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Insider

Thomas J Seifert

Chief Financial Officer

Thomas J Seifert (Chief Financial Officer) filed 14 Form 4 reports in the trailing twelve months (0 purchases, 14 sales), most often in Cloudflare, Inc. (NET). The largest single filing was $16.5M of NET (55,000 sh across 2 lots, as filed), executed Aug 4.

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Return, ttmiAverage return per filing, trailing twelve months
no purchases on file
Delay-adjustediThe same average, entered at disclosure dates
returns measure stock purchases only
Filings, ttm
14
0 buys · 14 sells
Median delay
execution → disclosure
Volume, ttmiDollar value disclosed in the trailing twelve months
$54.3M
shares × price, as filed
Last traded
Sep 17
Filed yesterday

Median ADV $1.1B across their filed names

Open performance
Volume by month
$20.5M$10.3M$0Oct 2024Apr 2025Oct 2025Apr 2026Oct 2024 · sells $2.6MNov 2024 · sells $4.0MDec 2024 · sells $3.0MJan 2025 · sells $9.5MFeb 2025 · sells $6.5MMar 2025 · sells $3.3MApr 2025 · sells $1.2MMay 2025 · sells $6.5MJun 2025 · sells $1.8MJul 2025 · sells $20.5MAug 2025 · sells $7.9MSep 2025 · sells $2.1MOct 2025 · sells $2.1MNov 2025 · sells $8.0MDec 2025 · sells $1.8MJan 2026 · sells $1.8MFeb 2026 · sells $7.4MMar 2026 · sells $2.1MApr 2026 · sells $1.9MMay 2026 · sells $1.8MJun 2026 · sells $2.3MJul 2026 · sells $2.5MAug 2026 · sells $19.4MSep 2026 · sells $3.1M
Buys $0 Sells $123.2M

Shares × price, as filed · by filing month · past 24 months

Sectors filed on
Technology 14 filings

Sector per market data · by filing · past 12 months

Most traded names
NET Cloudflare, Inc. NET · 0 buys · 32 sells 32 filings
Recent filings
NETSALE Cloudflare, Inc. View filing → $7.8M
65,000 sh across 5 lots
Exec Jan 17 2025
Filed Jan 21 2025 · 5:30 PM ET
NETSALE Cloudflare, Inc. View filing → $1.7M
15,000 sh across 3 lots
Exec Jan 3 2025
Filed Jan 6 2025 · 5:30 PM ET
NETSALE Cloudflare, Inc. View filing → $1.5M
13,700 sh across 6 lots
Exec Dec 18 2024
Filed Dec 19 2024 · 5:30 PM ET
NETSALE Cloudflare, Inc. View filing → $1.5M
13,566 sh across 2 lots
Exec Dec 4 2024
Filed Dec 5 2024 · 5:30 PM ET