CLNN · NASDAQ · Biotechnology

Clene (CLNN)

Develops CNM-Au8, an investigational oral therapy for ALS and multiple sclerosis.

$4.51
vs last close−0.03 (−0.58%)

13F · 13D/G · Form 4

Institutions24.76%3.18M shares
33 holders · as of Jun 30, 2026
Insiders34.08%4.38M shares
5 holders · as of Sep 18, 2026
Strategic holders5.48%704.6K shares
1 holder · as of Aug 21, 2025
Other35.68%4.58M shares
remainder

12.85M company shares as of Sep 22, 2026 · institutions as of Jun 30, 2026 · holders as of their latest filing

13F · 13D/G · Form 4

HolderStakeSharesDate
Alison Mosca1Insiderdirector, 10 percent owner
15.80%1.83Mfiled Sep 18, 2026
Chidozie Ugwumba2Insider10 percent owner
10.52%1.35Mfiled May 15, 2026
Empery Asset Management, LPInstitution
7.13%916,532as of Jun 30, 2026
David J. MatlinInsiderdirector
7.10%912,275filed Sep 18, 2026
General Resonance LLCStrategic10 percent owner
5.48%704,591filed Aug 21, 2025
Scoggin Management LPInstitution
4.67%600,000as of Jun 30, 2026
Boxer Capital Management, LLCInstitution
3.72%477,515as of Jun 30, 2026
Ensign Peak Advisors, IncInstitution
2.71%348,062as of Jun 30, 2026
Vanguard Capital Management LLCInstitution
2.60%333,706as of Jun 30, 2026
Geode Capital Management, LLCInstitution
0.80%102,215as of Jun 30, 2026
BlackRock, Inc.Institution
0.48%61,559as of Jun 30, 2026
Vanguard Fiduciary Trust CoInstitution
0.45%57,765as of Jun 30, 2026
Robert Dee EtheringtonInsiderdirector, officer: President & CEO
0.44%56,029filed Sep 18, 2026
Lunt Capital Management, Inc.Institution
0.41%52,260as of Jun 30, 2026
Parsons Capital Management Inc/RIInstitution
0.29%37,243as of Jun 30, 2026
Peak6 LLCInstitution
0.23%30,012as of Jun 30, 2026
State Street CorpInstitution
0.23%29,801as of Jun 30, 2026
Mark MortensonInsiderofficer: Chief Science Officer
0.23%28,949filed Oct 1, 2024
Morgan StanleyInstitution
0.15%19,858as of Jun 30, 2026
Northern Trust CorpInstitution
0.15%19,723as of Jun 30, 2026
HRT Financial LPInstitution
0.14%18,321as of Jun 30, 2026
Adar1 Capital Management, LLCInstitution
0.12%15,000as of Jun 30, 2026
SRS Capital Advisors, Inc.Institution
0.09%11,140as of Jun 30, 2026
Penn Davis Mcfarland IncInstitution
0.09%11,000as of Jun 30, 2026
Jane Street Group, LLCInstitution
0.08%10,203as of Jun 30, 2026
  1. Alison Mosca's transaction reports restate only vehicles that traded; the 2026 ownership statement (1.83M) plus the 198.2K net shares acquired since is used instead.
  2. Chidozie Ugwumba's transaction reports restate only vehicles that traded; the 2026 ownership statement (1.35M) is used instead.

13F, as of Jun 30, 2026

33 holders · 3.18M shares · 7 new positions · 17 increased · 4 reduced · 3 closed

HolderShares% outstandingChg q/qFiled
Empery Asset Management, LP916.5K7.13%+916.5KnewAug 11, 2026
Scoggin Management LP600.0K4.67%+300.0KAug 14, 2026
Boxer Capital Management, LLC477.5K3.72%0Aug 14, 2026
Ensign Peak Advisors, Inc348.1K2.71%+90.2KAug 14, 2026
Vanguard Capital Management LLC333.7K2.60%+25.5KAug 13, 2026
Geode Capital Management, LLC102.2K0.80%+6.3KAug 12, 2026
BlackRock, Inc.61.6K0.48%+27.8KAug 7, 2026
Vanguard Fiduciary Trust Co57.8K0.45%+14.1KAug 13, 2026

13D/G · 5% or more, as filed

Holder% of classSharesFormFiled
Alison Mosca13.00%1.83M13GMay 14, 2026
Vivo Opportunity Fund Holdings, L.P.9.99%1.89M13GMay 12, 2026
Ugwumba Chidozie9.70%1.35M13GMay 15, 2026
Steven Boydincl. Armistice Capital, LLC8.77%700.0KNov 14, 2024
Empery Asset Management, LP7.17%916.5K13GAug 4, 2026

Form 4

Latest trades

DateInsiderTypeSharesAvg priceOwned after
May 12, 2026
Chidozie Ugwumba10 percent owner
Sale73,296$6.20103,417
May 11, 2026
Chidozie Ugwumba10 percent owner
Sale22,177$6.75176,713
May 4, 2026
Chidozie Ugwumba10 percent owner
Sale72,884$6.80198,890
May 1, 2026
Chidozie Ugwumba10 percent owner
Sale5,795$6.01271,774
Apr 30, 2026
Chidozie Ugwumba10 percent owner
Sale5,736$6.08277,569
Apr 29, 2026
Chidozie Ugwumba10 percent owner
Sale12,170$5.63283,305
Apr 28, 2026
Chidozie Ugwumba10 percent owner
Sale1,591$5.90295,475
Apr 21, 2026
Chidozie Ugwumba10 percent owner
Sale61,345$6.14297,066
Apr 20, 2026
Chidozie Ugwumba10 percent owner
Sale4,318$6.12358,411
Apr 17, 2026
Chidozie Ugwumba10 percent owner
Sale25,040$6.43362,729

House and Senate disclosures

Not reported.