Yin Yan - SEC Form 4 Insider Trading Activity
Summary
Updated Aug 3, 2026
Yin Yan is a corporate insider tracked by InsiderAlpha. No SEC Form 4 filings recorded in the last 90 days. Lifetime open-market sales: $1.47M.
Profile
Yin Yan serves as Chairman and CEO of Marwynn Holdings, Inc. (MWYN). Yan has also held reporting roles at Bio Essence Corp (BIOE). Yan has reported 6 insider filings with the SEC since 2024. The most recent filing was in November 2025.
| Role | Chairman and CEO, Director, 10% Owner |
|---|---|
| Notability | 50/100 |
Board memberships
- Marwynn Holdings, Inc.
- Bio Essence Corp
Reported roles
- Chairman and CEO
- Chief Executive Officer
Trading Pattern
InsiderAlpha's records for Yin Yan go back to 2024: 3 primary Form 4 filings, an average of 1.0 per year. No transaction on record carries a Rule 10b5-1 flag - the filings look discretionary rather than pre-scheduled, which makes their timing more informative as a signal.
Career & Filing History
Every role Yin Yan has reported on a Form 4, reconstructed from the filings themselves - reporting insiders must state their relationship to the issuer (officer title, director seat, or 10% ownership) on every filing.
- Chairman and CEO, Director, 10% Owner at Marwynn Holdings, Inc. (MWYN) - 1 filing, 2025
- Chief Executive Officer, Director, 10% Owner at Bio Essence Corp (BIOE) - 2 filings, 2024
Recent Transactions
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2025-11-21 | MWYN | Marwynn Holdings, Inc. | S - Open-market sale | 1.78M | $0.51 | $906K |
| 2024-11-18 | BIOE | Bio Essence Corp | S - Open-market sale | 143.8K | $0.57 | $82K |
| 2024-11-18 | BIOE | Bio Essence Corp | S - Open-market sale | 40.0K | $0.64 | $26K |
| 2024-11-18 | BIOE | Bio Essence Corp | S - Open-market sale | 140.0K | $2.48 | $347K |
| 2024-10-10 | BIOE | Bio Essence Corp | S - Open-market sale | 2.0K | $2.35 | $5K |
| 2024-10-10 | BIOE | Bio Essence Corp | S - Open-market sale | 200 | $1.69 | $338 |
| 2024-10-10 | BIOE | Bio Essence Corp | S - Open-market sale | 40.0K | $1.67 | $67K |
| 2024-10-10 | BIOE | Bio Essence Corp | S - Open-market sale | 50.0K | $0.70 | $35K |
Most Active Insiders Right Now
Yin Yan has no recent co-filers at the same companies, so here are the insiders with the largest open-market activity across the market in the last 90 days.
- MetLife Investment Management, LLC - $1600000.00B of FINS open-market activity in the last 90 days
- Magnetar Financial LLC - $16357.48B of CRWV open-market activity in the last 90 days
- Marianne Okland - $18.46B of STNG open-market activity in the last 90 days
- VisionWave Holdings, Inc. - $14.13B of SVRE open-market activity in the last 90 days
- Vanessa Allen Sutherland - $7.44B of PSX open-market activity in the last 90 days
- AI Alpine (Luxembourg) S.a.r.l. - $2.69B of INIO open-market activity in the last 90 days
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
- Caroline Young
- Jeffrey Yu
- George Raymond Zage III
- Payam Zamani
- Mahkam Zanganeh
- A.L. Sarroff Fund, LLC
- ABRAMS CAPITAL MANAGEMENT, L.P.
- Abu Dhabi Investment Authority
Frequently Asked Questions
Who is Yin Yan?
Yin Yan serves as Chairman and CEO of Marwynn Holdings, Inc. (MWYN). Yan has also held reporting roles at Bio Essence Corp (BIOE). Yan has reported 6 insider filings with the SEC since 2024. The most recent filing was in November 2025.…
Has Yin Yan been buying or selling stock?
Recorded transactions: 0 open-market purchases and 8 open-market sales ($1.47M) across all tracked filings.
Where can I see all of Yin Yan's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
Learn More
Open the live Yin Yan profile on InsiderAlpha for real-time alerts, AI-scored trade ideas, and full transaction history.