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 |
|---|---|---|---|---|---|---|
| 2026-05-18 | SEIFERT THOMAS J Chief Financial Officer | Option exercise · Employee Stock Option (right to buy) 10b5-1 | −10,000 | 40,000 | ||
| 2026-05-18 | SEIFERT THOMAS J Chief Financial Officer | Option exercise · Class B Common Stock 10b5-1 | +10,000 | 18,925 | ||
| 2026-05-18 | SEIFERT THOMAS J Chief Financial Officer | Conversion · Class B Common Stock 10b5-1 | −10,000 | 8,925 | ||
| 2026-05-15 | SEIFERT THOMAS J Chief Financial Officer | Shares withheld for taxes 10b5-1 | −9,667 | $199.81 | $1.9M | 212,014 |
| 2026-04-17 | SEIFERT THOMAS J Chief Financial Officer | Conversion 10b5-1 | +10,000 | 231,681 | ||
| 2026-04-17 | SEIFERT THOMAS J Chief Financial Officer | Sale 10b5-1 | −2,076 | $195.09 | $405K | 229,605 |
| 2026-04-17 | SEIFERT THOMAS J Chief Financial Officer | Sale 10b5-1 | −1,724 | $196.04 | $338K | 227,881 |
| 2026-04-17 | SEIFERT THOMAS J Chief Financial Officer | Sale 10b5-1 | −1,000 | $196.97 | $197K | 226,881 |
| 2026-04-17 | SEIFERT THOMAS J Chief Financial Officer | Sale 10b5-1 | −600 | $198.04 | $119K | 226,281 |
| 2026-04-17 | SEIFERT THOMAS J Chief Financial Officer | Sale 10b5-1 | −1,475 | $199.48 | $294K | 224,806 |
| 2026-04-17 | SEIFERT THOMAS J Chief Financial Officer | Sale 10b5-1 | −2,725 | $200.51 | $546K | 222,081 |
| 2026-04-17 | SEIFERT THOMAS J Chief Financial Officer | Sale 10b5-1 | −400 | $200.95 | $80K | 221,681 |
| 2026-04-17 | SEIFERT THOMAS J Chief Financial Officer | Option exercise · Employee Stock Option (right to buy) 10b5-1 | −10,000 | 50,000 | ||
| 2026-04-17 | SEIFERT THOMAS J Chief Financial Officer | Option exercise · Class B Common Stock 10b5-1 | +10,000 | 18,925 | ||
| 2026-04-17 | SEIFERT THOMAS J Chief Financial Officer | Conversion · Class B Common Stock 10b5-1 | −10,000 | 8,925 | ||
| 2026-04-15 | SEIFERT THOMAS J Chief Financial Officer | Shares withheld for taxes 10b5-1 | −2,944 | $178.65 | $526K | 221,681 |
| 2026-03-17 | SEIFERT THOMAS J Chief Financial Officer | Conversion 10b5-1 | +10,341 | 234,966 | ||
| 2026-03-17 | SEIFERT THOMAS J Chief Financial Officer | Sale 10b5-1 | −200 | $207.68 | $42K | 234,766 |
| 2026-03-17 | SEIFERT THOMAS J Chief Financial Officer | Sale 10b5-1 | −100 | $208.64 | $21K | 234,666 |
| 2026-03-17 | SEIFERT THOMAS J Chief Financial Officer | Sale 10b5-1 | −3,041 | $211.69 | $644K | 231,625 |
Page 5 of 25 · 492 trades