QUODD

Insider Transactions last 24 months for Quanterix Corporation - NSDQ: QTRX

Transactions
All	Buy	Sell	Option Exercise

Filer's Name	Relationship/ Title	Trans. Date	Trans. Type	Ownership Type	Security Type	Shares	Price	Trans. Value	Total Shares Owned
Toloue Masoud	President & CEO	09/15/2025	DF	Direct	COM	1,242	$4.97	$6,172.74	513,192
Sriram Vandana	Chief Financial Officer	09/15/2025	DF	Direct	COM	229	$4.97	$1,138.13	86,971
Sriram Vandana	Chief Financial Officer	09/12/2025	AP	Direct	COM	4,150	$4.79	$19,878.50	87,200
Toloue Masoud	President & CEO	08/31/2025	DF	Direct	COM	254	$4.55	$1,155.70	514,434
Toloue Masoud	President & CEO	08/15/2025	DF	Direct	COM	1,242	$4.57	$5,675.94	514,688
Sriram Vandana	Chief Financial Officer	08/15/2025	DF	Direct	COM	229	$4.57	$1,046.53	83,050
Toloue Masoud	President & CEO	07/31/2025	DF	Direct	COM	254	$5.94	$1,508.76	515,930
Toloue Masoud	President & CEO	07/15/2025	DF	Direct	COM	1,242	$5.49	$6,818.58	516,184
Sriram Vandana	Chief Financial Officer	07/15/2025	DF	Direct	COM	229	$5.49	$1,257.21	83,279
Mendel Scott	Director	07/08/2025	AA	Direct	COM	24,464	$0.00	$0.00	28,653
Mendel Scott	Director	07/08/2025	AA	Direct	COM	4,189	$0.00	$0.00	4,189
Lai Goldman Myla	Director	07/08/2025	AA	Direct	COM	24,464	$0.00	$0.00	27,404
Lai Goldman Myla	Director	07/08/2025	AA	Direct	COM	2,940	$0.00	$0.00	2,940
Walt David R	Director	07/01/2025	AA	Direct	COM	2,148	$6.69	$14,370.12	1,869,081
Donnelly William P	Director	07/01/2025	AA	Direct	COM	4,204	$6.69	$28,124.76	143,298
Meister Paul M	Director	07/01/2025	AA	Direct	COM	2,242	$6.69	$14,998.98	309,279
Hlavinka Sarah E.	Director	07/01/2025	AA	Direct	COM	2,615	$6.69	$17,494.35	60,070
Toloue Masoud	President & CEO	06/30/2025	DF	Direct	COM	254	$6.65	$1,689.10	517,426
Sriram Vandana	Chief Financial Officer	06/15/2025	DF	Direct	COM	229	$6.06	$1,387.74	83,508
Toloue Masoud	President & CEO	06/15/2025	DF	Direct	COM	1,242	$6.06	$7,526.52	517,680
Walt David R	Director	06/13/2025	AP	Direct	COM	123,990	$6.14	$760,802.64	1,866,933
Walt David R	Director	06/12/2025	AP	Direct	COM	36,010	$6.23	$224,165.85	1,742,943
Walt David R	Director	06/09/2025	AP	Direct	COM	78,131	$5.34	$417,219.54	1,706,933
Toloue Masoud	President & CEO	06/09/2025	AP	Direct	COM	45,900	$5.42	$248,722.92	518,922
Donnelly William P	Director	06/06/2025	AP	Direct	COM	93,113	$5.44	$506,348.49	139,094

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Transaction Type Key First letter: A = Acquired, D = Disposed Second letter: A = Grant, award or other acquisition pursuant to Rule 16b-3(d) C = Conversion of derivative security \| D = Disposition to the issuer of issuer equity securities pursuant to Rule 16b-3(e) \| E = Expiration of short derivative position \| F = Payment of exercise price or tax liability by delivering or withholding securities incident to the receipt, exercise or vesting of a security issued in accordance with Rule 16b-3. \| G = Gift \| H = Expiration (or cancellation) of long derivative position with value received \| I = Discretionary transaction in accordance with Rule 16b-3(f) \| J = Other \| L = Small acquisition under Rule 16a-6 \| M = Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 \| O = Exercise of out-of-the-money derivative security \| P = Open market or private purchase \| S = Open market or private sale \| U = Disposition pursuant to a tender of shares in a change of control transaction \| W = Acquisition or disposition by will or the laws of descent and distribution \| X = Exercise of in-the-money or at-the-money derivative security \| Z = Deposit into or withdrawal from voting trust		Send to Excel

Transaction Type Key
First letter: A = Acquired, D = Disposed
Second letter:
A = Grant, award or other acquisition pursuant to Rule 16b-3(d) C = Conversion of derivative security | D = Disposition to the issuer of issuer equity securities pursuant to Rule 16b-3(e) | E = Expiration of short derivative position | F = Payment of exercise price or tax liability by delivering or withholding securities incident to the receipt, exercise or vesting of a security issued in accordance with Rule 16b-3. | G = Gift | H = Expiration (or cancellation) of long derivative position with value received | I = Discretionary transaction in accordance with Rule 16b-3(f) | J = Other | L = Small acquisition under Rule 16a-6 | M = Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | O = Exercise of out-of-the-money derivative security | P = Open market or private purchase | S = Open market or private sale | U = Disposition pursuant to a tender of shares in a change of control transaction | W = Acquisition or disposition by will or the laws of descent and distribution | X = Exercise of in-the-money or at-the-money derivative security | Z = Deposit into or withdrawal from voting trust

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