Insider Cluster (1 insider) ·Filed Mar 16, 2026

TDG

TransDigm Group INC
NEUTRAL
Impact 4/10
Horizondays Processed6mo ago
Insider cluster: 2 insiders, $268K total
Actionable Insight • Neutral

The open-market sale is modest relative to company size and likely related to tax or diversification planning following a large option exercise. Monitor for additional selling from insiders; no immediate red flag, but watch for pattern changes.

DirectionNeutral
Confidencehigh
Horizondays
Final — all horizons settled through T+60d
TDG ▼ -3.32% at T+60d
NEUTRAL call ✗ call lost -3.32% · α vs SPY -13.81% · entry $1,247.73 → $1,206.28
Entry anchored
Mar 13, 03:59 PM ET
via exchange tick
T+1d
-1.50%
call -1.50% · α -1.77%
$1,229.06
settled 7mo ago
T+5d
-7.96%
call -7.96% · α -5.92%
$1,148.39
settled 7mo ago
T+20d
+3.60%
call +3.60% · α -0.18%
$1,292.61
settled 6mo ago
T+60d
-3.32%
call -3.32% · α -13.81%
$1,206.28
settled 4mo ago

Price Chart

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Executive Summary

Director Howley W Nicholas engaged in a series of transactions including a large derivative exercise and an open-market sale of shares, alongside a routine stock award. The total value of economic activity exceeds $750K, driven primarily by the derivative exercise and sale.

Key Financial Metrics

Direction
selling
Total Value
$243.5K
Insiders
1

Key Facts

  • Howley W Nicholas (Director) sold 202 shares in the open market for $243,494 on 2026-03-18
  • Same insider exercised options for 20,264 shares (two tranches of 10,132) with a total cashless exercise value of $515,921 and a cost basis of $50.92 per share
  • Received 113 shares via grant on 2026-03-20 valued at $137,257
  • All transactions occurred within a 7-day window, totaling over $750K in economic value, but primarily consisting of non-cash derivative exercises

Financial Impact

$756,671 total transaction value over 7 days, including $243,494 in open-market sales and $515,921 from option exercises. Less than 0.0012% of $66.5B market cap.

insider ownershipshare count (dilution potential)insider selling

Risk Factors

  • Perception of insider profit-taking after a large option realization
  • Potential for follow-on selling if other insiders exercise options

Market Snapshot

Exchange
NYSE

Investment Themes

Industrials & Manufacturing

Documents Analyzed

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

DocumentAccession Number
CONTEXT: Insider Cluster Data (4 trades, 7d window)cluster-TDG-1774296619545
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 7m)

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Report published Mar 23, 2026