Corning Incorporated
MX ˙ BMV ˙ US2193501051
SecurityMX:GLW / Corning Incorporated
InstitutionWoodline Partners LP
Latest Disclosed Ownership154,242 shares
Latest Disclosed Value $ 20,972,285
Woodline Partners LP reports 15.33% increase in ownership of GLW / Corning Incorporated

On May 15, 2026 - Woodline Partners LP filed a 13F-HR/A form disclosing ownership of 154,242 shares of Corning Incorporated (MX:GLW) valued at $20,972,285 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 133,735 shares of Corning Incorporated. This represents a change in shares of 15.33% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F/A-1 CORNING COM 219350105 154,242 20,507 15.33 20,972 79.11 0.0793
2026-05-15 2026-03-31 13F CORNING COM 219350105 154,242 20,507 20,972 0.0793
2026-02-17 2025-12-31 13F CORNING COM 219350105 133,735 -157,817 -54.13 11,710 -51.04 0.0454
2025-11-14 2025-09-30 13F CORNING COM 219350105 291,552 -1,096,250 -78.99 23,916 -67.23 0.1126
2025-08-14 2025-06-30 13F CORNING COM 219350105 1,387,802 1,387,802 72,985 0.3855
2025-05-15 2025-03-31 13F CORNING COM 219350105 0 -793,871 -100.00 0 -100.00
2025-02-14 2024-12-31 13F CORNING COM 219350105 793,871 649,399 449.50 37,725 478.41 0.2550
2024-11-14 2024-09-30 13F CORNING COM 219350105 144,472 144,472 6,523 0.0549
2024-08-14 2024-06-30 13F CORNING COM 219350105 0 -401,899 -100.00 0 -100.00
2024-05-15 2024-03-31 13F CORNING COM 219350105 401,899 401,899 13,247 0.1219
2024-02-14 2023-12-31 13F CORNING COM 219350105 0 -156,218 -100.00 0 -100.00
2023-11-14 2023-09-30 13F CORNING COM 219350105 156,218 156,218 4,760 0.0558
2023-08-14 2023-06-30 13F CORNING COM 219350105 0 -995,171 -100.00 0 -100.00
2023-05-15 2023-03-31 13F CORNING COM 219350105 995,171 995,171 35,110 0.4777
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.