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NUWE · NASDAQ · Medical - Devices

Nuwellis (NUWE)

Hospital ultrafiltration systems and disposable treatments for fluid overload.

$0.7300

Pre-market−0.00 (−0.40%)

At close$0.7329(−3.21%)

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Breakdown13F · 13D/G · Form 4

Institutions8 holders · as of Mar 31, 2026	0.23%	8.3K shares
Insiders1 holder · as of Jun 11, 2025	0.02%	748 shares
Otherremainder	99.75%	3.64M shares

3.65M company shares as of Sep 3, 2026 · institutions as of Mar 31, 2026 · holders as of their latest filing

Two share counts disagree (3.65M in the company's Sep 3, 2026 report, 92.2K elsewhere); stakes use the report.

Top shareholders13F · 13D/G · Form 4

Holder	Stake	Shares	Evidence
Armistice Capital, LLCInstitution	0.19%	236,200	13Fas of Mar 31, 2026
Geode Capital Management, LLCInstitution	0.03%	44,176	13Fas of Mar 31, 2026
John L. ErbInsiderdirector, 10 percent owner, officer: CEO and President	0.02%	748	Form 4filed Jun 11, 2025 ↗
Tower Research Capital LLC (TRC)Institution	0.00%	5,189	13Fas of Mar 31, 2026
Citigroup IncInstitution	0.00%	5,126	13Fas of Mar 31, 2026
Sbi Securities Co., Ltd.Institution	0.00%	63	13Fas of Mar 31, 2026
UBS Group AGInstitution	0.00%	46	13Fas of Mar 31, 2026
Caitong International Asset Management Co., LtdInstitution	0.00%	4	13Fas of Mar 31, 2026
Ankerstar Wealth, LLCInstitution	0.00%	1	13Fas of Mar 31, 2026
Altium Growth GP, LLCStrategic	—0.30% of class, as filed	—	13G/Afiled Feb 16, 2021 ↗
Bigger Capital Fund L PStrategic	—9.99% of class, as filed	—	13G/Afiled Nov 14, 2019 ↗
Chiang Li FamilyInsider	—13.10% of class, as filed	—	13Gfiled Dec 8, 2017 ↗
Empery Asset Management, LPInstitution	—9.99% of class, as filed	—	13Gfiled Feb 3, 2020 ↗
Heights Capital Management, Inc.Strategic	—8.70% of class, as filed	—	13Gfiled Aug 25, 2020 ↗
Hudson Bay Capital Management LPInstitution	—9.99% of class, as filed	—	13Gfiled Feb 5, 2020 ↗
Intracoastal Capital LLCStrategic	—4.99% of class, as filed	—	13Gfiled Aug 30, 2024 ↗
Lind Global Fund II LPInstitution	—8.10% of class, as filed	—	13Gfiled Oct 20, 2022 ↗
Lind Global Fund III LPInstitution	—6.20% of class, as filed	—	13Gfiled Aug 5, 2026 ↗
Management LPStrategic	—4.90% of class, as filed	—	13G/Afiled Feb 14, 2020 ↗
Orca Capital AGStrategic	—7.00% of class, as filed	—	13Gfiled Aug 7, 2026 ↗
Sabby Management, LLCStrategic	—5.40% of class, as filed	—	13Gfiled Jan 20, 2026 ↗
Nestor Jr. Jaramillo¹Insiderdirector, officer: President and CEO	0.00%	0	Form 4filed Mar 16, 2023 ↗
Lynn Larson Blake²Insiderofficer: Chief Financial Officer	0.00%	0	Form 4filed Oct 28, 2022 ↗
Ki Yong Choi³Insider10 percent owner	0.00%	0	Form 4filed Oct 13, 2017 ↗
Gregory D. Waller⁴Insiderdirector	0.00%	0	Form 4filed Aug 13, 2018 ↗

Last filed Mar 16, 2023; leaving the company requires no filing. Not in the bar.
Last filed Oct 28, 2022; leaving the company requires no filing. Not in the bar.
Last filed Oct 13, 2017; leaving the company requires no filing. Not in the bar.
Last filed Aug 13, 2018; leaving the company requires no filing. Not in the bar.

13F — a manager's quarterly holdings · 13D/13G — an ownership statement filed at 5% or more · Form 4 — an insider's transaction report

Institutions13F, as of Mar 31, 2026

8 holders · 290.8K shares · 2 new positions · 5 increased · 1 reduced · 4 closed

Holder	Shares	% outstanding	Chg q/q	Filed
Armistice Capital, LLC	236.2K	6.48%	+236.2Knew	May 15, 2026
Geode Capital Management, LLC	44.2K	1.21%	+33.8K	May 15, 2026
Tower Research Capital LLC (TRC)	5.2K	0.14%	+3.2K	May 15, 2026
Citigroup Inc	5.1K	0.14%	+5.1K	May 11, 2026
Sbi Securities Co., Ltd.	63	0.00%	0	Apr 28, 2026
UBS Group AG	46	0.00%	−532	May 5, 2026
Caitong International Asset Management Co., Ltd	4	0.00%	+4new	May 11, 2026
Ankerstar Wealth, LLC	1	0.00%	0	May 14, 2026

Ownership statements13D/G · 5% or more, as filed

Holder	% of class	Form	Filed
Erb John L	7.30%	13D	Jun 16, 2025 ↗
Armistice Capital, LLC	7.11%	13G	May 15, 2026 ↗
Orca Capital AG	7.00%	13G	Aug 7, 2026 ↗
Lind Global Fund III LP	6.20%	13G	Aug 5, 2026 ↗
Sabby Management, LLC	5.40%	13G	Jan 20, 2026 ↗

Nuwellis (NUWE)

Breakdown13F · 13D/G · Form 4

Top shareholders13F · 13D/G · Form 4

Institutions13F, as of Mar 31, 2026

Ownership statements13D/G · 5% or more, as filed

Insider tradesForm 4

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