// company-profile
Quanterix Corp Insider Trading
QTRXEvery SEC Form 4 insider trading filing for Quanterix Corp (QTRX) — open-market buys and sells by directors and officers, option exercises, and cluster activity, updated as each filing is reported to the SEC.
curl "https://api.form4api.com/v1/transactions?ticker=QTRX" -H "X-Api-Key: YOUR_API_KEY"// activity-summary
Recent insider activity is bullish. Over the last 30 days, 13 insiders purchased shares versus 6 sales. Buying was led by Miller Michael Francis.
// 90-day insight
Over the last 90 days, Quanterix Corp insiders bought $39K (36 transactions) and sold $5K (14 transactions).
- Most active insider: Miller Michael Francis with 35 transactions totaling $4K.
- Largest single purchase: $24K by DONNELLY WILLIAM P on Jul 1, 2026.
Activity skews bullish — buys outpace sales.
Institutional Ownership
Top 13F-HR holders of Quanterix Corp as of 2026-06-30
Data source: quarterly 13F-HR filings — institutional holders report positions within 45 days of quarter end. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Jul 31, 2026 | Miller Michael Francis | QTRX | Tax Withholding | 39 | $3.48 | $0K |
| Jul 31, 2026 | Miller Michael Francis | QTRX | Option Exercise | 130 | $0.00 | $0K |
| Jul 31, 2026 | Miller Michael Francis | QTRX | Option Exercise | 130 | — | — |
| Jul 15, 2026 | Miller Michael Francis | QTRX | Option Exercise | 135 | $0.00 | $0K |
| Jul 15, 2026 | Miller Michael Francis | QTRX | Option Exercise | 135 | — | — |
45 more transactions hidden
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