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Insider Cluster (4 insiders) ·Filed Feb 24, 2026

CGEM

Cullinan Therapeutics, Inc.
BEARISH
Impact 5/10
Horizondays Processed8mo ago
Insider cluster: 4 insiders, $0.3M total
Actionable Insight ▼ Bearish

Monitor for additional insider selling in coming weeks; consider whether this reflects profit-taking post-earnings or broader concerns about valuation or pipeline progress. Lack of offsetting buys from leadership is a negative signal.

DirectionBearish
Confidencehigh
Horizondays
Final — all horizons settled through T+60d ⚠ clustered
CGEM ▼ -0.67% at T+60d
SHORT call ✓ call won +0.67% · α vs SPY +7.41% · entry $14.27 → $14.18
Entry = T+0 close
Feb 23, 2026
via day close
T+1d
+0.63%
call -0.63% · α +0.20%
$14.36
settled 8mo ago
T+5d
+10.23%
call -10.23% · α -11.26%
$15.73
settled 8mo ago
T+20d
-4.41%
call +4.41% · α -0.57%
$13.64
settled 7mo ago
T+60d
-0.67%
call +0.67% · α +7.41%
$14.18
settled 5mo ago

Price Chart

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Executive Summary

Six open-market share sales by Cullinan Therapeutics insiders over the past seven days, including the CEO, CMO, CSO, and Chief Legal Officer, totaling $416,256. The transactions represent modest insider selling, with all sales occurring at prices between $13.99 and $14.47 per share.

Key Financial Metrics

Direction
selling
Total Value
$416.3K
Insiders
4

Key Facts

  • CEO, CMO, CSO, and Chief Legal Officer all sold shares in open-market transactions
  • Total value of insider sales: $416,256 over 7 days
  • Sales represent approximately 0.05% of company's $839M market cap
  • All transactions were open-market sales (Form 4 code 'S')
  • No open-market purchases or grants reported in the cluster

Financial Impact

$416,256 in net insider selling over 7 days

insider sentimentshareholder confidence

Risk Factors

  • Perception of weakening confidence among top executives
  • Potential for follow-on selling by other insiders
  • Downside pressure on stock if sentiment sours

Market Snapshot

Exchange
Nasdaq

Investment Themes

Documents Analyzed

This report is based on 1 SEC document filed with EDGAR.

DocumentAccession Number
CONTEXT: Insider Cluster Data (6 trades, 7d window)cluster-CGEM-1772143544237
16 reports for CGEM
Performance horizon
100% Hit rate @ T+60 5 of 5 directional calls Went positive at some point 8 of 10 best @ T+60▲ +68.15%Jun 8, 2026
Filters
Rows
Reports for CGEM — sortable, filterable
TypeNow
Oct 1, 2026
24d ago
Press Release
BULLISH ★ 7/10
$15.51awaiting T+60—$14.54 (−6.25%)
Sep 24, 2026
4w ago
8-K
NEUTRAL ★ 5/10
$15.44awaiting T+60—$14.54 (−5.83%)
Sep 24, 2026
4w ago
Press Release
BULLISH ★ 6/10
$15.44awaiting T+60—$14.54 (−5.83%)
Sep 22, 2026
4w ago
Institutional Cluster
BULLISH ★ 4/10
$21.67awaiting T+60—$14.54 (−32.90%)
Sep 14, 2026
6w ago
8-K
BULLISH ★ 7/10
$20.40awaiting T+60—$14.54 (−28.73%)
Aug 6, 2026
11w ago
8-K
BULLISH ★ 7/10
$17.95awaiting T+60—$14.54 (−19.00%)
Jun 11, 2026
19w ago
Institutional Cluster
NEUTRAL ★ 3/10
$12.98 $21.69▲ +67.10%▲ +63.28%$14.54 (+12.02%)
Jun 10, 2026
19w ago
Press Release
NEUTRAL ★ 4/10
$12.05 $22.09▲ +83.32%▲ +77.15%$14.54 (+20.66%)
Jun 8, 2026
20w ago
8-K
BULLISH ★ 6/10
$13.28 $22.33▲ +68.15%▲ +64.64%$14.54 (+9.49%)
May 19, 2026
22w ago
Press Release
BULLISH ★ 5/10
$14.18 $19.64▲ +38.55%▲ +32.26%$14.54 (+2.57%)
Showing 10 of 16

US Market Status

Market Closed — Opens Tue (15h 55m)

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Report published Feb 26, 2026