Matthew Prince sold $3.1M of NET
CEO & Board Co-Chair at Cloudflare, Inc.. 13,618 shares at an average of $227.80, traded Mar 18, 2026, filed Mar 18, 2026.
Score components
- +25RoleCEO
- +25Trade size$3.1M at market
- +20Share of holdings soldSold 100% of holdings
- +15Cluster6 insiders selling within 14 days
- -2010b5-1 planPre-scheduled under a 10b5-1 plan
What happened after comparable sells
Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.
This signal so far: 1m -10.9%, 3m +0.6%, 6m +44.0%.
Price around the trade, and since
From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™
Rows in this filing
Every transaction in Form 4 0001786925-26-000013, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| Mar 18, 2026 | SOpen-market sale Class A Common Stockindirect: See footnote10b5-1 | -4,684 | $227.19 | $1.1M | 8,934 | Mar 18, 2026 |
| Mar 18, 2026 | SOpen-market sale Class A Common Stockindirect: See footnote10b5-1 | -8,474 | $228.08 | $1.9M | 460 | Mar 18, 2026 |
| Mar 18, 2026 | SOpen-market sale Class A Common Stockindirect: See footnote10b5-1 | -460 | $228.79 | $105k | 0 | Mar 18, 2026 |
Related signals
Other insiders at Cloudflare, Inc. and this insider’s other filings.
| Score | Company | Insider | Value | Holdings | Filed |
|---|---|---|---|---|---|
| 38Weak | Cloudflare, Inc. | Michelle Zatlyn President and Board Co-Chair | $35M 99,009 shares | -96% | |
| 35Weak | Cloudflare, Inc. | Carl Ledbetter director | $1.8M 5,000 shares | -1% | |
| 27Weak | Cloudflare, Inc. | Thomas J Seifert Chief Financial Officer | $3.3M 10,000 shares | -8% | |
| 35Weak | Cloudflare, Inc. | Carl Ledbetter director | $1.6M 5,000 shares | -1% | |
| 45Moderate | Cloudflare, Inc. | Michelle Zatlyn PRESIDENT & BOARD CO-CHAIR | $28M 99,009 shares | -96% | |
| 45Moderate | Cloudflare, Inc. | Michelle Zatlyn President and Board Co-Chair | $28M 99,009 shares | -96% | |
| 27Weak | Cloudflare, Inc. | Thomas J Seifert Chief Financial Officer | $3.1M 10,000 shares | -8% | |
| 25Weak | Cloudflare, Inc. | Janel Riley Chief Accounting Officer | $1.6M 5,148 shares | -11% | |
| 20Weak | Cloudflare, Inc. | Alissa Michelle Starzak Chief Legal Officer | $1.8M 5,871 shares | -5% | |
| 17Weak | Cloudflare, Inc. | John Graham-Cumming director | $766k 2,520 shares | -1% |
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.