TDG.NYSETransdigm Group INC
Form 4: TransDigm Group COO Sells Shares
Sentiment:
Insider Transaction (Form 4)
Joel Reiss, Co-Chief Operating Officer of TransDigm Group INC, sold 4,100 shares of common stock on October 15, 2026.
Summary
- Option exercise/conversion: acquired 4,100 Common Stock at $284.97 ($1,168,377) on October 15, 2026; holds 7,700 after (Direct).
- Open-market sale: disposed of 20 Common Stock at $1,112.27 ($22,245) on October 15, 2026; holds 7,680 after (Direct).
- Open-market sale: disposed of 100 Common Stock at $1,113.58 ($111,358) on October 15, 2026; holds 7,580 after (Direct).
- Open-market sale: disposed of 100 Common Stock at $1,114.82 ($111,482) on October 15, 2026; holds 7,480 after (Direct).
- Open-market sale: disposed of 50 Common Stock at $1,116.02 ($55,801) on October 15, 2026; holds 7,430 after (Direct).
- Open-market sale: disposed of 60 Common Stock at $1,117.11 ($67,027) on October 15, 2026; holds 7,370 after (Direct).
- Open-market sale: disposed of 100 Common Stock at $1,119.01 ($111,901) on October 15, 2026; holds 7,270 after (Direct).
- Open-market sale: disposed of 30 Common Stock at $1,120.30 ($33,609) on October 15, 2026; holds 7,240 after (Direct).
- Open-market sale: disposed of 60 Common Stock at $1,121.58 ($67,295) on October 15, 2026; holds 7,180 after (Direct).
- Open-market sale: disposed of 131 Common Stock at $1,123.09 ($147,124) on October 15, 2026; holds 7,049 after (Direct).
- Open-market sale: disposed of 306 Common Stock at $1,124.00 ($343,944) on October 15, 2026; holds 6,743 after (Direct).
- Open-market sale: disposed of 600 Common Stock at $1,125.00 ($675,001) on October 15, 2026; holds 6,143 after (Direct).
- Open-market sale: disposed of 278 Common Stock at $1,125.86 ($312,989) on October 15, 2026; holds 5,865 after (Direct).
- Open-market sale: disposed of 305 Common Stock at $1,127.01 ($343,739) on October 15, 2026; holds 5,560 after (Direct).
- Open-market sale: disposed of 120 Common Stock at $1,127.90 ($135,348) on October 15, 2026; holds 5,440 after (Direct).
- Open-market sale: disposed of 150 Common Stock at $1,129.38 ($169,407) on October 15, 2026; holds 5,290 after (Direct).
- Open-market sale: disposed of 100 Common Stock at $1,130.06 ($113,006) on October 15, 2026; holds 5,190 after (Direct).
- Open-market sale: disposed of 130 Common Stock at $1,131.33 ($147,072) on October 15, 2026; holds 5,060 after (Direct).
- Open-market sale: disposed of 210 Common Stock at $1,132.30 ($237,783) on October 15, 2026; holds 4,850 after (Direct).
- Open-market sale: disposed of 317 Common Stock at $1,133.89 ($359,442) on October 15, 2026; holds 4,533 after (Direct).
- Open-market sale: disposed of 495 Common Stock at $1,135.00 ($561,823) on October 15, 2026; holds 4,038 after (Direct).
- Open-market sale: disposed of 438 Common Stock at $1,135.95 ($497,548) on October 15, 2026; holds 3,600 after (Direct).
- Option exercise/conversion: disposed of 4,100 Stock Option on October 15, 2026 (Direct).
Sentiment
Score: 4
Explanation: StockSavvy.ai views this as a mildly negative but low-conviction signal: an insider sold $4,624,944 of stock under a pre-arranged Rule 10b5-1 plan, which is typically routine.
Insider Transactions
Joel Reiss — Officer (Co-Chief Operating Officer)
Transaction made under a Rule 10b5-1 trading plan.
| Date | Transaction | Security | Shares | Price | Value | Held After |
|---|---|---|---|---|---|---|
| 2026-10-15 | Option exercise/conversion | Common Stock | 4,100 | $285 | $1.2M | 7,700 |
| 2026-10-15 | Open-market sale | Common Stock | 20 | $1.1K | $22.2K | 7,680 |
| 2026-10-15 | Open-market sale | Common Stock | 100 | $1.1K | $111.4K | 7,580 |
| 2026-10-15 | Open-market sale | Common Stock | 100 | $1.1K | $111.5K | 7,480 |
| 2026-10-15 | Open-market sale | Common Stock | 50 | $1.1K | $55.8K | 7,430 |
| 2026-10-15 | Open-market sale | Common Stock | 60 | $1.1K | $67.0K | 7,370 |
| 2026-10-15 | Open-market sale | Common Stock | 100 | $1.1K | $111.9K | 7,270 |
| 2026-10-15 | Open-market sale | Common Stock | 30 | $1.1K | $33.6K | 7,240 |
| 2026-10-15 | Open-market sale | Common Stock | 60 | $1.1K | $67.3K | 7,180 |
| 2026-10-15 | Open-market sale | Common Stock | 131 | $1.1K | $147.1K | 7,049 |
| 2026-10-15 | Open-market sale | Common Stock | 306 | $1.1K | $343.9K | 6,743 |
| 2026-10-15 | Open-market sale | Common Stock | 600 | $1.1K | $675.0K | 6,143 |
| 2026-10-15 | Open-market sale | Common Stock | 278 | $1.1K | $313.0K | 5,865 |
| 2026-10-15 | Open-market sale | Common Stock | 305 | $1.1K | $343.7K | 5,560 |
| 2026-10-15 | Open-market sale | Common Stock | 120 | $1.1K | $135.3K | 5,440 |
| 2026-10-15 | Open-market sale | Common Stock | 150 | $1.1K | $169.4K | 5,290 |
| 2026-10-15 | Open-market sale | Common Stock | 100 | $1.1K | $113.0K | 5,190 |
| 2026-10-15 | Open-market sale | Common Stock | 130 | $1.1K | $147.1K | 5,060 |
| 2026-10-15 | Open-market sale | Common Stock | 210 | $1.1K | $237.8K | 4,850 |
| 2026-10-15 | Open-market sale | Common Stock | 317 | $1.1K | $359.4K | 4,533 |
| 2026-10-15 | Open-market sale | Common Stock | 495 | $1.1K | $561.8K | 4,038 |
| 2026-10-15 | Open-market sale | Common Stock | 438 | $1.1K | $497.5K | 3,600 |
| 2026-10-15 | Option exercise/conversion | Stock Option | 4,100 | — | — | 0 |
Key Dates
| Date | Description |
|---|---|
| 2026-10-15 | Option exercise/conversion (4,100 shares) |
| 2026-10-15 | Open-market sale (20 shares) |
| 2026-10-15 | Open-market sale (100 shares) |
| 2026-10-15 | Open-market sale (100 shares) |
| 2026-10-15 | Open-market sale (50 shares) |
| 2026-10-15 | Open-market sale (60 shares) |
| 2026-10-15 | Open-market sale (100 shares) |
| 2026-10-15 | Open-market sale (30 shares) |
| 2026-10-15 | Open-market sale (60 shares) |
| 2026-10-15 | Open-market sale (131 shares) |
| 2026-10-15 | Open-market sale (306 shares) |
| 2026-10-15 | Open-market sale (600 shares) |
| 2026-10-15 | Open-market sale (278 shares) |
| 2026-10-15 | Open-market sale (305 shares) |
| 2026-10-15 | Open-market sale (120 shares) |
| 2026-10-15 | Open-market sale (150 shares) |
| 2026-10-15 | Open-market sale (100 shares) |
| 2026-10-15 | Open-market sale (130 shares) |
| 2026-10-15 | Open-market sale (210 shares) |
| 2026-10-15 | Open-market sale (317 shares) |
| 2026-10-15 | Open-market sale (495 shares) |
| 2026-10-15 | Open-market sale (438 shares) |
| 2026-10-15 | Option exercise/conversion (4,100 shares) |
Keywords
insider transaction, Form 4, TDG, TransDigm Group INC, bearish, Joel Reiss
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