PASITHEA THERAPEUTICS CORP (KTTA)
Institutional ownership reported to the SEC as of Q2 2026, across 20 quarters.
Institutions report 18,988,792 shares against 33,414,448 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end.
Calls and puts are the parts of reported value carried in derivative lines rather than shares, and they point in opposite directions: a manager holding calls is positioned for the security, one holding puts against it - or hedging shares they already own, which is why index funds carry so many. Most sites add the two together and report one figure, which averages away the only interesting part.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| Stonepine Capital Management, LLC | $2.3M | 4,402,936 | 0.58% | 3q | +429.6%+$1.8M |
| Cable Car Capital, LP | $1.5M | 3,000,000 | 0.03% | 3q | +148.7%+$924.4K |
| Jupiter Topco LLC | $1.1M | 2,100,000 | 0.00% | new | FIRST |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | $1.1M | 2,100,000 | 0.00% | 3q | HELD |
| Opaleye Management Inc. | $1.1M | 2,050,000 | 0.10% | new | NEW |
| AMERIPRISE FINANCIAL INC | $961.0K | 1,864,485 | 0.00% | 3q | -31.0%-$431.5K |
| Squadron Capital Management LLC | $515.4K | 1,000,000 | 0.16% | 3q | -52.4%-$566.9K |
| AdvisorShares Investments LLC | $483.2K | 937,550 | 0.06% | 6q | +177.8%+$309.3K |
| Vivo Capital, LLC | $239.9K | 465,471 | 0.02% | 3q | -77.8%-$842.4K |
| Persistent Asset Partners Ltd | $149.8K | 290,555 | 0.04% | 3q | HELD |
| UBS Group AG | $96.9K | 188,111 | 0.00% | 10q | +619.4%+$83.4K |
| XTX Topco Ltd | $65.8K | 127,572 | 0.00% | 4q | +278.0%+$48.4K |
| VANGUARD CAPITAL MANAGEMENT LLC | $65.0K | 126,279 | 0.00% | 2q | +134.7%+$37.3K |
| GEODE CAPITAL MANAGEMENT, LLC | $43.2K | 83,856 | 0.00% | 4q | -19.4%-$10.4K |
| RENAISSANCE TECHNOLOGIES LLC | $33.8K | 65,600 | 0.00% | 2q | -29.8%-$14.3K |
| TWO SIGMA INVESTMENTS, LP | $33.1K | 64,166 | 0.00% | 4q | +204.8%+$22.2K |
| VANGUARD FIDUCIARY TRUST CO | $22.6K | 43,860 | 0.00% | 2q | HELD |
| NORTHERN TRUST CORP | $16.2K | 31,405 | 0.00% | 3q | +62.1%+$6.2K |
| Jump Financial, LLC | $15.1K | 29,363 | 0.00% | new | NEW |
| Tower Research Capital LLC (TRC) | $4.6K | 8,838 | 0.00% | 10q | +376.7%+$3.6K |
| Hurley Capital, LLC | $3.6K | 7,000 | 0.00% | 6q | +89.8%+$1.7K |
| SBI Securities Co., Ltd. | $542 | 1,051 | 0.00% | 5q | HELD |
| BARCLAYS PLC | $139 | 269 | 0.00% | new | NEW |
| JPMORGAN CHASE & CO | $79 | 150 | 0.00% | 10q | HELD |
| ROYAL BANK OF CANADA | $0 | 275 | 0.00% | new | NEW |
Five percent filings
Anyone crossing 5% of a company must say so within days - far sooner than the next quarterly holdings report. A 13D declares an intent to influence the company; a 13G is the passive version. See all activist filings →
| Filed | Form | Filer | % of class |
|---|---|---|---|
| 2026-08-14 | 13G/A | Vivo Opportunity Fund Holdings, L.P.with 3 co-filers | 10.0% |
| 2026-07-31 | 13G/A | Opaleye Management Inc.with 2 co-filers | 6.1% |
| 2026-07-01 | 13G/A | Coastlands Capital LPwith 4 co-filers | 11.5% |
Tender offers and delisting
Schedules TO, 13E-3 and 14D-9 and Form 25 filed in the last 180 days. Price a share is read from the filing itself where it states one plainly; a marker means we found no figure we could stand behind, and the reason is on it.
| Filed | What | Filed by | Price a share | Source |
|---|---|---|---|---|
| 2026-09-16 | Delisting notice from the exchange | Nasdaq Stock Market LLC | - | filing |
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 |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 25 | $9.8M | 18,988,792 | 4 | 10 | 5 | 0.0% |
| Q1 2026 | 21 | $10.5M | 14,169,664 | 1 | 7 | 3 | 0.0% |
| Q4 2025 | 25 | $16.7M | 12,925,415 | 11 | 7 | 4 | 0.0% |
| Q3 2025 | 18 | $441.5K | 612,154 | 10 | 3 | 3 | 0.0% |
| Q2 2025 | 10 | $216.6K | 300,344 | 4 | 3 | 1 | 0.0% |
| Q1 2025 | 7 | $99.1K | 78,704 | 3 | 1 | 1 | 0.0% |
| Q4 2024 | 7 | $243.3K | 77,162 | 1 | 2 | 3 | 0.0% |
| Q3 2024 | 6 | $49.7K | 9,236 | 1 | 2 | 1 | 0.0% |
| Q2 2024 | 7 | $152.4K | 30,146 | 2 | 1 | 1 | 0.0% |
| Q1 2024 | 6 | $219.2K | 30,205 | 6 | 0 | 0 | 0.0% |
| Q4 2023 | 8 | $95.8K | 251,808 | 2 | 2 | 2 | 0.0% |
| Q3 2023 | 12 | $121.9K | 255,417 | 4 | 2 | 3 | 0.0% |
| Q2 2023 | 12 | $184.3K | 378,085 | 3 | 2 | 3 | 0.0% |
| Q1 2023 | 12 | $147.7K | 385,124 | 3 | 1 | 3 | 0.0% |
| Q4 2022 | 11 | $405.6K | 631,393 | 4 | 3 | 1 | 0.0% |
| Q3 2022 | 8 | $1.0M | 818,998 | 1 | 3 | 1 | 0.0% |
| Q2 2022 | 9 | $662.1K | 655,939 | 6 | 1 | 1 | 0.0% |
| Q1 2022 | 7 | $985.0K | 757,354 | 3 | 2 | 0 | 0.0% |
| Q4 2021 | 6 | $1.1M | 614,318 | 5 | 1 | 0 | 0.0% |
| Q3 2021 | 4 | $1.3M | 415,564 | 4 | 0 | 0 | 0.0% |