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 |
|---|---|---|---|---|---|---|
| 2026-09-17 | SEIFERT THOMAS J Chief Financial Officer | Sale 10b5-1 | −1,868 | $334.59 | $625K | 108,602 |
| 2026-09-17 | SEIFERT THOMAS J Chief Financial Officer | Sale 10b5-1 | −600 | $335.32 | $201K | 108,002 |
| 2026-09-17 | SEIFERT THOMAS J Chief Financial Officer | Sale 10b5-1 | −100 | $336.51 | $34K | 107,902 |
| 2026-09-17 | SEIFERT THOMAS J Chief Financial Officer | Option exercise · Employee Stock Option (right to buy) 10b5-1 | −10,000 | 0 | ||
| 2026-09-17 | SEIFERT THOMAS J Chief Financial Officer | Option exercise · Class B Common Stock 10b5-1 | +10,000 | 18,925 | ||
| 2026-09-17 | SEIFERT THOMAS J Chief Financial Officer | Conversion · Class B Common Stock 10b5-1 | −10,000 | 8,925 | ||
| 2026-09-15 | SEIFERT THOMAS J Chief Financial Officer | Shares withheld for taxes | −2,944 | $327.23 | $963K | 107,902 |
| 2026-08-17 | SEIFERT THOMAS J Chief Financial Officer | Conversion 10b5-1 | +10,000 | 120,846 | ||
| 2026-08-17 | SEIFERT THOMAS J Chief Financial Officer | Sale 10b5-1 | −900 | $305.25 | $275K | 119,946 |
| 2026-08-17 | SEIFERT THOMAS J Chief Financial Officer | Sale 10b5-1 | −2,944 | $306.24 | $902K | 117,002 |
| 2026-08-17 | SEIFERT THOMAS J Chief Financial Officer | Sale 10b5-1 | −2,456 | $307.29 | $755K | 114,546 |
| 2026-08-17 | SEIFERT THOMAS J Chief Financial Officer | Sale 10b5-1 | −3,100 | $308.23 | $956K | 111,446 |
| 2026-08-17 | SEIFERT THOMAS J Chief Financial Officer | Sale 10b5-1 | −300 | $309.07 | $93K | 111,146 |
| 2026-08-17 | SEIFERT THOMAS J Chief Financial Officer | Sale 10b5-1 | −200 | $312.32 | $62K | 110,946 |
| 2026-08-17 | SEIFERT THOMAS J Chief Financial Officer | Sale 10b5-1 | −100 | $314.61 | $31K | 110,846 |
| 2026-08-17 | SEIFERT THOMAS J Chief Financial Officer | Option exercise · Employee Stock Option (right to buy) 10b5-1 | −10,000 | 10,000 | ||
| 2026-08-17 | SEIFERT THOMAS J Chief Financial Officer | Option exercise · Class B Common Stock 10b5-1 | +10,000 | 18,925 | ||
| 2026-08-17 | SEIFERT THOMAS J Chief Financial Officer | Conversion · Class B Common Stock 10b5-1 | −10,000 | 8,925 | ||
| 2026-08-15 | SEIFERT THOMAS J Chief Financial Officer | Shares withheld for taxes | −2,944 | $315.78 | $930K | 110,846 |
| 2026-08-04 | SEIFERT THOMAS J Chief Financial Officer | Option exercise 10b5-1 | +55,000 | $44.72 | $2.5M | 168,790 |
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