Shin Hyunsoo

Director · Officer · Other reporting person · GCTS

As of 2026-09-16, Shin Hyunsoo has 24 Form 4 transactions on record across 1 company — 7 in the trailing 12 months.

Everything this person has disclosed to the SEC on Form 4 — across every company they file for — reconstructed from the public record. A filing history, not a tip sheet.

Reconstructed holdings

Direct: $1.6MIndirect: $0$1.6Mas of 2026-09-16
  • Direct $1.6M
  • Indirect $0
GCTSdirect814,068 sh$1.6M

Reconstructed from this person's own Form 4 filings — the total each filing reported owning afterward, priced at the close on the as-of date shown. A filed position can lag the real one.

Direct and indirect holdings (e.g. through a trust or fund) are tagged separately, as filed.

Trades by company

GCTS · 24 trades
2026-06-30: Award / grant, 9,259 sh ($0)2026-03-31: Award / grant, 24,122 sh ($0)2025-12-31: Award / grant, 22,916 sh ($0)2025-11-25: Purchase, 16,725 sh ($21K)2025-11-21: Purchase, 3,180 sh ($4K)2025-11-20: Purchase, 25,453 sh ($33K)2025-09-30: Award / grant, 18,092 sh ($0)2025-09-12: Purchase, 44,067 sh ($67K)2025-09-05: Purchase, 10,300 sh ($13K)2025-09-04: Purchase, 8,250 sh ($10K)2025-08-15: Purchase, 121,000 sh ($152K)2025-06-30: Award / grant, 18,456 sh ($0)2025-06-10: Purchase, 45,000 sh ($52K)2025-06-10: Purchase, 40,000 sh ($48K)2025-06-05: Purchase, 58,700 sh ($60K)2025-06-05: Purchase, 21,300 sh ($22K)2025-06-04: Purchase, 80,000 sh ($82K)2025-05-23: Purchase, 77,000 sh ($80K)2025-05-20: Purchase, 86,000 sh ($101K)2025-03-31: Award / grant, 16,768 sh ($0)2024-12-31: Award / grant, 11,802 sh ($0)2024-12-16: Award / grant, 37,000 sh ($95K)2024-12-13: Award / grant, 800 sh ($2K)2024-12-13: Award / grant, 200 sh ($500)

Filing ledger

DateCompanyActionShares @ priceValueOwnership ΔOwned afterFiling
2025-11-25GCTSPurchase16,725 @ $1.28$21K+2.3% of holding757,771Form 4
2025-11-21GCTSPurchase3,180 @ $1.28$4K+0.4% of holding741,046Form 4
2025-11-20GCTSPurchase25,453 @ $1.28$33K+3.6% of holding737,866Form 4
2025-09-12GCTSPurchase44,067 @ $1.51$67K+6.8% of holding694,321Form 4
2025-09-05GCTSPurchase10,300 @ $1.30$13K+1.6% of holding650,254Form 4
2025-09-04GCTSPurchase8,250 @ $1.26$10K+1.3% of holding639,954Form 4
2025-08-15GCTSPurchase121,000 @ $1.26$152K+23.7% of holding631,704Form 4
2025-06-10GCTSPurchase45,000 @ $1.16$52K+10.1% of holding492,248Form 4
2025-06-10GCTSPurchase40,000 @ $1.20$48K+9.8% of holding447,248Form 4
2025-06-05GCTSPurchase58,700 @ $1.03$60K+17.9% of holding385,948Form 4
2025-06-05GCTSPurchase21,300 @ $1.02$22K+5.5% of holding407,248Form 4
2025-06-04GCTSPurchase80,000 @ $1.02$82K+32.4% of holding327,248Form 4
2025-05-23GCTSPurchase77,000 @ $1.04$80K+45.2% of holding247,248Form 4
2025-05-20GCTSPurchase86,000 @ $1.18$101K+102.1% of holding170,248Form 4
10 award / exercise / gift records — not counted as purchases
DateCompanyActionSharesOwned afterFiling
2026-06-30GCTSAward / grant9,259814,068Form 4
2026-03-31GCTSAward / grant24,122804,809Form 4
2025-12-31GCTSAward / grant22,916780,687Form 4
2025-09-30GCTSAward / grant18,092712,413Form 4
2025-06-30GCTSAward / grant18,456510,704Form 4
2025-03-31GCTSAward / grant16,76884,248Form 4
2024-12-31GCTSAward / grant11,80267,693Form 4
2024-12-16GCTSAward / grant37,00055,891Form 4
2024-12-13GCTSAward / grant80018,691Form 4
2024-12-13GCTSAward / grant20018,891Form 4

Source: SEC Form 4 filings. Each row links to its original filing.

Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.