Comparable stake leader
Alison Mosca
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001822791.
Comparable stake leader
Alison Mosca
Disclosed value leader
Chidozie Ugwumba
Comparable rows
36/50
Latest evidence
11 Jun 2026
Ownership snapshot
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Quick read
36 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Alison Mosca |
3/4/5
13D/G
Director
|
13%
from 13D/G
|
$3,005,527
708,315 shares
mixed-class rows
|
— | 21 May 2026 |
| Vivo Opportunity Fund Holdings, L.P. |
13D/G
|
10%
|
—
1,886,469 shares
|
$0 | 31 Mar 2026 |
| Chidozie Ugwumba |
13D/G
3/4/5
Ugwumba Chidozie · 10%+ Owner
|
9.7%
|
$7,782,169
1,351,071 shares
|
-$3,251,975 | 11 May 2026 |
| 4LIFE RESEARCH LLC |
13D/G
David Lisonbee
|
6.5%
|
$84,921
555,328 shares
|
$0 | 20 Dec 2024 |
| ARMISTICE CAPITAL, LLC |
13D/G
|
5%
|
$1,257,303
419,101 shares
|
$0 | 31 Dec 2024 |
| AWM Investment Company, Inc. |
13D/G
|
4.7%
|
$3,012,500
500,000 shares
|
$0 | 30 Sep 2025 |
| General Resonance LLC |
3/4/5
10%+ Owner
|
5.1%
|
$3,762,515
704,591 shares
|
-$18,161 | 21 Aug 2025 |
| Boxer Capital Management, LLC |
13F
Company
|
3.4%
|
$2,354,149
477,515 shares
|
— | 31 Mar 2026 |
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Net insider flow leans to selling over the last 12 months. Net value: -$5,582,658.
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 298,474 | $0 | $1,902,330 | -$1,902,330 |
| 3-6 | 33,333 | 355,609 | $216,664 | $1,789,734 | -$1,573,070 |
| 6-9 | 0 | 317,739 | $0 | $2,089,096 | -$2,089,096 |
| 9-12 | 0 | 3,401 | $0 | $18,161 | -$18,161 |
Reporting owners
Showing 1-17 of 17 reporting-owner rows connected to Clene Inc.. Open a relationship link for the CIK-to-CIK filing trail.
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| General Resonance LLC | 10%+ Owner | $3,762,515 | -$18,161 | -0.48% | Filing P/S | 21 Aug 2025 |
| David J. Matlin | Director | $3,105,856 | +$216,665 | +7.5% | Filing P/S | 21 May 2026 |
| Alison Mosca | Director | $3,005,527 | Mixed | 21 May 2026 | ||
| Chidozie Ugwumba | 10%+ Owner | $641,185 | -$5,781,161 | -90% | Filing P/S | 01 May 2026 |
| Morgan R. Brown | Chief Financial Officer | $53,800 | Mixed | 11 Jun 2026 | ||
| Robert Glanzman | Chief Medical Officer | $4,331 | Mixed | 16 May 2022 | ||
| Shalom Jacobovitz | Director | Mixed | 21 May 2026 | |||
| Matthew Kiernan | Director | Mixed | 21 May 2026 | |||
| Arjun Jj Desai | Director | Mixed | 21 May 2026 | |||
| Reed N. Wilcox | Director | Mixed | 21 May 2026 | |||
| Mark Mortenson | Chief Science Officer | Mixed | 11 Jun 2026 | |||
| Robert Dee Etherington | President & CEO, Director | Mixed | 11 Jun 2026 | |||
| Fiona Costello | Director | Mixed | 18 May 2021 | |||
| Jonathon Gay | Director | Mixed | 21 May 2026 | |||
| Tae Heum Jeong | Chief Finance Officer | Mixed | 04 Nov 2021 | |||
| Vallerie McLaughlin | Director | Mixed | 21 May 2026 | |||
| John Henry Stevens | Director | Mixed | 18 Sep 2023 |
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Mark Mortenson | CLNN | stock option | Award | 45,000 | 45,000 | 11 Jun 2026 | Direct | |||
| Robert Dee Etherington | CLNN | stock option | Award | 65,000 | 65,000 | 11 Jun 2026 | Direct | |||
| Morgan R. Brown | CLNN | stock option | Award | 15,000 | 15,000 | 11 Jun 2026 | Direct | |||
| Vallerie McLaughlin | CLNN | stock option | Award | 3,564 | 2,064 | 21 May 2026 | Direct | |||
| Arjun Jj Desai | CLNN | stock option | Award | 3,658 | 2,158 | 21 May 2026 | Direct | |||
| Alison Mosca | CLNN | stock option | Award | 4,361 | 2,861 | 21 May 2026 | Direct | |||
| David J. Matlin | CLNN | stock option | Award | 5,159 | 3,659 | 21 May 2026 | Direct | |||
| Shalom Jacobovitz | CLNN | stock option | Award | 4,291 | 2,791 | 21 May 2026 | Direct | |||
| Matthew Kiernan | CLNN | stock option | Award | 3,376 | 1,876 | 21 May 2026 | Direct | |||
| Jonathon Gay | CLNN | stock option | Award | 3,728 | 2,228 | 21 May 2026 | Direct | |||
| Reed N. Wilcox | CLNN | stock option | Award | 3,564 | 2,064 | 21 May 2026 | Direct | |||
| Chidozie Ugwumba | CLNN | Common Stock | Sale | -41.5% | $454,435 | $6.20 | -73,296 | 103,417 | 12 May 2026 | By SymBiosis II, LLC |
| Chidozie Ugwumba | CLNN | Common Stock | Sale | -11.2% | $149,695 | $6.75 | -22,177 | 176,713 | 11 May 2026 | By SymBiosis II, LLC |
| Chidozie Ugwumba | CLNN | Common Stock | Sale | -26.8% | $495,611 | $6.80 | -72,884 | 198,890 | 04 May 2026 | By SymBiosis II, LLC |
| Chidozie Ugwumba | CLNN | Common Stock | Sale | -2.09% | $34,828 | $6.01 | -5,795 | 271,774 | 01 May 2026 | By SymBiosis II, LLC |
| Chidozie Ugwumba | CLNN | Common Stock | Sale | -2.02% | $34,875 | $6.08 | -5,736 | 277,569 | 30 Apr 2026 | By SymBiosis II, LLC |
| Chidozie Ugwumba | CLNN | Common Stock | Sale | -4.12% | $68,517 | $5.63 | -12,170 | 283,305 | 29 Apr 2026 | By SymBiosis II, LLC |
| Chidozie Ugwumba | CLNN | Common Stock | Sale | -0.54% | $9,387 | $5.90 | -1,591 | 295,475 | 28 Apr 2026 | By SymBiosis II, LLC |
| Chidozie Ugwumba | CLNN | Common Stock | Sale | -17.1% | $376,658 | $6.14 | -61,345 | 297,066 | 21 Apr 2026 | By SymBiosis II, LLC |
| Chidozie Ugwumba | CLNN | Common Stock | Sale | -1.19% | $26,426 | $6.12 | -4,318 | 358,411 | 20 Apr 2026 | By SymBiosis II, LLC |
| Chidozie Ugwumba | CLNN | Common Stock | Sale | -6.46% | $161,007 | $6.43 | -25,040 | 362,729 | 17 Apr 2026 | By SymBiosis II, LLC |
| Chidozie Ugwumba | CLNN | Common Stock | Sale | -1.96% | $49,587 | $6.40 | -7,748 | 387,769 | 16 Apr 2026 | By SymBiosis II, LLC |
| Chidozie Ugwumba | CLNN | Common Stock | Sale | -1.59% | $41,304 | $6.48 | -6,374 | 395,517 | 15 Apr 2026 | By SymBiosis II, LLC |
| Chidozie Ugwumba | CLNN | Common Stock | Sale | -5.84% | $119,889 | $4.81 | -24,925 | 401,891 | 02 Apr 2026 | By SymBiosis II, LLC |
| Chidozie Ugwumba | CLNN | Common Stock | Sale | -0.99% | $21,262 | $4.97 | -4,278 | 426,816 | 01 Apr 2026 | By SymBiosis II, LLC |
| Chidozie Ugwumba | CLNN | Common Stock | Sale | -13.6% | $331,796 | $4.88 | -67,991 | 431,094 | 31 Mar 2026 | By Symbiosis II, LLC |
| Chidozie Ugwumba | CLNN | Common Stock | Sale | -3.02% | $79,234 | $5.10 | -15,536 | 499,085 | 30 Mar 2026 | By SymBiosis II, LLC |
| Chidozie Ugwumba | CLNN | Common Stock | Sale | -3.28% | $82,982 | $4.75 | -17,470 | 514,621 | 27 Mar 2026 | By SymBiosis II, LLC |
| Chidozie Ugwumba | CLNN | Common Stock | Sale | -0.99% | $28,723 | $5.40 | -5,319 | 532,091 | 26 Mar 2026 | By SymBiosis II, LLC |
| Chidozie Ugwumba | CLNN | Common Stock | Sale | -1.3% | $39,039 | $5.50 | -7,098 | 537,410 | 25 Mar 2026 | By SymBiosis II, LLC |
| Chidozie Ugwumba | CLNN | Common Stock | Sale | -1% | $31,744 | $5.78 | -5,492 | 544,508 | 24 Mar 2026 | By SymBiosis II, LLC |
| Vallerie McLaughlin | CLNN | stock option | Award | 3,030 | 3,030 | 19 Feb 2026 | Direct | |||
| Reed N. Wilcox | CLNN | stock option | Award | 3,306 | 3,306 | 19 Feb 2026 | Direct | |||
| Alison Mosca | CLNN | stock option | Award | 4,201 | 4,201 | 19 Feb 2026 | Direct | |||
| David J. Matlin | CLNN | stock option | Award | 5,372 | 5,372 | 19 Feb 2026 | Direct | |||
| Arjun Jj Desai | CLNN | stock option | Award | 3,168 | 3,168 | 19 Feb 2026 | Direct | |||
| Shalom Jacobovitz | CLNN | stock option | Award | 4,098 | 4,098 | 19 Feb 2026 | Direct | |||
| Jonathon Gay | CLNN | stock option | Award | 3,271 | 3,271 | 19 Feb 2026 | Direct | |||
| Matthew Kiernan | CLNN | stock option | Award | 2,755 | 2,755 | 19 Feb 2026 | Direct | |||
| Chidozie Ugwumba | CLNN | Common Stock | Sale | -1% | $22,792 | $4.10 | -5,559 | 550,000 | 03 Feb 2026 | By Symbiosis II, LLC |
| Chidozie Ugwumba | CLNN | Common Stock | Sale | -0.68% | $15,352 | $4.04 | -3,800 | 555,559 | 02 Feb 2026 | By SymBiosis II, LLC |
| Chidozie Ugwumba | CLNN | Common Stock | Sale | -1.01% | $23,483 | $4.13 | -5,686 | 559,359 | 30 Jan 2026 | By Symbiosis II, LLC |
| Chidozie Ugwumba | CLNN | Common Stock | Sale | -2.63% | $66,027 | $4.32 | -15,284 | 565,045 | 29 Jan 2026 | By Symbiosis II, LLC |
| Chidozie Ugwumba | CLNN | Common Stock | Sale | -1.48% | $42,800 | $4.91 | -8,717 | 580,329 | 28 Jan 2026 | By SymBiosis II, LLC |
| Chidozie Ugwumba | CLNN | Common Stock | Sale | -0.7% | $21,026 | $5.08 | -4,139 | 589,046 | 27 Jan 2026 | By Symbiosis II, LLC |
| Chidozie Ugwumba | CLNN | Common Stock | Sale | -1.07% | $32,218 | $5.02 | -6,418 | 593,185 | 26 Jan 2026 | By Symbiosis II, LLC |
| Chidozie Ugwumba | CLNN | Common Stock | Sale | -0.92% | $29,280 | $5.27 | -5,556 | 599,603 | 23 Jan 2026 | By Symbiosis II, LLC |
| Chidozie Ugwumba | CLNN | Common Stock | Sale | -2.05% | $67,378 | $5.32 | -12,665 | 605,159 | 22 Jan 2026 | By Symbiosis II, LLC |
| Mark Mortenson | CLNN | stock option | Award | 75,000 | 75,000 | 22 Jan 2026 | Direct | |||
| Robert Dee Etherington | CLNN | stock option | Award | 75,000 | 75,000 | 22 Jan 2026 | Direct |