Legacy Private Trust Co. reports 12.39% increase in ownership of GLW / Corning Incorporated

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MX ˙ BMV ˙ US2193501051

Security	MX:GLW / Corning Incorporated
Institution	Legacy Private Trust Co.
Latest Disclosed Ownership	13,483 shares
Latest Disclosed Value	$ 1,833,283

On April 7, 2026 - Legacy Private Trust Co. filed a 13F-HR form disclosing ownership of 13,483 shares of Corning Incorporated (MX:GLW) valued at $1,833,283 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 8, 2026 disclosing 11,997 shares of Corning Incorporated. This represents a change in shares of 12.39% 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	Reported Shares	ΔShares	ΔShares (%)	Reported Value (x1000)	ΔValue (%)	Alloc (%)
2026-04-07	2026-03-31	13F	CORNING	COM	219350105	13,483	1,486	12.39	1,833	74.57	0.0624
2026-01-08	2025-12-31	13F	CORNING	COM	219350105	11,997	5,650	89.02	1,050	101.92	0.0616
2025-10-08	2025-09-30	13F	CORNING	COM	219350105	6,347	-53	-0.83	521	54.76	0.0310
2025-07-08	2025-06-30	13F	CORNING	COM	219350105	6,400	0	0.00	337	15.07	0.0217
2025-04-04	2025-03-31	13F	CORNING	COM	219350105	6,400	0	0.00	293	-3.95	0.0201
2025-01-08	2024-12-31	13F	CORNING	COM	219350105	6,400	0	0.00	304	5.56	0.0199
2024-10-07	2024-09-30	13F	CORNING	COM	219350105	6,400	0	0.00	289	16.13	0.0194
2024-07-12	2024-06-30	13F	CORNING	COM	219350105	6,400	-500	-7.25	249	9.25	0.0177
2024-04-10	2024-03-31	13F	CORNING	COM	219350105	6,900	0	0.00	227	8.10	0.0166
2024-01-10	2023-12-31	13F	CORNING	COM	219350105	6,900	0	0.00	210	0.00	0.0167
2023-10-11	2023-09-30	13F	CORNING	COM	219350105	6,900	0	0.00	210	-12.86	0.0181
2023-07-07	2023-06-30	13F	CORNING	COM	219350105	6,900	0	0.00	242	-0.82	0.0200
2023-04-12	2023-03-31	13F	CORNING	COM	219350105	6,900	0	0.00	243	10.45	0.0208
2023-01-19	2022-12-31	13F/A-1	CORNING	COM	219350105	6,900	0	0.00	220	10.00	0.0199
2023-01-06	2022-12-31	13F	CORNING	COM	219350105	6,900	0		0		0.0199
2022-10-06	2022-09-30	13F	CORNING	COM	219350105	6,900	-620	-8.24	200	-15.61	0.0190
2022-07-07	2022-06-30	13F	CORNING	COM	219350105	7,520	-700	-8.52	237	-21.78	0.0212
2022-04-11	2022-03-31	13F	CORNING	COM	219350105	8,220	0	0.00	303	-0.98	0.0235
2022-01-12	2021-12-31	13F	CORNING	COM	219350105	8,220	0	0.00	306	2.00	0.0230
2021-10-12	2021-09-30	13F	CORNING	COM	219350105	8,220	0	0.00	300	-10.71	0.0243
2021-07-09	2021-06-30	13F	CORNING	COM	219350105	8,220	-1,650	-16.72	336	-21.68	0.0283
2021-04-09	2021-03-31	13F	CORNING	COM	219350105	9,870	285	2.97	429	24.35	0.0387
2021-01-12	2020-12-31	13F	CORNING	COM	219350105	9,585	-315	-3.18	345	7.48	0.0326
2020-10-14	2020-09-30	13F	CORNING	COM	219350105	9,900	1,250	14.45	321	43.30	0.0332
2020-07-09	2020-06-30	13F	CORNING	COM	219350105	8,650	-1,221	-12.37	224	10.34	0.0247
2020-04-23	2020-03-31	13F	CORNING	COM	219350105	9,871	-205	-2.03	203	-30.72	0.0263
2020-01-14	2019-12-31	13F	CORNING	COM	219350105	10,076	-560	-5.27	293	-3.30	0.0307
2019-10-10	2019-09-30	13F	CORNING	COM	219350105	10,636	-1,900	-15.16	303	-27.34	0.0339
2019-07-18	2019-06-30	13F	CORNING	COM	219350105	12,536	-1,556	-11.04	417	-10.52	0.0475
2019-04-11	2019-03-31	13F	CORNING	COM	219350105	14,092	-1,322	-8.58	466	0.00	0.0553
2019-01-16	2018-12-31	13F	CORNING	COM	219350105	15,414	-690	-4.28	466	-17.96	0.0602
2018-10-10	2018-09-30	13F	CORNING	COM	219350105	16,104	264	1.67	568	30.28	0.0642
2018-07-13	2018-06-30	13F	CORNING	COM	219350105	15,840	-7,600	-32.42	436	-33.33	0.0520
2018-04-13	2018-03-31	13F	CORNING	COM	219350105	23,440	-9,680	-29.23	654	-38.30	0.0764
2018-01-16	2017-12-31	13F	CORNING	COM	219350105	33,120	-12,230	-26.97	1,060	-21.89	0.1237
2017-10-13	2017-09-30	13F	CORNING	COM	219350105	45,350	-6,090	-11.84	1,357	-12.23	0.1652
2017-07-14	2017-06-30	13F	CORNING	COM	219350105	51,440	680	1.34	1,546	12.76	0.1956
2017-04-11	2017-03-31	13F	CORNING	COM	219350105	50,760	1,320	2.67	1,371	14.25	0.1761
2017-01-12	2016-12-31	13F	CORNING	COM	219350105	49,440	-10,480	-17.49	1,200	-15.31	0.1629
2016-10-12	2016-09-30	13F	CORNING	COM	219350105	59,920	46,840	358.10	1,417	428.73	0.1926
2016-07-13	2016-06-30	13F	CORNING	COM	219350105	13,080	1,400	11.99	268	9.84	0.0390
2016-04-21	2016-03-31	13F	CORNING	COM	219350105	11,680	0	0.00	244	14.02	0.0368
2016-01-12	2015-12-31	13F	CORNING	COM	219350105	11,680	0	0.00	214	7.00	0.0325
2015-10-09	2015-09-30	13F	CORNING	COM	219350105	11,680	0	0.00	200	-13.04	0.0316
2015-07-15	2015-06-30	13F	CORNING	COM	219350105	11,680	0	0.00	230	-13.21	0.0347
2015-04-13	2015-03-31	13F	CORNING	COM	219350105	11,680	0	0.00	265	-1.12	0.0389
2015-01-16	2014-12-31	13F	CORNING	COM	219350105	11,680	0	0.00	268	18.58	0.0393
2014-10-14	2014-09-30	13F	CORNING	COM	219350105	11,680	0	0.00	226	-11.72	0.0345
2014-07-18	2014-06-30	13F/A-1	CORNING	COM	219350105	11,680	11,680		256		0.0396
2014-07-15	2014-06-30	13F	CORNING	COM	219350105	11,680	11,680		256		0.0406

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.