GLW

Corning Inc

6 super-investor ownerscombined $824Mlargest position 4.3%

1 TRIM

6 of the 83 super-investors we track hold GLW, worth a combined $824M per their latest 13F filings. The largest position: Stephen Mandel at 4.3% of their portfolio. This quarter the cohort logged 0 buys and 1 sell on the name. Conviction score: 31 of 100 (how strongly the cohort backs it) — ranked #327 of 742 stocks. The stock is up 9.6x since a tracked investor first held it at conviction size (Q1 2014 or earlier). Conviction easing: 2 fewer super-investors hold it than in 2026Q1.

Held through it: Robert Olstein (49q straight), Mairs & Power Funds (49q straight), Dodge & Cox Funds (49q straight) and 6 more. All multibaggers the cohort held →

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Why super-investors own GLW

GLW is held by 6 super-investors in our cohort, with a combined position value of $824M. The highest-conviction owner is Stephen Mandel at 4.3% of their portfolio. This quarter the cohort registered 1 trimmed.

AI-synthesized from 13F filings. Not investment advice.

Cohort owners over time

2016Q3 → 2026Q2

How many of the cohort members held this stock each quarter.

Now: 5

Peak: 7

Owners (6) · click any column to sort

#↑	Manager	% Port.	History	Value	Shares
1	Stephen Mandel	4.3%	2q	$697M	2,728,058
2	Joel Greenblatt	0.1%	37q	$94M	368,501
3	Mairs & Power Funds	0.2%	40q	$22M	85,447
4	Dodge & Cox Funds	<0.1%	40q	$9M	34,665
5	Lee Ainslie	<0.1%	15q	$1M	4,774
6	Robert Olstein	0.1%	40q	$680K	5,000