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Protagenic Therapeutics shares owned by Harbor Investment Advisory

Quarter-by-quarter ownership of Protagenic Therapeutics (PTIX) shares owned by Harbor Investment Advisory from 13F filings

Historical chart of Harbor Investment Advisory investment in Protagenic Therapeutics

Tip: Access up to 7 years of quarterly data

All positions including Protagenic Therapeutics held by Harbor Investment Advisory consolidated in one spreadsheet with up to 7 years of data

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Quarterly reported holdings in Protagenic Therapeutics by Harbor Investment Advisory

Quarter filed Position value Share count Share price at filing
2025-09-30 $3 1 3.00
2025-06-30 $4 1 4.00

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Top funds holding Protagenic Therapeutics

DRW Holdings
Connective Capital Management
FNY Investment Advisers
Morgan Stanley
Tower Research Capital
UBS Group
CWM
Harbor Investment Advisory

View all funds holding Protagenic Therapeutics