Corning Incorporated
CH ˙ SWX ˙ US2193501051
154,54 CHF ↓ -4,20 (-2,65%)
2026-06-04
DEL PRIS
SecurityCH:GLW / Corning Incorporated
InstitutionParallel Advisors, LLC
Latest Disclosed Ownership20,855 shares
Latest Disclosed Value $ 1,826,066
Parallel Advisors, LLC ownership in GLW / Corning Incorporated

On February 11, 2026 - Parallel Advisors, LLC filed a 13F-HR form disclosing ownership of 20,855 shares of Corning Incorporated (CH:GLW) valued at $1,826,066 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 20,459 shares of Corning Incorporated. This represents a change in shares of 1.94% during the quarter. The current value of the position is $3,222,932 USD.

Parallel Advisors, 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.

CH: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)
2026-02-11 2025-12-31 13F CORNING INC COM Stock 219350105 20,855 396 1.94 1,826 8.82 0.0334
2025-11-13 2025-09-30 13F CORNING INC COM Stock 219350105 20,459 349 1.74 1,678 58.75 0.0307
2025-07-08 2025-06-30 13F CORNING INC COM Stock 219350105 20,110 -921 -4.38 1,058 9.88 0.0211
2025-04-08 2025-03-31 13F CORNING INC COM Stock 219350105 21,031 414 2.01 963 -1.74 0.0217
2025-02-10 2024-12-31 13F CORNING INC COM Stock 219350105 20,617 604 3.02 980 8.42 0.0220
2024-11-13 2024-09-30 13F CORNING INC COM Stock 219350105 20,013 -1,457 -6.79 904 8.27 0.0212
2024-08-08 2024-06-30 13F CORNING INC COM Stock 219350105 21,470 440 2.09 834 20.35 0.0214
2024-05-06 2024-03-31 13F CORNING INC COM Stock 219350105 21,030 103 0.49 693 8.79 0.0188
2024-02-12 2023-12-31 13F CORNING INC COM Stock 219350105 20,927 1,883 9.89 637 9.83 0.0189
2024-05-20 2023-09-30 13F/A-1 CORNING INC COM Stock 219350105 19,044 -331 -1.71 580 -14.45 0.0193
2023-11-14 2023-09-30 13F CORNING INC COM Stock 219350105 19,044 -331 580 0.0193
2024-05-20 2023-06-30 13F/A-1 CORNING INC COM Stock 219350105 19,375 -234 -1.19 679 -1.88 0.0219
2023-08-04 2023-06-30 13F CORNING INC COM Stock 219350105 19,375 -234 679 0.0219
2024-05-20 2023-03-31 13F/A-1 CORNING INC COM Stock 219350105 19,609 2,655 15.66 692 27.73 0.0233
2023-04-25 2023-03-31 13F CORNING INC COM Stock 219350105 19,609 2,655 692 0.0233
2023-02-06 2022-12-31 13F CORNING INC COM Stock 219350105 16,954 -1,913 -10.14 542 -1.28 0.0235
2022-11-10 2022-09-30 13F CORNING INC COM Stock 219350105 18,867 1,621 9.40 548 0.92 0.0252
2022-08-01 2022-06-30 13F CORNING INC COM Stock 219350105 17,246 988 6.08 543 -11.13 0.0249
2022-04-28 2022-03-31 13F CORNING INC COM Stock 219350105 16,258 38 0.23 611 1.16 0.0242
2022-01-20 2021-12-31 13F CORNING INC COM Stock 219350105 16,220 918 6.00 604 8.24 0.0224
2021-11-02 2021-09-30 13F/A-1 CORNING INC COM Stock 219350105 15,302 -1,555 -9.22 558 -19.01 0.0225
2021-08-06 2021-06-30 13F CORNING INC COM Stock 219350105 16,857 572 3.51 689 -2.82 0.0292
2021-04-23 2021-03-31 13F CORNING INC COM Stock 219350105 16,285 388 2.44 709 23.95 0.0335
2021-02-02 2020-12-31 13F CORNING INC COM Stock 219350105 15,897 -441 -2.70 572 7.92 0.0310
2020-10-27 2020-09-30 13F CORNING INC COM Stock 219350105 16,338 789 5.07 530 31.84 0.0328
2020-07-16 2020-06-30 13F CORNING INC COM Stock 219350105 15,549 -1,717 -9.94 402 13.56 0.0262
2020-04-27 2020-03-31 13F CORNING INC COM Stock 219350105 17,266 9,125 112.09 354 49.37 0.0287
2020-01-30 2019-12-31 13F CORNING INC COM Stock 219350105 8,141 -499 -5.78 237 -3.66 0.0178
2019-11-01 2019-09-30 13F CORNING INC COM Stock 219350105 8,640 77 0.90 246 -13.68 0.0211
2019-08-05 2019-06-30 13F CORNING INC COM Stock 219350105 8,563 1,139 15.34 285 15.85 0.0278
2019-05-01 2019-03-31 13F CORNING INC COM Stock 219350105 7,424 187 2.58 246 12.84 0.0276
2019-02-05 2018-12-31 13F CORNING INC COM Stock 219350105 7,237 565 8.47 218 -7.63 0.0304
2018-11-01 2018-09-30 13F CORNING INC COM Stock 219350105 6,672 184 2.84 236 32.58 0.0293
2018-07-30 2018-06-30 13F CORNING INC COM Stock 219350105 6,488 -2,184 -25.18 178 -26.45 0.0255
2018-05-08 2018-03-31 13F CORNING INC COM Stock 219350105 8,672 -201 -2.27 242 -14.79 0.0378
2018-02-13 2017-12-31 13F CORNING INC COM Stock 219350105 8,873 1,500 20.34 284 21.89 0.0465
2017-11-15 2017-09-30 13F/A-1 CORNING INC COM Stock 219350105 7,373 4,789 185.33 233 210.67 0.0401
2017-08-07 2017-06-30 13F CORNING INC COM Stock 219350105 2,584 130 5.30 75 5.63 0.0141
2017-05-12 2017-03-31 13F/A-1 CORNING INC COM Stock 219350105 2,454 -218 -8.16 71 9.23 0.0141
2017-05-12 2017-03-31 13F CORNING INC COM Stock 219350105 2,454 71
2017-02-14 2016-12-31 13F CORNING INC COM Stock 219350105 2,672 2,672 65 0.0153
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
(%)
2022-01-19 2021-12-31 13F CORNING INC COM Stock Call 0 -100.00 0 -100.00 n/a n/a n/a
2021-10-22 2021-09-30 13F CORNING INC COM Stock Call 16,857 689 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.