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AZTR · AMEX · Biotechnology

Azitra (AZTR)

Develops engineered skin bacteria and proteins for dermatology, cosmetic ingredients, and biotechnology tools.

$0.1764
Pre-market+0.00 (+0.46%)
At close$0.1756(−0.62%)

Breakdown13F · 13D/G · Form 4

Institutions7 holders · as of Mar 31, 20260.89%540.5K shares
Insiders1 holder · as of Jun 24, 20268.95%5.42M shares
Otherremainder90.16%54.64M shares

60.60M company shares as of Sep 3, 2026 · institutions as of Mar 31, 2026 · holders as of their latest filing

Two share counts disagree (60.60M in the company's Sep 3, 2026 report, 10.74M elsewhere); stakes use the report.

Top shareholders13F · 13D/G · Form 4

HolderStakeSharesEvidence
Nantahala Capital Management, LLCInstitution
10.69%6.48M13Gfiled Aug 14, 2026
Nantahala Capital Partners Limited PartnershipInstitution
8.99%5.45M13Gfiled Aug 14, 2026
Salva Francisco D.Insider
8.95%5.42M13Dfiled Jun 24, 2026
Geode Capital Management, LLCInstitution
0.78%469,87813Fas of Mar 31, 2026
UBS Group AGInstitution
0.05%30,20513Fas of Mar 31, 2026
Stonex Group Inc.Institution
0.04%22,46413Fas of Mar 31, 2026
Tower Research Capital LLC (TRC)Institution
0.02%15,08513Fas of Mar 31, 2026
Citigroup IncInstitution
0.00%1,70513Fas of Mar 31, 2026
Dauntless Investment Group, LLCInstitution
0.00%1,00013Fas of Mar 31, 2026
FMR LLCInstitution
0.00%15013Fas of Mar 31, 2026
Aaron Glenn Louis FletcherInsider
56.90% of class, as filed13Dfiled Jul 3, 2023
Alpha 18 Inc.Strategic
5.20% of class, as filed13Gfiled Feb 26, 2024
Alumni Capital LPInstitution
9.99% of class, as filed13Gfiled Dec 19, 2025
Ayrton Capital LLCInstitution
9.99% of class, as filed13Gfiled May 14, 2025
Bayer US Holding LPInstitution
10.80% of class, as filed13Gfiled Feb 12, 2024
Heights Capital Management, Inc.Strategic
8.00% of class, as filed13Gfiled Aug 1, 2024
L1 Capital Global Opportunities Master Fund, Ltd.Institution
9.99% of class, as filed13Gfiled Jul 29, 2024
Laurence W. LyttonInsider
11.00% of class, as filed13Gfiled Feb 27, 2024
Stonepine Capital Management, LLCStrategic
9.90% of class, as filed13Gfiled Jun 22, 2026

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

Institutions13F, as of Mar 31, 2026

7 holders · 540.5K shares · 4 new positions · 7 increased · 0 reduced · 6 closed

HolderShares% outstandingChg q/qFiled
Geode Capital Management, LLC469.9K0.78%+392.3KMay 15, 2026
UBS Group AG30.2K0.05%+29.2KMay 5, 2026
Stonex Group Inc.22.5K0.04%+22.5KnewMay 14, 2026
Tower Research Capital LLC (TRC)15.1K0.02%+15.0KMay 15, 2026
Citigroup Inc1.7K0.00%+1.7KnewMay 11, 2026
Dauntless Investment Group, LLC1.0K0.00%+1.0KnewMay 14, 2026
FMR LLC1500.00%+150newMay 15, 2026

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

Holder% of classSharesFormFiled
Nantahala Capital Management, LLC9.99%6.48M13GAug 14, 2026
Salva Francisco D.9.99%5.42M13DJun 24, 2026
Alumni Capital LP9.99%1.13M13GDec 19, 2025
Ayrton Capital LLC9.99%1.66M13GMay 14, 2025
Stonepine Capital Management, LLC9.90%1.74M13GJun 22, 2026
Dauntless Investment Group, LLC9.60%5.80M13GJun 25, 2026
Nantahala Capital Partners Limited Partnership8.40%5.45M13GAug 14, 2026

Insider tradesForm 4

Latest trades

Nothing filed in the last 12 months.

CongressHouse and Senate disclosures

Not reported.