Get email alerts when NET insiders make a move — free, no credit card

NET Insider Trading & Form 4 Activity

Cloudflare, Inc.
Last filing: Oct 19, 2026·5 days ago
NEUTRAL · LAST 90 DAYS
0%
buyers
$0
0 buys
$0
0 sells
$0
net buying
0
insiders
Tracking NET insiders takes 3 seconds. Get free alerts →

Net flow — last 12 months

Monthly net of insider buys minus sells. Green months indicate net buying; red months indicate net selling.

Most active insiders

Ranked by total transaction value over the last 90 days.

INSIDERBOUGHTSOLDNET
Zatlyn Michelle
President and Board Co-Chair
—
$91.2M
-$91.2M
Prince Matthew
CEO & Board Co-Chair
—
$46.0M
-$46.0M
Seifert Thomas J
Chief Financial Officer
—
$26.3M
-$26.3M
Ledbetter Carl
Insider
—
$6.3M
-$6.3M
Starzak Alissa Michelle
Chief Legal Officer
—
$1.8M
-$1.8M
Riley Janel
Chief Accounting Officer
—
$1.6M
-$1.6M
Graham-Cumming John
Insider
—
$766K
-$766K
Hawkins Mark J
Insider
—
$37K
-$37K

Recent transactions

Every Form 4 transaction for NET, newest first.

SELL10b5-1
Seifert Thomas J · Chief Financial Officer
Tx Oct 19·Filed Oct 19·EDGAR ↗
3,401 sh @ $298.32
$1.0M
EXERCISE10b5-1
Seifert Thomas J · Chief Financial Officer
Tx Oct 19·Filed Oct 19·EDGAR ↗
12,500 sh @ $44.72
$559K
SELL10b5-1
Seifert Thomas J · Chief Financial Officer
Tx Oct 19·Filed Oct 19·EDGAR ↗
3,756 sh @ $299.36
$1.1M
SELL10b5-1
Seifert Thomas J · Chief Financial Officer
Tx Oct 19·Filed Oct 19·EDGAR ↗
2,643 sh @ $300.39
$794K
SELL10b5-1
Seifert Thomas J · Chief Financial Officer
Tx Oct 19·Filed Oct 19·EDGAR ↗
502 sh @ $303.26
$152K
SELL10b5-1
Seifert Thomas J · Chief Financial Officer
Tx Oct 19·Filed Oct 19·EDGAR ↗
1,100 sh @ $297.29
$327K
SELL10b5-1
Seifert Thomas J · Chief Financial Officer
Tx Oct 19·Filed Oct 19·EDGAR ↗
500 sh @ $304.15
$152K
SELL10b5-1
Ledbetter Carl · Insider
Tx Oct 19·Filed Oct 19·EDGAR ↗
1,106 sh @ $305.60
$338K
SELL10b5-1
Ledbetter Carl · Insider
Tx Oct 19·Filed Oct 19·EDGAR ↗
1,963 sh @ $304.47
$598K
SELL10b5-1
Ledbetter Carl · Insider
Tx Oct 19·Filed Oct 19·EDGAR ↗
1,931 sh @ $303.64
$586K
SELL10b5-1
Seifert Thomas J · Chief Financial Officer
Tx Oct 19·Filed Oct 19·EDGAR ↗
598 sh @ $301.99
$181K
TAX10b5-1
Seifert Thomas J · Chief Financial Officer
Tx Oct 15·Filed Oct 19·EDGAR ↗
2,944 sh @ $316.32
$931K
SELL10b5-1
Zatlyn Michelle · President and Board Co-Chair
Tx Oct 7·Filed Oct 7·EDGAR ↗
297 sh @ $352.25
$105K
SELL10b5-1
Zatlyn Michelle · President and Board Co-Chair
Tx Oct 7·Filed Oct 7·EDGAR ↗
4,240 sh @ $350.37
$1.5M
SELL10b5-1
Zatlyn Michelle · President and Board Co-Chair
Tx Oct 7·Filed Oct 7·EDGAR ↗
9,022 sh @ $347.20
$3.1M
SELL10b5-1
Zatlyn Michelle · President and Board Co-Chair
Tx Oct 7·Filed Oct 7·EDGAR ↗
2,162 sh @ $351.40
$760K
OTHER10b5-1
Zatlyn Michelle · President and Board Co-Chair
Tx Oct 7·Filed Oct 7·EDGAR ↗
33,003 sh
—
SELL10b5-1
Zatlyn Michelle · President and Board Co-Chair
Tx Oct 7·Filed Oct 7·EDGAR ↗
3,900 sh @ $349.38
$1.4M
SELL10b5-1
Zatlyn Michelle · President and Board Co-Chair
Tx Oct 7·Filed Oct 7·EDGAR ↗
7,688 sh @ $348.23
$2.7M
SELL10b5-1
Zatlyn Michelle · President and Board Co-Chair
Tx Oct 7·Filed Oct 7·EDGAR ↗
5,694 sh @ $346.40
$2.0M
SELL10b5-1
Zatlyn Michelle · President and Board Co-Chair
Tx Oct 6·Filed Oct 7·EDGAR ↗
9,170 sh @ $366.65
$3.4M
SELL10b5-1
Zatlyn Michelle · President and Board Co-Chair
Tx Oct 6·Filed Oct 7·EDGAR ↗
6,179 sh @ $365.69
$2.3M
SELL10b5-1
Zatlyn Michelle · President and Board Co-Chair
Tx Oct 6·Filed Oct 7·EDGAR ↗
4,083 sh @ $368.59
$1.5M
SELL10b5-1
Zatlyn Michelle · President and Board Co-Chair
Tx Oct 6·Filed Oct 7·EDGAR ↗
8,559 sh @ $367.72
$3.1M
SELL10b5-1
Zatlyn Michelle · President and Board Co-Chair
Tx Oct 6·Filed Oct 7·EDGAR ↗
4,260 sh @ $364.39
$1.6M
OTHER10b5-1
Zatlyn Michelle · President and Board Co-Chair
Tx Oct 6·Filed Oct 7·EDGAR ↗
33,003 sh
—
SELL10b5-1
Zatlyn Michelle · President and Board Co-Chair
Tx Oct 6·Filed Oct 7·EDGAR ↗
752 sh @ $369.34
$278K
SELL10b5-1
Zatlyn Michelle · President and Board Co-Chair
Tx Oct 5·Filed Oct 7·EDGAR ↗
3,619 sh @ $349.07
$1.3M
SELL10b5-1
Zatlyn Michelle · President and Board Co-Chair
Tx Oct 5·Filed Oct 7·EDGAR ↗
6,864 sh @ $352.39
$2.4M
SELL10b5-1
Zatlyn Michelle · President and Board Co-Chair
Tx Oct 5·Filed Oct 7·EDGAR ↗
2,823 sh @ $354.32
$1.0M
SELL10b5-1
Zatlyn Michelle · President and Board Co-Chair
Tx Oct 5·Filed Oct 7·EDGAR ↗
5,892 sh @ $353.35
$2.1M
SELL10b5-1
Zatlyn Michelle · President and Board Co-Chair
Tx Oct 5·Filed Oct 7·EDGAR ↗
6,136 sh @ $355.45
$2.2M
SELL10b5-1
Zatlyn Michelle · President and Board Co-Chair
Tx Oct 5·Filed Oct 7·EDGAR ↗
2,683 sh @ $350.09
$939K
SELL10b5-1
Zatlyn Michelle · President and Board Co-Chair
Tx Oct 5·Filed Oct 7·EDGAR ↗
4,829 sh @ $351.30
$1.7M
OTHER10b5-1
Zatlyn Michelle · President and Board Co-Chair
Tx Oct 5·Filed Oct 7·EDGAR ↗
33,003 sh
—
SELL10b5-1
Zatlyn Michelle · President and Board Co-Chair
Tx Oct 5·Filed Oct 7·EDGAR ↗
157 sh @ $356.05
$56K
SELL10b5-1
Ledbetter Carl · Insider
Tx Sep 22·Filed Sep 23·EDGAR ↗
5,000 sh @ $353.15
$1.8M
SELL10b5-1
Seifert Thomas J · Chief Financial Officer
Tx Sep 17·Filed Sep 21·EDGAR ↗
1,196 sh @ $331.59
$397K
SELL10b5-1
Seifert Thomas J · Chief Financial Officer
Tx Sep 17·Filed Sep 21·EDGAR ↗
1,604 sh @ $332.50
$533K
SELL10b5-1
Seifert Thomas J · Chief Financial Officer
Tx Sep 17·Filed Sep 21·EDGAR ↗
300 sh @ $328.04
$98K
SELL10b5-1
Seifert Thomas J · Chief Financial Officer
Tx Sep 17·Filed Sep 21·EDGAR ↗
2,632 sh @ $333.62
$878K
OTHER10b5-1
Seifert Thomas J · Chief Financial Officer
Tx Sep 17·Filed Sep 21·EDGAR ↗
10,000 sh
—
SELL10b5-1
Seifert Thomas J · Chief Financial Officer
Tx Sep 17·Filed Sep 21·EDGAR ↗
700 sh @ $329.37
$231K
SELL10b5-1
Seifert Thomas J · Chief Financial Officer
Tx Sep 17·Filed Sep 21·EDGAR ↗
100 sh @ $318.90
$32K
SELL10b5-1
Seifert Thomas J · Chief Financial Officer
Tx Sep 17·Filed Sep 21·EDGAR ↗
1,868 sh @ $334.59
$625K
SELL10b5-1
Seifert Thomas J · Chief Financial Officer
Tx Sep 17·Filed Sep 21·EDGAR ↗
600 sh @ $335.32
$201K
TAX
Seifert Thomas J · Chief Financial Officer
Tx Sep 15·Filed Sep 15·EDGAR ↗
2,944 sh @ $327.23
$963K
SELL10b5-1
Ledbetter Carl · Insider
Tx Sep 14·Filed Sep 15·EDGAR ↗
960 sh @ $309.51
$297K
SELL10b5-1
Ledbetter Carl · Insider
Tx Sep 14·Filed Sep 15·EDGAR ↗
2,400 sh @ $312.86
$751K
SELL10b5-1
Ledbetter Carl · Insider
Tx Sep 14·Filed Sep 15·EDGAR ↗
440 sh @ $310.54
$137K

Track every ticker you care about

Free plan includes 3 tickers, daily insider scans, and cluster alerts. No credit card.

Start free (3 tickers)See plans

Join investors tracking SEC filings.

About NET insider trading data

Form 4 is the SEC filing required when an officer, director, or 10% owner of a public company buys or sells the company's stock. By law, these filings must be submitted within two business days of the trade. Tracenotes pulls every Form 4 filing for NET from EDGAR, parses it, and surfaces the activity on this page.

What insider buying tells you. Open-market purchases by insiders are widely studied as a meaningful signal. Unlike stock awards (which are compensation, not conviction), an executive spending their own money to buy shares of the company they run is a vote of confidence. Studies have found insider-buying clusters — three or more insiders buying within a short window — outperform the broader market over the following year.

What insider selling tells you. Selling is noisier. Many sales are pre-scheduled under SEC Rule 10b5-1 plans, which let insiders sell on a fixed schedule regardless of company news. We label these "10b5-1" so you can see them. Discretionary sales — sales not tied to a plan — are more meaningful, especially when multiple insiders sell in quick succession.

Tracenotes methodology. We scan EDGAR daily for new Form 4 filings, parse them into individual transactions, and detect clusters when three or more distinct insiders buy or sell within a 14-day window. The data on this page covers the last 12 months. For deeper analysis, Tracenotes also runs language-change detection on 10-K and 10-Q filings — that's our core product.

See this for every ticker.

Tracenotes covers the S&P 500 and beyond. Pick any ticker — get the same depth of insider trading data.

AAPLNVDAMSFTTSLA

Free plan available — no credit card. Sign up free →

Frequently asked questions

What is a Form 4 filing?

Form 4 is the SEC disclosure required when a company insider — an officer, director, or 10% owner — buys or sells the company's stock. By law these filings must be submitted within two business days of the trade.

Is insider buying NET always bullish?

Open-market purchases by insiders are widely viewed as a bullish signal because executives are spending their own money. Stock awards and option exercises are part of compensation and don't carry the same weight, which is why we treat them separately on this page.

What is a 10b5-1 trade?

A trade made under SEC Rule 10b5-1, which lets insiders pre-schedule sales weeks or months in advance. These sales execute on a fixed plan regardless of company news, so they're a weaker signal than discretionary sales. We label them with a "10b5-1" tag.

What is an insider cluster?

A cluster is when three or more distinct insiders buy or sell within a 14-day window. Clusters are studied as stronger signals than single trades because multiple people independently reach the same view. We surface active clusters on Cloudflare, Inc. (NET) when they form.

Where does NET insider trading data come from?

Every Form 4 filing for NET is sourced directly from SEC EDGAR. Tracenotes scans EDGAR daily, parses each Form 4 into individual transactions, and updates this page within hours of new filings.

Nothing on this page constitutes investment advice. Form 4 data is sourced from SEC EDGAR and provided for research purposes only.

© 2026 Tracenotes · tracenotes.ai