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Mariner Investment Group’s Corning GLW Stock Holding History

Mariner Investment Group’s Portfolio GLW Stock Details GLW Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		– Sell
-30,000
Closed -$209K – 137
2026
Q1 		$209K Sell
30,000
-170,000
-85% -$20.5M 0.06% 67
2025
Q4 		$738K Hold
200,000
– – 0.04% 53
2025
Q3 		$805K Buy
+200,000
New +$13.1M 0.24% 32
2014
Q1 		– Sell
-15,000
Closed -$28K – 266
2013
Q4 		$28K Buy
+15,000
New +$247K ﹤0.01% 293

Other funds holding GLW

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return
Capital Research Global Investors
Capital Research Global Investors Los Angeles, California $717B AUM 35.42% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Bank of America
Bank of America Charlotte, North Carolina $1.55T AUM 33.47% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

Mariner Investment Group's GLW Position: Q2 2026 in Review

Mariner Investment Group opened a new position in Corning (GLW) in Q2 2026: 14,000 shares worth $3.58M. The stake represents 0.77% of the portfolio and ranks #19 among its holdings. This is a return to the name: Mariner Investment Group previously reported a position in GLW as recently as Q2 2025.

Mariner Investment Group first reported a position in GLW in Q3 2024 and has held it in 5 quarters since. The position peaked at $4.21M in Q2 2025. 2,674 funds tracked by Wall St. Rank hold GLW as of Q2 2026.

  • Mariner Investment Group held 14,000 shares of Corning worth $3.58M as of Q2 2026.
  • Corning was a new Mariner Investment Group position in Q2 2026.
  • Corning made up 0.77% of Mariner Investment Group's portfolio in Q2 2026, its #19 holding.
  • Mariner Investment Group first reported a position in Corning in Q3 2024 and has held it in 5 quarters since.
  • Mariner Investment Group's Corning position peaked at $4.21M in Q2 2025.
  • 2,674 funds tracked by Wall St. Rank held Corning as of Q2 2026.

Based on Mariner Investment Group's 13F filing for Q2 2026, filed 27 Jul 2026.