Corning Incorporated
MX ˙ BMV ˙ US2193501051
SecurityMX:GLW / Corning Incorporated
InstitutionSowell Financial Services LLC
Latest Disclosed Ownership9,206 shares
Latest Disclosed Value $ 1,251,688
Sowell Financial Services LLC ownership in GLW / Corning Incorporated

On April 20, 2026 - Sowell Financial Services LLC filed a 13F-HR form disclosing ownership of 9,206 shares of Corning Incorporated (MX:GLW) valued at $1,251,688 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 21, 2026 disclosing 8,159 shares of Corning Incorporated. This represents a change in shares of 12.83% during the quarter.

Sowell Financial Services 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 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)
2026-04-20 2026-03-31 13F CORNING COM 219350105 9,206 1,047 12.83 1,252 75.21 0.0463
2026-01-21 2025-12-31 13F CORNING COM 219350105 8,159 -357 -4.19 714 2.29 0.0262
2025-10-17 2025-09-30 13F CORNING COM 219350105 8,516 -382 -4.29 699 49.46 0.0268
2025-07-14 2025-06-30 13F CORNING COM 219350105 8,898 -239 -2.62 468 11.72 0.0191
2025-04-17 2025-03-31 13F CORNING COM 219350105 9,137 9,137 418 0.0190
2024-05-03 2024-03-31 13F CORNING COM 219350105 0 -10,771 -100.00 0 -100.00
2024-01-24 2023-12-31 13F CORNING COM 219350105 10,771 -549 -4.85 328 -4.93 0.0178
2023-11-08 2023-09-30 13F CORNING COM 219350105 11,320 11,320 345 0.0217
2023-08-14 2023-06-30 13F CORNING STOCK 219350105 0 -7,968 -100.00 0 0.0000
2023-05-12 2023-03-31 13F CORNING STOCK 219350105 7,968 7,968 0 0.0217
2022-11-15 2022-09-30 13F CORNING Stock 219350105 0 -22,589 -100.00 0 -100.00
2022-08-15 2022-06-30 13F CORNING Stock 219350105 22,589 22,589 712 0.0658
2022-05-13 2022-03-31 13F CORNING INC COM Stock 219350105 0 -14,766 -100.00 0 -100.00
2022-02-09 2021-12-31 13F CORNING INC COM Stock 219350105 14,766 14,766 550 0.0315
2021-11-04 2021-09-30 13F CORNING INC COM Stock 219350105 0 -22,401 -100.00 0 -100.00
2021-08-05 2021-06-30 13F CORNING INC COM Stock 219350105 22,401 -7,290 -24.55 916 -32.45 0.0607
2021-05-07 2021-03-31 13F CORNING INC COM Stock 219350105 29,691 1,111 3.89 1,356 31.78 0.0472
2021-01-13 2020-12-31 13F CORNING INC COM COM 219350105 28,580 561 2.00 1,029 13.33 0.0440
2020-11-12 2020-09-30 13F CORNING INC COM COM 219350105 28,019 -1,203 -4.12 908 19.95 0.0453
2020-08-13 2020-06-30 13F CORNING INC COM Stock 219350105 29,222 1,551 5.61 757 33.27 0.0416
2020-05-12 2020-03-31 13F CORNING INC COM Stock 219350105 27,671 14 0.05 568 -29.44 0.0420
2020-02-07 2019-12-31 13F CORNING INC COM Stock 219350105 27,657 1,420 5.41 805 7.62 0.0613
2019-11-14 2019-09-30 13F CORNING INC COM COM 219350105 26,237 2,209 9.19 748 -5.91 0.0618
2019-05-15 2019-03-31 13F CORNING INC COM Stock 219350105 24,028 376 1.59 795 11.19 0.0888
2019-03-05 2018-12-31 13F CORNING COM 219350105 23,652 5,004 26.83 715 8.66 0.1013
2018-11-13 2018-09-30 13F CORNING COM 219350105 18,648 9 0.05 658 8.58 0.0955
2018-08-14 2018-06-30 13F CORNING COM 219350105 18,639 5,087 37.54 606 67.40 0.1286
2018-05-10 2018-03-31 13F CORNING COM 219350105 13,552 -528 -3.75 362 -26.27 0.0905
2018-01-29 2017-12-31 13F CORNING COM 219350105 14,080 -3,964 -21.97 491 -14.01 0.1200
2017-11-07 2017-09-30 13F CORNING COM 219350105 18,044 18,044 571 0.1489
2017-08-14 2017-06-30 13F CORNING COM 219350105 0 -20,008 -100.00 0 -100.00
2017-05-31 2017-03-31 13F CORNING COM 219350105 20,008 11,628 138.76 584 156.14 0.1724
2017-02-27 2016-12-31 13F Corning COM 219350105 8,380 8,380 228 0.0763
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
(%)
2019-11-14 2019-09-30 13F CORNING INC COM Stock Call 0 -100.00 0 -100.00 n/a n/a n/a
2019-05-15 2019-03-31 13F CORNING INC COM Stock Call 100 3 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.