Clene Inc. (CLNN) Insider Trading & SEC Filings

Updated Jul 16, 2026 · Last SEC filing 2026-06-15

Clene Inc. (CLNN) has filed 16 SEC Form 4 insider transactions in the last 90 days, with the most recent on 2026-06-15. 4 Form 8-K material event filings were reported by CLNN in the last 90 days. 3 Form 144 notices of proposed sale were filed for CLNN stock. InsiderAlpha tracks every CLNN SEC filing — Form 4, Form 144, and 8-K — in real time, including Rule 10b5-1 plan detection.

About Clene Inc. (CLNN)

SEC CIK	0001822791

90-Day SEC Filing Activity

Form 4 filings (90d)	16
Form 8-K filings (90d)	4
Form 144 notices (90d)	3
Latest Form 4 filing	2026-06-15

Recent CLNN Insider Transactions (Form 4)

Date	Insider	Role	Transaction	Shares	Price	Value	Filing
2026-05-12	Ugwumba Chidozie	10% Owner	S — Open-market sale	73.3K	$6.20	$454K	SEC
2026-05-11	Ugwumba Chidozie	10% Owner	S — Open-market sale	22.2K	$6.75	$150K	SEC
2026-05-04	Ugwumba Chidozie	10% Owner	S — Open-market sale	72.9K	$6.80	$496K	SEC
2026-05-01	Ugwumba Chidozie	10% Owner	S — Open-market sale	5.8K	$6.01	$35K	SEC
2026-04-30	Ugwumba Chidozie	10% Owner	S — Open-market sale	5.7K	$6.08	$35K	SEC
2026-04-29	Ugwumba Chidozie	10% Owner	S — Open-market sale	12.2K	$5.63	$69K	SEC
2026-04-28	Ugwumba Chidozie	10% Owner	S — Open-market sale	1.6K	$5.90	$9K	SEC
2026-04-21	Ugwumba Chidozie	10% Owner	S — Open-market sale	61.3K	$6.14	$377K	SEC
2026-04-20	Ugwumba Chidozie	10% Owner	S — Open-market sale	4.3K	$6.12	$26K	SEC
2026-04-17	Ugwumba Chidozie	10% Owner	S — Open-market sale	25.0K	$6.43	$161K	SEC
2026-04-16	Ugwumba Chidozie	10% Owner	S — Open-market sale	7.7K	$6.40	$50K	SEC
2026-04-15	Ugwumba Chidozie	10% Owner	S — Open-market sale	6.4K	$6.48	$41K	SEC
2026-04-02	Ugwumba Chidozie	10% Owner	S — Open-market sale	24.9K	$4.81	$120K	SEC
2026-04-01	Ugwumba Chidozie	10% Owner	S — Open-market sale	4.3K	$4.97	$21K	SEC
2026-03-31	Ugwumba Chidozie	10% Owner	S — Open-market sale	68.0K	$4.88	$332K	SEC

All transactions sourced from SEC EDGAR Form 4 filings for Clene Inc. (CLNN). Updated in real time as new filings are submitted to the SEC.

Most-Active CLNN Insiders — Last 90 Days

Insider	Form 4 filings	Total transaction value
Ugwumba Chidozie	12	$1.90M
WILCOX REED N	2	—
MATLIN DAVID J	2	—
Desai Arjun JJ	2	—
Gay Jonathon	2	—

Recent CLNN Form 8-K Material Events

2026-05-22 — Item 1.01, 5.02, 5.07, 9.01 [SEC]
2026-05-14 — Item 1.01, 2.02, 9.01 [SEC]
2026-05-05 — Item 1.01, 8.01, 9.01 [SEC]
2026-05-04 — Item 7.01, 8.01, 9.01 [SEC]
2026-03-16 — Item 1.01, 9.01 · Contract · positive [SEC]
Clene Inc. entered into a Year 3 subaward agreement with New York University for up to $8.0 million under the NIH's four-year, $45.1 million grant to support an Expanded Access Program for CNM-Au8® treatment of amyotrophic lateral sclerosis (ALS). This represents the third year o

Recent CLNN Form 144 Notices of Proposed Sale

2026-05-11 — — [SEC]
2026-05-04 — — [SEC]
2026-04-28 — — [SEC]

Form 144 must be filed before insiders sell restricted or control stock above SEC thresholds. A cluster of Form 144 notices often precedes a wave of insider distribution.

Recent Insider Filings

2026-06-15 — Mortenson Mark (Chief Science Officer)
2026-06-15 — Etherington Robert Dee (President & CEO)
2026-06-15 — BROWN MORGAN R (Chief Financial Officer)
2026-05-22 — McLaughlin Vallerie (Director)
2026-05-22 — Desai Arjun JJ (Director)

Form 4 Transaction Code Reference

SEC Form 4 transactions are reported with a one-letter code indicating the type of transaction. Common codes you'll see in CLNN insider filings:

P	Open-market purchase by the insider
S	Open-market sale by the insider
A	Grant, award, or other acquisition from the issuer
M	Exercise or conversion of derivative security (e.g. options)
F	Payment of exercise price or tax liability via share withholding
G	Bona-fide gift of securities
D	Disposition to the issuer (e.g. share buyback participation)
J	Other acquisition or disposition
X	Exercise of in-the-money or at-the-money derivative security
C	Conversion of derivative security
V	Transaction voluntarily reported earlier than required

CLNN Insider Trading — FAQ

What is the latest insider trade for CLNN?: Clene Inc. (CLNN) had 16 insider filings in the last 90 days, with the most recent on 2026-06-15. InsiderAlpha tracks every Form 4, 10-K, 10-Q, and 8-K filing in real time.
How many insiders are buying CLNN stock?: 0 insider purchases of CLNN were filed in the last 90 days.
How many insiders are selling CLNN stock?: 0 insider sales of CLNN were filed in the last 90 days.
Where can I see CLNN SEC filings (Form 4, 10-K, 10-Q, 8-K)?: InsiderAlpha aggregates every CLNN SEC filing — Form 4 insider transactions, 10-K and 10-Q quarterly reports, and 8-K material event disclosures — in one timeline.

Learn More

Open the live CLNN dashboard on InsiderAlpha for real-time alerts, charting, and full historical filing search.