Yan Yin
SEC insider (Form 3/4/5 filer). CIK 0001990397. Chief Executive Officer at Bio Essence Corp (BIOE) and 1 other issuer. 12 reported Form 4/5 transactions since Sep 2024; latest on Nov 19, 2025. Located in LAS VEGAS, NV.
Companies Yan Yin has filed insider reports for
- Bio Essence Corp (BIOE): Director, Officer, 10% Owner, Chief Executive Officer
- Marwynn Holdings, Inc. (MWYN): Director, Officer, 10% Owner, Chairman and CEO
Yan Yin
CIK: 0001990397
Transaction Breakdown
Open Market Buys (P)1 (8.3%)
High conviction signal
Open Market Sales (S)11 (91.7%)
Position reduction
Option Exercises (M)0 (0.0%)
Derivative conversions
Awards (A)0 (0.0%)
Compensation grants
Other (G, F, J, C, D, …)0 (0.0%)
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Discretionary Trading P&L
Holdings
Transaction History (12 total)
- Nov 19, 2025MWYN
Marwynn Holdings, Inc.
SaleIndirect1.8M shares at avg. $0.51$906K - Oct 30, 2024BIOE
Bio Essence Corp
SaleDirect143.8K shares at avg. $0.57$82K - Oct 29, 2024BIOE
Bio Essence Corp
SaleDirect4K shares at avg. $0.64$3K - Oct 28, 2024BIOE
Bio Essence Corp
SaleDirect140K shares at avg. $2.48$347K - Sep 30, 2024BIOE
Bio Essence Corp
SaleDirect2K shares at avg. $2.35$5K - Sep 27, 2024BIOE
Bio Essence Corp
SaleDirect200 shares at avg. $1.69$338 - Sep 26, 2024BIOE
Bio Essence Corp
SaleDirect40K shares at avg. $1.67$67K - Sep 25, 2024BIOE
Bio Essence Corp
SaleDirect50K shares at avg. $0.70$35K - Jul 5, 2024BIOE
Bio Essence Corp
SaleDirect74K shares at avg. $8.94$661K - Jul 3, 2024BIOE
Bio Essence Corp
SaleDirect100K shares at avg. $8.78$878K
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Nov 19, 2025 |  MWYN Marwynn Holdings, Inc. | Sale | 1,777,230 | $0.51 | $906,387 | Indirect |
| Oct 30, 2024 |  BIOE Bio Essence Corp | Sale | 143,845 | $0.57 | $81,992 | Direct |
| Oct 29, 2024 | BIOE Bio Essence Corp | Sale | 4,000 | $0.64 | $2,572 | Direct |
| Oct 28, 2024 | BIOE Bio Essence Corp | Sale | 140,000 | $2.48 | $347,480 | Direct |
| Sep 30, 2024 | BIOE Bio Essence Corp | Sale | 1,990 | $2.35 | $4,677 | Direct |
| Sep 27, 2024 | BIOE Bio Essence Corp | Sale | 200 | $1.69 | $338 | Direct |
| Sep 26, 2024 | BIOE Bio Essence Corp | Sale | 40,000 | $1.67 | $66,800 | Direct |
| Sep 25, 2024 | BIOE Bio Essence Corp | Sale | 50,000 | $0.70 | $35,000 | Direct |
| Jul 5, 2024 | BIOE Bio Essence Corp | Sale | 73,965 | $8.94 | $661,247 | Direct |
| Jul 3, 2024 | BIOE Bio Essence Corp | Sale | 100,000 | $8.78 | $878,000 | Direct |
1-10 of 12 transactions