No actionable signal. The sales are de minimis and likely tied to tax withholding or exercise costs from the larger derivative exercises. Monitor for any C-suite cluster selling above 0.1% of market cap, which would be a more meaningful signal.
Price Chart
Executive Summary
Two TransDigm insiders, including Co-COO Joel Reiss and Director W. Nicholas Howley, executed open-market sales totaling $127K in the past week. The sales are trivial relative to TDG's $66.1B market cap (0.0002%), and both insiders also exercised large derivative positions (non-cash) on the same dates, suggesting the sales are liquidity-driven to cover taxes or exercise costs rather than a bearish signal. The cluster is routine and non-informative.
Key Financial Metrics
Key Facts
- Total open-market sales: $127K (40 shares by Director Howley at $1,145.16; 71 shares by Co-COO Reiss at $1,144.43)
- Both insiders simultaneously exercised large derivative positions: Howley exercised 10,132 shares (value $673K) and Reiss exercised 3,900 shares (value $1.1M) — non-cash transactions
- Sales represent 0.0002% of TDG's $66.1B market cap — far below the 0.1% materiality threshold
- No C-suite CEO or CFO selling; Co-COO Reiss sold only 71 shares alongside a much larger derivative exercise
- Historical calibration shows prior bullish calls on TDG have underperformed (avg T+20 P&L -2.44%, 33% win rate), but this neutral read is consistent with the trivial dollar amounts
Financial Impact
Total insider sales of $127K, or 0.0002% of market cap — economically negligible
Risk Factors
- No material risk identified from this cluster
- Historical model performance on TDG shows poor directional accuracy (33% win rate at T+20) — but this neutral read is not affected by that bias
Market Snapshot
Investment Themes
Documents Analyzed
This report is based on 1 SEC document filed with EDGAR.
| Document | Accession Number |
|---|---|
| CLUSTER Data (Synthetic) | cluster-TDG-1779221699108 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Sep 14, 2026 18d ago | 8-K | $1,111.22 $1,109.65 | ▼ −0.14% | ▼ −0.25% | $1,090.38 (−1.88%) |
Sep 14, 2026 18d ago | 8-K | $1,111.22 $1,109.65 | ▼ −0.14% | ▼ −0.25% | $1,090.38 (−1.88%) |
Aug 19, 2026 6w ago | Insider Cluster | $1,222.91 $1,207.06 | ▼ −1.30% | ▼ −0.91% | $1,090.38 (−10.84%) |
Aug 4, 2026 8w ago | 8-K | $1,275.05 $1,242.04 | ▼ −2.59% | ▼ −2.49% | $1,090.38 (−14.48%) |
Aug 4, 2026 8w ago | Press Release | $1,275.05 $1,242.04 | ▼ −2.59% | ▼ −2.49% | $1,090.38 (−14.48%) |
Jul 27, 2026 9w ago | 8-K | $1,286.27 $1,254.38 | ▼ −2.48% | ▼ −3.55% | $1,090.38 (−15.23%) |
Jul 27, 2026 9w ago | Press Release | $1,286.27 $1,254.38 | ▼ −2.48% | ▼ −3.55% | $1,090.38 (−15.23%) |
Jul 24, 2026 10w ago | Press Release | $1,286.27 $1,254.38 | ▼ −2.48% | ▼ −3.55% | $1,090.38 (−15.23%) |
Jul 24, 2026 10w ago | 8-K | $1,236.71 $1,249.91 | ▲ +1.07% | ▲ +0.69% | $1,090.38 (−11.83%) |
Jul 21, 2026 10w ago | Insider Cluster | $1,205.49 $1,286.27 | ▲ +6.70% | ▲ +7.93% | $1,090.38 (−9.55%) |
US Market Status
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