Zhang John Z

Track

Insider profile

Performance

Overall performance
2.9
Performance over holding periods
2.9
30 days 90 days 120 days
Average return 1% 8.2% 15.1%
Success rate 68% 68% 82%
Transactions
17 0% Buy
34 71% Buy
47 69% Buy
Ranking by holding-period performance
Zhang John Z's trades of Corning Inc's stock


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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Activity signal Earnings
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Notification date Transaction date Company B/S Transaction type Nb. shares
Price
Value 		Number of shares Price Value Details
2026-05-12 2026-05-11
US Corning Inc (GLW)
S Sale
71,928 -9.7%
33.62
US$359,963 		71,928 -9.7% 33.62 US$359,963
2026-05-11 2026-05-11
US Corning Inc (GLW)
PrS Proposed sale
9,249
206.92
US$346,121 		9,249 206.92 US$346,121
2026-05-06 2026-05-06
US Corning Inc (GLW)
PrS Proposed sale
44,255
157.82
US$1,764,270 		44,255 157.82 US$1,764,270
2026-05-06 2026-05-06
US Corning Inc (GLW)
S Sale
15,000 -49.8%
184.67
US$2,769,984 		15,000 -49.8% 184.67 US$2,769,984
2026-02-12 2026-02-12
US Corning Inc (GLW)
S Sale
1,531 -100.0%
133.75
US$204,765 		1,531 -100.0% 133.75 US$204,765
2026-02-12 2026-02-12
US Corning Inc (GLW)
PrS Proposed sale
1,531
133.73
US$204,739 		1,531 133.73 US$204,739
2025-08-12 2025-08-12
US Corning Inc (GLW)
PrS Proposed sale
1,212
65.53
US$79,420 		1,212 65.53 US$79,420
2025-08-12 2025-08-12
US Corning Inc (GLW)
S Sale
1,212 -100.0%
65.53
US$79,425 		1,212 -100.0% 65.53 US$79,425
2025-05-29 2025-05-28
US Corning Inc (GLW)
S Sale
9,610 -100.0%
49.29
US$473,679 		9,610 -100.0% 49.29 US$473,679
2025-05-28 2025-05-28
US Corning Inc (GLW)
PrS Proposed sale
9,610
49.29
US$473,674 		9,610 49.29 US$473,674
2025-05-13 2025-05-12
US Corning Inc (GLW)
S Sale
8,000 -45.4%
46.91
US$375,294 		8,000 -45.4% 46.91 US$375,294
2025-05-12 2025-05-12
US Corning Inc (GLW)
PrS Proposed sale
8,000
46.91
US$375,288 		8,000 46.91 US$375,288
2025-02-19 2025-02-18
US Corning Inc (GLW)
S Sale
14,111 -100.0%
52.78
US$744,757 		14,111 -100.0% 52.78 US$744,757
2025-02-18 2025-02-18
US Corning Inc (GLW)
PrS Proposed sale
14,111
52.78
US$744,711 		14,111 52.78 US$744,711
2024-11-14 2024-11-13
US Corning Inc (GLW)
S Sale
5,175 -100.0%
48.36
US$250,264 		5,175 -100.0% 48.36 US$250,264
2024-11-13 2024-11-13
US Corning Inc (GLW)
PrS Proposed sale
5,175
48.35
US$250,211 		5,175 48.35 US$250,211
2024-08-15 2024-08-13
US Corning Inc (GLW)
S Sale
12,918 -100.0%
39.73
US$513,206 		12,918 -100.0% 39.73 US$513,206
2024-08-13 2024-08-13
US Corning Inc (GLW)
PrS Proposed sale
12,918
39.73
US$513,206 		12,918 39.73 US$513,206
2024-05-02 2024-05-02
US Corning Inc (GLW)
PrS Proposed sale
12,546
33.42
US$419,273 		12,546 33.42 US$419,273
2024-05-02 2024-05-02
US Corning Inc (GLW)
S Sale
12,546 -52.5%
33.42
US$419,302 		12,546 -52.5% 33.42 US$419,302
2024-02-16 2024-02-15
US Corning Inc (GLW)
S Sale
6,607 -34.5%
32.02
US$211,563 		6,607 -34.5% 32.02 US$211,563
2024-02-15 2024-02-15
US Corning Inc (GLW)
PrS Proposed sale
6,607
32.02
US$211,556 		6,607 32.02 US$211,556
2023-05-09 2023-05-05
US Corning Inc (GLW)
S Sale
15,000 -54.5%
31.45
US$471,784 		15,000 -54.5% 31.45 US$471,784
2023-05-05 2023-05-05
US Corning Inc (GLW)
PrS Proposed sale
15,000
31.52
US$472,845 		15,000 31.52 US$472,845
2023-02-17 2023-02-16
US Corning Inc (GLW)
S Sale
5,744 -100.0%
35.52
US$204,004 		5,744 -100.0% 35.52 US$204,004
2023-02-06 2023-02-03
US Corning Inc (GLW)
S Sale
4,655 -44.8%
36.00
US$167,593 		4,655 -44.8% 36.00 US$167,593
2022-02-04 2022-02-04
US Corning Inc (GLW)
S Sale
13,320 -74.1%
42.01
US$559,593 		13,320 -74.1% 42.01 US$559,593
2021-05-05 2021-05-03
US Corning Inc (GLW)
S Sale
2,570 -58.0%
44.60
US$114,609 		2,570 -58.0% 44.60 US$114,609
2021-05-05 2021-05-03
US Corning Inc (GLW)
S Sale
16,843 -79.2%
44.62
US$751,498 		16,843 -79.2% 44.62 US$751,498
2021-03-02 2021-03-01
US Corning Inc (GLW)
S Sale
11,409 -100.0%
39.23
US$447,591 		11,409 -100.0% 39.23 US$447,591