SEIFERT THOMAS J
CIK: 0001473289•CHIEF FINANCIAL OFFICER
Officer
Primary company: Cloudflare, Inc. (NET)
SEIFERT THOMAS J is a corporate insider (CHIEF FINANCIAL OFFICER) at Cloudflare, Inc. (NET) filing SEC Form 4 transactions. 1,153 transactions across 5 companies, totaling $0 in purchases and $257,113,837 in sales. Source: SEC EDGAR.
Companies
Transaction History
Source: SEC EDGAR Form 4 insider transaction filings.
Company | Type | Shares | Price | Value | Shares After | Date | SEC |
|---|---|---|---|---|---|---|---|
| Exercise | 12,500 | $44.72 | $559K | 487,500 | 10/19/2026 Filed: 10/15/2026 | Filing → | |
| Sale | 500 | $304.15 | $152K | 104,958 | 10/19/2026 Filed: 10/15/2026 | Filing → | |
| Sale | 502 | $303.26 | $152K | 105,458 | 10/19/2026 Filed: 10/15/2026 | Filing → | |
| Sale | 598 | $301.99 | $181K | 105,960 | 10/19/2026 Filed: 10/15/2026 | Filing → | |
| Sale | 2,643 | $300.39 | $794K | 106,558 | 10/19/2026 Filed: 10/15/2026 | Filing → | |
| Sale | 3,756 | $299.36 | $1.12M | 109,201 | 10/19/2026 Filed: 10/15/2026 | Filing → | |
| Sale | 3,401 | $298.32 | $1.01M | 112,957 | 10/19/2026 Filed: 10/15/2026 | Filing → | |
| Sale | 1,100 | $297.29 | $327K | 116,358 | 10/19/2026 Filed: 10/15/2026 | Filing → | |
| Exercise | 12,500 | $44.72 | $559K | 117,458 | 10/19/2026 Filed: 10/15/2026 | Filing → | |
| Tax Payment | 2,944 | $316.32 | $931K | 104,958 | 10/15/2026 Filed: 10/15/2026 | Filing → | |
| Conversion | 10,000 | - | - | 8,925 | 9/17/2026 Filed: 9/17/2026 | Filing → | |
| Exercise | 10,000 | - | - | 18,925 | 9/17/2026 Filed: 9/17/2026 | Filing → | |
| Exercise | 10,000 | $2.04 | $20K | 0 | 9/17/2026 Filed: 9/17/2026 | Filing → | |
| Sale | 100 | $336.51 | $34K | 107,902 | 9/17/2026 Filed: 9/17/2026 | Filing → | |
| Sale | 600 | $335.32 | $201K | 108,002 | 9/17/2026 Filed: 9/17/2026 | Filing → | |
| Sale | 1,868 | $334.59 | $625K | 108,602 | 9/17/2026 Filed: 9/17/2026 | Filing → | |
| Sale | 2,632 | $333.62 | $878K | 110,470 | 9/17/2026 Filed: 9/17/2026 | Filing → | |
| Sale | 1,604 | $332.50 | $533K | 113,102 | 9/17/2026 Filed: 9/17/2026 | Filing → | |
| Sale | 1,196 | $331.59 | $397K | 114,706 | 9/17/2026 Filed: 9/17/2026 | Filing → | |
| Sale | 700 | $330.23 | $231K | 115,902 | 9/17/2026 Filed: 9/17/2026 | Filing → |
Type
Exercise
Shares
12,500
Price
$44.72
Value
$559K
Type
Sale
Shares
500
Price
$304.15
Value
$152K
Type
Sale
Shares
502
Price
$303.26
Value
$152K
Type
Sale
Shares
598
Price
$301.99
Value
$181K
Type
Sale
Shares
2,643
Price
$300.39
Value
$794K
Type
Sale
Shares
3,756
Price
$299.36
Value
$1.12M
Type
Sale
Shares
3,401
Price
$298.32
Value
$1.01M
Type
Sale
Shares
1,100
Price
$297.29
Value
$327K
Type
Exercise
Shares
12,500
Price
$44.72
Value
$559K
Type
Tax Payment
Shares
2,944
Price
$316.32
Value
$931K
Type
Conversion
Shares
10,000
Price
-
Value
-
Type
Exercise
Shares
10,000
Price
-
Value
-
Type
Exercise
Shares
10,000
Price
$2.04
Value
$20K
Type
Sale
Shares
100
Price
$336.51
Value
$34K
Type
Sale
Shares
600
Price
$335.32
Value
$201K
Type
Sale
Shares
1,868
Price
$334.59
Value
$625K
Type
Sale
Shares
2,632
Price
$333.62
Value
$878K
Type
Sale
Shares
1,604
Price
$332.50
Value
$533K
Type
Sale
Shares
1,196
Price
$331.59
Value
$397K
Type
Sale
Shares
700
Price
$330.23
Value
$231K
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