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Great Diamond Partners’s Corning GLW Stock Holding History

Great Diamond Partners’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 		$7.41M Sell
29,004
-3,461
-11% -$630K 1.27% 19
2026
Q1 		$4.41M Buy
32,465
+16,482
+103% +$1.99M 0.85% 28
2025
Q4 		$1.4M Buy
15,983
+12,683
+384% +$1.09M 0.27% 90
2025
Q3 		$271K Buy
+3,300
New +$216K 0.05% 198
2020
Q1 		– Sell
-300
Closed -$8K – 315
2019
Q4 		$8K Buy
+300
New +$8.71K ﹤0.01% 577

Other funds holding GLW

Sumitomo Mitsui Trust Group
Sumitomo Mitsui Trust Group Minato-Ku, Tokyo, Japan $175B AUM 40.63% 1-Year Est. Return
CPC
Cookson Peirce & Co Pittsburgh, Pennsylvania $3.04B AUM 94.11% 1-Year Est. Return
New York State Common Retirement Fund
New York State Common Retirement Fund Albany, New York $79.3B AUM 43.63% 1-Year Est. Return
CFB
Cullen/Frost Bankers San Antonio, Texas $10.1B AUM 29.18% 1-Year Est. Return
WHRC
W.H. Reaves & Co Jersey City, New Jersey $6.59B AUM 31.9% 1-Year Est. Return
CAM
Cacti Asset Management Atlanta, Georgia $1.99B AUM 86.33% 1-Year Est. Return
Aberdeen Group
Aberdeen Group Edinburgh, United Kingdom $71.2B AUM 41.74% 1-Year Est. Return
OIAM
OFI Invest Asset Management Paris, France $10B AUM 48.47% 1-Year Est. Return
Wealth Enhancement Advisory Services
Wealth Enhancement Advisory Services Plymouth, Minnesota $59.8B AUM 29.42% 1-Year Est. Return
Assenagon Asset Management
Assenagon Asset Management Senningerberg, Luxembourg $80.2B AUM 50.57% 1-Year Est. Return

Great Diamond Partners's GLW Position: Q2 2026 in Review

Great Diamond Partners reduced its Corning (GLW) stake by 11% in Q2 2026, selling an estimated $630K and leaving 29,004 shares worth $7.41M. The position accounts for 1.27% of the portfolio, ranked #19.

Great Diamond Partners first reported a position in GLW in Q4 2019 and has held it in 5 quarters since. 1,236 funds tracked by Wall St. Rank hold GLW as of Q2 2026.

  • Great Diamond Partners held 29,004 shares of Corning worth $7.41M as of Q2 2026.
  • Great Diamond Partners sold 3,461 Corning shares in Q2 2026, an estimated $630K.
  • Corning made up 1.27% of Great Diamond Partners's portfolio in Q2 2026, its #19 holding.
  • Great Diamond Partners first reported a position in Corning in Q4 2019 and has held it in 5 quarters since.
  • 1,236 funds tracked by Wall St. Rank held Corning as of Q2 2026.

Based on Great Diamond Partners's 13F filing for Q2 2026, filed 17 Jul 2026.