Corning Incorporated
MX ˙ BMV ˙ US2193501051
SecurityMX:GLW / Corning Incorporated
InstitutionMoors & Cabot, Inc.
Latest Disclosed Ownership46,761 shares
Latest Disclosed Value $ 6,358,140
Moors & Cabot, Inc. ownership in GLW / Corning Incorporated

On May 8, 2026 - Moors & Cabot, Inc. filed a 13F-HR form disclosing ownership of 46,761 shares of Corning Incorporated (MX:GLW) valued at $6,358,140 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 45,568 shares of Corning Incorporated. This represents a change in shares of 2.62% during the quarter.

Moors & Cabot, Inc. 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)
2026-05-08 2026-03-31 13F CORNING COM 219350105 46,761 1,193 2.62 6,358 59.39 0.2722
2026-02-10 2025-12-31 13F CORNING COM 219350105 45,568 -3,389 -6.92 3,990 -0.65 0.1708
2025-11-14 2025-09-30 13F CORNING COM 219350105 48,957 -7,399 -13.13 4,016 35.50 0.1752
2025-08-06 2025-06-30 13F CORNING COM 219350105 56,356 -1,112 -1.93 2,964 12.66 0.1377
2025-05-08 2025-03-31 13F CORNING COM 219350105 57,468 1,299 2.31 2,631 -1.46 0.1335
2025-02-07 2024-12-31 13F CORNING COM 219350105 56,169 -492 -0.87 2,669 4.34 0.1269
2024-11-08 2024-09-30 13F CORNING COM 219350105 56,661 -24,498 -30.19 2,558 -18.87 0.1271
2024-08-09 2024-06-30 13F CORNING COM 219350105 81,159 20,512 33.82 3,153 57.81 0.1679
2024-05-08 2024-03-31 13F CORNING COM 219350105 60,647 -63,213 -51.04 1,999 -47.02 0.1084
2024-02-14 2023-12-31 13F CORNING COM 219350105 123,860 -13,888 -10.08 3,772 -10.15 0.2350
2023-11-08 2023-09-30 13F CORNING COM 219350105 137,748 -5,187 -3.63 4,197 -16.19 0.2846
2023-08-10 2023-06-30 13F CORNING COM 219350105 142,935 4,599 3.32 5,008 2.62 0.3325
2023-05-05 2023-03-31 13F CORNING COM 219350105 138,336 -59 -0.04 4,880 10.41 0.3355
2023-02-10 2022-12-31 13F/A-1 CORNING COM 219350105 138,395 -6,350 -4.39 4,420 5.21 0.3080
2023-02-07 2022-12-31 13F CORNING COM 219350105 135,546 -9,199 5,046 0.3362
2022-11-08 2022-09-30 13F CORNING COM 219350105 144,745 1,643 1.15 4,201 -6.83 0.3202
2022-08-08 2022-06-30 13F CORNING COM 219350105 143,102 5,895 4.30 4,509 -10.96 0.3244
2022-05-13 2022-03-31 13F CORNING COM 219350105 137,207 -4,431 -3.13 5,064 -3.96 0.3117
2022-02-14 2021-12-31 13F CORNING COM 219350105 141,638 9,601 7.27 5,273 9.69 0.3243
2021-12-08 2021-09-30 13F/A-1 CORNING COM 219350105 132,037 -39 -0.03 4,807 -11.01 0.3020
2021-08-10 2021-06-30 13F CORNING COM 219350105 132,076 5,564 4.40 5,402 -2.00 0.3789
2021-05-12 2021-03-31 13F CORNING COM 219350105 126,512 4,375 3.58 5,512 25.30 0.4220
2021-02-11 2020-12-31 13F CORNING COM 219350105 122,137 14,398 13.36 4,399 25.97 0.3699
2020-11-09 2020-09-30 13F CORNING COM 219350105 107,739 3,608 3.46 3,492 29.53 0.3285
2020-08-13 2020-06-30 13F CORNING COM 219350105 104,131 12,553 13.71 2,696 44.40 0.2871
2020-05-12 2020-03-31 13F CORNING COM 219350105 91,578 -1,696 -1.82 1,867 -31.49 0.2713
2020-01-28 2019-12-31 13F CORNING COM 219350105 93,274 -7,015 -6.99 2,725 -4.72 0.2736
2019-10-22 2019-09-30 13F CORNING COM 219350105 100,289 17,387 20.97 2,860 3.59 0.3151
2019-07-18 2019-06-30 13F CORNING COM 219350105 82,902 3,168 3.97 2,761 4.35 0.3499
2019-05-06 2019-03-31 13F/A-1 CORNING COM 219350105 79,734 14,016 21.33 2,646 33.30 0.3599
2019-05-01 2019-03-31 13F CORNING COM 219350105 159,468 93,750 5,292
2019-02-13 2018-12-31 13F CORNING COM 219350105 65,718 6,060 10.16 1,985 -5.97 0.3117
2018-11-14 2018-09-30 13F CORNING COM 219350105 59,658 1,964 3.40 2,111 31.86 0.2578
2018-08-14 2018-06-30 13F CORNING COM 219350105 57,694 -3,850 -6.26 1,601 -6.70 0.2157
2018-05-18 2018-03-31 13F CORNING COM 219350105 61,544 8,710 16.49 1,716 1.30 0.2268
2018-02-13 2017-12-31 13F CORNING COM 219350105 52,834 335 0.64 1,694 7.97 0.2244
2017-11-16 2017-09-30 13F CORNING COM 219350105 52,499 391 0.75 1,569 0.00 0.2269
2017-08-15 2017-06-30 13F CORNING COM 219350105 52,108 2,360 4.74 1,569 16.22 0.2607
2017-05-15 2017-03-31 13F CORNING COM 219350105 49,748 3,337 7.19 1,350 20.32 0.2278
2017-02-13 2016-12-31 13F CORNING COM 219350105 46,411 655 1.43 1,122 3.41 0.1847
2016-11-14 2016-09-30 13F CORNING COM 219350105 45,756 56 0.12 1,085 17.55 0.1814
2016-08-08 2016-06-30 13F CORNING COM 219350105 45,700 -344 -0.75 923 -3.65 0.1622
2016-05-10 2016-03-31 13F CORNING COM 219350105 46,044 -6,194 -11.86 958 0.63 0.1729
2016-02-09 2015-12-31 13F CORNING COM 219350105 52,238 -93 -0.18 952 5.90 0.1743
2015-11-17 2015-09-30 13F CORNING COM 219350105 52,331 -1,585 -2.94 899 -15.98 0.1661
2015-08-17 2015-06-30 13F CORNING COM 219350105 53,916 -35 -0.06 1,070 -12.80 0.1740
2015-05-14 2015-03-31 13F CORNING COM 219350105 53,951 900 1.70 1,227 1.32 0.2047
2015-02-17 2014-12-31 13F CORNING COM 219350105 53,051 -99 -0.19 1,211 16.78 0.2052
2014-11-12 2014-09-30 13F CORNING COM 219350105 53,150 -3,348 -5.93 1,037 -16.24 0.1764
2014-08-11 2014-06-30 13F CORNING COM 219350105 56,498 86 0.15 1,238 5.45 0.2087
2014-05-08 2014-03-31 13F CORNING COM 219350105 56,412 56,412 1,174 0.2970
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
(%)
2022-02-14 2021-12-31 13F CORNING COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2021-12-08 2021-09-30 13F/A CORNING COM Call 20,000 566.67 4 -20.00 n/a n/a n/a
2021-08-10 2021-06-30 13F CORNING COM Call 3,000 5 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.