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PTIX · Protagenic Therapeutics, Inc.\new

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$0.57 -0.17 (-22.97%) At close · Jan 5
Market Cap
$1.45M
Shares
1.81M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 2
Total Value: $9,800
Total Shares: 66,783

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 2 13F filers
Top Holder
100.0%
Sep 2023 → Jun 2026 · range 0.0% – 100.0%
of institutional value
Top 5
100.0%
Sep 2023 → Jun 2026 · range 0.0% – 100.0%
of institutional value
Top 10
100.0%
Sep 2023 → Jun 2026 · range 0.0% – 100.0%
of institutional value
HHI
10,000
Sep 2023 → Jun 2026 · range 0 – 10,000
Highly concentrated

Quarterly Activity

vs Mar 31, 2026
New
0
Increased
0
Decreased
0
Sold Out
2
Unchanged
2
Holder count: -2
Institutional value:
Shares held: -0.2%

Top New Positions

vs Mar 31, 2026
No new positions this quarter.

Top Sold-Out Positions

vs Mar 31, 2026
Institution Previously Held Last Value (USD) Open
Showing 2 of 2
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 1022899 CUSIP 74365N301 13F (30d) 1 filings 1 filers Visit website Investor relations