Yan Ming

Director · Officer · CTKB

As of 2026-09-17, Yan Ming has 139 Form 4 transactions on record across 1 company — 84 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: $25.1MIndirect: $0$25.1Mas of 2026-09-17
  • Direct $25.1M
  • Indirect $0
CTKBdirect4,825,333 sh$25.1M

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

CTKB · 139 trades
2026-08-18: Withheld for tax, 3,463 sh ($16K)2026-08-18: Withheld for tax, 1,778 sh ($8K)2026-08-18: Withheld for tax, 1,501 sh ($7K)2026-08-18: Withheld for tax, 1,346 sh ($6K)2026-08-18: Option exercise, 6,162 sh ($0)2026-08-18: Option exercise, 5,525 sh ($0)2026-08-18: Option exercise, 7,363 sh ($0)2026-08-18: Option exercise, 14,220 sh ($0)2026-08-18: Option exercise, 7,363 sh2026-08-18: Option exercise, 14,220 sh2026-08-18: Option exercise, 6,162 sh2026-08-18: Option exercise, 5,525 sh2026-08-18: Option exercise, 7,363 sh2026-08-18: Option exercise, 14,220 sh2026-08-18: Option exercise, 6,162 sh2026-08-18: Option exercise, 5,525 sh2026-08-18: Option exercise, 14,220 sh2026-08-18: Option exercise, 6,162 sh2026-08-18: Option exercise, 5,525 sh2026-08-18: Option exercise, 7,363 sh2026-08-18: Option exercise, 6,162 sh2026-08-18: Option exercise, 5,525 sh2026-08-18: Option exercise, 7,363 sh2026-08-18: Option exercise, 14,220 sh2026-08-18: Option exercise, 7,363 sh2026-08-18: Option exercise, 5,525 sh2026-08-18: Option exercise, 6,162 sh2026-08-18: Option exercise, 14,220 sh2026-08-18: Option exercise, 7,363 sh2026-08-18: Option exercise, 5,525 sh2026-08-18: Option exercise, 6,162 sh2026-08-18: Option exercise, 14,220 sh2026-06-12: Gift, 135,892 sh ($0)2026-05-18: Withheld for tax, 2,364 sh ($8K)2026-05-18: Withheld for tax, 1,224 sh ($4K)2026-05-18: Withheld for tax, 1,025 sh ($4K)2026-05-18: Withheld for tax, 919 sh ($3K)2026-05-18: Option exercise, 9,480 sh ($0)2026-05-18: Option exercise, 4,108 sh ($0)2026-05-18: Option exercise, 3,683 sh ($0)2026-05-18: Option exercise, 4,908 sh ($0)2026-05-18: Option exercise, 9,480 sh2026-05-18: Option exercise, 3,683 sh2026-05-18: Option exercise, 4,108 sh2026-05-18: Option exercise, 4,108 sh2026-05-18: Option exercise, 3,683 sh2026-05-18: Option exercise, 9,480 sh2026-05-18: Option exercise, 4,908 sh2026-05-18: Option exercise, 4,908 sh2026-03-13: Gift, 1,176,000 sh ($0)2026-03-10: Withheld for tax, 3,047 sh ($13K)2026-03-10: Withheld for tax, 2,397 sh ($10K)2026-03-10: Withheld for tax, 2,287 sh ($10K)2026-03-10: Option exercise, 9,817 sh ($0)2026-03-10: Award / grant, 120,688 sh ($0)2026-03-10: Option exercise, 8,217 sh ($0)2026-03-10: Option exercise, 7,366 sh ($0)2026-03-10: Award / grant, 227,535 sh ($0)2026-03-10: Option exercise, 7,366 sh2026-03-10: Option exercise, 8,217 sh2026-03-10: Option exercise, 7,366 sh2026-03-10: Option exercise, 9,817 sh2026-03-10: Option exercise, 8,217 sh2026-03-10: Option exercise, 9,817 sh2026-02-18: Withheld for tax, 395 sh ($2K)2026-02-18: Option exercise, 1,332 sh ($0)2026-02-18: Option exercise, 1,332 sh2026-02-18: Option exercise, 1,332 sh2025-11-18: Withheld for tax, 1,793 sh ($10K)2025-11-18: Withheld for tax, 1,501 sh ($8K)2025-11-18: Withheld for tax, 1,346 sh ($7K)2025-11-18: Withheld for tax, 483 sh ($3K)2025-11-18: Option exercise, 6,162 sh ($0)2025-11-18: Option exercise, 5,525 sh ($0)2025-11-18: Option exercise, 7,363 sh ($0)2025-11-18: Option exercise, 1,981 sh ($0)2025-11-18: Option exercise, 5,525 sh2025-11-18: Option exercise, 6,162 sh2025-11-18: Option exercise, 1,981 sh2025-11-18: Option exercise, 7,363 sh2025-11-18: Option exercise, 5,525 sh2025-11-18: Option exercise, 1,981 sh2025-11-18: Option exercise, 7,363 sh2025-11-18: Option exercise, 6,162 sh2025-08-18: Withheld for tax, 2,184 sh ($9K)2025-08-18: Withheld for tax, 1,498 sh ($6K)2025-08-18: Withheld for tax, 1,468 sh ($6K)2025-08-18: Withheld for tax, 588 sh ($2K)2025-08-18: Option exercise, 1,981 sh ($0)2025-08-18: Option exercise, 6,162 sh ($0)2025-08-18: Option exercise, 5,525 sh ($0)2025-08-18: Option exercise, 7,363 sh ($0)2025-08-18: Option exercise, 1,981 sh2025-08-18: Option exercise, 1,981 sh2025-08-18: Option exercise, 6,162 sh2025-08-18: Option exercise, 7,363 sh2025-08-18: Option exercise, 5,525 sh2025-08-18: Option exercise, 5,525 sh2025-08-18: Option exercise, 7,363 sh2025-08-18: Option exercise, 6,162 sh2025-05-19: Withheld for tax, 1,456 sh ($4K)2025-05-19: Withheld for tax, 1,219 sh ($3K)2025-05-19: Withheld for tax, 1,093 sh ($3K)2025-05-19: Withheld for tax, 588 sh ($2K)2025-05-19: Option exercise, 4,108 sh ($0)2025-05-19: Option exercise, 1,981 sh ($0)2025-05-19: Option exercise, 3,683 sh ($0)2025-05-19: Option exercise, 4,908 sh ($0)2025-05-19: Option exercise, 1,981 sh2025-05-19: Option exercise, 4,908 sh2025-05-19: Option exercise, 3,683 sh2025-05-19: Option exercise, 4,108 sh2025-05-19: Option exercise, 3,683 sh2025-05-19: Option exercise, 4,908 sh2025-05-19: Option exercise, 1,981 sh2025-05-19: Option exercise, 4,108 sh2025-03-10: Withheld for tax, 2,911 sh ($13K)2025-03-10: Withheld for tax, 2,185 sh ($10K)2025-03-10: Option exercise, 7,366 sh ($0)2025-03-10: Option exercise, 9,817 sh ($0)2025-03-10: Option exercise, 7,366 sh2025-03-10: Option exercise, 7,366 sh2025-03-10: Option exercise, 9,817 sh2025-03-10: Option exercise, 9,817 sh2025-03-04: Award / grant, 98,607 sh ($0)2025-03-04: Award / grant, 156,250 sh ($0)2025-02-18: Withheld for tax, 588 sh ($3K)2025-02-18: Option exercise, 1,981 sh ($0)2025-02-18: Option exercise, 1,981 sh2025-02-18: Option exercise, 1,981 sh2024-11-18: Withheld for tax, 1,793 sh ($11K)2024-11-18: Withheld for tax, 1,346 sh ($8K)2024-11-18: Withheld for tax, 483 sh ($3K)2024-11-18: Option exercise, 1,981 sh ($0)2024-11-18: Option exercise, 5,525 sh ($0)2024-11-18: Option exercise, 7,363 sh ($0)2024-11-18: Option exercise, 7,363 sh2024-11-18: Option exercise, 5,525 sh2024-11-18: Option exercise, 1,981 sh

Filing ledger

DateCompanyActionShares @ priceValueOwnership ΔOwned afterFiling
139 award / exercise / gift records — not counted as purchases
DateCompanyActionSharesOwned afterFiling
2026-08-18CTKBWithheld for tax3,4634,821,870Form 4
2026-08-18CTKBWithheld for tax1,7784,802,273Form 4
2026-08-18CTKBWithheld for tax1,5014,811,113Form 4
2026-08-18CTKBWithheld for tax1,3464,806,452Form 4
2026-08-18CTKBOption exercise6,16263,688Form 4
2026-08-18CTKBOption exercise5,52534,995Form 4
2026-08-18CTKBOption exercise7,36317,189Form 4
2026-08-18CTKBOption exercise14,220203,835Form 4
2026-08-18CTKBOption exercise7,3634,804,051Form 4
2026-08-18CTKBOption exercise14,2204,825,333Form 4
2026-08-18CTKBOption exercise6,1624,812,614Form 4
2026-08-18CTKBOption exercise5,5254,807,798Form 4
2026-08-18CTKBOption exercise7,3634,804,051Form 4
2026-08-18CTKBOption exercise14,2204,825,333Form 4
2026-08-18CTKBOption exercise6,1624,812,614Form 4
2026-08-18CTKBOption exercise5,5254,807,798Form 4
2026-08-18CTKBOption exercise14,2204,825,333Form 4
2026-08-18CTKBOption exercise6,1624,812,614Form 4
2026-08-18CTKBOption exercise5,5254,807,798Form 4
2026-08-18CTKBOption exercise7,3634,804,051Form 4
2026-08-18CTKBOption exercise6,1624,812,614Form 4
2026-08-18CTKBOption exercise5,5254,807,798Form 4
2026-08-18CTKBOption exercise7,3634,804,051Form 4
2026-08-18CTKBOption exercise14,2204,825,333Form 4
2026-08-18CTKBOption exercise7,3634,804,051Form 4
2026-08-18CTKBOption exercise5,5254,807,798Form 4
2026-08-18CTKBOption exercise6,1624,812,614Form 4
2026-08-18CTKBOption exercise14,2204,825,333Form 4
2026-08-18CTKBOption exercise7,3634,804,051Form 4
2026-08-18CTKBOption exercise5,5254,807,798Form 4
2026-08-18CTKBOption exercise6,1624,812,614Form 4
2026-08-18CTKBOption exercise14,2204,825,333Form 4
2026-06-12CTKBGift135,8924,796,688Form 4
2026-05-18CTKBWithheld for tax2,3644,932,580Form 4
2026-05-18CTKBWithheld for tax1,2244,919,617Form 4
2026-05-18CTKBWithheld for tax1,0254,925,464Form 4
2026-05-18CTKBWithheld for tax9194,922,381Form 4
2026-05-18CTKBOption exercise9,480218,055Form 4
2026-05-18CTKBOption exercise4,10869,850Form 4
2026-05-18CTKBOption exercise3,68340,520Form 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.