STOCK TITAN

[Form 4] Quanterix Corporation Insider Trading Activity

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

Zscaler, Inc. (ZS) has filed a Form 144 indicating a proposed insider sale of common stock. The filing covers the potential sale of 56,428 shares with an aggregate market value of approximately $17.45 million. The shares are expected to be sold on or about 07/02/2025 through Morgan Stanley Smith Barney LLC on the NASDAQ exchange. As disclosed, Zscaler has 155,695,672 shares outstanding; therefore, the planned sale represents roughly 0.036 % of total shares.

The seller, Remo E. Canessa, previously sold 3,684 shares on 06/17/2025 for gross proceeds of $1.12 million. The current Form 144 aggregates shares acquired via restricted stock awards, performance shares, and an employee stock-purchase plan between 2018-2022. No gifts were involved and prior purchases were made either without cash consideration (share grants) or with cash (ESPP shares).

Form 144 is a notice of intent; it does not guarantee that the sale will occur, but it signals insider intent and allows the market to anticipate potential share supply. The filer attests that no material non-public adverse information is known and acknowledges Rule 144 and 10b5-1 representations.

Zscaler, Inc. (ZS) ha presentato un Modulo 144 che indica una proposta di vendita interna di azioni ordinarie. La comunicazione riguarda la possibile vendita di 56.428 azioni con un valore di mercato complessivo di circa 17,45 milioni di dollari. Le azioni dovrebbero essere vendute intorno al 02/07/2025 tramite Morgan Stanley Smith Barney LLC sul mercato NASDAQ. Come riportato, Zscaler ha 155.695.672 azioni in circolazione; pertanto, la vendita prevista rappresenta circa lo 0,036% del totale delle azioni.

Il venditore, Remo E. Canessa, ha precedentemente venduto 3.684 azioni il 17/06/2025 per un ricavo lordo di 1,12 milioni di dollari. Il Modulo 144 attuale aggrega azioni acquisite tramite assegnazioni di azioni vincolate, azioni di performance e un piano di acquisto azionario per dipendenti tra il 2018 e il 2022. Non sono stati coinvolti regali e gli acquisti precedenti sono stati effettuati senza pagamento in contanti (assegnazioni) o con pagamento in contanti (azioni ESPP).

Il Modulo 144 è un avviso di intenzione; non garantisce che la vendita avverrà, ma segnala l’intenzione interna e permette al mercato di anticipare un potenziale aumento dell’offerta di azioni. Il presentatore dichiara di non essere a conoscenza di informazioni riservate negative rilevanti e riconosce le rappresentazioni previste dalle regole 144 e 10b5-1.

Zscaler, Inc. (ZS) ha presentado un Formulario 144 que indica una propuesta de venta interna de acciones comunes. La presentación cubre la posible venta de 56,428 acciones con un valor de mercado total aproximado de 17,45 millones de dólares. Se espera que las acciones se vendan alrededor del 02/07/2025 a través de Morgan Stanley Smith Barney LLC en la bolsa NASDAQ. Según lo divulgado, Zscaler tiene 155,695,672 acciones en circulación; por lo tanto, la venta planificada representa aproximadamente el 0,036% del total de acciones.

El vendedor, Remo E. Canessa, vendió previamente 3,684 acciones el 17/06/2025 por ingresos brutos de 1,12 millones de dólares. El Formulario 144 actual agrega acciones adquiridas mediante premios de acciones restringidas, acciones por desempeño y un plan de compra de acciones para empleados entre 2018 y 2022. No hubo regalos involucrados y las compras anteriores se realizaron sin consideración en efectivo (concesiones de acciones) o con efectivo (acciones ESPP).

El Formulario 144 es un aviso de intención; no garantiza que la venta ocurra, pero señala la intención interna y permite al mercado anticipar una posible oferta de acciones. El declarante afirma que no conoce información negativa material no pública y reconoce las declaraciones bajo las reglas 144 y 10b5-1.

Zscaler, Inc. (ZS)가 내부자 보통주 매각 예정임을 알리는 Form 144를 제출했습니다. 제출된 내용은 56,428주의 잠재적 매각을 포함하며, 총 시장가치는 약 1,745만 달러에 달합니다. 해당 주식은 2025년 7월 2일경 Morgan Stanley Smith Barney LLC를 통해 NASDAQ 거래소에서 매각될 예정입니다. 공개된 바에 따르면, Zscaler는 155,695,672주가 발행되어 있습니다; 따라서 이번 매각은 전체 주식의 약 0.036%에 해당합니다.

매도자인 Remo E. Canessa는 이전에 2025년 6월 17일3,684주를 매도하여 총 112만 달러의 매출을 올렸습니다. 이번 Form 144는 2018년부터 2022년 사이에 제한 주식 수여, 성과 주식, 직원 주식 구매 계획을 통해 취득한 주식을 합산한 것입니다. 선물 증여는 없었으며, 이전 매입은 현금 없이(주식 부여) 또는 현금으로(ESPP 주식) 이루어졌습니다.

Form 144는 판매 의도 통지서로서, 실제 매각을 보장하지는 않지만 내부자의 의도를 나타내고 시장이 잠재적 주식 공급을 예상할 수 있도록 합니다. 제출자는 중요한 비공개 부정적 정보가 없음을 확인하며, Rule 144 및 10b5-1 규정을 준수함을 인정합니다.

Zscaler, Inc. (ZS) a déposé un formulaire 144 indiquant une vente d’actions ordinaires proposée par un initié. Le dépôt couvre la vente potentielle de 56 428 actions pour une valeur marchande totale d’environ 17,45 millions de dollars. Les actions devraient être vendues aux alentours du 02/07/2025 via Morgan Stanley Smith Barney LLC sur le marché NASDAQ. Comme indiqué, Zscaler compte 155 695 672 actions en circulation ; la vente prévue représente donc environ 0,036 % du total des actions.

Le vendeur, Remo E. Canessa, a précédemment vendu 3 684 actions le 17/06/2025 pour un produit brut de 1,12 million de dollars. Le formulaire 144 actuel regroupe des actions acquises via des attributions d’actions restreintes, des actions de performance et un plan d’achat d’actions pour employés entre 2018 et 2022. Aucun don n’a été impliqué et les achats antérieurs ont été effectués soit sans contrepartie en espèces (attributions d’actions), soit avec paiement en espèces (actions ESPP).

Le formulaire 144 est un avis d’intention ; il ne garantit pas que la vente aura lieu, mais signale l’intention de l’initié et permet au marché d’anticiper une offre potentielle d’actions. Le déclarant atteste qu’il ne connaît aucune information négative non publique importante et reconnaît les déclarations conformément aux règles 144 et 10b5-1.

Zscaler, Inc. (ZS) hat ein Formular 144 eingereicht, das einen geplanten Insider-Verkauf von Stammaktien anzeigt. Die Einreichung betrifft den potenziellen Verkauf von 56.428 Aktien mit einem gesamten Marktwert von etwa 17,45 Millionen US-Dollar. Die Aktien sollen voraussichtlich am oder um den 02.07.2025 über Morgan Stanley Smith Barney LLC an der NASDAQ-Börse verkauft werden. Wie bekannt gegeben, hat Zscaler 155.695.672 ausstehende Aktien; daher entspricht der geplante Verkauf etwa 0,036 % der Gesamtaktien.

Der Verkäufer, Remo E. Canessa, hat zuvor am 17.06.2025 3.684 Aktien verkauft und dabei Bruttoerlöse von 1,12 Millionen US-Dollar erzielt. Das aktuelle Formular 144 fasst Aktien zusammen, die zwischen 2018 und 2022 durch Restricted Stock Awards, Performance Shares und einen Mitarbeiter-Aktienkaufplan erworben wurden. Es gab keine Schenkungen, und frühere Käufe erfolgten entweder ohne Barzahlung (Aktienzuteilungen) oder gegen Barzahlung (ESPP-Aktien).

Formular 144 ist eine Absichtserklärung; es garantiert nicht, dass der Verkauf stattfindet, signalisiert jedoch die Absicht von Insidern und ermöglicht es dem Markt, ein potenzielles Angebot an Aktien vorherzusehen. Der Einreicher bestätigt, dass keine wesentlichen nicht öffentlichen negativen Informationen vorliegen und erkennt die Regelungen nach Rule 144 und 10b5-1 an.

Positive
  • Sale represents only 0.036 % of shares outstanding, indicating limited dilution or market impact.
Negative
  • $17.45 million insider sale could be interpreted by some investors as a bearish signal despite its small proportion of total shares.
  • The filing does not specify a 10b5-1 plan adoption date, reducing clarity on whether the sale is pre-planned.

Insights

TL;DR: $17.5 M insider sale is modest vs. float; signals liquidity event, not necessarily bearish.

The proposed disposition equals only 0.036 % of ZS’s shares outstanding, so mechanical supply impact should be minimal. However, any insider sale over $10 million attracts attention during valuation-sensitive periods. Because the shares stem from vested grants and an ESPP plan, the transaction appears to be routine monetisation of compensation. The single prior sale of 3,684 shares in the last three months is also relatively small. No 10b5-1 adoption date is provided, so investors cannot confirm whether it is a pre-scheduled trade, but the Rule 144 notice and standard disclaimer reduce concerns about trading on undisclosed information. Overall market effect: limited.

TL;DR: Filing is neutral; standard procedural disclosure with limited governance red flags.

Form 144 compliance indicates appropriate transparency. The filer certifies no possession of adverse material information, consistent with governance best practices. Sale size relative to holdings and company float is immaterial, suggesting diversification rather than insider pessimism. Absence of leverage or unusual consideration mitigates risk of forced sales. Missing details on Rule 10b5-1 plan date slightly reduces visibility, yet does not imply misconduct. I view the disclosure as neutral from a governance standpoint.

Zscaler, Inc. (ZS) ha presentato un Modulo 144 che indica una proposta di vendita interna di azioni ordinarie. La comunicazione riguarda la possibile vendita di 56.428 azioni con un valore di mercato complessivo di circa 17,45 milioni di dollari. Le azioni dovrebbero essere vendute intorno al 02/07/2025 tramite Morgan Stanley Smith Barney LLC sul mercato NASDAQ. Come riportato, Zscaler ha 155.695.672 azioni in circolazione; pertanto, la vendita prevista rappresenta circa lo 0,036% del totale delle azioni.

Il venditore, Remo E. Canessa, ha precedentemente venduto 3.684 azioni il 17/06/2025 per un ricavo lordo di 1,12 milioni di dollari. Il Modulo 144 attuale aggrega azioni acquisite tramite assegnazioni di azioni vincolate, azioni di performance e un piano di acquisto azionario per dipendenti tra il 2018 e il 2022. Non sono stati coinvolti regali e gli acquisti precedenti sono stati effettuati senza pagamento in contanti (assegnazioni) o con pagamento in contanti (azioni ESPP).

Il Modulo 144 è un avviso di intenzione; non garantisce che la vendita avverrà, ma segnala l’intenzione interna e permette al mercato di anticipare un potenziale aumento dell’offerta di azioni. Il presentatore dichiara di non essere a conoscenza di informazioni riservate negative rilevanti e riconosce le rappresentazioni previste dalle regole 144 e 10b5-1.

Zscaler, Inc. (ZS) ha presentado un Formulario 144 que indica una propuesta de venta interna de acciones comunes. La presentación cubre la posible venta de 56,428 acciones con un valor de mercado total aproximado de 17,45 millones de dólares. Se espera que las acciones se vendan alrededor del 02/07/2025 a través de Morgan Stanley Smith Barney LLC en la bolsa NASDAQ. Según lo divulgado, Zscaler tiene 155,695,672 acciones en circulación; por lo tanto, la venta planificada representa aproximadamente el 0,036% del total de acciones.

El vendedor, Remo E. Canessa, vendió previamente 3,684 acciones el 17/06/2025 por ingresos brutos de 1,12 millones de dólares. El Formulario 144 actual agrega acciones adquiridas mediante premios de acciones restringidas, acciones por desempeño y un plan de compra de acciones para empleados entre 2018 y 2022. No hubo regalos involucrados y las compras anteriores se realizaron sin consideración en efectivo (concesiones de acciones) o con efectivo (acciones ESPP).

El Formulario 144 es un aviso de intención; no garantiza que la venta ocurra, pero señala la intención interna y permite al mercado anticipar una posible oferta de acciones. El declarante afirma que no conoce información negativa material no pública y reconoce las declaraciones bajo las reglas 144 y 10b5-1.

Zscaler, Inc. (ZS)가 내부자 보통주 매각 예정임을 알리는 Form 144를 제출했습니다. 제출된 내용은 56,428주의 잠재적 매각을 포함하며, 총 시장가치는 약 1,745만 달러에 달합니다. 해당 주식은 2025년 7월 2일경 Morgan Stanley Smith Barney LLC를 통해 NASDAQ 거래소에서 매각될 예정입니다. 공개된 바에 따르면, Zscaler는 155,695,672주가 발행되어 있습니다; 따라서 이번 매각은 전체 주식의 약 0.036%에 해당합니다.

매도자인 Remo E. Canessa는 이전에 2025년 6월 17일3,684주를 매도하여 총 112만 달러의 매출을 올렸습니다. 이번 Form 144는 2018년부터 2022년 사이에 제한 주식 수여, 성과 주식, 직원 주식 구매 계획을 통해 취득한 주식을 합산한 것입니다. 선물 증여는 없었으며, 이전 매입은 현금 없이(주식 부여) 또는 현금으로(ESPP 주식) 이루어졌습니다.

Form 144는 판매 의도 통지서로서, 실제 매각을 보장하지는 않지만 내부자의 의도를 나타내고 시장이 잠재적 주식 공급을 예상할 수 있도록 합니다. 제출자는 중요한 비공개 부정적 정보가 없음을 확인하며, Rule 144 및 10b5-1 규정을 준수함을 인정합니다.

Zscaler, Inc. (ZS) a déposé un formulaire 144 indiquant une vente d’actions ordinaires proposée par un initié. Le dépôt couvre la vente potentielle de 56 428 actions pour une valeur marchande totale d’environ 17,45 millions de dollars. Les actions devraient être vendues aux alentours du 02/07/2025 via Morgan Stanley Smith Barney LLC sur le marché NASDAQ. Comme indiqué, Zscaler compte 155 695 672 actions en circulation ; la vente prévue représente donc environ 0,036 % du total des actions.

Le vendeur, Remo E. Canessa, a précédemment vendu 3 684 actions le 17/06/2025 pour un produit brut de 1,12 million de dollars. Le formulaire 144 actuel regroupe des actions acquises via des attributions d’actions restreintes, des actions de performance et un plan d’achat d’actions pour employés entre 2018 et 2022. Aucun don n’a été impliqué et les achats antérieurs ont été effectués soit sans contrepartie en espèces (attributions d’actions), soit avec paiement en espèces (actions ESPP).

Le formulaire 144 est un avis d’intention ; il ne garantit pas que la vente aura lieu, mais signale l’intention de l’initié et permet au marché d’anticiper une offre potentielle d’actions. Le déclarant atteste qu’il ne connaît aucune information négative non publique importante et reconnaît les déclarations conformément aux règles 144 et 10b5-1.

Zscaler, Inc. (ZS) hat ein Formular 144 eingereicht, das einen geplanten Insider-Verkauf von Stammaktien anzeigt. Die Einreichung betrifft den potenziellen Verkauf von 56.428 Aktien mit einem gesamten Marktwert von etwa 17,45 Millionen US-Dollar. Die Aktien sollen voraussichtlich am oder um den 02.07.2025 über Morgan Stanley Smith Barney LLC an der NASDAQ-Börse verkauft werden. Wie bekannt gegeben, hat Zscaler 155.695.672 ausstehende Aktien; daher entspricht der geplante Verkauf etwa 0,036 % der Gesamtaktien.

Der Verkäufer, Remo E. Canessa, hat zuvor am 17.06.2025 3.684 Aktien verkauft und dabei Bruttoerlöse von 1,12 Millionen US-Dollar erzielt. Das aktuelle Formular 144 fasst Aktien zusammen, die zwischen 2018 und 2022 durch Restricted Stock Awards, Performance Shares und einen Mitarbeiter-Aktienkaufplan erworben wurden. Es gab keine Schenkungen, und frühere Käufe erfolgten entweder ohne Barzahlung (Aktienzuteilungen) oder gegen Barzahlung (ESPP-Aktien).

Formular 144 ist eine Absichtserklärung; es garantiert nicht, dass der Verkauf stattfindet, signalisiert jedoch die Absicht von Insidern und ermöglicht es dem Markt, ein potenzielles Angebot an Aktien vorherzusehen. Der Einreicher bestätigt, dass keine wesentlichen nicht öffentlichen negativen Informationen vorliegen und erkennt die Regelungen nach Rule 144 und 10b5-1 an.

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*
Toloue Masoud

(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
X Officer (give title below) Other (specify below)
President & CEO
3. Date of Earliest Transaction (Month/Day/Year)
06/30/2025
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 06/30/2025 F 254(1) D $6.65 517,426(2) 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. Shares withheld by Quanterix Corporation solely to cover tax obligations upon the vesting of 761 RSUs.
2. Includes 237,018 restricted stock units.
Remarks:
/s/ Brian Keane, as Attorney-in-Fact 07/02/2025
** 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 ZS shares are proposed to be sold under this Form 144?

The filing covers 56,428 common shares of Zscaler, Inc.

What is the estimated market value of the planned insider sale for ZS?

The aggregate market value is approximately $17.45 million.

When is the anticipated sale date for the ZS shares?

The approximate sale date listed is 07/02/2025.

Who is selling the shares disclosed in the ZS Form 144 filing?

The seller named is Remo E. Canessa.

How many shares has the filer sold in the last three months?

He sold 3,684 shares on 06/17/2025 for $1.12 million in gross proceeds.

Does the filing indicate use of a Rule 10b5-1 trading plan?

The form references 10b5-1 compliance, but no adoption date for a trading plan is provided.
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