DONNELLY WILLIAM P purchased $286K of QTRX (indirect holdings)
DONNELLY WILLIAM P purchased 99,400 indirectly-held shares of Quanterix Corp (QTRX) at an average of $2.88 ($2.75–$2.93, $0.29M total) across 2 trades over 2026-08-12 to 2026-08-13.
How this was made
The 30-second read
Why it matters
The newest fact is the director’s indirect open-market purchase of 99,400 shares across two trades at specified prices, filed on 2026-08-14.
Market read
This provides a fresh insider-buy datapoint for QTRX, but it is unlikely to be a standalone driver of price without accompanying company-specific catalysts.
What to watch
The filing does not state the rationale, whether the shares were acquired through a trust, or whether there are concurrent sales; traders may want to check for other recent Form 4 activity around the same period.
Background
The article is an SEC Form 4 insider transaction disclosure for Quanterix (QTRX).
Ticker impact
Quanterix disclosed a director’s indirect open-market purchase of 99,400 shares at $2.7500 to $2.9300 (weighted avg $2.8808).
Likely limited near-term impact; any effect should be small and fade unless followed by additional disclosures or company-specific news.
Form 4 insider buys can be informative, but this filing provides no new operational, financial, or regulatory information, and the transaction size is moderate relative to typical market-moving events.
Market effects
No direct sector read-through; this is a single-company insider transaction.
None indicated.
None indicated.
Counterpoint
Indirect holdings and lack of a 10b5-1 plan detail can reduce interpretability; the buy may reflect diversification or pre-existing arrangements rather than a new conviction.
Key entities
- issuerQuanterix Corp
Subject of the Form 4 insider transaction disclosure.
- insiderDonnelly William P
Director who reported an indirect open-market purchase.
