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$ Value

Shares

165,625

Price

Filed

Sep 19

Insider

Name

DEL MATTO ANDREW H

Title

Chief Financial Officer

CIK

0001288241

Roles

Officer

Transaction Details

Transaction Date

2025-09-17

Code

M

Table

Non-Derivative

Ownership

Direct

Equity Swap

No

Shares After

165,625

Footnotes

Immediately prior to the completion of the Issuer's initial public offering of Class A Common Stock (the "IPO"), each share of Common Stock shall be reclassified into one share of Class B Common Stock. | Each restricted stock unit, or RSU, represents a contingent right to receive one share of Issuer Common Stock. | The shares were withheld to satisfy the reporting person's tax liability in connection with the vesting of RSUs. | Prior to the Issuer's initial public offering of Class A Common Stock (the "IPO"), 30% of the restricted stock units, or RSUs, vested with the remaining 30% vesting on April 1, 2026 and 40% vesting on April 1, 2027. Vested shares became issuable upon the effectiveness of the IPO. | The RSUs vest in 16 equal quarterly installments beginning on July 1, 2025. Vested shares became issuable upon the effectiveness of the IPO.

Filing Info

Accession No.

0001104659-25-091761

Form Type

4

Issuer CIK

0002063196

DEL MATTO ANDREW H's History

Date Ticker Type Value
2026-04-01 NTSK M $0
2026-04-01 NTSK M $0
2026-04-01 NTSK M $0
2026-04-01 NTSK F $706K
2026-01-06 NTSK C
2026-01-06 NTSK $856K
2026-01-06 NTSK C $0
2026-01-05 NTSK C
2026-01-05 NTSK $670K
2026-01-05 NTSK C $0

Other Insiders at NTSK (90d)

Insider Bought Sold Last
DEL MATTO ANDREW H
Chief Financial Officer
2026-04-01
Salem Enrique T 2025-12-09
Griffith William J.G. 2026-03-13
ICONIQ Strategic Partners VI, L.P. 2026-03-13
Beri Sanjay
CEO and Chairman
2026-04-01
Bousquet Raphael
Chief Revenue Officer
2026-04-01