Insider Cluster (2 insiders) ·Filed Jul 21, 2026

TDG

TransDigm Group INC
NEUTRAL
Impact 3/10
Horizondays Processed2mo ago
Insider cluster: 2 insiders, $800K total
Actionable Insight • Neutral

The insider selling is routine and proportional to option exercises — no bearish signal. Monitor for any upcoming earnings or material events that could trigger further insider activity, but this cluster alone does not warrant action.

DirectionNeutral
Confidencehigh
Horizondays
Latest settled — T+20d
TDG ▲ +2.35% at T+20d
NEUTRAL call ✓ call won +2.35% · α vs SPY -0.22% · entry $1,205.49 → $1,233.78
Next anchor: T+60d in 11d
Latest observation: T+50 -4.42% FF3 residual α
Entry anchored
Jul 20, 03:59 PM ET
via exchange tick
T+1d
-0.90%
call -0.90% · α -0.78%
$1,194.70
settled 2mo ago
T+5d
+6.70%
call +6.70% · α +7.93%
$1,286.27
settled 2mo ago
T+20d
+2.35%
call +2.35% · α -0.22%
$1,233.78
settled 7w ago
T+60d
—
call — · α —
—
in 11d

Price Chart

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Executive Summary

Director Howley W Nicholas executed a large derivative exercise and sold a significant block of TDG shares totaling ~$12.3M in open-market sales on July 20, 2026. Co-COO Joel Reiss also sold $111K worth of shares on July 15. While the dollar amount is notable, it represents only ~0.018% of TDG's $67.4B market cap, making it trivial relative to company size. The sales are likely liquidity-driven following option exercises, not a bearish signal on the company's fundamentals.

Key Financial Metrics

Direction
selling
Total Value
$12.4M
Insiders
2

Key Facts

  • Director Howley W Nicholas sold ~$12.3M in open-market sales on July 20, 2026, following derivative exercises of 10,132 shares at $66.47 and 10,132 shares at $0.
  • Co-COO Joel Reiss sold 90 shares for $111K on July 15, 2026.
  • Total insider selling of ~$12.4M represents only ~0.018% of TDG's $67.4B market cap.
  • The cluster is dominated by one director's sales, which are tied to option exercises and appear liquidity-driven.
  • Historical calibration shows prior neutral reports on TDG with similar scores had mixed outcomes (44% win rate at T+20).

Financial Impact

Total insider sales of ~$12.4M, or ~0.018% of market cap — trivial relative to company size.

insider ownership

Risk Factors

  • Director selling could be misinterpreted as bearish by retail investors.
  • No material risk to fundamentals from this cluster.

Market Snapshot

Exchange
NYSE
Sector
Aircraft Parts & Auxiliary Equipment, NEC
Analyst Consensus
59% bullish (27 analysts)

Investment Themes

Industrials & Manufacturing

Documents Analyzed

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

DocumentAccession Number
CLUSTER Data (Synthetic)cluster-TDG-1784700187821
18 reports for TDG
Performance horizon
67% Hit rate 4 of 6 directional calls best @ T+60▲ +12.24%Apr 7, 2026
Filters
Rows
Reports for TDG — sortable, filterable
TypeNow
Sep 14, 2026
18d ago
8-K
NEUTRAL ★ 3/10
$1,111.22 $1,109.65▼ −0.14%▼ −0.25%$1,090.38 (−1.88%)
Sep 14, 2026
18d ago
8-K
NEUTRAL ★ 4/10
$1,111.22 $1,109.65▼ −0.14%▼ −0.25%$1,090.38 (−1.88%)
Aug 19, 2026
6w ago
Insider Cluster
NEUTRAL ★ 2/10
$1,222.91 $1,207.06▼ −1.30%▼ −0.91%$1,090.38 (−10.84%)
Aug 4, 2026
8w ago
8-K
BULLISH ★ 6/10
$1,275.05 $1,242.04▼ −2.59%▼ −2.49%$1,090.38 (−14.48%)
Aug 4, 2026
8w ago
Press Release
BULLISH ★ 7/10
$1,275.05 $1,242.04▼ −2.59%▼ −2.49%$1,090.38 (−14.48%)
Jul 27, 2026
9w ago
8-K
BULLISH ★ 5/10
$1,286.27 $1,254.38▼ −2.48%▼ −3.55%$1,090.38 (−15.23%)
Jul 27, 2026
9w ago
Press Release
NEUTRAL ★ 4/10
$1,286.27 $1,254.38▼ −2.48%▼ −3.55%$1,090.38 (−15.23%)
Jul 24, 2026
10w ago
Press Release
NEUTRAL ★ 2/10
$1,286.27 $1,254.38▼ −2.48%▼ −3.55%$1,090.38 (−15.23%)
Jul 24, 2026
10w ago
8-K
NEUTRAL ★ 2/10
$1,236.71 $1,249.91▲ +1.07%▲ +0.69%$1,090.38 (−11.83%)
Jul 21, 2026
10w ago
Insider Cluster
NEUTRAL ★ 3/10
$1,205.49 $1,286.27▲ +6.70%▲ +7.93%$1,090.38 (−9.55%)
Showing 10 of 18

US Market Status

Market Closed — Opens Mon (65h 1m)

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Report published Jul 22, 2026