MILLER MICHAEL FRANCIS enters QUANTERIX CORP with 30.26K shares plus derivative instruments

Holding both equity and derivatives at entry signals strong long-term conviction in the company.

Direct Derivatives

MILLER MICHAEL FRANCIS

Filed: 3/17/2026ACC: 0002120516-26-000003

InsiderMILLER MICHAEL FRANCISCIK 2120516

→

IssuerQUANTERIX CORPCIK 1503274

Officer· Chief Operating Officer

Since Feb 2026

30.26K

Baseline shares

100% direct

30.26K

Direct ownership

1 position

471.48K

Derivative underlying

17 instruments

Security positions

All direct

Non-Derivative Holdings1

Common Stock

Direct

Shares owned30.26K

Total

30.26K direct30.26K

Security Title	Shares Owned	Ownership Type
Common Stock	30.26K	Direct
Total	30.26K	30.26K direct

Derivative Holdings17

Restricted Stock Unit

Direct

Underlying security

Common Stock

Underlying shares

74.91K

Shares owned

N/A

Exercise price

0.00

Expiration

—

Exercise window

—

Stock Options (Right to buy)

Direct

Underlying security

Common Stock

Underlying shares

14.65K

Shares owned

N/A

Exercise price

9.67

Expiration

—

Exercise window

—

Stock Options (Right to buy)

Direct

Underlying security

Common Stock

Underlying shares

131.15K

Shares owned

N/A

Exercise price

8.43

Expiration

—

Exercise window

—

Restricted Stock Unit

Direct

Underlying security

Common Stock

Underlying shares

10.06K

Shares owned

N/A

Exercise price

0.00

Expiration

—

Exercise window

—

Stock Options (Right to buy)

Direct

Underlying security

Common Stock

Underlying shares

60.12K

Shares owned

N/A

Exercise price

16.78

Expiration

—

Exercise window

—

Stock Options (Right to buy)

Direct

Underlying security

Common Stock

Underlying shares

9.17K

Shares owned

N/A

Exercise price

14.89

Expiration

—

Exercise window

—

Performance Stock Unit

Direct

Underlying security

Common Stock

Underlying shares

74.91K

Shares owned

N/A

Exercise price

0.00

Expiration

—

Exercise window

—

Restricted Stock Unit

Direct

Underlying security

Common Stock

Underlying shares

30.03K

Shares owned

N/A

Exercise price

0.00

Expiration

—

Exercise window

—

Stock Options (Right to buy)

Direct

Underlying security

Common Stock

Underlying shares

11.82K

Shares owned

N/A

Exercise price

54.04

Expiration

—

Exercise window

—

Stock Options (Right to buy)

Direct

Underlying security

Common Stock

Underlying shares

15.32K

Shares owned

N/A

Exercise price

11.89

Expiration

—

Exercise window

—

Restricted Stock Unit

Direct

Underlying security

Common Stock

Underlying shares

Shares owned

N/A

Exercise price

0.00

Expiration

—

Exercise window

—

Restricted Stock Unit

Direct

Underlying security

Common Stock

Underlying shares

99.00

Shares owned

N/A

Exercise price

0.00

Expiration

—

Exercise window

—

Restricted Stock Unit

Direct

Underlying security

Common Stock

Underlying shares

1.80K

Shares owned

N/A

Exercise price

0.00

Expiration

—

Exercise window

—

Restricted Stock Unit

Direct

Underlying security

Common Stock

Underlying shares

3.25K

Shares owned

N/A

Exercise price

0.00

Expiration

—

Exercise window

—

Restricted Stock Unit

Direct

Underlying security

Common Stock

Underlying shares

809.00

Shares owned

N/A

Exercise price

0.00

Expiration

—

Exercise window

—

Stock Options (Right to buy)

Direct

Underlying security

Common Stock

Underlying shares

10.54K

Shares owned

N/A

Exercise price

29.62

Expiration

—

Exercise window

—

Stock Options (Right to buy)

Direct

Underlying security

Common Stock

Underlying shares

21.85K

Shares owned

N/A

Exercise price

23.10

Expiration

—

Exercise window

—

Total

Underlying

471.48K

Owned

0.00

Security	Underlying	Exercise Price	Exercise Window	Expiration	Underlying Shares	Shares Owned
Restricted Stock Unit Direct	Common Stock	0.00	—	—	74.91K	N/A
Stock Options (Right to buy) Direct	Common Stock	9.67	—	—	14.65K	N/A
Stock Options (Right to buy) Direct	Common Stock	8.43	—	—	131.15K	N/A
Restricted Stock Unit Direct	Common Stock	0.00	—	—	10.06K	N/A
Stock Options (Right to buy) Direct	Common Stock	16.78	—	—	60.12K	N/A
Stock Options (Right to buy) Direct	Common Stock	14.89	—	—	9.17K	N/A
Performance Stock Unit Direct	Common Stock	0.00	—	—	74.91K	N/A
Restricted Stock Unit Direct	Common Stock	0.00	—	—	30.03K	N/A
Stock Options (Right to buy) Direct	Common Stock	54.04	—	—	11.82K	N/A
Stock Options (Right to buy) Direct	Common Stock	11.89	—	—	15.32K	N/A
Restricted Stock Unit Direct	Common Stock	0.00	—	—	1K	N/A
Restricted Stock Unit Direct	Common Stock	0.00	—	—	99.00	N/A
Restricted Stock Unit Direct	Common Stock	0.00	—	—	1.80K	N/A
Restricted Stock Unit Direct	Common Stock	0.00	—	—	3.25K	N/A
Restricted Stock Unit Direct	Common Stock	0.00	—	—	809.00	N/A
Stock Options (Right to buy) Direct	Common Stock	29.62	—	—	10.54K	N/A
Stock Options (Right to buy) Direct	Common Stock	23.10	—	—	21.85K	N/A
Total					471.48K	0.00