Bought (12 mo) —

Sold (12 mo) —

More from this insider at Quanterix Corp

Non-Derivative Securities Transactions

Title	Date	Type	Shares	Price	Net Total	Post-Txn	Ownership
Common StockF1	2026-08-19	M - Exercise	3,955 A		—	15,345	Direct

Derivative Securities Transactions

Title	Strike	Date	Type	Shares	Price	Expiration	Underlying	Ownership
Restricted Stock UnitF2 F2	$0.00	2026-08-19	M - Exercise	3,955 D	$0.00		3,955 Common Stock	Direct

Footnotes (2)

F1: Restricted stock units convert into common stock on a one-for-one basis. Show more
F2: On August 19, 2024, the reporting person was granted 11,985 restricted stock units, vesting 33%, 33%, and 34% on the first, second, and third anniversaries of the grant date, respectively. Show more

Institutional Holders

Largest by reported value

5%+ Holders · 13D/G 4 filers

Latest Schedule 13D/G per filer; stakes the filer reported closed are left out.

Other insiders at Quanterix Corp

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