TransDigm Group Incorporated (TDG) Insider Trading
Over the last 3 months, TDG insiders made 0 open-market buys and 116 sales, a net sale of -$51.0M (SEC Form 4). Over the last 6 months, 843 institutions increased and 798 reduced their position (13F).
Insider Activity
Sentiment
0/100
Buys (3m)
0
Sells (3m)
116
Net (3m)
-$51.0M
Insider trades by month Buys Sells
Feb
Mar
Apr
May
Context3-month price -7.9%Institutions mixed (13F)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| May 19, 2026 | Howley W Nicholasdirector | Sell | 3,801 | $1188.13 |
| May 19, 2026 | Howley W Nicholasdirector | Sell | 313 | $1175.96 |
| May 19, 2026 | Howley W Nicholasdirector | Sell | 40 | $1145.16 |
| May 19, 2026 | Howley W Nicholasdirector | Sell | 60 | $1146.42 |
| May 19, 2026 | Howley W Nicholasdirector | Sell | 110 | $1165.51 |
| May 19, 2026 | Howley W Nicholasdirector | Sell | 685 | $1174.17 |
| May 19, 2026 | Howley W Nicholasdirector | Sell | 448 | $1185.97 |
| May 19, 2026 | Howley W Nicholasdirector | Sell | 80 | $1150.17 |
| May 19, 2026 | Howley W Nicholasdirector | Sell | 50 | $1162.94 |
| May 19, 2026 | Howley W Nicholasdirector | Sell | 220 | $1172.31 |
| May 19, 2026 | Howley W Nicholasdirector | Sell | 463 | $1168.33 |
| May 19, 2026 | Howley W Nicholasdirector | Sell | 250 | $1179.67 |
| May 19, 2026 | Howley W Nicholasdirector | Sell | 272 | $1187.11 |
| May 19, 2026 | Howley W Nicholasdirector | Sell | 290 | $1182.81 |
| May 19, 2026 | Howley W Nicholasdirector | Sell | 390 | $1169.24 |
| May 19, 2026 | Howley W Nicholasdirector | Sell | 87 | $1183.86 |
| May 19, 2026 | Howley W Nicholasdirector | Sell | 140 | $1178.14 |
| May 19, 2026 | Howley W Nicholasdirector | Sell | 437 | $1180.97 |
| May 19, 2026 | Howley W Nicholasdirector | Sell | 23 | $1163.98 |
| May 19, 2026 | Howley W Nicholasdirector | Sell | 1,075 | $1185.05 |
| May 19, 2026 | Howley W Nicholasdirector | Sell | 586 | $1167.05 |
| May 19, 2026 | Howley W Nicholasdirector | Sell | 132 | $1189.02 |
| May 19, 2026 | Howley W Nicholasdirector | Option | 10,132 | $66.47 |
| May 18, 2026 | Reiss Joelofficer: Co-Chief Operating Officer | Sell | 119 | $1150.33 |
| May 18, 2026 | Reiss Joelofficer: Co-Chief Operating Officer | Sell | 151 | $1151.49 |
| May 18, 2026 | Reiss Joelofficer: Co-Chief Operating Officer | Option | 3,900 | $284.97 |
| May 18, 2026 | Reiss Joelofficer: Co-Chief Operating Officer | Sell | 45 | $1158.62 |
| May 18, 2026 | Reiss Joelofficer: Co-Chief Operating Officer | Sell | 95 | $1159.69 |
| May 18, 2026 | Reiss Joelofficer: Co-Chief Operating Officer | Sell | 121 | $1167.02 |
| May 18, 2026 | Reiss Joelofficer: Co-Chief Operating Officer | Sell | 120 | $1146.17 |
Source: TDG SEC Form 4 filings, latest May 19, 2026. For informational purposes only — not investment advice.
Institutional activity (13F)
How institutions changed their TDG positions over the last 6 months (SEC Form 13F).
Increased
843
New positions
262
Reduced
798
Sold out
228
Largest moves
| Institution | Action | Shares | Filed |
|---|---|---|---|
| VANGUARD GROUP INC | Reduced | 6.8M | Jan 29, 2026 |
| CAPITAL INTERNATIONAL INVESTORS | Increased | 6.5M | Feb 11, 2026 |
| CAPITAL INTERNATIONAL INVESTORS | Reduced | 5.5M | May 13, 2026 |
| CAPITAL WORLD INVESTORS | Increased | 4.7M | May 13, 2026 |
| BLACKROCK, INC. | Increased | 4.6M | May 13, 2026 |
| BLACKROCK, INC. | Increased | 4.3M | Feb 12, 2026 |
| CAPITAL WORLD INVESTORS | Increased | 4.0M | Feb 11, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 3.7M | May 15, 2026 |
| CAPITAL RESEARCH GLOBAL INVESTORS | Increased | 3.1M | May 13, 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC | New Position | 2.6M | May 8, 2026 |
| STATE STREET CORP | Increased | 2.5M | May 15, 2026 |
| CAPITAL RESEARCH GLOBAL INVESTORS | Increased | 2.5M | Feb 11, 2026 |
| STATE STREET CORP | Increased | 2.5M | Feb 13, 2026 |
| PRINCIPAL FINANCIAL GROUP INC | Reduced | 2.2M | Feb 2, 2026 |
| PRINCIPAL FINANCIAL GROUP INC | Reduced | 2.0M | May 4, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.