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Delisting risk

LIQT · NASDAQ · Industrial - Pollution & Treatment Controls

LiqTech International (LIQT)

Silicon-carbide filtration systems and components for demanding water and diesel exhaust applications.

$0.5700

Pre-market−0.00 (−0.45%)

At close$0.5726(−0.54%)

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Breakdown13F · 13D/G · Form 4

Institutions15 holders · as of Mar 31, 2026	38.82%	3.86M shares
Insiders9 holders · as of Aug 19, 2026	31.34%	3.11M shares
Otherremainder	29.84%	2.97M shares

9.94M company shares as of Aug 21, 2026 · institutions as of Mar 31, 2026 · holders as of their latest filing

Two share counts disagree (32.95M in the company's Sep 3, 2026 report, 9.94M elsewhere); stakes use the report.

Top shareholders13F · 13D/G · Form 4

Holder	Stake	Shares	Evidence
Bleichroeder LPInstitution	32.02%	3.18M	13Fas of Mar 31, 2026
Marathon Micro Fund, LPInstitution	30.19%	3.00M	13Gfiled Jun 17, 2026 ↗
Alyeska Investment Group, L.P.Institution	20.13%	2.00M	13Gfiled Aug 14, 2026 ↗
Laurence W. Lytton^1,2Insider10 percent owner	10.06%	999,440	13Gfiled Nov 14, 2025 ↗
Andrews BenInsider	8.58%	852,600	13Gfiled Feb 11, 2025 ↗
Alexander J. BuehlerInsiderdirector	4.71%	467,623	Form 4filed Jan 13, 2025 ↗
Fei ChenInsiderdirector, officer: Chief Executive Officer	4.21%	417,898	Form 4filed Jan 13, 2026 ↗
Morgan StanleyInstitution	3.11%	309,303	13Fas of Mar 31, 2026
Peyton BoswellInsiderdirector	1.22%	121,305	Form 4filed Jan 13, 2025 ↗
David KowalczykInsiderofficer: CFO and COO	0.89%	88,779	Form 4filed Jan 13, 2026 ↗
Richard A. MeeusenInsiderdirector	0.68%	67,281	Form 4filed Jan 13, 2025 ↗
Clear Harbor Asset Management, LLCInstitution	0.61%	60,756	13Fas of Mar 31, 2026
Hightower Advisors, LLCInstitution	0.61%	60,432	13Fas of Mar 31, 2026
Geode Capital Management, LLCInstitution	0.60%	59,235	13Fas of Mar 31, 2026
Robert WowkInsiderdirector	0.50%	50,000	Form 4filed Aug 19, 2026 ↗
Vanguard Capital Management LLCInstitution	0.49%	49,175	13Fas of Mar 31, 2026
Martin KunzInsiderdirector	0.49%	48,918	Form 4filed Jan 13, 2025 ↗
Wealthtrust Axiom LLCInstitution	0.46%	46,016	13Fas of Mar 31, 2026
Mesirow Financial Investment Management, Inc.Institution	0.26%	25,737	13Fas of Mar 31, 2026
Vanguard Fiduciary Trust CoInstitution	0.22%	21,970	13Fas of Mar 31, 2026
Mission Wealth Management, LPInstitution	0.19%	18,750	13Fas of Mar 31, 2026
Susquehanna International Group, LLPInstitution	0.17%	16,629	13Fas of Mar 31, 2026
BlackRock, Inc.Institution	0.06%	5,480	13Fas of Mar 31, 2026
Tower Research Capital LLC (TRC)Institution	0.01%	1,265	13Fas of Mar 31, 2026
UBS Group AGInstitution	0.00%	405	13Fas of Mar 31, 2026

Laurence W. Lytton's transaction reports restate only vehicles that traded; the 2025 ownership statement (999.4K) is used instead.
Laurence W. Lytton reports a block also reported by Marathon Micro Fund, LP; it is counted once, under Marathon Micro Fund, LP.

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

15 holders · 3.86M shares · 3 new positions · 6 increased · 4 reduced · 4 closed

Holder	Shares	% outstanding	Chg q/q	Filed
Bleichroeder LP	3.18M	32.02%	0	May 14, 2026
Morgan Stanley	309.3K	3.11%	+30.0K	May 15, 2026
Clear Harbor Asset Management, LLC	60.8K	0.61%	−19	May 5, 2026
Hightower Advisors, LLC	60.4K	0.61%	0	May 5, 2026
Geode Capital Management, LLC	59.2K	0.60%	+17.7K	May 15, 2026
Vanguard Capital Management LLC	49.2K	0.49%	+49.2Knew	May 15, 2026
Wealthtrust Axiom LLC	46.0K	0.46%	−8.7K	May 11, 2026
Mesirow Financial Investment Management, Inc.	25.7K	0.26%	+11.9K	Apr 21, 2026

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

Holder	% of class	Shares	Form	Filed
Bleichroeder LPincl. Bleichroeder Holdings LLC	33.70%	3.18M		Nov 19, 2024 ↗
Lytton Laurence W	9.99%	999.4K	13G	Nov 14, 2025 ↗
Marathon Micro Fund, LP	9.10%	3.00M	13G	Jun 17, 2026 ↗
Andrews Ben	9.00%	852.6K	13G	Feb 11, 2025 ↗
Alyeska Investment Group, L.P.	6.68%	2.00M	13G	Aug 14, 2026 ↗

Insider tradesForm 4

Latest trades

Date	Insider	Type	Shares	Avg price	Owned after
Jun 5, 2026	Robert Wowkdirector	Purchase	50,000	$1.00	50,000
Jun 5, 2026	Bleichroeder LP10 percent owner	Purchase	700,000	$1.00	3,882,239

CongressHouse and Senate disclosures

Not reported.