Cloudflare's Matthew Prince: $1.05B Sold, 7.7% Stake Filed

Cloudflare CEO Matthew Prince has booked $1.05 billion in cumulative Cloudflare stock sales across the Form 4 record — a number that is easy to read as a discretionary exit signal until you check the Schedule 13D/G record on the same person. Two months before his most recent Form 4 transactions on April 7-8, 2026, Prince filed a personal SCHEDULE 13G/A confirming a 7.7% beneficial ownership stake in Cloudflare — 26,338,507 shares. The headline and the cross-check tell different stories.

The April 2026 Form 4 sequence — conversion-and-sell pairs on April 7 and April 8 at prices between $214 and $223 — moved 52,384 Class B shares through a conversion to Class A on each of two trading days, with the resulting Class A shares promptly sold. This is the classic dual-class founder mechanic: derivative or restricted holdings converted to common stock and immediately exited on the open market, while the majority economic stake remains in the structurally-restricted instrument. After the April 8 transactions, Prince still holds 4,584,921 shares under Form 4 Table II.

The Ownership Stack on NET

The schedule 13G filings on Cloudflare paint the complete beneficial-ownership picture, in order of stake size:

Two things on this table matter more than the cumulative-sales headline. First, Prince's 7.7% personal stake makes him the second-largest beneficial owner of the company he founded — and that stake is filed on Schedule 13G, not 13D, signaling "passive" reporting intent under SEC rules. Second, Capital World Investors has built an 11.5% block — the largest active-manager position by a wide margin, exceeding even the founder's stake. The active money is not waiting on Prince to exit; it is sized for a long-duration cloud-infrastructure thesis.

Why the April Conversions Aren't a Bear Signal

The conversion-and-sell mechanic from April 7-8 follows a pattern that recurs across the Form 4 archive: a planned slice of Class B (or option) holdings converts to Class A on a scheduled date, and the Class A shares clear through a 10b5-1 sale plan inside hours. The Form 4 footnotes on Prince's filings have historically referenced a Rule 10b5-1 trading plan; subsequent filings continue the same posture. None of this involves discretionary judgment about Cloudflare's near-term price action — it is mechanical liquidity tied to vesting and conversion schedules.

The discretionary signal would be a 13D filing (which carries an "intent to influence control" requirement), an exit-flagged 13G/A by Prince at 0%, or a sharp acceleration in 10b5-1 plan adoption pace. None of those are in the current 90-day window. What is in the window is a $1.05B cumulative number that reflects four years of programmatic founder liquidity, not a re-rating of Cloudflare's growth trajectory.

What Active Money Reads

Baillie Gifford's stake history is the second tell to watch. The Edinburgh-based growth manager filed at 10.0% in April 2025, then trimmed to 7.0% in November 2025, then to 5.3% in February 2026. That is a real discretionary reduction — different in nature from Prince's mechanical conversions. A 4.7-point trim across three quarters by one of the most growth-disciplined long-duration managers in the world is a discretionary stance worth reading. Whether the trim continues into the next 13G/A window will be the bellwether for active-manager conviction.

By contrast, Capital World's build to 11.5% reflects the opposite stance: it is at the highest reported level in the 90-day record. The active money is split — growth specialists trimming, multi-asset platforms adding.

What to Watch

• Cloudflare Q1 2026 earnings (May 8, 2026) — already reported; subsequent 10b5-1 plan amendments or new 13G/A filings inside the post-earnings window are the cleanest signal of intent.
• Q2 2026 13F filing window (August 14, 2026) — first complete read on whether Prince's career trading history matters more than the active-manager flows.
• Baillie Gifford's next 13G/A amendment — required within 10 days of any 1%+ change. Continued trim below 5% triggers exit-filing language.
• 10b5-1 plan disclosure refresh — typically annually; the next Prince plan disclosure should land in late 2026 if the cadence holds.

Quick Take for Holders

The $1.05B headline is the cumulative dollar number across four years of founder liquidity. The actionable read is in the Schedule 13G stack: Prince's 7.7% beneficial ownership remains the second-largest stake in the company, and Capital World Investors' 11.5% active position is the institutional anchor. Anyone running a position should cross-reference the NET holder list against the smart-money signal feed and consult the Learn library for the distinction between Form 4 Table I and Table II transactions — the difference is exactly what makes the Prince story factually distinct from a simple "founder sells" framing.

SEC reference: Matthew Prince Form 4 filings under CIK 0001786925 (latest 2026-04-08, conversion + sale). Personal Schedule 13G/A filed 2026-02-13 disclosing 7.7% beneficial ownership of 26,338,507 Cloudflare shares.