NKGen Biotech, Inc.
NKGNDelisted Jul 17, 2025- Industry
- Biological Products, (No Diagnostic Substances)
- SEC CIK
- 0001845459
NKGen Biotech, Inc. was delisted on Jul 17, 2025; its insiders filed their last Form 4 on Jun 2, 2025; no institution reported holding it in 13F filings for Q2 2025; no superinvestor held it.
Open-market trades, last 90 days
Open-market purchases (P) and sales (S) by NKGen Biotech, Inc. insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.
- Open-market buys
- 0 filings
- Open-market sells
- 0 filings
- Insiders trading
- 0
- Net value
- $0
- Purchases minus sales
Insider roster
Directors, officers and 10% owners who have filed a Form 4 for NKGen Biotech, Inc., current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.
| Name | Title | Last reported holding | Last filing | Filings, past year |
|---|---|---|---|---|
| Cherng Peggy | 10% Owner | 21,752,885 | Jun 2, 2025 | 0 |
| CFIC-2015 NV Family Investments, LLC | 10% Owner | 21,752,885 | Jun 2, 2025 | 0 |
| Cherng Andrew Jin-Chan | 10% Owner | 21,752,885 | Jun 2, 2025 | 0 |
| Song Paul Y. | Chief Executive Officer | 21,020,846 | May 7, 2025 | 0 |
| Graf James A | Interim CFO | 2,082,507 | Dec 26, 2024 | 0 |
| Graf Acquisition Partners IV LLC | 10% Owner | 2,082,507 | Dec 26, 2024 | 0 |
| Scott Kathleen D. | Director | – | Dec 10, 2024 | 0 |
| Klowden Michael | Director | – | Dec 10, 2024 | 0 |
| Gottardis Marco | Director | – | Jul 18, 2024 | 0 |
| Gagnon Pierre | Chief Operating Officer | – | Feb 14, 2024 | 0 |
| Kim Yong Man | CSO and CIO | – | Feb 14, 2024 | 0 |
| Park Sangwoo | Director, 10% Owner, Other: See Remarks | 10,120,612Indirect | Dec 15, 2023 | 0 |
| NKMAX Co., Ltd. | 10% Owner | 10,120,612Indirect | Dec 15, 2023 | 0 |
Insider trades
Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Jun 2, 2025 (view filing)12:11 PM ET | May 27 | 6 daysLate | Cherng Peggy and 2 others10% Owner | PPurchase | +19.7M | $0.1271 | +$2.50M | +944.1%21.8M after | |
| Jun 2, 2025 (view filing)12:11 PM ET | May 27 | 6 daysLate | Cherng Peggy and 2 others10% Owner | PPurchase | +39.3M | $0.1271 | +$5.00M | –39.3M after | Derivative |
| May 7, 2025 (view filing)4:05 PM ET | May 5 | 2 days | Song Paul Y.Chief Executive Officer | PPurchase | +20.8M | $0.1271 | +$2.65M | +12,184.2%21.0M after | |
| May 7, 2025 (view filing)4:05 PM ET | May 5 | 2 days | Song Paul Y.Chief Executive Officer | PPurchase | +41.7M | $0.1271 | +$5.30M | –41.7M after | Derivative |
| Dec 7, 2023 (view filing) | Dec 6-7 | 1 day | Song Paul Y.Chief Executive Officer | PPurchase | +151.36 | $3.30 | +$500.24 | +0.1%171.1K after | 2 lots |
| Dec 5, 2023 (view filing)3:50 PM ET | Dec 1-4 | 4 days | Graf James A and 1 otherInterim CFO | PPurchase | +670 | $3.24 | +$2.17K | +2,913.0%693 after | 2 lots |
| Dec 5, 2023 (view filing) | Dec 4-5 | 1 day | Song Paul Y.Chief Executive Officer | PPurchase | +267.95 | $3.17 | +$849.95 | +0.2%171.0K after | 2 lots |
| Nov 28, 2023 (view filing) | Nov 27 | 1 day | Song Paul Y.Chief Executive Officer | PPurchase | +243.65 | $2.88 | +$700.6 | +0.1%170.7K after | 2 lots |
| Nov 22, 2023 (view filing)5:55 PM ET | Nov 20-21 | 2 days | Graf James A and 1 otherInterim CFO | PPurchase | +23 | $2.93 | +$67.3 | New position23 after | 2 lots |
| Nov 22, 2023 (view filing) | Nov 21-22 | 1 day | Song Paul Y.Chief Executive Officer | PPurchase | +152.63 | $2.82 | +$430 | +0.1%170.5K after | 2 lots |