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TDG · BA in the 13F filings

Two to four stocks side by side among the 95 tracked managers: who lists them, how that has moved, who bought and sold in a quarter, and which managers hold more than one.

Holders over time

Tracked managers listing each stock every quarter, at least, or their combined reported value. A gap is a quarter in which no tracked manager listed it. Click a quarter to compare there.
  • TDG
  • BA
010203040202120222023202420252026
Holders and value by quarter
QuarterTDGBA
Q3 202020 holders, $3.5bn20 holders, $5.1bn
Q4 202022 holders, $4.0bn26 holders, $5.8bn
Q1 202115 holders, $3.5bn26 holders, $7.7bn
Q2 202112 holders, $4.2bn25 holders, $7.7bn
Q3 202114 holders, $3.7bn22 holders, $6.5bn
Q4 202117 holders, $1.7bn19 holders, $5.7bn
Q1 202214 holders, $1.7bn23 holders, $6.2bn
Q2 202216 holders, $1.8bn22 holders, $6.1bn
Q3 202215 holders, $2.3bn17 holders, $5.5bn
Q4 202222 holders, $3.5bn24 holders, $10.9bn
Q1 202322 holders, $6.2bn29 holders, $14.1bn
Q2 202317 holders, $7.5bn31 holders, $14.6bn
Q3 202319 holders, $7.6bn32 holders, $13.5bn
Q4 202319 holders, $8.9bn31 holders, $21.1bn
Q1 202422 holders, $11.7bn21 holders, $14.9bn
Q2 202426 holders, $12.3bn20 holders, $16.7bn
Q3 202421 holders, $13.0bn20 holders, $13.9bn
Q4 202417 holders, $11.8bn31 holders, $28.0bn
Q1 202521 holders, $13.0bn30 holders, $26.5bn
Q2 202520 holders, $15.0bn32 holders, $32.3bn
Q3 202512 holders, $13.8bn33 holders, $30.6bn
Q4 202518 holders, $14.1bn34 holders, $29.2bn
Q1 202619 holders, $13.4bn31 holders, $26.7bn
Q2 202615 holders, $14.3bn25 holders, $31.0bn
TDG

Transdigm Group Inc

Holders
18
Reported value
$14.1bn
Buyers
28
Sellers
13

Breadth +15 among 92 comparable managers.

BA

Boeing Co

Holders
34
Reported value
$29.2bn
Buyers
25
Sellers
20

Breadth +5 among 92 comparable managers.

Who holds both, Q4 2025

Among the 40 tracked managers listing any of them. "Only" is about listed positions: a manager may hold the other below its listed range.

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. Buyers and sellers count comparable managers (those that filed both quarters) by shares, so a rise in value with no rise in shares is the price. Large books are listed to their largest positions. These are 95 tracked managers, not the institutional market.

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