PROTAGENIC THERAPEUTICS INC (PTIXW)
Institutional ownership reported to the SEC as of Q4 2025, across 19 quarters.
3
Reporting holders
$5.5K
Reported value
0.0%
Held as options
-1
Holder change
Options share is the part of reported value carried in derivative lines rather than shares. A high figure means institutions are expressing a view on this security without owning much of it.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | $2.7K | 87,596 | 0.00% | 7q | HELD |
| Clear Street Group Inc. | $2.4K | 100,000 | 0.00% | 2q | HELD |
| TWO SIGMA SECURITIES, LLC | $371 | 15,533 | 0.00% | 3q | +25.8% |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q4 2025 | 3 | $5.5K | 203,129 | 0 | 1 | 0 | 0.0% |
| Q3 2025 | 4 | $5.1K | 200,048 | 0 | 2 | 0 | 0.0% |
| Q2 2025 | 4 | $6.8K | 136,720 | 2 | 0 | 1 | 0.0% |
| Q1 2025 | 5 | $2.6K | 348,726 | 1 | 1 | 1 | 0.0% |
| Q4 2024 | 5 | $1.5K | 280,675 | 2 | 1 | 1 | 0.0% |
| Q3 2024 | 3 | $2.8K | 249,111 | 0 | 1 | 0 | 0.0% |
| Q2 2024 | 4 | $1.9K | 229,196 | 2 | 0 | 0 | 0.0% |
| Q1 2024 | 2 | $6.8K | 202,596 | 0 | 1 | 0 | 0.0% |
| Q4 2023 | 3 | $1.9K | 202,496 | 2 | 0 | 0 | 0.0% |
| Q3 2023 | 1 | $5.3K | 177,196 | 0 | 0 | 0 | 0.0% |
| Q2 2023 | 2 | $6.3K | 188,523 | 0 | 0 | 1 | 0.0% |
| Q1 2023 | 3 | $5.3K | 217,707 | 1 | 0 | 1 | 0.0% |
| Q4 2022 | 2 | $7.8K | 201,160 | 0 | 1 | 1 | 0.0% |
| Q3 2022 | 2 | $13.0K | 305,337 | 0 | 0 | 2 | 0.0% |
| Q2 2022 | 2 | $53.0K | 354,942 | 1 | 0 | 1 | 0.0% |
| Q1 2022 | 1 | $78.0K | 362,066 | 0 | 1 | 0 | 0.0% |
| Q4 2021 | 1 | $69.0K | 181,534 | 0 | 0 | 1 | 0.0% |
| Q3 2021 | 1 | $143.0K | 364,791 | 0 | 0 | 0 | 0.0% |
| Q2 2021 | 1 | $260.0K | 365,790 | 1 | 0 | 0 | 0.0% |