CIK 0001477333 · Large accelerated filer
Cloudflare, Inc.
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- NET
- Exchange
- NYSE
- Industry
- Services-Prepackaged Software
- FY end
- Dec 31
- Incorporated
- DE
- Entity type
- operating
- EIN
- 270805829
- Phone
- 888.993.5273
- Business address
- 101 TOWNSEND ST., SAN FRANCISCO, CA, 94107
- Open-market buys, last 90 days
- $0
- in 0 filings
- Open-market sales, last 90 days
- $109,558,885
- in 11 filings, $109.6M under 10b5-1 plans
Net −$109,558,885. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.
Who's trading
90 days
- Zatlyn Michelle −$91.2M PRESIDENT & BOARD CO-CHAIR sold 81% of stake
- SEIFERT THOMAS J −$10.1M Chief Financial Officer sold 24% of stake
- Ledbetter Carl −$4.8M Director sold 2% of stake
- Starzak Alissa Michelle −$1.8M Chief Legal Officer sold 5% of stake
- Riley Janel −$1.6M Chief Accounting Officer sold 11% of stake
Reading 100 more Form 4s from the SEC; this list fills in as they're read.
| Date | Insider | Transaction | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|
| 2026-08-04 | SEIFERT THOMAS J Chief Financial Officer | Sale 10b5-1 | −53,861 | $300.28 | $16.2M | 114,929 |
| 2026-08-04 | SEIFERT THOMAS J Chief Financial Officer | Sale 10b5-1 | −1,139 | $301.00 | $343K | 113,790 |
| 2026-08-04 | SEIFERT THOMAS J Chief Financial Officer | Option exercise · Performance Stock Option (right to buy) 10b5-1 | −55,000 | 500,000 | ||
| 2026-07-17 | SEIFERT THOMAS J Chief Financial Officer | Conversion 10b5-1 | +10,000 | 123,790 | ||
| 2026-07-17 | SEIFERT THOMAS J Chief Financial Officer | Sale 10b5-1 | −200 | $266.19 | $53K | 123,590 |
| 2026-07-17 | SEIFERT THOMAS J Chief Financial Officer | Sale 10b5-1 | −100 | $267.76 | $27K | 123,490 |
| 2026-07-17 | SEIFERT THOMAS J Chief Financial Officer | Sale 10b5-1 | −300 | $270.50 | $81K | 123,190 |
| 2026-07-17 | SEIFERT THOMAS J Chief Financial Officer | Sale 10b5-1 | −500 | $274.60 | $137K | 122,690 |
| 2026-07-17 | SEIFERT THOMAS J Chief Financial Officer | Sale 10b5-1 | −1,559 | $275.79 | $430K | 121,131 |
| 2026-07-17 | SEIFERT THOMAS J Chief Financial Officer | Sale 10b5-1 | −1,741 | $276.63 | $482K | 119,390 |
| 2026-07-17 | SEIFERT THOMAS J Chief Financial Officer | Sale 10b5-1 | −3,299 | $277.68 | $916K | 116,091 |
| 2026-07-17 | SEIFERT THOMAS J Chief Financial Officer | Sale 10b5-1 | −1,201 | $278.76 | $335K | 114,890 |
| 2026-07-17 | SEIFERT THOMAS J Chief Financial Officer | Sale 10b5-1 | −800 | $279.91 | $224K | 114,090 |
| 2026-07-17 | SEIFERT THOMAS J Chief Financial Officer | Sale 10b5-1 | −300 | $281.29 | $84K | 113,790 |
| 2026-07-17 | SEIFERT THOMAS J Chief Financial Officer | Option exercise · Employee Stock Option (right to buy) 10b5-1 | −10,000 | 20,000 | ||
| 2026-07-17 | SEIFERT THOMAS J Chief Financial Officer | Option exercise · Class B Common Stock 10b5-1 | +10,000 | 18,925 | ||
| 2026-07-17 | SEIFERT THOMAS J Chief Financial Officer | Conversion · Class B Common Stock 10b5-1 | −10,000 | 8,925 | ||
| 2026-07-15 | SEIFERT THOMAS J Chief Financial Officer | Shares withheld for taxes 10b5-1 | −2,943 | $281.75 | $829K | 113,790 |
| 2026-06-17 | SEIFERT THOMAS J Chief Financial Officer | Conversion 10b5-1 | +10,000 | 126,733 | ||
| 2026-06-17 | SEIFERT THOMAS J Chief Financial Officer | Sale 10b5-1 | −900 | $227.74 | $205K | 125,833 |
Page 3 of 25 · 492 trades