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 |
|---|---|---|---|---|---|---|
| 2025-11-20 | SEIFERT THOMAS J Chief Financial Officer | Sale 10b5-1 | −1,703 | $200.42 | $341K | 138,886 |
| 2025-11-20 | SEIFERT THOMAS J Chief Financial Officer | Sale 10b5-1 | −1,300 | $202.31 | $263K | 137,586 |
| 2025-11-20 | SEIFERT THOMAS J Chief Financial Officer | Sale 10b5-1 | −100 | $202.96 | $20K | 137,486 |
| 2025-11-20 | SEIFERT THOMAS J Chief Financial Officer | Option exercise · Employee Stock Option (right to buy) 10b5-1 | −10,000 | 100,341 | ||
| 2025-11-20 | SEIFERT THOMAS J Chief Financial Officer | Option exercise · Class B Common Stock 10b5-1 | +10,000 | 18,925 | ||
| 2025-11-20 | SEIFERT THOMAS J Chief Financial Officer | Conversion · Class B Common Stock 10b5-1 | −10,000 | 8,925 | ||
| 2025-11-15 | SEIFERT THOMAS J Chief Financial Officer | Shares withheld for taxes | −20,476 | $210.60 | $4.3M | 169,041 |
| 2025-10-20 | SEIFERT THOMAS J Chief Financial Officer | Conversion 10b5-1 | +10,000 | 199,517 | ||
| 2025-10-20 | SEIFERT THOMAS J Chief Financial Officer | Sale 10b5-1 | −500 | $209.62 | $105K | 199,017 |
| 2025-10-20 | SEIFERT THOMAS J Chief Financial Officer | Sale 10b5-1 | −2,600 | $210.78 | $548K | 196,417 |
| 2025-10-20 | SEIFERT THOMAS J Chief Financial Officer | Sale 10b5-1 | −2,754 | $211.71 | $583K | 193,663 |
| 2025-10-20 | SEIFERT THOMAS J Chief Financial Officer | Sale 10b5-1 | −3,846 | $212.75 | $818K | 189,817 |
| 2025-10-20 | SEIFERT THOMAS J Chief Financial Officer | Sale 10b5-1 | −300 | $213.40 | $64K | 189,517 |
| 2025-10-20 | SEIFERT THOMAS J Chief Financial Officer | Option exercise · Employee Stock Option (right to buy) 10b5-1 | −10,000 | 110,341 | ||
| 2025-10-20 | SEIFERT THOMAS J Chief Financial Officer | Option exercise · Class B Common Stock 10b5-1 | +10,000 | 18,925 | ||
| 2025-10-20 | SEIFERT THOMAS J Chief Financial Officer | Conversion · Class B Common Stock 10b5-1 | −10,000 | 8,925 | ||
| 2025-09-22 | SEIFERT THOMAS J Chief Financial Officer | Conversion 10b5-1 | +10,000 | 199,517 | ||
| 2025-09-22 | SEIFERT THOMAS J Chief Financial Officer | Sale 10b5-1 | −1,000 | $223.49 | $223K | 198,517 |
| 2025-09-22 | SEIFERT THOMAS J Chief Financial Officer | Sale 10b5-1 | −600 | $224.47 | $135K | 197,917 |
| 2025-09-22 | SEIFERT THOMAS J Chief Financial Officer | Sale 10b5-1 | −400 | $226.22 | $90K | 197,517 |
Page 9 of 25 · 492 trades