CLNN insider buying and SEC filings, explained
Clene Inc. · CIK 1822791
Tracked: Forms 3/4/5, 8-K, NT · All filings on sec.gov
Insider activity in the last 12 months
Bought
$217K
Insiders who bought
1
Sold (not marked 10b5-1)
$5.8M
Planned sales (10b5-1)
$0
Insider purchases and sales, last 12 months
| Traded | Type | What was filed | Source |
|---|---|---|---|
| May 11–12, 2026 | Sale | Chidozie Ugwumba (10% owner) sold 95,473 shares indirectly (by entity) between May 11 and May 12 at about $6.33 ($604K). Holdings by entity down 48% to 103,417 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed May 13, 2026 |
| May 1–4, 2026 | Sale | Chidozie Ugwumba (10% owner) sold 78,679 shares indirectly (by entity) between May 1 and May 4 at about $6.74 ($530K). Holdings by entity down 28% to 198,890 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed May 5, 2026 |
| Apr 28–30, 2026 | Sale | Chidozie Ugwumba (10% owner) sold 19,497 shares indirectly (by entity) between Apr 28 and Apr 30 at about $5.78 ($113K). Holdings by entity down 7% to 277,569 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Apr 30, 2026 |
| Apr 20–21, 2026 | Sale | Chidozie Ugwumba (10% owner) sold 65,663 shares indirectly (by entity) between Apr 20 and Apr 21 at about $6.14 ($403K). Holdings by entity down 18% to 297,066 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Apr 22, 2026 |
| Apr 15–17, 2026 | Sale | Chidozie Ugwumba (10% owner) sold 39,162 shares indirectly (by entity) between Apr 15 and Apr 17 at about $6.43 ($252K). Holdings by entity down 10% to 362,729 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Apr 17, 2026 |
| Apr 2, 2026 | Sale | Chidozie Ugwumba (10% owner) sold 24,925 shares indirectly (by entity) at $4.81 ($120K). Holdings by entity down 6% to 401,891 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Apr 6, 2026 |
| Apr 1, 2026 | Sale | Chidozie Ugwumba (10% owner) sold 4,278 shares indirectly (by entity) at $4.97 ($21K). Holdings by entity down 1% to 426,816 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Apr 1, 2026 |
| Mar 27–31, 2026 | Sale | Chidozie Ugwumba (10% owner) sold 100,997 shares indirectly (by entity) between Mar 27 and Mar 31 at about $4.89 ($494K). Holdings by entity down 19% to 431,094 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Mar 31, 2026 |
| Mar 24–26, 2026 | Sale | Chidozie Ugwumba (10% owner) sold 17,909 shares indirectly (by entity) between Mar 24 and Mar 26 at about $5.56 ($100K). Holdings by entity down 3% to 532,091 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Mar 26, 2026 |
| Feb 3, 2026 | Sale | Chidozie Ugwumba (10% owner) sold 5,559 shares indirectly (by entity) at $4.10 ($23K). Holdings by entity down 1% to 550,000 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Feb 5, 2026 |
| Jan 29–Feb 2, 2026 | Sale | Chidozie Ugwumba (10% owner) sold 24,770 shares indirectly (by entity) between Jan 29 and Feb 2 at about $4.23 ($105K). Holdings by entity down 4% to 555,559 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Feb 2, 2026 |
| Jan 26–28, 2026 | Sale | Chidozie Ugwumba (10% owner) sold 19,274 shares indirectly (by entity) between Jan 26 and Jan 28 at about $4.98 ($96K). Holdings by entity down 3% to 580,329 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Jan 28, 2026 |
| Jan 22–23, 2026 | Sale | Chidozie Ugwumba (10% owner) sold 18,221 shares indirectly (by entity) between Jan 22 and Jan 23 at about $5.30 ($97K). Holdings by entity down 3% to 599,603 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Jan 23, 2026 |
| Jan 16–21, 2026 | Sale | Chidozie Ugwumba (10% owner) sold 32,474 shares indirectly (by entity) between Jan 16 and Jan 21 at about $4.97 ($162K). Holdings by entity down 5% to 617,824 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Jan 21, 2026 |
| Jan 13–15, 2026 | Sale | Chidozie Ugwumba (10% owner) sold 58,289 shares indirectly (by entity) between Jan 13 and Jan 15 at about $5.01 ($292K). Holdings by entity down 8% to 650,298 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Jan 16, 2026 |
| Jan 13, 2026 | Purchase (code P) | David J. Matlin (Director) bought 33,333 shares at $6.50 ($217K), reported as a purchase (code P). Holdings up 7% to 477,824 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Jan 13, 2026 |
| Jan 8–12, 2026 | Sale | Chidozie Ugwumba (10% owner) sold 44,975 shares indirectly (by entity) between Jan 8 and Jan 12 at about $5.70 ($256K). Holdings by entity down 6% to 708,587 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Jan 12, 2026 |
| Jan 5–7, 2026 | Sale | Chidozie Ugwumba (10% owner) sold 12,918 shares indirectly (by entity) between Jan 5 and Jan 7 at about $6.04 ($78K). Holdings by entity down 2% to 753,562 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Jan 7, 2026 |
| Dec 31, 2025–Jan 2, 2026 | Sale | Chidozie Ugwumba (10% owner) sold 17,110 shares indirectly (by entity) between Dec 31, 2025 and Jan 2 at about $5.79 ($99K). Holdings by entity down 2% to 766,480 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Jan 2, 2026 |
| Dec 29–30, 2025 | Sale | Chidozie Ugwumba (10% owner) sold 12,234 shares indirectly (by entity) between Dec 29, 2025 and Dec 30, 2025 at about $5.98 ($73K). Holdings by entity down 2% to 783,590 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Dec 31, 2025 |
| Dec 23–26, 2025 | Sale | Chidozie Ugwumba (10% owner) sold 11,671 shares indirectly (by entity) between Dec 23, 2025 and Dec 26, 2025 at about $6.28 ($73K). Holdings by entity down 1% to 795,824 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Dec 30, 2025 |
| Dec 19–22, 2025 | Sale | Chidozie Ugwumba (10% owner) sold 9,949 shares indirectly (by entity) between Dec 19, 2025 and Dec 22, 2025 at about $6.49 ($65K). Holdings by entity down 3% to 383,201 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Dec 23, 2025 |
| Dec 3–18, 2025 | Sale | Chidozie Ugwumba (10% owner) sold 257,795 shares indirectly (by entity) between Dec 3, 2025 and Dec 18, 2025 at about $6.69 ($1.7M). Holdings by entity down 40% to 393,150 shares. Not marked as a 10b5-1 plan trade. | SEC filing Filed Dec 18, 2025 |
48 routine transactions (such as grants, option exercises or tax withholding) are not listed.
Cluster buys
No cluster buys in the last 12 months.
Red flags
No red flags in the last 12 months.
Key events
No key events in the last 12 months.
8-K filings, last 12 months
No 8-K filings in the last 12 months.
Red flags are objective triggers only: the item or form filed, never an opinion.
Follow CLNN in the Insider Ledger app
Get the appA plain-English brief of insider purchases, 8-Ks and red flags at the companies you pick. No account needed.