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TDG in the 13F filings

Transdigm Group Inc · CUSIP 893641100

Sector · IndustrialsTheme · Aerospace and defence
Quarter
Q3 2026 · early filersQ2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023
Quarter end
31 Mar 2026
the date the book describes
Filed
27 Oct 2026
latest of these filings; the earliest 12 May 2026
Managers listing it
37
at least, of 95 tracked, among listed positions
Comparable managers
91
filed both Q4 2025 and Q1 2026; 15 listed it in both
Shares listed
11,763,870
combined, among listed positions
Reported value
$13.6bn
combined, at the quarter end

AllianceBernstein LP. Values in this filing are at the previous quarter end's prices; its share count is the quarter end's.

Among the 91 comparable managers: 20 buyers (opened or added shares) and 22 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was +992,935.

Managers listing TDG in Q1 2026

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q4 2025, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

37 of 37 holders

ActionFiling
Capital World Investors4,666,491$5.4bn0.74%Added+711,97913 May 2026 (the filing on sec.gov)
Capital Research Global Investors3,143,509$3.6bn0.57%Added+666,84813 May 2026 (the filing on sec.gov)
Fidelity (FMR LLC)1,358,539$1.6bn0.08%Trimmed-260,75415 May 2026 (the filing on sec.gov)
Soroban Capital Partners LP856,197$992m1.92%Added+108,22715 May 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc592,695$687m0.08%Trimmed-153,86415 May 2026 (the filing on sec.gov)
Invesco Ltd434,591$504munder 0.1%Added+6,62312 May 2026 (the filing on sec.gov)
Citadel Advisors LLC90,274$105munder 0.1%Trimmed-78,74415 May 2026 (the filing on sec.gov)
Squarepoint Ops LLC79,548$92m0.11%Added+32,90715 May 2026 (the filing on sec.gov)
AllianceBernstein LP55,849$74munder 0.1%Trimmed-88215 May 2026 (the filing on sec.gov)
Tudor Investment Corp55,940$65m0.12%Added+53,42815 May 2026 (the filing on sec.gov)
Man Group PLC53,686$62m0.11%Added+39,68415 May 2026 (the filing on sec.gov)
Marshall Wace LLP52,191$60m0.06%Added+5,60615 May 2026 (the filing on sec.gov)
Voloridge Investment Management LLC44,692$52m0.21%Added+41,69015 May 2026 (the filing on sec.gov)
Point72 Asset Management LP42,312$49m0.06%Trimmed-210,46915 May 2026 (the filing on sec.gov)
Lone Pine Capital LLC35,677$41m0.33%Added+16,44915 May 2026 (the filing on sec.gov)
Woodline Partners LP32,100$37m0.14%Added+29,34615 May 2026 (the filing on sec.gov)
Third Point LLC25,000$29m1.39%Newnew15 May 2026 (the filing on sec.gov)
Holocene Advisors LP24,094$28m0.07%Trimmed-32,12715 May 2026 (the filing on sec.gov)
Neuberger Berman Group LLC23,364$27munder 0.1%Trimmed-5,32727 Oct 2026 (the filing on sec.gov)
D. E. Shaw & Co.21,516$25munder 0.1%Trimmed-1,51215 May 2026 (the filing on sec.gov)
Renaissance Technologies LLC19,780$23munder 0.1%Newnew14 May 2026 (the filing on sec.gov)
AQR Capital Management LLC17,608$20munder 0.1%Added+2,54715 May 2026 (the filing on sec.gov)
Susquehanna International Group LLP8,803$10munder 0.1%Trimmed-1,41615 May 2026 (the filing on sec.gov)
Janus Henderson Group Ltd7,901$9.2munder 0.1%Added+89518 May 2026 (the filing on sec.gov)
Winton Group Ltd7,165$8.3m0.29%Newnew12 May 2026 (the filing on sec.gov)
Page 1 of 2

Largest increases and reductions, by shares

Q4 2025 to Q1 2026, among managers that listed it in both quarters or opened it.

Increases

Reductions

New positions and exits

At least these many: a manager is shown exiting only where its own filing shows the position gone.

New (5)

Exited (5)

Ownership over time

Every quarter on file. A quarter-end value moves with the price as well as with the shares held; buyers and sellers count comparable managers, by shares.
21 in Q3 2024 to 15 in Q2 2026

Tracked managers listing it, at least.

01020302014201620182020202220242026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
TDG by quarter
QuarterHoldersReported valueBuyersSellers
Q2 201315$1.0bnn.a.n.a.
Q3 201314$1.5bnn.a.n.a.
Q4 201312$2.0bnn.a.n.a.
Q1 201415$2.4bnn.a.n.a.
Q2 201411$2.2bnn.a.n.a.
Q3 201412$2.6bnn.a.n.a.
Q4 201412$2.9bnn.a.n.a.
Q1 201515$3.4bnn.a.n.a.
Q2 201515$3.4bnn.a.n.a.
Q3 201513$3.2bnn.a.n.a.
Q4 201514$3.1bnn.a.n.a.
Q1 201612$2.7bnn.a.n.a.
Q2 201613$3.1bnn.a.n.a.
Q3 201612$3.6bnn.a.n.a.
Q4 201613$2.9bnn.a.n.a.
Q1 201710$2.6bnn.a.n.a.
Q2 20179$3.7bnn.a.n.a.
Q3 20178$3.1bnn.a.n.a.
Q4 201710$3.3bnn.a.n.a.
Q1 201811$4.3bnn.a.n.a.
Q2 201811$4.9bnn.a.n.a.
Q3 201816$3.9bnn.a.n.a.
Q4 201812$3.7bnn.a.n.a.
Q1 201913$5.2bnn.a.n.a.
Q2 201916$5.8bnn.a.n.a.
Q3 201918$6.7bnn.a.n.a.
Q4 201915$7.5bnn.a.n.a.
Q1 202016$3.3bnn.a.n.a.
Q2 202014$4.1bnn.a.n.a.
Q3 202020$3.5bnn.a.n.a.
Q4 202022$4.0bnn.a.n.a.
Q1 202115$3.5bnn.a.n.a.
Q2 202112$4.2bnn.a.n.a.
Q3 202114$3.7bnn.a.n.a.
Q4 202117$1.7bnn.a.n.a.
Q1 202214$1.7bnn.a.n.a.
Q2 202216$1.8bnn.a.n.a.
Q3 202215$2.3bnn.a.n.a.
Q4 202222$3.5bnn.a.n.a.
Q1 202322$6.2bnn.a.n.a.
Q2 202317$7.5bnn.a.n.a.
Q3 202319$7.6bnn.a.n.a.
Q4 202319$8.9bn1310
Q1 202422$11.7bn156
Q2 202426$12.3bn1712
Q3 202421$13.0bn1211
Q4 202417$11.8bn712
Q1 202521$13.0bn912
Q2 202520$15.0bn137
Q3 202512$13.8bn69
Q4 202518$14.1bn2813
Q1 202619$13.4bn2022
Q2 202615$14.3bn2318

Compare with…

Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.

TDG and RTX →TDG and BA →TDG and NOC →Choose a stock to compare with TDG →

How much of the picture this is

A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.

Which funds own TDG, latest filings →Back to the 13F Explorer →