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Quanterix Corp

QTRX
Exchange
Nasdaq
Industry
Laboratory Analytical Instruments
SEC CIK
0001503274

In the last 90 days, Quanterix Corp insiders filed 1 open-market purchase and 0 sales; 132 institutions reported holding it in 13F filings for Q2 2026, worth $138.9M in total; no superinvestor holds it.

Open-market trades, last 90 days

Open-market purchases (P) and sales (S) by Quanterix Corp insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.

Open-market buys
1 filing
1 insider, $286.4K in total
Open-market sells
0 filings
Insiders trading
1
Net value
+$286.4K
Purchases minus sales

Insider roster

Directors, officers and 10% owners who have filed a Form 4 for Quanterix Corp, current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.

Insider roster for Quanterix Corp
NameTitleLast reported holdingLast filingFilings, past year
Gute James Edward Jr.Chief Commercial Officer–Sep 17, 20261
Miller Michael FrancisChief Technology Officer38,452Sep 16, 202613
Elliott Jeffrey ThomasDirector15,345Aug 20, 20262
Donnelly William PDirector162,401Aug 19, 20267
Faessler Jason F.Chief Financial Officer–Jul 16, 20261
Mendel ScottDirector24,056Jul 9, 20265
Lai Goldman MylaDirector15,041Jul 9, 20263
Sriram VandanaChief Financial Officer31,283Jun 23, 202610
Meadows BenjaminChief Commercial Officer3,500Jun 12, 20261
Cunningham EverettPresident and CEO–Jan 21, 20261
Toloue MasoudPresident & CEO507,310Jan 20, 20268
Meister Paul MDirector313,253Jan 15, 20261
Magovcevic-Liebisch IvanaDirector43,607Jan 15, 20261
Walt David RDirector1,872,890Jan 6, 20262
Flynn KarenDirector57,212Jan 6, 20261
Hampton Malcolm GarretDirector70,099Jan 6, 20262
Sachs Alan BruceDirector70,099Jan 6, 20262
Hlavinka Sarah E.Director60,070Jul 3, 20250
Madaus Martin DDirector36,908Jan 6, 20250
Olson Laurie JDirector13,738May 14, 20240
Blaser Brian JDirector19,049Jan 4, 20240
Doyle Michael ACFO and Treasurer88,332Oct 2, 20230
Crandell KeithDirector131,236Apr 4, 20230
Fry John JGeneral Counsel & Secretary37,671Aug 3, 20220
Hrusovsky E KevinExecutive Chairman910,249Jul 6, 20220
Roskey Mark T.SVP, Strategic Partnerships22,325Apr 5, 20220
Mattoon DawnSr. VP, Diagnostics36,876Apr 5, 20220
Duffy David C.SVP R&D and CTO54,730Mar 28, 20220

Insider trades

Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.

Insider trades
Filed (ET)Trade dateFiling delayInsiderTransactionSharesAvg priceValueHolding changeFlags
Aug 14, 2026 (view filing)4:01 PM ETAug 12-132 daysDonnelly William PDirectorPPurchase+99.4K$2.88+$286.4KNew position99.4K after2 lots
Jun 12, 2026 (view filing)May 1231 daysLateMeadows BenjaminChief Commercial OfficerPPurchase+3.50K$2.77+$9.70KNew position3.50K after
Sep 17, 2025 (view filing)Sep 125 daysLateSriram VandanaChief Financial OfficerPPurchase+4.15K$4.79+$19.9K+5.0%87.2K after
Jun 13, 2025 (view filing)Jun 12-131 dayWalt David RDirectorPPurchase+160.0K$6.16+$985.6K+9.4%1.87M after2 lots
Jun 10, 2025 (view filing)Jun 91 dayToloue MasoudPresident & CEOPPurchase+45.9K$5.42+$248.8K+9.7%518.9K after
Jun 9, 2025 (view filing)Jun 6-93 daysWalt David RDirectorPPurchase+210.0K$5.40+$1.13M+14.0%1.71M after2 lots
Jun 9, 2025 (view filing)Jun 63 daysDonnelly William PDirectorPPurchase+93.1K$5.44+$506.5K+202.5%139.1K after
Sep 17, 2024 (view filing)Aug 2028 daysLateWalt David RDirectorPPurchase+47.0K$13.29+$624.6K+3.3%1.49M after
Aug 15, 2024 (view filing)Aug 132 daysToloue MasoudPresident & CEOPPurchase+19.0K$10.90+$207.1K+5.7%354.1K after
May 14, 2024 (view filing)May 14Same dayOlson Laurie JDirectorSSale−1.50K$16.98−$25.5K−9.8%13.7K after10b5-1
Apr 2, 2024 (view filing)Apr 11 dayOlson Laurie JDirectorSSale−1.00K$23.50−$23.5K−6.2%15.2K after10b5-1
Feb 15, 2024 (view filing)Feb 141 dayOlson Laurie JDirectorSSale−1.50K$24.35−$36.5K−9.0%15.2K after10b5-1
Jan 4, 2024 (view filing)Jan 22 daysOlson Laurie JDirectorSSale−1.00K$26.91−$26.9K−5.6%16.7K after
Nov 14, 2023 (view filing)Nov 14Same dayOlson Laurie JDirectorSSale−1.50K$21.89−$32.8K−9.8%13.8K after10b5-1
Sep 11, 2023 (view filing)Sep 83 daysDonnelly William PDirectorPPurchase+20.2K$24.85+$502.0K+245.2%28.4K after
Aug 16, 2022 (view filing)Aug 12-154 daysDoyle Michael ACFO and TreasurerPPurchase+30.0K$10.30+$308.9K+161.2%48.6K after2 lots
Aug 16, 2022 (view filing)Aug 124 daysToloue MasoudPresident & CEOPPurchase+105.0K$10.43+$1.10M+129.9%185.8K after
Aug 11, 2022 (view filing)Aug 11Same dayHlavinka Sarah E.DirectorPPurchase+10.2K$9.89+$100.4K+63.1%26.3K after2 lots
Aug 10, 2022 (view filing)Aug 10Same dayWalt David RDirectorPPurchase+150.0K$8.62+$1.29M+11.7%1.43M after
Aug 10, 2022 (view filing)Aug 10Same dayMeister Paul MDirectorPPurchase+234.3K$8.53+$2.00M+1,279.9%252.6K after2 lots
Aug 10, 2022 (view filing)Aug 10Same dayMadaus Martin DDirectorPPurchase+89.7K$8.43+$755.9K+54.4%254.6K after
Aug 3, 2022 (view filing)Aug 12 daysToloue MasoudPresident & CEOSSale−446$15.61−$6.96K−0.5%80.8K after
Aug 3, 2022 (view filing)Jul 13-Aug 121 daysLateDoyle Michael ACFO and TreasurerSSale−471$17.96−$8.46K−2.5%18.6K after2 lots
Aug 3, 2022 (view filing)Aug 12 daysFry John JGeneral Counsel & SecretarySSale−401$15.61−$6.26K−1.1%37.7K after
Jul 6, 2022 (view filing)Jul 51 dayHrusovsky E KevinExecutive ChairmanSSale−960$16.57−$15.9K−0.1%910.2K after
Jul 6, 2022 (view filing)Jul 51 dayToloue MasoudPresident & CEOSSale−432$16.57−$7.16K−0.5%81.3K after
Jul 6, 2022 (view filing)Jul 51 dayFry John JGeneral Counsel & SecretarySSale−387$16.57−$6.41K−1.0%38.1K after
Jun 14, 2022 (view filing)Jun 131 dayToloue MasoudPresident & CEOSSale−5.56K$15.27−$85.0K−6.4%81.7K after
Jun 3, 2022 (view filing)Jun 21 dayHrusovsky E KevinExecutive ChairmanSSale−712$17.47−$12.4K−0.1%911.2K after
Jun 3, 2022 (view filing)Jun 21 dayFry John JGeneral Counsel & SecretarySSale−378$17.47−$6.60K−1.0%38.5K after
May 3, 2022 (view filing)May 21 dayHrusovsky E KevinExecutive ChairmanSSale−649$22.37−$14.5K−0.1%911.9K after2 lots
May 3, 2022 (view filing)May 21 dayFry John JGeneral Counsel & SecretarySSale−429$22.37−$9.60K−1.1%38.8K after2 lots
Apr 5, 2022 (view filing)Apr 14 daysHrusovsky E KevinChairman and CEOSSale−868$29.79−$25.9K−0.1%887.0K after
Apr 5, 2022 (view filing)Apr 14 daysRoskey Mark T.SVP, Strategic PartnershipsSSale−171$29.79−$5.09K−0.8%22.3K after
Apr 5, 2022 (view filing)Apr 14 daysFry John JGeneral Counsel & SecretarySSale−524$29.79−$15.6K−1.7%30.2K after
Apr 5, 2022 (view filing)Apr 14 daysMattoon DawnSr. VP, DiagnosticsSSale−261$29.79−$7.78K−0.7%36.9K after
Mar 28, 2022 (view filing)Mar 235 daysLateDuffy David C.SVP R&D and CTOSSale−3.27K$30.00−$98.0K−5.6%54.7K after
Mar 3, 2022 (view filing)Mar 12 daysRoskey Mark T.SVP, Strategic PartnershipsSSale−166$31.46−$5.22K−0.7%22.5K after2 lots
Mar 3, 2022 (view filing)Mar 12 daysHrusovsky E KevinChairman and CEOSSale−589$31.46−$18.5K−0.1%887.8K after2 lots
Mar 3, 2022 (view filing)Mar 12 daysFry John JGeneral Counsel & SecretarySSale−371$31.46−$11.7K−1.2%30.8K after2 lots
Mar 3, 2022 (view filing)Mar 12 daysMattoon DawnSr. VP, DiagnosticsSSale−267$31.46−$8.40K−0.7%37.1K after2 lots
Feb 9, 2022 (view filing)Feb 9Same dayRoskey Mark T.SVP, Strategic PartnershipsSSale−292$34.97−$10.2K−1.3%22.7K after
Feb 9, 2022 (view filing)Feb 9Same dayFry John JGeneral Counsel & SecretarySSale−481$34.97−$16.8K−1.5%31.1K after
Feb 9, 2022 (view filing)Feb 9Same dayMattoon DawnSr. VP, DiagnosticsSSale−318$34.97−$11.1K−0.8%37.4K after
Feb 9, 2022 (view filing)Feb 9Same dayHrusovsky E KevinChairman and CEOSSale−1.36K$34.97−$47.7K−0.2%888.4K after
Feb 4, 2022 (view filing)Feb 4Same dayDuffy David C.SVP R&D and CTOSSale−3.27K$30.91−$101.0K−5.3%58.0K after
Feb 4, 2022 (view filing)Feb 22 daysRoskey Mark T.SVP, Strategic PartnershipsSSale−166$31.46−$5.22K−0.7%23.0K after2 lots
Feb 4, 2022 (view filing)Feb 22 daysMattoon DawnSr. VP, DiagnosticsSSale−267$31.46−$8.40K−0.7%37.7K after2 lots
Feb 4, 2022 (view filing)Feb 22 daysHrusovsky E KevinChairman and CEOSSale−589$31.46−$18.5K−0.1%889.8K after2 lots
Feb 4, 2022 (view filing)Feb 22 daysFry John JGeneral Counsel & SecretarySSale−371$31.46−$11.7K−1.2%31.6K after2 lots