Key facts
- This page summarizes Jingan Tang's Form 3 filing for Tungray Technologies Inc (trsg).
- 0 reported transactions and 0 derivative rows are listed below.
- Accepted by SEC: 18 Mar 2026, 18:01.
Jingan Tang - 18 Mar 2026 Form 3 Insider Report for Tungray Technologies Inc (trsg)
- Reporting relationship
- Director
- Issuer ticker
- trsg
- Reported as of
- 18 Mar 2026
- Net transaction value
- $0
- Reporting owner signature
- /s/ Jingan Tang
Source evidence
Original filing metadata and source links for verification.
3 source fields
Reporting owner
1 detail
Key filing fact
Jingan Tang filed Form 3 for Tungray Technologies Inc (trsg) on 18 Mar 2026.
Change
- No earlier filing in this sequence is available for direct comparison.
- Current net transaction value: $0.
Research use
- This tells you what this filing adds before you inspect full transaction and derivative tables.
- You can trace every row back to the original SEC filing document.
Evidence
Official SEC source
View source filing
Ownership activity is grounded in SEC Form 3 disclosures.
Reporting Owners (1)
CIK 0001973719
Primary reporting owner
Tang Jingan
- Relationship
- Director
- Address
- C/O/ TUNGRAY TECHNOLOGIES INC, #02-01, 31 MANDAI ESTATE, SINGAPORE, SINGAPORE
- Signature
- /s/ Jingan Tang
- Signature date
- 18 Mar 2026
Reported non-derivative transactions
Shares, units, or other non-derivative securities reported in this filing.
trsg
holding
Class A Ordinary Shares
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 738,000
- Date
- 18 Mar 2026
- Ownership
- By YuChang Global Ltd.
- Footnotes
- F1, F2
trsg
holding
Class A Ordinary Shares
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 1,782,000
- Date
- 18 Mar 2026
- Ownership
- By ChangYuan International Ltd
- Footnotes
- F1, F2
* marks a reported price that did not pass the local price check.
Additional SEC filing notes
Filing notes and footnotes
Explanation of responses 2 footnotes
Footnote F1
Class B Ordinary Shares are convertible into Class A Ordinary Shares at holders' option at any time on a one for one basis. Class A Ordinary Shares are not convertible into Class B Ordinary Shares under any circumstance. Each Class A Ordinary Share entitles to 1 vote and each Class B Ordinary Share entitles to 20 votes.
Footnote F2
Mr. Tang held a total of 2,520,000 Class A Ordinary Shares including (i) 1,782,000 Class A Ordinary Shares held by ChangYuan International Ltd.; and (ii) 738,000 Class A Ordinary Shares held by YuChang Global Ltd., both of which are limited liability companies incorporated under the British Virgin Islands laws and wholly-owned by Mr. Jingan Tang. The person having voting, dispositive or investment powers over these two entities is Mr. Jingan Tang.