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sellNotable cluster of 710b5-1 plan

Matthew Prince sold $35M of NET

CEO & Board Co-Chair at Cloudflare, Inc.. 157,152 shares at an average of $221.89, traded Sep 9, 2025, filed Sep 11, 2025.

Warning score
65
Value
$35M
157,152 shares
Holdings after
0
-300% from before
From 52-week low
+180%
low $78.09, close $218.56
From 52-week high
0%
high $218.56, as of Sep 9, 2025

Score components

  • Role
    CEO
    +25
  • Trade size
    $34.9M at market
    +25
  • Share of holdings sold
    Sold 100% of holdings
    +20
  • Cluster
    7 insiders selling within 14 days
    +15
  • 10b5-1 plan
    Pre-scheduled under a 10b5-1 plan
    -20

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.

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.

NETOct 9, 2026 · close 360.93
Since filing Sep 11, 2025: +60.7%SPY +20.0% · excess +40.7%

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 0001786925-25-000007, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Sep 9, 2025CConversion
Class A Common Stockindirect: See footnote10b5-1
+32,273--52,384Sep 11, 2025
Sep 9, 2025SOpen-market sale
Class A Common Stockindirect: See footnote10b5-1
-7,384$215.62$1.6M45,000Sep 11, 2025
Sep 9, 2025SOpen-market sale
Class A Common Stockindirect: See footnote10b5-1
-18,614$216.51$4.0M26,386Sep 11, 2025
Sep 9, 2025SOpen-market sale
Class A Common Stockindirect: See footnote10b5-1
-12,766$217.37$2.8M13,620Sep 11, 2025
Sep 9, 2025SOpen-market sale
Class A Common Stockindirect: See footnote10b5-1
-13,247$218.51$2.9M373Sep 11, 2025
Sep 9, 2025SOpen-market sale
Class A Common Stockindirect: See footnote10b5-1
-373$219.03$82k0Sep 11, 2025
Sep 10, 2025CConversion
Class A Common Stockindirect: See footnote10b5-1
+52,384--52,384Sep 11, 2025
Sep 10, 2025SOpen-market sale
Class A Common Stockindirect: See footnote10b5-1
-4,530$220.13$997k47,854Sep 11, 2025
Sep 10, 2025SOpen-market sale
Class A Common Stockindirect: See footnote10b5-1
-10,261$221.10$2.3M37,593Sep 11, 2025
Sep 10, 2025SOpen-market sale
Class A Common Stockindirect: See footnote10b5-1
-19,587$222.04$4.3M18,006Sep 11, 2025
Sep 10, 2025SOpen-market sale
Class A Common Stockindirect: See footnote10b5-1
-13,372$222.89$3.0M4,634Sep 11, 2025
Sep 10, 2025SOpen-market sale
Class A Common Stockindirect: See footnote10b5-1
-3,192$223.92$715k1,442Sep 11, 2025
Sep 10, 2025SOpen-market sale
Class A Common Stockindirect: See footnote10b5-1
-1,442$224.72$324k0Sep 11, 2025
Sep 11, 2025CConversion
Class A Common Stockindirect: See footnote10b5-1
+52,384--52,384Sep 11, 2025
Sep 11, 2025SOpen-market sale
Class A Common Stockindirect: See footnote10b5-1
-4,582$223.98$1.0M47,802Sep 11, 2025
Sep 11, 2025SOpen-market sale
Class A Common Stockindirect: See footnote10b5-1
-12,522$224.95$2.8M35,280Sep 11, 2025
Sep 11, 2025SOpen-market sale
Class A Common Stockindirect: See footnote10b5-1
-11,736$225.88$2.7M23,544Sep 11, 2025
Sep 11, 2025SOpen-market sale
Class A Common Stockindirect: See footnote10b5-1
-7,422$226.87$1.7M16,122Sep 11, 2025
Sep 11, 2025SOpen-market sale
Class A Common Stockindirect: See footnote10b5-1
-7,478$227.93$1.7M8,644Sep 11, 2025
Sep 11, 2025SOpen-market sale
Class A Common Stockindirect: See footnote10b5-1
-6,418$228.95$1.5M2,226Sep 11, 2025
Sep 11, 2025SOpen-market sale
Class A Common Stockindirect: See footnote10b5-1
-2,226$229.74$511k0Sep 11, 2025
Sep 9, 2025CConversion
Class B Common Stockderivativeindirect: See footnote10b5-1
-32,273$0.00$06,239,062Sep 11, 2025
Sep 10, 2025CConversion
Class B Common Stockderivativeindirect: See footnote10b5-1
-52,384$0.00$06,186,678Sep 11, 2025
Sep 11, 2025CConversion
Class B Common Stockderivativeindirect: See footnote10b5-1
-52,384$0.00$06,134,294Sep 11, 2025

Related signals

Other insiders at Cloudflare, Inc. and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
38Weak
NETsell 210b5-1
Cloudflare, Inc.
Michelle Zatlyn
President and Board Co-Chair
$35M
99,009 shares
-96%
35Weak
NETsell 310b5-1
Cloudflare, Inc.
Carl Ledbetter
director
$1.8M
5,000 shares
-1%
27Weak
NETsell 310b5-1
Cloudflare, Inc.
Thomas J Seifert
Chief Financial Officer
$3.3M
10,000 shares
-8%
35Weak
NETsell 310b5-1
Cloudflare, Inc.
Carl Ledbetter
director
$1.6M
5,000 shares
-1%
45Moderate
NETsell 310b5-1
Cloudflare, Inc.
Michelle Zatlyn
PRESIDENT & BOARD CO-CHAIR
$28M
99,009 shares
-96%
35Weak
NETsell 410b5-1
Cloudflare, Inc.
Carl Ledbetter
director
$1.8M
8,866 shares
-1%
27Weak
NETsell 510b5-1
Cloudflare, Inc.
Thomas J Seifert
Chief Financial Officer
$2.0M
10,000 shares
-7%
26Weak
NETsell 510b5-1
Cloudflare, Inc.
Katrin Suder
director
$406k
2,031 shares
-5%
13Weak
NETsell 810b5-1
Cloudflare, Inc.
John Graham-Cumming
director
$502k
2,520 shares
-1%
45Moderate
NETsell 710b5-1
Cloudflare, Inc.
Michelle Zatlyn
President and Board Co-Chair
$16M
76,923 shares
-153%

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.