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HBM · 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.

HBMGLW
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.
  • HBM
  • GLW
010203040202120222023202420252026
Holders and value by quarter
QuarterHBMGLW
Q3 20202 holders, $9.9m11 holders, $3.4bn
Q4 20204 holders, $114m18 holders, $3.6bn
Q1 20213 holders, $109m11 holders, $4.6bn
Q2 20212 holders, $55m16 holders, $4.0bn
Q3 2021none listed holders, n.a.14 holders, $3.2bn
Q4 2021none listed holders, n.a.16 holders, $3.1bn
Q1 20221 holders, $736k18 holders, $2.6bn
Q2 2022none listed holders, n.a.14 holders, $2.3bn
Q3 20221 holders, $347k14 holders, $1.6bn
Q4 20224 holders, $27m12 holders, $1.7bn
Q1 20234 holders, $42m18 holders, $2.3bn
Q2 20234 holders, $42m10 holders, $1.9bn
Q3 20235 holders, $23m8 holders, $1.4bn
Q4 20233 holders, $9.4m12 holders, $1.6bn
Q1 20244 holders, $16m11 holders, $2.2bn
Q2 20249 holders, $104m11 holders, $3.3bn
Q3 20246 holders, $61m17 holders, $4.3bn
Q4 20247 holders, $106m22 holders, $4.1bn
Q1 20255 holders, $67m24 holders, $3.1bn
Q2 202510 holders, $177m25 holders, $3.3bn
Q3 20258 holders, $387m26 holders, $6.2bn
Q4 20258 holders, $536m27 holders, $7.2bn
Q1 202612 holders, $641m33 holders, $12.8bn
Q2 20266 holders, $411m26 holders, $23.6bn
HBM

Hudbay Minerals Inc

Holders
4
Reported value
$16m
Buyers
2
Sellers
2

Breadth 0 among 93 comparable managers.

Materials
GLW

Corning Inc

Holders
11
Reported value
$2.2bn
Buyers
6
Sellers
6

Breadth 0 among 93 comparable managers.

Materials

Who holds both, Q1 2024

Among the 15 tracked managers listing any of them. "Only" is about listed positions: a manager may hold the other below its listed range.

Both (0)

No tracked manager lists every one of them.

Only HBM (4)

Bridgewater Associates LP, Maverick Capital Ltd, Quantbot Technologies LP, Verition Fund Management LLC

Only GLW (11)

Dodge & Cox, GAMCO Investors Inc, Holocene Advisors LP, Invesco Ltd, MFS Investment Management, Neuberger Berman Group LLC, Point72 Asset Management LP, Squarepoint Ops LLC, T. Rowe Price Associates Inc, Wellington Management Group LLP, Woodline Partners LP

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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