GCTS
GCT SEMICOND (GCTS)
NYSE
$1.95+$0.04 (+1.99%)
Price as of Sep 11, 2026 8:00 PM EDT
  • $175.7M
    Market Cap
  • 26.49%
    1-Year Change
  • Semiconductors
    Industry

Top Holders

Institutional
Mutual Funds
Holder
Ownership %
Shares Held
Change (Shares, %)
Report Date
VANGUARD CAPITAL MANAGEMENT LLC
3.30%
3.0M
+1.3M (+41.82%)
Jun 30, 2026
VANGUARD GROUP INC
2.21%
2.0M
+422,378 (+21.05%)
Dec 31, 2025
RENAISSANCE TECHNOLOGIES LLC
1.86%
1.7M
+1.7M (+100.00%)
Jun 30, 2026
MARSHALL WACE, LLP
1.43%
1.3M
+1.3M (+100.00%)
Jun 30, 2026
BLACKROCK, INC.
1.41%
1.3M
+683,217 (+53.33%)
Jun 30, 2026
BLACKROCK FUNDING, INC. /DE
0.96%
876,433
+4,844 (+0.55%)
Dec 31, 2024
TUDOR INVESTMENT CORP ET AL
0.90%
818,485
+818,485 (+100.00%)
Jun 30, 2026

Current Ownership Distribution

  • Institutions37.2M (40.89%)
  • Other25.2M (27.74%)
  • Mutual Funds16.3M (17.94%)
  • Insiders12.2M (13.43%)

Insider Transactions

  • 13.43% (12.2M)
    Current InsiderOwnership (%, shares)
  • 1
    Number of InsiderBuying (last 12 months)
  • $2.8M
    Amount of InsiderBuying (last 12 months)
  • 0
    Number of InsiderSelling (last 12 months)
  • $0.00
    Amount of InsiderSelling (last 12 months)
Insider Name & Title
Type
Date
Transaction Value
Shares
Share Price
Shares After Transactions
Lee Kyeongho
Award
Jun 30, 2026
$0.00
9,259
$0.00
1.1M
Chun Kukjin
Award
Jun 30, 2026
$0.00
9,259
$0.00
98,636
Shin Hyunsoo
Award
Jun 30, 2026
$0.00
9,259
$0.00
814,068
Barker Robert
Award
Jun 30, 2026
$0.00
9,259
$0.00
151,710
Barker Robert
Award
Mar 31, 2026
$0.00
24,122
$0.00
142,451
Chun Kukjin
Award
Mar 31, 2026
$0.00
24,122
$0.00
89,377
TUDER JEFFREY
Award
Mar 31, 2026
$0.00
24,122
$0.00
141,931
Lee Kyeongho
Award
Mar 31, 2026
$0.00
24,122
$0.00
1.1M
Chun Kukjin
Gift
Feb 23, 2026
$0.00
40,000
$0.00
65,255
Chun Kukjin
Award
Dec 31, 2025
$0.00
22,916
$0.00
105,255
Shin Hyunsoo
Award
Dec 31, 2025
$0.00
22,916
$0.00
780,687
CHAN NELSON C
Award
Dec 31, 2025
$0.00
22,916
$0.00
101,520
Barker Robert
Award
Dec 31, 2025
$0.00
22,916
$0.00
118,329
TUDER JEFFREY
Award
Dec 31, 2025
$0.00
22,916
$0.00
117,809
Lee Kyeongho
Award
Dec 31, 2025
$0.00
22,916
$0.00
1.1M
Shin Hyunsoo
Buy
Nov 25, 2025
$21,408.00
16,725
$1.28
757,771
Shin Hyunsoo
Buy
Nov 21, 2025
$4,070.40
3,180
$1.28
741,046
Shin Hyunsoo
Buy
Nov 20, 2025
$32,579.84
25,453
$1.28
737,866
Shin Hyunsoo
Award
Sep 30, 2025
$0.00
18,092
$0.00
712,413
Lee Kyeongho
Award
Sep 30, 2025
$0.00
18,092
$0.00
1.0M
Barker Robert
Award
Sep 30, 2025
$0.00
18,092
$0.00
95,413
TUDER JEFFREY
Award
Sep 30, 2025
$0.00
18,092
$0.00
94,893
CHAN NELSON C
Award
Sep 30, 2025
$0.00
18,092
$0.00
78,604
Chun Kukjin
Award
Sep 30, 2025
$0.00
18,092
$0.00
82,339
Sum Alex
Sr. VP of Sales and Marketing
Award
Sep 19, 2025
$0.00
75,000
$0.00
183,743
Schlaefer John
President, CEO & Class III Dir
Award
Sep 19, 2025
$0.00
75,000
$0.00
202,173
Cheng Edmond
Chief Financial Officer
Award
Sep 19, 2025
$0.00
75,000
$0.00
151,000
Shin Hyunsoo
Buy
Sep 05, 2025
$13,390.00
10,300
$1.30
650,254
Shin Hyunsoo
Buy
Sep 04, 2025
$10,395.00
8,250
$1.26
639,954
TUDER JEFFREY
Award
Jun 30, 2025
$0.00
18,456
$0.00
76,801