Mar 31, 2026 filings. Quarterly 13F reports arrive up to 45 days after quarter end; this register is filed through May 29, 2026.
2,187 institutional managers reported holding GLW for the quarter ended Mar 31, 2026. Together they hold about 69% of shares outstanding; the top 10 hold 36%. 464 opened new positions; 143 closed out. Complete ranked register from SEC 13F filings.
| manager | shares | % out | value (Mar 31, 2026 close) | change | held since |
|---|---|---|---|---|---|
| Vanguard Group | 86.76M | 9.96% | $11.79B | trimmed -12.7% | ≤2013 |
| BlackRock | 66.71M | 7.66% | $9.07B | added +4.9% | ≤2013 |
| State Street | 36.26M | 4.16% | $4.93B | trimmed -1.4% | ≤2013 |
| FMR (Fidelity) | 24.91M | 2.86% | $3.39B | added +72.4% | ≤2013 |
| Capital Research Global Investors | 21.85M | 2.51% | $2.97B | added +29.3% | 2025 Q3 |
| Geode Capital | 20.96M | 2.41% | $2.85B | added +2.7% | ≤2013 |
| Morgan Stanley | 15.67M | 1.80% | $2.13B | added +3% | ≤2013 |
| Bank OF America CORP /DE/ | 14.50M | 1.67% | $1.97B | trimmed -16.6% | ≤2013 |
| State Farm Mutual Automobile Insurance CO | 13.42M | 1.54% | $1.82B | trimmed -3.6% | ≤2013 |
| UBS | 9.91M | 1.14% | $1.35B | added +9.7% | ≤2013 |
| Wellington Management | 8.73M | 1.00% | $1.19B | trimmed -30.6% | ≤2013 |
| Northern Trust | 8.70M | 1.00% | $1.18B | trimmed -4.9% | ≤2013 |
| WCM Investment Management | 8.11M | 0.93% | $1.10B | trimmed -1.4% | 2025 Q3 |
| Goldman Sachs | 7.97M | 0.92% | $1.08B | added +36.9% | ≤2013 |
| T. Rowe Price | 7.56M | 0.87% | $1.03B | trimmed -6% | ≤2013 |
| Ameriprise Financial INC | 6.95M | 0.80% | $944.6M | trimmed -30.3% | ≤2013 |
| BNY Mellon | 6.18M | 0.71% | $839.9M | trimmed -8.7% | ≤2013 |
| Deutsche Bank AG\ | 5.02M | 0.58% | $682.1M | added +141.2% | 2013 Q3 |
| Charles Schwab Investment Management | 5.01M | 0.57% | $680.9M | added +0.9% | ≤2013 |
| Legal & General Group PLC | 4.89M | 0.56% | $664.3M | trimmed -3.9% | ≤2013 |
| Invesco | 4.36M | 0.50% | $593.4M | trimmed -15.6% | ≤2013 |
| Dimensional Fund Advisors | 4.24M | 0.49% | $577.0M | trimmed -30.5% | ≤2013 |
| PRIMECAP Management | 4.13M | 0.47% | $562.1M | unchanged | ≤2013 |
| Amundi | 3.96M | 0.45% | $538.1M | trimmed -15% | 2017 Q4 |
| London CO OF Virginia | 3.80M | 0.44% | $516.0M | trimmed -34.8% | ≤2013 |
| Lone Pine Capital (focused) | 3.72M | 0.43% | $505.5M | opened | 2026 Q1 |
| Mariner, LLC | 3.56M | 0.41% | $484.3M | added +1.2% | ≤2013 |
| Polar Capital Holdings PLC | 3.33M | 0.38% | $453.2M | added +45.8% | 2024 Q4 |
| Voya Investment Management LLC | 3.01M | 0.34% | $409.0M | trimmed -3.1% | ≤2013 |
| Anther Capital LTD (focused) | 3.00M | 0.34% | $408.2M | opened | 2026 Q1 |
| Jane Street | 2.97M | 0.34% | $403.5M | added +78.9% | 2015 Q2 |
| Royal Bank OF Canada | 2.74M | 0.32% | $372.7M | trimmed -23.7% | ≤2013 |
| Stifel Financial CORP | 2.67M | 0.31% | $363.4M | trimmed -9.4% | ≤2013 |
| Raymond James Financial INC | 2.62M | 0.30% | $355.6M | trimmed -28% | ≤2013 |
| Aspex Management (HK) LTD (focused) | 2.54M | 0.29% | $345.9M | opened | 2026 Q1 |
| Barclays PLC | 2.48M | 0.28% | $337.4M | added +73.7% | ≤2013 |
| Swiss National Bank | 2.39M | 0.27% | $325.0M | added +7.2% | ≤2013 |
| Assenagon Asset Management S.a. | 2.38M | 0.27% | $323.3M | added +26.4% | 2020 Q3 |
| AGF Management LTD | 2.35M | 0.27% | $319.4M | added +5.7% | 2025 Q4 |
| Whale Rock Capital (focused) | 2.30M | 0.26% | $312.3M | trimmed -13.9% | 2025 Q2 |
| MFS Investment Management | 2.28M | 0.26% | $309.7M | trimmed -35.5% | 2019 Q4 |
| Nuveen | 2.22M | 0.26% | $301.7M | added +2.6% | ≤2013 |
| National Pension Service | 2.19M | 0.25% | $298.1M | trimmed -4.2% | 2014 Q3 |
| Mitsubishi UFJ Asset Management CO., LTD. | 2.18M | 0.25% | $295.8M | added +6.7% | ≤2013 |
| Arrowstreet Capital | 2.16M | 0.25% | $293.7M | trimmed -52.6% | 2025 Q3 |
| BNP Paribas Financial Markets | 2.11M | 0.24% | $287.2M | added +14.1% | ≤2013 |
| Evergreen Quality Fund GP, LTD. (focused) | 2.01M | 0.23% | $273.2M | trimmed -5% | 2025 Q4 |
| SG Americas Securities, LLC | 2.00M | 0.23% | $272.5M | added +224% | ≤2013 |
| WT Asset Management LTD (focused) | 1.98M | 0.23% | $268.9M | added +101.4% | 2025 Q3 |
| Wells Fargo & COMPANY/MN | 1.93M | 0.22% | $262.7M | trimmed -27.6% | ≤2013 |
Largest 50 of 2,187 shown; the full ranked, searchable register is at boothcheck.com/holders/GLW. Related filers are grouped using the filings' own included-manager declarations. Historically, several managers opening new positions in the same quarter said almost nothing about the quarter that followed (59,118 cases since 2013). A filed record, not a forecast. Nothing here is investment advice.