Cloudflare, Inc. 4

Cloudflare CFO Thomas J. Seifert had RSU tax withholding, exercised 10,000 options, converted 10,000 Class B to Class A, and then sold 10,000 Class A shares for about $2.3 million under a Rule 10b5‑1 plan.

On this Form 4, Cloudflare CFO Thomas J. Seifert reported several equity-related transactions: on June 15, 2026, 2,944 Class A shares were withheld at approximately $228.48 per share to satisfy tax obligations upon RSU vesting. On June 17, 2026, he exercised a fully vested employee stock option for 10,000 shares at a $2.04 strike price (via an M transaction) and simultaneously converted 10,000 Class B shares into Class A (C transaction), then sold an aggregate 10,000 Class A shares in multiple tranches between roughly $227.74 and $235.34 per share under a pre-arranged Rule 10b5‑1 trading plan, generating proceeds of about $2.3 million. Following these transactions, he continued to hold approximately 116,733 Class A shares directly, plus significant indirect Class A and Class B holdings through trusts and entities (including a 92,337-share annuity trust and several Center Court trusts), which remain economically linked to Cloudflare via the one‑for‑one convertibility of Class B into Class A stock.

Filing Facts

CIK

1477333

Ticker

NET

Form

4

Source Type

sec

Accession

0001473289-26-000016

Alert Tier

6