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WLK · 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.

WLKGLW
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.
  • WLK
  • GLW
010203040202120222023202420252026
Holders and value by quarter
QuarterWLKGLW
Q3 20205 holders, $794m11 holders, $3.4bn
Q4 20208 holders, $996m18 holders, $3.6bn
Q1 202110 holders, $794m11 holders, $4.6bn
Q2 20217 holders, $325m16 holders, $4.0bn
Q3 202112 holders, $344m14 holders, $3.2bn
Q4 202111 holders, $315m16 holders, $3.1bn
Q1 20228 holders, $416m18 holders, $2.6bn
Q2 202210 holders, $373m14 holders, $2.3bn
Q3 202211 holders, $401m14 holders, $1.6bn
Q4 20228 holders, $681m12 holders, $1.7bn
Q1 20238 holders, $935m18 holders, $2.3bn
Q2 20237 holders, $709m10 holders, $1.9bn
Q3 20238 holders, $858m8 holders, $1.4bn
Q4 20239 holders, $963m12 holders, $1.6bn
Q1 20248 holders, $965m11 holders, $2.2bn
Q2 20247 holders, $832m11 holders, $3.3bn
Q3 20248 holders, $306m17 holders, $4.3bn
Q4 202410 holders, $430m22 holders, $4.1bn
Q1 202511 holders, $442m24 holders, $3.1bn
Q2 20257 holders, $252m25 holders, $3.3bn
Q3 20257 holders, $165m26 holders, $6.2bn
Q4 20259 holders, $654m27 holders, $7.2bn
Q1 202610 holders, $1.2bn33 holders, $12.8bn
Q2 20267 holders, $318m26 holders, $23.6bn
WLK

Westlake Corporation

Holders
11
Reported value
$442m
Buyers
10
Sellers
1

Breadth +9 among 95 comparable managers.

Materials
GLW

Corning Inc

Holders
24
Reported value
$3.1bn
Buyers
17
Sellers
9

Breadth +8 among 95 comparable managers.

Materials

Who holds both, Q1 2025

Among the 31 tracked managers listing any of them. "Only" is about listed positions: a manager may hold the other below its listed range.

Only WLK (7)

Capital World Investors, First Eagle Investment Management LLC, Holocene Advisors LP, Janus Henderson Group Ltd, Two Sigma Advisers LP, Two Sigma Investments LP, Voloridge Investment Management LLC

Only GLW (20)

Acadian Asset Management LLC, Appaloosa LP, D. E. Shaw & Co., Dodge & Cox, GAMCO Investors Inc, Invesco Ltd, Marshall Wace LLP, MFS Investment Management, Neuberger Berman Group LLC, PDT Partners LLC, Point72 Asset Management LP, Quantbot Technologies LP, Schonfeld Strategic Advisors LLC, Soros Fund Management LLC, Squarepoint Ops LLC, T. Rowe Price Associates Inc, Tudor Investment Corp, Verition Fund Management LLC, 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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