Skip to content
drillr.ai
Sign up

GCTS

GCT Semiconductor Holding, Inc.

NYSE · Technology · Semiconductors · US

$1.25
−2.34%
Ask drillr
0
Insider buys (3m)
0
Insider sells (3m)
$0.00
Net value (3m)
-31.7%
Price return (3m)
Form 4 filings
DateInsiderActivitySharesPrice
Oct 2, 2026TUDER JEFFREY · director, other: Class III DirectorA-Award12,971$0.00
Oct 2, 2026Chan Nelson · director, other: Class I DirectorA-Award12,971$0.00
Oct 2, 2026Chun Kukjin · director, other: Class I DirectorA-Award12,971$0.00
Oct 2, 2026Shin Hyunsoo · director, other: Class II DirectorA-Award12,971$0.00
Oct 2, 2026Lee Kyeongho · director, other: Chairman & Class III DirectorA-Award12,971$0.00
Oct 2, 2026Barker Robert · director, other: Class II DirectorA-Award12,971$0.00
Sep 14, 2026Schlaefer John · director, officer: President, CEO & Class III DirA-Award150,000$0.00
Sep 14, 2026Kim Jeong-Min · officer: Chief Technology OfficerA-Award100,000$0.00
Sep 14, 2026Cheng Edmond · officer: Chief Financial OfficerA-Award145,000$0.00
Sep 14, 2026Sum Alex · officer: Sr. VP of Sales and MarketingA-Award75,000$0.00
Jul 7, 2026TUDER JEFFREY · director, other: Class III DirectorA-Award9,259$0.00
Jul 2, 2026Chun Kukjin · director, other: Class I DirectorA-Award9,259$0.00
Jul 2, 2026Lee Kyeongho · director, other: Chairman & Class III DirectorA-Award9,259$0.00
Jul 2, 2026Shin Hyunsoo · director, other: Class II DirectorA-Award9,259$0.00
Jul 2, 2026Barker Robert · director, other: Class II DirectorA-Award9,259$0.00
Jul 2, 2026Chan Nelson · director, other: Class I DirectorA-Award9,259$0.00
Apr 2, 2026Chun Kukjin · director, other: Class I DirectorA-Award24,122$0.00
Apr 2, 2026Chan Nelson · director, other: Class I DirectorA-Award24,122$0.00
Apr 2, 2026Lee Kyeongho · director, other: Chairman & Class III DirectorA-Award24,122$0.00
Apr 2, 2026TUDER JEFFREY · director, other: Class III DirectorA-Award24,122$0.00
Apr 2, 2026Shin Hyunsoo · director, other: Class II DirectorA-Award24,122$0.00
Apr 2, 2026Barker Robert · director, other: Class II DirectorA-Award24,122$0.00
Jan 5, 2026TUDER JEFFREY · director, other: Class III DirectorA-Award22,916$0.00
Jan 5, 2026Barker Robert · director, other: Class II DirectorA-Award22,916$0.00
Jan 5, 2026Shin Hyunsoo · director, other: Class II DirectorA-Award22,916$0.00
Jan 5, 2026Lee Kyeongho · director, other: Chairman & Class III DirectorA-Award22,916$0.00
Jan 5, 2026Chun Kukjin · director, other: Class I DirectorA-Award22,916$0.00
Jan 5, 2026Chan Nelson · director, other: Class I DirectorA-Award22,916$0.00
Nov 28, 2025Shin Hyunsoo · director, other: Class II DirectorPurchase16,725$1.28
Nov 24, 2025Shin Hyunsoo · director, other: Class II DirectorPurchase25,453$1.28
Institutional positioning

13F filings over the trailing two quarters

New 44Increased 25Reduced 6Sold out 10
FilerActionSharesFiled
VANGUARD CAPITAL MANAGEMENT LLCIncreased2,999,130Aug 13, 2026
VANGUARD CAPITAL MANAGEMENT LLCNew Position1,744,949May 15, 2026
RENAISSANCE TECHNOLOGIES LLCNew Position1,695,300Aug 13, 2026
MARSHALL WACE, LLPNew Position1,296,433Aug 13, 2026
BlackRock, Inc.Increased1,281,164Aug 7, 2026
TUDOR INVESTMENT CORP ET ALNew Position818,485Aug 14, 2026
GEODE CAPITAL MANAGEMENT, LLCIncreased767,459Aug 12, 2026
UBS Group AGIncreased646,238Aug 13, 2026
BLACKROCK, INC.Increased597,947May 13, 2026
GEODE CAPITAL MANAGEMENT, LLCIncreased474,346May 15, 2026
VANGUARD FIDUCIARY TRUST COIncreased416,917Aug 13, 2026
STATE STREET CORPIncreased353,089Sep 22, 2026
VANGUARD FIDUCIARY TRUST CONew Position246,244May 8, 2026
Informed Momentum Co LLCNew Position241,246Aug 13, 2026
STATE STREET CORPIncreased240,589May 15, 2026

Insider activity from SEC Form 4; institutional positioning from 13F filings · Latest filing Oct 2, 2026