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buyNotable cluster of 3

David R Walt bought $985k of QTRX

director at Quanterix Corp. 160,000 shares at an average of $6.16, traded Jun 12, 2025, filed Jun 13, 2025.

Conviction score
63
Value
$985k
160,000 shares
Holdings after
1,866,933
+9% from before
From 52-week low
-
no price yet
From 52-week high
-
no price yet

Score components

  • Role
    Director
    +15
  • Trade size
    $985k at market
    +25
  • Relative to holdings
    Holdings up 9%
    +3
  • Price context
    No price history yet
    0
  • Cluster
    3 insiders buying within 14 days
    +15
  • Repeat buying
    2 buys in 90 days
    +5
  • Track record
    Too few past buys to judge (0 with prices)
    0

What happened after comparable buys

Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.

Rows in this filing

Every transaction in Form 4 0001562180-25-004820, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Jun 12, 2025POpen-market purchase
Common Stock
+36,010$6.23$224k1,742,943Jun 13, 2025
Jun 13, 2025POpen-market purchase
Common Stock
+123,990$6.14$761k1,866,933Jun 13, 2025

Related signals

Other insiders at Quanterix Corp and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
22Weak
QTRXbuy
Quanterix Corp
Vandana Sriram
Chief Financial Officer
$20k
4,150 shares
+5%
56Moderate
QTRXbuy 3
Quanterix Corp
Masoud Toloue
President & CEO
$249k
45,900 shares
+10%
58Moderate
QTRXbuy 3
Quanterix Corp
William P Donnelly
Executive Chair
$506k
93,113 shares
+203%
58Moderate
QTRXbuy 3
Quanterix Corp
David R Walt
director
$1.1M
210,000 shares
+14%

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.

David R Walt bought $985k of QTRX | InsiderTell