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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.

TDGBA
Quarter
Q2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023

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
19
Reported value
$13.4bn
Buyers
20
Sellers
22

Breadth -2 among 91 comparable managers.

IndustrialsAerospace and defence
BA

Boeing Co

Holders
31
Reported value
$26.7bn
Buyers
14
Sellers
28

Breadth -14 among 91 comparable managers.

IndustrialsAerospace and defence

Who holds both, Q1 2026

Among the 38 tracked managers listing any of them. "Only" is about listed positions: a manager may hold the other below its listed range.

Only TDG (7)

Holocene Advisors LP, Lone Pine Capital LLC, Man Group PLC, Soroban Capital Partners LP, Third Point LLC, Tudor Investment Corp, Voloridge Investment Management LLC

Only BA (19)

Acadian Asset Management LLC, AQR Capital Management LLC, Balyasny Asset Management LLC, Brevan Howard Capital Management LP, Citadel Advisors LLC, Davidson Kempner Capital Management LP, GAMCO Investors Inc, Hudson Bay Capital Management LP, Janus Henderson Group Ltd, MFS Investment Management, Millennium Management LLC, Moore Capital Management LP, Neuberger Berman Group LLC, Renaissance Technologies LLC, Schonfeld Strategic Advisors LLC, Verition Fund Management LLC, Viking Global Investors LP, Walleye Capital LLC, Wellington Management Group LLP

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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