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ROCKWOOD RESEARCH · A CORPORATE FILINGS WEBSITE|STRAIGHT FROM THE SOURCE · SEC EDGAR|SPONSOREDYour message on this tape — bid on the Rockwood Ad Exchange · Rockwood Ad Exchange|
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TDG

TransDigm Group INC

Aircraft Parts & Auxiliary Equipment, NEC · SIC 3728CIK 1260221Held by 20 tracked managersEDGAR filings ↗10-K/10-Q ↗

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i
20 managers · Q2 2026 13F
27.5%
(3.7%)
12.7%
—
12.0%
—
8.5%
+4.9%
6.9%
(7.5%)
Praesidium Investment Management Company
Praesidium Investment Management CompanyPosition history →
5.0%
(74.3%)
3.3%
+3.0%
2.5%
+636.8%
2.3%
+216.0%
2.2%
—
0.67%
(8.4%)
0.58%
(0.8%)
0.44%
(5.0%)
0.23%
(20.0%)
0.20%
(14.8%)
0.15%
+104.2%
0.09%
(1.4%)
0.05%
+29.5%
0.01%
(20.1%)
<0.01%
NEW

Weight = position value ÷ the manager's total 13F long-equity value in the same filing — one definition for every row. “1st obs.” marks a position with no earlier stored 13F to compare against — it is not shown as a purchase.