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[Form 4] Quanterix Corporation Insider Trading Activity

Filing Impact
(Low)
Filing Sentiment
(Neutral)
Form Type
4
Rhea-AI Filing Summary

Quanterix Corporation (QTRX) � Form 4 insider transaction

Director Sarah E. Hlavinka reported the acquisition of 2,615 shares of Quanterix common stock on 07/01/2025. The shares were granted in lieu of cash fees for Board and committee service for the second quarter of 2025 and were valued at the Nasdaq closing price of $6.69 on the grant date. No shares were sold.

After the award, Hlavinka’s total beneficial ownership stands at 60,070 shares, which includes 7,435 restricted stock units. All holdings are reported as directly owned. The filing, signed by Brian Keane under power of attorney on 07/03/2025, involves a single reporting person who serves solely as a director. No derivative securities or additional transactions were disclosed.

Quanterix Corporation (QTRX) � Transazione interna Form 4

La direttrice Sarah E. Hlavinka ha comunicato l'acquisizione di 2.615 azioni ordinarie di Quanterix il 01/07/2025. Le azioni sono state concesse in sostituzione delle commissioni in contanti per il servizio nel Consiglio e nelle commissioni nel secondo trimestre del 2025 e sono state valutate al prezzo di chiusura Nasdaq di 6,69 $ alla data di assegnazione. Nessuna azione è stata venduta.

Dopo l'assegnazione, la proprietà effettiva totale di Hlavinka ammonta a 60.070 azioni, comprese 7.435 unità azionarie vincolate. Tutte le partecipazioni sono riportate come detenute direttamente. La comunicazione, firmata da Brian Keane con procura il 03/07/2025, riguarda una sola persona che ricopre esclusivamente il ruolo di direttore. Non sono stati rivelati titoli derivati o ulteriori transazioni.

Quanterix Corporation (QTRX) � Transacción interna Formulario 4

La directora Sarah E. Hlavinka informó la adquisición de 2,615 acciones comunes de Quanterix el 01/07/2025. Las acciones se otorgaron en lugar de honorarios en efectivo por el servicio en la Junta y comités durante el segundo trimestre de 2025 y se valoraron al precio de cierre del Nasdaq de $6.69 en la fecha de concesión. No se vendieron acciones.

Tras la adjudicación, la propiedad beneficiaria total de Hlavinka es de 60,070 acciones, que incluyen 7,435 unidades de acciones restringidas. Todas las participaciones se reportan como propiedad directa. La presentación, firmada por Brian Keane bajo poder notarial el 03/07/2025, involucra a una única persona reportante que se desempeña únicamente como directora. No se divulgaron valores derivados ni transacciones adicionales.

Quanterix Corporation (QTRX) � Form 4 내부� 거래 보고

이사 Sarah E. Hlavinka� 2025� 7� 1� Quanterix 보통� 2,615주를 취득했다� 보고했습니다. 해당 주식은 2025� 2분기 이사� � 위원� 서비스에 대� 현금 수수� 대� 지급되었으�, 부여일 기준 Nasdaq 종가 $6.69� 평가되었습니�. 주식은 매도되지 않았습니�.

수여 � Hlavinka� � 실질 소유 주식은 60,070��, � � 7,435� 제한 주식 단위가 포함되어 있습니다. 모든 보유 주식은 직접 소유� 보고되었습니�. 2025� 7� 3� Brian Keane� 위임장을 통해 서명� � 보고� 단일 보고자로� 이사직만� 수행하는 인물� 관련되�, 파생 증권이나 추가 거래� 공개되지 않았습니�.

Quanterix Corporation (QTRX) � Transaction d'initié Formulaire 4

La directrice Sarah E. Hlavinka a déclaré l'acquisition de 2 615 actions ordinaires de Quanterix le 01/07/2025. Les actions ont été attribuées en lieu et place des honoraires en espèces pour le service au conseil d'administration et aux comités au deuxième trimestre 2025, et ont été valorisées au cours de clôture Nasdaq de 6,69 $ à la date d'attribution. Aucune action n'a été vendue.

Après cette attribution, la détention effective totale de Hlavinka s'élève à 60 070 actions, incluant 7 435 unités d'actions restreintes. Tous les avoirs sont déclarés comme détenus directement. Le dépôt, signé par Brian Keane sous procuration le 03/07/2025, concerne une seule personne déclarante exerçant uniquement en tant que directrice. Aucune valeur dérivée ni transaction supplémentaire n'a été divulguée.

Quanterix Corporation (QTRX) � Form 4 Insider-Transaktion

Direktorin Sarah E. Hlavinka meldete den Erwerb von 2.615 Quanterix-Stammaktien am 01.07.2025. Die Aktien wurden anstelle von Barvergütungen für die Vorstandstätigkeit und Ausschussarbeit im zweiten Quartal 2025 gewährt und zum Nasdaq-Schlusskurs von 6,69 $ am Gewährungstag bewertet. Es wurden keine Aktien verkauft.

Nach der Zuteilung beläuft sich Hlavinkas gesamtes wirtschaftliches Eigentum auf 60.070 Aktien, einschließlich 7.435 Restricted Stock Units. Alle Bestände werden als direkt gehalten gemeldet. Die Einreichung, unterzeichnet von Brian Keane per Vollmacht am 03.07.2025, betrifft eine einzelne meldende Person, die ausschließlich als Direktor tätig ist. Es wurden keine Derivate oder weitere Transaktionen offengelegt.

Positive
  • None.
Negative
  • None.

Insights

TL;DR: Routine board stock grant (~$17k); immaterial to QTRX valuation; neutral signal for investors.

The filing reflects a standard quarterly equity retainer issued to Director Sarah E. Hlavinka. At 2,615 shares priced at $6.69, the grant value is roughly $17,500—immaterial relative to Quanterix’s market capitalization. No disposals occurred, and post-grant ownership of 60,070 shares (including 7,435 RSUs) does not represent a concentration change large enough to influence float or insider ownership percentages. Consequently, the transaction is best viewed as routine compensation rather than an indicator of insider sentiment. Impact on share price or liquidity is expected to be negligible.

TL;DR: Equity-in-lieu cash retainer aligns director with shareholders; governance-positive but financially minor.

Issuing equity instead of cash reinforces alignment between directors and shareholders, consistent with widely accepted governance practices. The award size (2,615 shares) is modest and mirrors prior quarter grants, suggesting policy continuity rather than a strategic shift. No 10b5-1 plan is referenced, and the filing ticks the Rule 16 boxes correctly. From a governance lens the move is favorable, but given its scale it does not materially alter insider ownership dynamics or voting power.

Quanterix Corporation (QTRX) � Transazione interna Form 4

La direttrice Sarah E. Hlavinka ha comunicato l'acquisizione di 2.615 azioni ordinarie di Quanterix il 01/07/2025. Le azioni sono state concesse in sostituzione delle commissioni in contanti per il servizio nel Consiglio e nelle commissioni nel secondo trimestre del 2025 e sono state valutate al prezzo di chiusura Nasdaq di 6,69 $ alla data di assegnazione. Nessuna azione è stata venduta.

Dopo l'assegnazione, la proprietà effettiva totale di Hlavinka ammonta a 60.070 azioni, comprese 7.435 unità azionarie vincolate. Tutte le partecipazioni sono riportate come detenute direttamente. La comunicazione, firmata da Brian Keane con procura il 03/07/2025, riguarda una sola persona che ricopre esclusivamente il ruolo di direttore. Non sono stati rivelati titoli derivati o ulteriori transazioni.

Quanterix Corporation (QTRX) � Transacción interna Formulario 4

La directora Sarah E. Hlavinka informó la adquisición de 2,615 acciones comunes de Quanterix el 01/07/2025. Las acciones se otorgaron en lugar de honorarios en efectivo por el servicio en la Junta y comités durante el segundo trimestre de 2025 y se valoraron al precio de cierre del Nasdaq de $6.69 en la fecha de concesión. No se vendieron acciones.

Tras la adjudicación, la propiedad beneficiaria total de Hlavinka es de 60,070 acciones, que incluyen 7,435 unidades de acciones restringidas. Todas las participaciones se reportan como propiedad directa. La presentación, firmada por Brian Keane bajo poder notarial el 03/07/2025, involucra a una única persona reportante que se desempeña únicamente como directora. No se divulgaron valores derivados ni transacciones adicionales.

Quanterix Corporation (QTRX) � Form 4 내부� 거래 보고

이사 Sarah E. Hlavinka� 2025� 7� 1� Quanterix 보통� 2,615주를 취득했다� 보고했습니다. 해당 주식은 2025� 2분기 이사� � 위원� 서비스에 대� 현금 수수� 대� 지급되었으�, 부여일 기준 Nasdaq 종가 $6.69� 평가되었습니�. 주식은 매도되지 않았습니�.

수여 � Hlavinka� � 실질 소유 주식은 60,070��, � � 7,435� 제한 주식 단위가 포함되어 있습니다. 모든 보유 주식은 직접 소유� 보고되었습니�. 2025� 7� 3� Brian Keane� 위임장을 통해 서명� � 보고� 단일 보고자로� 이사직만� 수행하는 인물� 관련되�, 파생 증권이나 추가 거래� 공개되지 않았습니�.

Quanterix Corporation (QTRX) � Transaction d'initié Formulaire 4

La directrice Sarah E. Hlavinka a déclaré l'acquisition de 2 615 actions ordinaires de Quanterix le 01/07/2025. Les actions ont été attribuées en lieu et place des honoraires en espèces pour le service au conseil d'administration et aux comités au deuxième trimestre 2025, et ont été valorisées au cours de clôture Nasdaq de 6,69 $ à la date d'attribution. Aucune action n'a été vendue.

Après cette attribution, la détention effective totale de Hlavinka s'élève à 60 070 actions, incluant 7 435 unités d'actions restreintes. Tous les avoirs sont déclarés comme détenus directement. Le dépôt, signé par Brian Keane sous procuration le 03/07/2025, concerne une seule personne déclarante exerçant uniquement en tant que directrice. Aucune valeur dérivée ni transaction supplémentaire n'a été divulguée.

Quanterix Corporation (QTRX) � Form 4 Insider-Transaktion

Direktorin Sarah E. Hlavinka meldete den Erwerb von 2.615 Quanterix-Stammaktien am 01.07.2025. Die Aktien wurden anstelle von Barvergütungen für die Vorstandstätigkeit und Ausschussarbeit im zweiten Quartal 2025 gewährt und zum Nasdaq-Schlusskurs von 6,69 $ am Gewährungstag bewertet. Es wurden keine Aktien verkauft.

Nach der Zuteilung beläuft sich Hlavinkas gesamtes wirtschaftliches Eigentum auf 60.070 Aktien, einschließlich 7.435 Restricted Stock Units. Alle Bestände werden als direkt gehalten gemeldet. Die Einreichung, unterzeichnet von Brian Keane per Vollmacht am 03.07.2025, betrifft eine einzelne meldende Person, die ausschließlich als Direktor tätig ist. Es wurden keine Derivate oder weitere Transaktionen offengelegt.

SEC Form 4
FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number: 3235-0287
Estimated average burden
hours per response: 0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
Hlavinka Sarah E.

(Last) (First) (Middle)
C/O QUANTERIX CORPORATION
900 MIDDLESEX TURNPIKE

(Street)
BILLERICA MA 01821

(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
Quanterix Corp [ QTRX ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
X Director 10% Owner
Officer (give title below) Other (specify below)
3. Date of Earliest Transaction (Month/Day/Year)
07/01/2025
4. If Amendment, Date of Original Filed (Month/Day/Year)
6. Individual or Joint/Group Filing (Check Applicable Line)
X Form filed by One Reporting Person
Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 07/01/2025 A 2,615(1) A $6.69(2) 60,070(3) D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year) 7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Explanation of Responses:
1. Consists of stock granted in lieu of cash fees for service on the Company's Board of Directors and committees thereof for the second quarter of 2025.
2. Closing price of the Company's common stock on the Nasdaq Global Market on July 1, 2025.
3. Includes 7,435 restricted stock units.
Remarks:
/s/ Brian Keane, as Attorney-in-Fact 07/03/2025
** Signature of Reporting Person Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

How many QTRX shares did Director Sarah E. Hlavinka acquire on July 1 2025?

She acquired 2,615 shares of Quanterix common stock.

What was the price per share for the QTRX stock grant?

The shares were valued at the Nasdaq closing price of $6.69 on 07/01/2025.

What is Sarah E. Hlavinka’s total ownership in Quanterix after the transaction?

Her beneficial ownership totals 60,070 shares, including 7,435 restricted stock units.

Did the Form 4 report any sale of QTRX shares?

No. The filing only reports an acquisition; no disposals were disclosed.

Why were the shares granted to the director?

They were issued in lieu of cash fees for Board and committee service during Q2 2025.

When was the Form 4 signed and filed?

It was signed by Brian Keane as Attorney-in-Fact on 07/03/2025.
Quanterix

NASDAQ:QTRX

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258.38M
35.87M
14.82%
95.77%
6.05%
Medical Devices
Laboratory Analytical Instruments
United States
BILLERICA