Great Diamond Partners
GLW icon

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
Q3 		$3.94M Sell
25,633
-3,371
-12% -$536K 0.66% 38
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

Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.92T AUM 36.1% 1-Year Est. Return
Bank of New York Mellon
Bank of New York Mellon New York $608B AUM 32.77% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $551B AUM 33.95% 1-Year Est. Return
Amundi
Amundi Paris, France $496B AUM 35.36% 1-Year Est. Return
Deutsche Bank
Deutsche Bank Frankfurt Am Main Ge, Germany $362B AUM 34.89% 1-Year Est. Return
Barclays
Barclays London, United Kingdom $500B AUM 36.84% 1-Year Est. Return
Mitsubishi UFJ Asset Management
Mitsubishi UFJ Asset Management Tokyo, Japan $194B AUM 32.2% 1-Year Est. Return
Citigroup
Citigroup New York $308B AUM 40.94% 1-Year Est. Return
LPL Financial
LPL Financial San Diego, California $468B AUM 17.69% 1-Year Est. Return
Sumitomo Mitsui Trust Group
Sumitomo Mitsui Trust Group Minato-Ku, Tokyo, Japan $174B AUM 33.96% 1-Year Est. Return

Great Diamond Partners's GLW Position: Q3 2026 in Review

Great Diamond Partners reduced its Corning (GLW) stake by 12% in Q3 2026, selling an estimated $536K and leaving 25,633 shares worth $3.94M. The position accounts for 0.66% of the portfolio, ranked #38.

Great Diamond Partners first reported a position in GLW in Q4 2019 and has held it in 6 quarters since. The position peaked at $7.41M in Q2 2026. 1,491 funds tracked by Wall St. Rank hold GLW as of Q3 2026.

  • Great Diamond Partners held 25,633 shares of Corning worth $3.94M as of Q3 2026.
  • Great Diamond Partners sold 3,371 Corning shares in Q3 2026, an estimated $536K.
  • Corning made up 0.66% of Great Diamond Partners's portfolio in Q3 2026, its #38 holding.
  • Great Diamond Partners first reported a position in Corning in Q4 2019 and has held it in 6 quarters since.
  • Great Diamond Partners's Corning position peaked at $7.41M in Q2 2026.
  • 1,491 funds tracked by Wall St. Rank held Corning as of Q3 2026.

Based on Great Diamond Partners's 13F filing for Q3 2026, filed 13 Oct 2026.