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 |
|---|---|---|---|---|---|---|
| 2026-10-19 | SEIFERT THOMAS J Chief Financial Officer | Option exercise 10b5-1 | +12,500 | $44.72 | $559K | 117,458 |
| 2026-10-19 | SEIFERT THOMAS J Chief Financial Officer | Sale 10b5-1 | −1,100 | $297.29 | $327K | 116,358 |
| 2026-10-19 | SEIFERT THOMAS J Chief Financial Officer | Sale 10b5-1 | −3,401 | $298.32 | $1.0M | 112,957 |
| 2026-10-19 | SEIFERT THOMAS J Chief Financial Officer | Sale 10b5-1 | −3,756 | $299.36 | $1.1M | 109,201 |
| 2026-10-19 | SEIFERT THOMAS J Chief Financial Officer | Sale 10b5-1 | −2,643 | $300.39 | $794K | 106,558 |
| 2026-10-19 | SEIFERT THOMAS J Chief Financial Officer | Sale 10b5-1 | −598 | $301.99 | $181K | 105,960 |
| 2026-10-19 | SEIFERT THOMAS J Chief Financial Officer | Sale 10b5-1 | −502 | $303.26 | $152K | 105,458 |
| 2026-10-19 | SEIFERT THOMAS J Chief Financial Officer | Sale 10b5-1 | −500 | $304.15 | $152K | 104,958 |
| 2026-10-19 | SEIFERT THOMAS J Chief Financial Officer | Option exercise · Performance Stock Option (right to buy) 10b5-1 | −12,500 | 487,500 | ||
| 2026-10-15 | SEIFERT THOMAS J Chief Financial Officer | Shares withheld for taxes 10b5-1 | −2,944 | $316.32 | $931K | 104,958 |
| 2026-09-17 | SEIFERT THOMAS J Chief Financial Officer | Conversion 10b5-1 | +10,000 | 117,902 | ||
| 2026-09-17 | SEIFERT THOMAS J Chief Financial Officer | Sale 10b5-1 | −100 | $318.90 | $32K | 117,802 |
| 2026-09-17 | SEIFERT THOMAS J Chief Financial Officer | Sale 10b5-1 | −100 | $320.89 | $32K | 117,702 |
| 2026-09-17 | SEIFERT THOMAS J Chief Financial Officer | Sale 10b5-1 | −100 | $326.56 | $33K | 117,602 |
| 2026-09-17 | SEIFERT THOMAS J Chief Financial Officer | Sale 10b5-1 | −300 | $328.04 | $98K | 117,302 |
| 2026-09-17 | SEIFERT THOMAS J Chief Financial Officer | Sale 10b5-1 | −700 | $329.37 | $231K | 116,602 |
| 2026-09-17 | SEIFERT THOMAS J Chief Financial Officer | Sale 10b5-1 | −700 | $330.23 | $231K | 115,902 |
| 2026-09-17 | SEIFERT THOMAS J Chief Financial Officer | Sale 10b5-1 | −1,196 | $331.59 | $397K | 114,706 |
| 2026-09-17 | SEIFERT THOMAS J Chief Financial Officer | Sale 10b5-1 | −1,604 | $332.50 | $533K | 113,102 |
| 2026-09-17 | SEIFERT THOMAS J Chief Financial Officer | Sale 10b5-1 | −2,632 | $333.62 | $878K | 110,470 |
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