Thomas J Seifert Insider Trades & Stock Holdings

Chief Financial Officer · Cloudflare, Inc. · Latest filing Oct 19, 2026

Thomas J Seifert, Chief Financial Officer at Cloudflare, Inc. has 1 Form 4 trade on file since Oct 19, 2026. Open-market activity: 0 purchases ($0) and 1 sale ($3.74M), net -$3.74M. Latest filing: disposed of 12.50K shares of $NET on Oct 19, 2026 at $299.59.

Trades on file

1

Open-market bought

$0

Open-market sold

$3.74M

Net open-market

-$3.74M

Shares held ($NET)

104.96K

Latest filing

Oct 19, 2026

Shares held by Thomas J Seifert

• $NET104.96K sh

Shares owned after the most recent Form 4 for each company.

All insider trades by Thomas J Seifert

Date	Ticker	Type	Shares	Price	Value	Owned after	ΔOwn	1W	1M	6M	Role	Filing	Story
Oct 19, 2026	$NET	Sell (Open-market sale) 10b5-1	12.50K	$299.59	$3.74M	104.96K	-10.64%				Chief Financial Officer	SEC	Read

"Buy" means shares acquired on the Form 4 (including grants and option exercises); "Sell" means shares disposed. 1W / 1M / 6M = how the stock moved after the trade.

Stocks Thomas J Seifert traded

• $NET

Frequently asked questions

Has Thomas J Seifert been buying or selling stock?

Thomas J Seifert has 0 open-market purchases and 1 open-market sale on file, net -$3.74M. Grants, option exercises and tax withholding are listed separately because they are not open-market trades.

What was Thomas J Seifert's latest insider trade?

disposed of 12.50K shares of $NET on Oct 19, 2026 at $299.59.

Data comes from public SEC Form 4 and 13F filings and STOCK Act disclosures. Dates are the trade or filing date reported. This page is for research only and is not investment advice.