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Livermore
Livermore
ZHEN

Charles & Colvard Ltd

CTHRDelisted
Industry
Jewelry, Silverware & Plated Ware
SEC CIK
0001015155

Charles & Colvard Ltd was delisted in 2025; its insiders filed their last Form 4 on Aug 25, 2025; 13 institutions reported holding it in 13F filings for Q1 2025, worth $239.9K in total; no superinvestor held it.

Holders of 5% or more of CTHR

Holders whose latest Schedule 13D or 13G filing reports 5% or more of Charles & Colvard Ltd, largest stake first. The change is against the holder's previous filing.

Holders of 5% or more of CTHR
HolderLatest formStakeChangeFirst filedLatest filingFiling
Bhanderi Ruten13D42.79%1.91M sharesNewSep 8, 20251 filingSep 8, 2025SEC
Pham Duc Hoang13D/A11.90%532.2K shares+2.30 ppfrom 9.60%Aug 22, 20253 filingsSep 25, 2025SEC
Riverstyx Capital Management LLC13D/A11.90%532.2K shares+4.50 ppfrom 7.40%Jul 16, 20252 filingsSep 24, 2025SEC
Riverstyx Capital Management LLC13D/A7.40%232.2K shares0.00 ppfrom 7.40%Apr 22, 20247 filingsSep 2, 2025SEC

Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.

13D and 13G filings

23 Schedule 13D and 13G filings on Charles & Colvard Ltd, newest first, including old-format filings without a stake.

Schedule 13D and 13G filings on CTHR
Filed (ET)FilerFormStakeChangeEvent dateFiling
Sep 25, 20257:50 AM ETPham Duc Hoang13D/A11.90%532.2K shares+2.30 ppfrom 9.60%Sep 23, 2025SEC
Sep 24, 20259:14 AM ETRiverstyx Capital Management LLCand 6 others13D/A11.90%532.2K shares+4.50 ppfrom 7.40%Sep 23, 2025SEC
Sep 8, 20257:50 PM ETBhanderi Ruten13D42.79%1.91M sharesNewAug 29, 2025SEC
Sep 2, 20255:27 PM ETRiverstyx Capital Management LLCand 3 others13D/A7.40%232.2K shares0.00 ppfrom 7.40%Aug 22, 2025SEC
Aug 27, 20259:25 PM ETPham Duc Hoang13D/A9.60%299.9K shares0.00 ppfrom 9.60%Aug 25, 2025SEC
Aug 25, 20254:43 PM ETRiverstyx Capital Management LLCand 3 others13D/A7.40%232.2K shares−2.50 ppfrom 9.90%Aug 22, 2025SEC
Aug 22, 20257:19 PM ETPham Duc Hoangand 1 other13D9.60%299.9K sharesNewAug 20, 2025SEC
Jul 16, 20258:10 PM ETRiverstyx Capital Management LLCand 3 others13D/A7.40%232.2K shares–Apr 24, 2025SEC
Sep 16, 202411:24 AM ETRiverstyx Capital Management LLCand 3 others13D/A9.90%307.6K shares+1.20 ppfrom 8.70%Aug 19, 2024SEC
Aug 29, 202410:13 AM ETRiverstyx Capital Management LLCand 3 others13D/A8.70%271.3K shares–Aug 28, 2024SEC
Aug 28, 202412:37 PM ETRiverstyx Capital Management LLCand 3 others13D/A––Aug 27, 2024SEC
Aug 19, 20241:58 PM ETRiverstyx Capital Management LLCand 3 others13D8.70%271.1K shares+3.30 ppfrom 5.40%Aug 19, 2024SEC
Apr 22, 20243:52 PM ETRiverstyx Capital Management LLCand 3 others13G5.40%1.64M sharesNewApr 19, 2024SEC
Feb 26, 2024Sykes Ollin B13D/AOld format–––SEC
Feb 14, 2024Punch & Associates Investment Management, Inc.13G/AOld format–––SEC
Nov 20, 2023Sykes Ollin B13D/AOld format–––SEC
May 16, 2023Valadez Carlos Daniel13D/AOld format–––SEC
May 10, 2023Valadez Carlos Daniel13D/AOld format–––SEC
Apr 11, 2023Valadez Carlos Daniel13DOld format–New–SEC
Feb 13, 2023Punch & Associates Investment Management, Inc.13G/AOld format–––SEC
Feb 13, 2023Renaissance Technologies LLC13G/AOld format–––SEC
Feb 14, 2022Punch & Associates Investment Management, Inc.13GOld format–New–SEC
Feb 11, 2022Silver Ring Value Partners Fund LP13G/AOld format–––SEC
Feb 11, 2022Renaissance Technologies LLC13G/AOld format–––SEC
Sep 23, 2021Sykes Ollin B13DOld format–––SEC
Sep 10, 2021Silver Ring Value Partners Fund LP13GOld format–––SEC
Feb 16, 2021Sykes Ollin B13G/AOld format–––SEC
Feb 10, 2021Renaissance Technologies LLC13GOld format–New–SEC
Feb 5, 2021Silver Ring Value Partners Fund LP13D/AOld format–––SEC

Form 144: proposed insider sales

Notices from officers, directors and other affiliates planning to sell Charles & Colvard Ltd shares.

No Form 144 notices for Charles & Colvard Ltd are on file.