SEIFERT THOMAS J

CIK 00014732895 companiesAUSTIN, TX

SEC Profile

Transactions

Companies

Filings

CIK

0001473289

Recent Transactions

50 trades

Sale
Cloudflare, Inc.$NET
Class A Common Stock
2026-01-20$177.17/sh−3,472→ 143,086 total
Exercise/Conversion
Cloudflare, Inc.$NET
Class B Common Stock
2026-01-20+10,000→ 18,925 total
Conversion
Cloudflare, Inc.$NET
Class B Common Stock
2026-01-20−10,000→ 8,925 total
Sale
Cloudflare, Inc.$NET
Class A Common Stock
2026-01-20$181.27/sh−600→ 137,586 total
Exercise/Conversion
Cloudflare, Inc.$NET
Employee Stock Option (right to buy)
2026-01-20−10,000→ 80,341 total
Sale
Cloudflare, Inc.$NET
Class A Common Stock
2026-01-20$176.27/sh−928→ 146,558 total
Sale
Cloudflare, Inc.$NET
Class A Common Stock
2026-01-20$178.08/sh−1,800→ 141,286 total
Sale
Cloudflare, Inc.$NET
Class A Common Stock
2026-01-20$180.09/sh−1,900→ 138,186 total
Sale
Cloudflare, Inc.$NET
Class A Common Stock
2026-01-20$179.41/sh−1,200→ 140,086 total
Conversion
Cloudflare, Inc.$NET
Class A Common Stock
2026-01-20+10,000→ 147,486 total
Sale
Cloudflare, Inc.$NET
Class A Common Stock
2026-01-20$181.98/sh−100→ 137,486 total
Sale
Cloudflare, Inc.$NET
Class A Common Stock
2025-11-20$193.50/sh−2,725→ 152,047 total
Sale
Cloudflare, Inc.$NET
Class A Common Stock
2025-11-20$202.31/sh−1,300→ 137,586 total
Sale
Cloudflare, Inc.$NET
Class A Common Stock
2025-11-20$198.83/sh−2,700→ 143,989 total
Sale
Cloudflare, Inc.$NET
Class A Common Stock
2025-11-20$192.47/sh−8,666→ 154,772 total
Sale
Cloudflare, Inc.$NET
Class A Common Stock
2025-11-20$195.55/sh−1,500→ 148,647 total
Sale
Cloudflare, Inc.$NET
Class A Common Stock
2025-11-20$194.34/sh−1,900→ 150,147 total
Conversion
Cloudflare, Inc.$NET
Class A Common Stock
2025-11-20+10,000→ 179,041 total
Exercise/Conversion
Cloudflare, Inc.$NET
Employee Stock Option (right to buy)
2025-11-20−10,000→ 100,341 total
Exercise/Conversion
Cloudflare, Inc.$NET
Class B Common Stock
2025-11-20+10,000→ 18,925 total
Sale
Cloudflare, Inc.$NET
Class A Common Stock
2025-11-20$197.65/sh−1,358→ 146,689 total
Sale
Cloudflare, Inc.$NET
Class A Common Stock
2025-11-20$196.39/sh−600→ 148,047 total
Sale
Cloudflare, Inc.$NET
Class A Common Stock
2025-11-20$191.45/sh−13,331→ 163,438 total
Sale
Cloudflare, Inc.$NET
Class A Common Stock
2025-11-20$190.31/sh−2,272→ 176,769 total
Sale
Cloudflare, Inc.$NET
Class A Common Stock
2025-11-20$200.42/sh−1,703→ 138,886 total
Sale
Cloudflare, Inc.$NET
Class A Common Stock
2025-11-20$202.96/sh−100→ 137,486 total
Sale
Cloudflare, Inc.$NET
Class A Common Stock
2025-11-20$199.75/sh−3,400→ 140,589 total
Conversion
Cloudflare, Inc.$NET
Class B Common Stock
2025-11-20−10,000→ 8,925 total
Tax Payment
Cloudflare, Inc.$NET
Class A Common Stock
2025-11-15$210.60/sh−20,476→ 169,041 total
Conversion
Cloudflare, Inc.$NET
Class B Common Stock
2025-10-20−10,000→ 8,925 total
Sale
Cloudflare, Inc.$NET
Class A Common Stock
2025-10-20$210.78/sh−2,600→ 196,417 total
Conversion
Cloudflare, Inc.$NET
Class A Common Stock
2025-10-20+10,000→ 199,517 total
Exercise/Conversion
Cloudflare, Inc.$NET
Employee Stock Option (right to buy)
2025-10-20−10,000→ 110,341 total
Sale
Cloudflare, Inc.$NET
Class A Common Stock
2025-10-20$213.40/sh−300→ 189,517 total
Exercise/Conversion
Cloudflare, Inc.$NET
Class B Common Stock
2025-10-20+10,000→ 18,925 total
Sale
Cloudflare, Inc.$NET
Class A Common Stock
2025-10-20$209.62/sh−500→ 199,017 total
Sale
Cloudflare, Inc.$NET
Class A Common Stock
2025-10-20$211.71/sh−2,754→ 193,663 total
Sale
Cloudflare, Inc.$NET
Class A Common Stock
2025-10-20$212.75/sh−3,846→ 189,817 total
Sale
Cloudflare, Inc.$NET
Class A Common Stock
2025-09-22$228.29/sh−3,022→ 192,695 total
Exercise/Conversion
Cloudflare, Inc.$NET
Employee Stock Option (right to buy)
2025-09-22−10,000→ 120,341 total
Exercise/Conversion
Cloudflare, Inc.$NET
Class B Common Stock
2025-09-22+10,000→ 18,925 total
Sale
Cloudflare, Inc.$NET
Class A Common Stock
2025-09-22$226.22/sh−400→ 197,517 total
Sale
Cloudflare, Inc.$NET
Class A Common Stock
2025-09-22$224.47/sh−600→ 197,917 total
Sale
Cloudflare, Inc.$NET
Class A Common Stock
2025-09-22$227.15/sh−1,800→ 195,717 total
Conversion
Cloudflare, Inc.$NET
Class B Common Stock
2025-09-22−10,000→ 8,925 total
Sale
Cloudflare, Inc.$NET
Class A Common Stock
2025-09-22$229.33/sh−2,778→ 189,917 total
Conversion
Cloudflare, Inc.$NET
Class A Common Stock
2025-09-22+10,000→ 199,517 total
Sale
Cloudflare, Inc.$NET
Class A Common Stock
2025-09-22$229.93/sh−400→ 189,517 total
Sale
Cloudflare, Inc.$NET
Class A Common Stock
2025-09-22$223.49/sh−1,000→ 198,517 total
Sale
Cloudflare, Inc.$NET
Class A Common Stock
2025-08-20$187.84/sh−2,300→ 226,072 total

Companies

Recent Filings

Address

C/O CLOUDFLARE, INC. 405 COMAL STREET

AUSTIN, TX, 78702

View on SEC.gov