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IAG · GLW 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.

IAGGLW
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.
  • IAG
  • GLW
010203040202120222023202420252026
Holders and value by quarter
QuarterIAGGLW
Q3 20202 holders, $105m11 holders, $3.4bn
Q4 20202 holders, $89m18 holders, $3.6bn
Q1 20212 holders, $66m11 holders, $4.6bn
Q2 20211 holders, $60m16 holders, $4.0bn
Q3 20211 holders, $45m14 holders, $3.2bn
Q4 20211 holders, $60m16 holders, $3.1bn
Q1 20222 holders, $62m18 holders, $2.6bn
Q2 2022none listed holders, n.a.14 holders, $2.3bn
Q3 2022none listed holders, n.a.14 holders, $1.6bn
Q4 20221 holders, $44m12 holders, $1.7bn
Q1 20234 holders, $89m18 holders, $2.3bn
Q2 20234 holders, $88m10 holders, $1.9bn
Q3 20232 holders, $46m8 holders, $1.4bn
Q4 20232 holders, $51m12 holders, $1.6bn
Q1 20242 holders, $61m11 holders, $2.2bn
Q2 20245 holders, $175m11 holders, $3.3bn
Q3 20244 holders, $280m17 holders, $4.3bn
Q4 20244 holders, $261m22 holders, $4.1bn
Q1 20256 holders, $294m24 holders, $3.1bn
Q2 20255 holders, $390m25 holders, $3.3bn
Q3 202510 holders, $378m26 holders, $6.2bn
Q4 20258 holders, $818m27 holders, $7.2bn
Q1 20268 holders, $934m33 holders, $12.8bn
Q2 20268 holders, $503m26 holders, $23.6bn
IAG

Iamgold Corp

Holders
8
Reported value
$818m
Buyers
8
Sellers
20

Breadth -12 among 92 comparable managers.

Materials
GLW

Corning Inc

Holders
27
Reported value
$7.2bn
Buyers
14
Sellers
26

Breadth -12 among 92 comparable managers.

Materials

Who holds both, Q4 2025

Among the 30 tracked managers listing any of them. "Only" is about listed positions: a manager may hold the other below its listed range.

Only IAG (3)

Renaissance Technologies LLC, Voloridge Investment Management LLC, Winton Group Ltd

Only GLW (22)

Acadian Asset Management LLC, AllianceBernstein LP, Appaloosa LP, AQR Capital Management LLC, Artisan Partners LP, Brevan Howard Capital Management LP, Capital Research Global Investors, Dodge & Cox, Freestone Grove Partners LP, Holocene Advisors LP, Invesco Ltd, Jane Street Group LLC, Marshall Wace LLP, MFS Investment Management, Millennium Management LLC, Neuberger Berman Group LLC, Point72 Asset Management LP, Rokos Capital Management LLP, Schonfeld Strategic Advisors LLC, T. Rowe Price Associates Inc, Wellington Management Group LLP, Whale Rock Capital Management LLC

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.

Back to the 13F Explorer →