Corning Incorporated
MX ˙ BMV ˙ US2193501051
SecurityMX:GLW / Corning Incorporated
InstitutionToroso Investments, LLC
Latest Disclosed Ownership171,490 shares
Latest Disclosed Value $ 23,317,495
Toroso Investments, LLC ownership in GLW / Corning Incorporated

On May 15, 2026 - Toroso Investments, LLC filed a 13F-HR form disclosing ownership of 171,490 shares of Corning Incorporated (MX:GLW) valued at $23,317,495 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 377,902 shares of Corning Incorporated. This represents a change in shares of -54.62% during the quarter.

Toroso Investments, LLC has a history of taking positions in derivatives of the underlying security (GLW) in the form of stock options. The firm currently holds call options representing 700 of underlying shares valued at $95,179 USD and put options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

MX:GLW / Corning Incorporated Historical Put/Call Ratio
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 CORNING COM 219350105 171,490 -206,412 -54.62 23,317 -29.53 0.0492
2026-02-13 2025-12-31 13F CORNING COM 219350105 377,902 279,164 282.73 33,089 308.56 0.0785
2025-11-14 2025-09-30 13F CORNING COM 219350105 98,738 30,200 44.06 8,099 124.72 0.0162
2025-08-14 2025-06-30 13F CORNING COM 219350105 68,538 5,088 8.02 3,604 24.10 0.0217
2025-05-14 2025-03-31 13F CORNING COM 219350105 63,450 10,150 19.04 2,905 14.69 0.0236
2025-02-14 2024-12-31 13F CORNING COM 219350105 53,300 11,765 28.33 2,533 35.04 0.0199
2024-11-25 2024-09-30 13F/A-1 CORNING COM 219350105 41,535 5,713 15.95 1,875 34.80 0.0198
2024-11-14 2024-09-30 13F CORNING COM 219350105 41,535 5,713 1,875 0.0128
2024-08-14 2024-06-30 13F CORNING COM 219350105 35,822 -14,443 -28.73 1,392 -16.00 0.0187
2024-05-16 2024-03-31 13F CORNING COM 219350105 50,265 3,996 8.64 1,657 17.61 0.0273
2024-02-15 2023-12-31 13F CORNING COM 219350105 46,269 12,433 36.74 1,409 36.70 0.0328
2023-11-15 2023-09-30 13F CORNING COM 219350105 33,836 -1,591 -4.49 1,031 102,900.00 0.0314
2023-08-14 2023-06-30 13F CORNING COM 219350105 35,427 13,707 63.11 1 0.0365
2023-05-23 2023-03-31 13F/A-1 CORNING COM 219350105 21,720 -16,390 -43.01 1 -100.00 0.0252
2023-05-15 2023-03-31 13F CORNING COM 219350105 21,720 -16,390 1 0.0272
2023-02-15 2022-12-31 13F CORNING COM 219350105 38,110 4,779 14.34 1,217 25.85 0.0468
2022-11-23 2022-09-30 13F CORNING COM 219350105 33,331 306 0.93 967 -7.11 0.0402
2022-08-15 2022-06-30 13F CORNING COM 219350105 33,025 -18,916 -36.42 1,041 -45.70 0.0381
2022-05-20 2022-03-31 13F CORNING COM 219350105 51,941 4,870 10.35 1,917 9.42 0.0571
2022-02-16 2021-12-31 13F CORNING COM 219350105 47,071 30,476 183.65 1,752 189.11 0.0536
2021-11-15 2021-09-30 13F CORNING COM 219350105 16,595 7,993 92.92 606 72.16 0.0227
2021-08-13 2021-06-30 13F CORNING COM 219350105 8,602 8,602 352 0.0138
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-15 2026-03-31 13F CORNING COM Call 700 95 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-15 2026-03-31 13F CORNING COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2026-02-13 2025-12-31 13F CORNING COM Put 474,000 41,503 n/a n/a n/a
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.