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144 ·Filed Oct 19, 2026

NET

Cloudflare, Inc.
NEUTRAL
Impact 2/10
Horizondays Processed7d 7h ago SEC0001950047-26-010306
Form 144 — notice of proposed sale of securities
Actionable Insight • Neutral

The 144 is a routine advance notice under a pre-existing 10b5-1 plan; no new insider intent signal. Monitor the Form 4 filing for actual execution and any change in the plan's scope.

DirectionNeutral
Confidencehigh
Horizondays
Latest settled — T+1d ⚠ clustered
NET ▲ +5.32% at T+1d
NEUTRAL call +5.32% · α vs SPY +4.80% · entry $291.69 → $307.22
Next anchor: T+5d due 16h ago
Latest observation: T+3 +18.23% FF3 residual α
Entry = T+0 close
Oct 19, 2026
via day close
T+1d
+5.32%
call +5.32% · α +4.80%
$307.22
settled 7d ago
T+5d
Pending
due 16h ago
T+20d
Pending
in 20d
T+60d
Pending
in 3mo

Price Chart

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Executive Summary

CFO Thomas Seifert filed a Form 144 notice to sell 12,500 shares (~$3.7M) under a 10b5-1 plan, with three prior plan sales in Aug-Sep 2026 totaling 75,000 shares (~$22.9M). The filing is a routine advance notice under an existing trading plan and does not indicate a change in outlook.

Key Facts

  • CFO Thomas Seifert filed Form 144 to sell 12,500 shares of common stock
  • Estimated aggregate value of proposed sale: $3,703,750
  • Sale is pursuant to a 10b5-1 Sales Plan dated 11/20/2025
  • Three prior plan sales in Aug-Sep 2026: 10,000 shares ($3.3M), 10,000 shares ($3.1M), 55,000 shares ($16.5M)
  • Shares acquired via exercise of stock options from the issuer

Financial Impact

Proposed sale of 12,500 shares valued at ~$3.7M; total plan sales in 2026 of 87,500 shares (~$26.6M)

dilution

Risk Factors

  • Insider selling under a 10b5-1 plan — no new directional signal from this filing alone
  • CFO's cumulative plan sales in 2026 total ~$26.6M — watch for any plan amendment or acceleration

Investment Themes

Documents Analyzed

This report is based on 3 SEC documents filed with EDGAR.

DocumentAccession Number
144 Filing (Primary)0001950047-26-010306
Document: 0001950047-26-010306-index.html0001950047-26-010306
Document: 0001950047-26-010306.txt0001950047-26-010306
44 reports for NET
Performance horizon
75% Hit rate @ T+20 3 of 4 directional calls Went positive at some point 4 of 6 best @ T+60▲ +29.18%Jul 7, 2026
Filters
Rows
Reports for NET — sortable, filterable
TypeNow
Oct 26, 2026
today
Institutional Cluster
NEUTRAL ★ 3/10
$327.89awaiting T+20—$331.86 (+1.21%)
Oct 19, 2026
7d ago
Insider Cluster
BEARISH ★ 4/10
$291.69awaiting T+20—$331.86 (−13.77%)
Oct 19, 2026
7d ago
144
NEUTRAL ★ 2/10
$291.69awaiting T+20—$331.86 (+13.77%)
Oct 16, 2026
11d ago
Court Ruling
BEARISH ★ 7/10
$297.58awaiting T+20—$331.86 (−11.52%)
Sep 23, 2026
4w ago
Insider Cluster
NEUTRAL ★ 2/10
$358.82 $303.61▼ −15.39%▼ −14.97%$331.86 (−7.51%)
Sep 21, 2026
5w ago
Insider Cluster
NEUTRAL ★ 2/10
$353.00 $291.69▼ −17.37%▼ −16.81%$331.86 (−5.99%)
Sep 15, 2026
5w ago
Insider Cluster
NEUTRAL ★ 2/10
$324.65 $347.70▲ +7.10%▲ +3.92%$331.86 (+2.22%)
Sep 15, 2026
5w ago
Insider Cluster
NEUTRAL ★ 3/10
$324.65 $347.70▲ +7.10%▲ +3.92%$331.86 (+2.22%)
Sep 2, 2026
7w ago
Court Ruling
BULLISH ★ 5/10
$284.51 $349.07▲ +22.69%▲ +22.90%$331.86 (+16.64%)
Aug 21, 2026
9w ago
Insider Cluster
NEUTRAL ★ 4/10
$280.35 $323.60▲ +15.43%▲ +15.41%$331.86 (+18.37%)
Showing 10 of 44

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Report published Oct 19, 2026