Protagenic Therapeutic -CW25PTIXWPreferred / convertible

13F holders, Q2 2025 (June 30)
4holders −2
2new positions
4sold out
$0.05avg. 13F price*

At the end of Q2 2025, 4 institutions reported holding Protagenic Therapeutic -CW25 (PTIXW) in their 13F filings, down 2 from Q1 2025. 2 opened new positions and 4 sold out. The largest holders were Clear Street LLC ($5K), Susquehanna International Group, LLP ($1K) and Two Sigma Securities, LLC ($536).

Company
Protagenic Therapeutic -CW25
CUSIP
74365N111
Latest filing quarter
Q4 2025

History

Number of 13F holders

0246 Q1 2024: 2Q1 2024Q2 2024: 4Q2 2024Q3 2024: 3Q3 2024Q4 2024: 6Q4 2024Q1 2025: 6Q1 2025Q2 2025: 4Q2 2025Q3 2025: 4Q3 2025Q4 2025: 3Q4 2025

Total Exit/New Position Q1 2025 → Q2 2025

InstitutionsTotal Value
New Positions2$541
Exits4$2K

All 13F filers, Q1 2025 → Q2 2025: 11,342 shares bought and 243,467 shares sold, net −232,125 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.

Ownership 4 holders

Clear Street LLC — No change 100,000 $5K
Susquehanna International Group, LLP — Reduce -49.4% 25,378 $1K
Two Sigma Securities, LLC — New 11,242 $536
Bank of America Corp. — New 100 $5

"% of holder's portfolio" is PTIXW's weight in each manager's 13F, not the share of Protagenic Therapeutic -CW25 the manager owns.