QUODD

Insider: WEEKS WENDELL P

Company Holdings	All	GLW	MRK

Company Holdings

All

GLW

MRK

	Direct	Indirect Ownership	Total
Shares	750,685	626,847	1,377,532
Value	$111,038,620.20	$92,723,208.24	$203,761,828.44

Ticker	Trans. Date	Trans. Type	Shares	Ownership Type	Issue Type	Price	Trans. Value	Total Shares Owned
GLW	02/26/2026	DDS	137,514	Direct	COM	$155.37	$21,365,838.96	750,585
GLW	08/07/2025	DDS	82,103	Direct	COM	$65.19	$5,351,933.32	809,295
GLW	02/28/2025	DDS	55,831	Direct	COM	$50.11	$2,797,853.32	762,820
GLW	02/27/2025	DDS	44,169	Direct	COM	$50.04	$2,210,110.75	818,651
GLW	10/31/2024	DDS	100,000	Direct	COM	$48.36	$4,836,150.00	859,364
GLW	07/26/2023	DDS	100,000	Direct	COM	$33.78	$3,378,000.00	847,474
GLW	02/13/2023	DDS	97,167	Direct	COM	$35.51	$3,450,361.30	683,101
GLW	02/15/2022	DDS	70,567	Direct	COM	$41.85	$2,952,876.12	0
GLW	02/14/2022	DDS	104,229	Direct	COM	$41.52	$4,327,952.88	0
GLW	05/27/2021	DDS	81,271	Indirect	COM	$44.00	$3,575,924.00	626,847
GLW	05/25/2021	DDS	18,729	Indirect	COM	$44.00	$824,147.17	708,118
GLW	02/19/2021	DDS	146,629	Direct	COM	$37.74	$5,534,291.66	0
GLW	09/17/2020	DDS	54,917	Indirect	COM	$32.47	$1,783,281.30	726,847
GLW	09/17/2020	DDS	54,917	Indirect	COM	$32.47	$1,783,281.30	726,847
GLW	07/30/2020	DDS	94,928	Indirect	COM	$31.07	$2,949,412.96	781,764
MRK	05/07/2020	DDS	5,000	Direct	COM	$76.02	$380,103.50	100
GLW	02/14/2019	DDS	223,379	Direct	COM	$33.77	$7,543,151.42	0
MRK	02/13/2019	DDS	5,000	Direct	COM	$78.71	$393,547.50	100
GLW	08/02/2018	DDS	237,470	Direct	COM	$32.87	$7,805,092.72	0
GLW	06/08/2018	DDS	224,884	Direct	COM	$28.71	$6,457,476.59	0
MRK	02/09/2018	DDS	5,000	Direct	COM	$53.57	$267,833.00	100
GLW	10/31/2017	DDS	248,857	Direct	COM	$31.37	$7,807,838.60	0
GLW	06/05/2017	DDS	153,500	Direct	COM	$29.58	$4,540,422.55	0
GLW	04/26/2017	DDS	41,075	Indirect	COM	$28.46	$1,169,088.97	767,749
GLW	03/02/2017	DDS	153,500	Direct	COM	$28.01	$4,299,412.20	0

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Trans. Date	Trans. Type	Shares	Ownership Type	Issue Type	Price	Trans. Value	Total Shares Owned
02/26/2026	DDS	137,514	Direct	COM	$155.37	$21,365,838.96	750,585
08/07/2025	DDS	82,103	Direct	COM	$65.19	$5,351,933.32	809,295
02/28/2025	DDS	55,831	Direct	COM	$50.11	$2,797,853.32	762,820
02/27/2025	DDS	44,169	Direct	COM	$50.04	$2,210,110.75	818,651
10/31/2024	DDS	100,000	Direct	COM	$48.36	$4,836,150.00	859,364
07/26/2023	DDS	100,000	Direct	COM	$33.78	$3,378,000.00	847,474
02/13/2023	DDS	97,167	Direct	COM	$35.51	$3,450,361.30	683,101
02/15/2022	DDS	70,567	Direct	COM	$41.85	$2,952,876.12	0
02/14/2022	DDS	104,229	Direct	COM	$41.52	$4,327,952.88	0
05/27/2021	DDS	81,271	Indirect	COM	$44.00	$3,575,924.00	626,847
05/25/2021	DDS	18,729	Indirect	COM	$44.00	$824,147.17	708,118
02/19/2021	DDS	146,629	Direct	COM	$37.74	$5,534,291.66	0
09/17/2020	DDS	54,917	Indirect	COM	$32.47	$1,783,281.30	726,847
09/17/2020	DDS	54,917	Indirect	COM	$32.47	$1,783,281.30	726,847
07/30/2020	DDS	94,928	Indirect	COM	$31.07	$2,949,412.96	781,764
02/14/2019	DDS	223,379	Direct	COM	$33.77	$7,543,151.42	0
08/02/2018	DDS	237,470	Direct	COM	$32.87	$7,805,092.72	0
06/08/2018	DDS	224,884	Direct	COM	$28.71	$6,457,476.59	0
10/31/2017	DDS	248,857	Direct	COM	$31.37	$7,807,838.60	0
06/05/2017	DDS	153,500	Direct	COM	$29.58	$4,540,422.55	0
04/26/2017	DDS	41,075	Indirect	COM	$28.46	$1,169,088.97	767,749
03/02/2017	DDS	153,500	Direct	COM	$28.01	$4,299,412.20	0
01/31/2017	DDS	130,667	Direct	COM	$26.40	$3,449,060.00	0
10/26/2016	DDS	204,750	Direct	COM	$23.07	$4,724,340.08	0
08/02/2016	DDS	68,250	Direct	COM	$22.21	$1,515,539.03	0

Trans. Date	Trans. Type	Shares	Ownership Type	Issue Type	Price	Trans. Value	Total Shares Owned
05/07/2020	DDS	5,000	Direct	COM	$76.02	$380,103.50	100
02/13/2019	DDS	5,000	Direct	COM	$78.71	$393,547.50	100
02/09/2018	DDS	5,000	Direct	COM	$53.57	$267,833.00	100
02/06/2017	DDS	5,000	Direct	COM	$64.51	$322,541.50	100
11/04/2015	DDS	5,000	Direct	COM	$55.53	$277,669.00	100
11/24/2014	DDS	1,800	Direct	COM	$59.13	$106,434.00	3,300
11/24/2014	DDS	3,200	Direct	COM	$59.13	$189,229.12	100
02/10/2014	DDS	5,000	Direct	COM	$54.26	$271,282.50	100
10/04/2011	DDS	100	Indirect	COM	$31.35	$3,135.00	0

Transaction Type Key
First letter: A = Acquired, D = Disposed
Second letter:
A = Grant, award or other acquisition pursuant to Rule 16b-3(d) C = Conversion of derivative security | D = Disposition to the issuer of issuer equity securities pursuant to Rule 16b-3(e) | E = Expiration of short derivative position | F = Payment of exercise price or tax liability by delivering or withholding securities incident to the receipt, exercise or vesting of a security issued in accordance with Rule 16b-3. | G = Gift | H = Expiration (or cancellation) of long derivative position with value received | I = Discretionary transaction in accordance with Rule 16b-3(f) | J = Other | L = Small acquisition under Rule 16a-6 | M = Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | O = Exercise of out-of-the-money derivative security | P = Open market or private purchase | S = Open market or private sale | U = Disposition pursuant to a tender of shares in a change of control transaction | W = Acquisition or disposition by will or the laws of descent and distribution | X = Exercise of in-the-money or at-the-money derivative security | Z = Deposit into or withdrawal from voting trust

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