PASITHEA THERAPEUTICS CORP KTTA
COM NEW · Common Stock · CUSIP 70261F202
- SectorHealth care
- IndustryPharmaceutical Preparations
- HeadquartersMiami Beach, FL
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once. Holder counts are more reliable. Shares outstanding: 33.4m as of 2026-08-12, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $0.52.
Trends to Q2 2026
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q1 2024 | 7 |
| Q2 2024 | 8 |
| Q3 2024 | 7 |
| Q4 2024 | 8 |
| Q1 2025 | 9 |
| Q2 2025 | 12 |
| Q3 2025 | 19 |
| Q4 2025 | 25 |
| Q1 2026 | 21 |
| Q2 2026 | 25 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q3 2024 | 3 | 3 |
| Q4 2024 | 3 | 3 |
| Q1 2025 | 4 | 3 |
| Q2 2025 | 8 | 2 |
| Q3 2025 | 13 | 6 |
| Q4 2025 | 17 | 9 |
| Q1 2026 | 7 | 10 |
| Q2 2026 | 15 | 4 |
Biggest buyers
| Opaleye Management Inc. | New | +2.0m |
| Cable Car Capital, LP | Added | +1.8m |
| Stonepine Capital Management, LLC | Added | +1.4m |
| AdvisorShares Investments LLC | Added | +600.0k |
| AMERIPRISE FINANCIAL INC | Added | +513.6k |
| UBS Group AG | Added | +162.0k |
| XTX Topco Ltd | Added | +93.8k |
| VANGUARD CAPITAL MANAGEMENT LLC | Added | +72.5k |
| TWO SIGMA INVESTMENTS, LP | Added | +43.1k |
| Jump Financial, LLC | New | +29.4k |
Biggest sellers
| Vivo Capital, LLC | Reduced | -1.6m |
| Squadron Capital Management LLC | Reduced | -1.1m |
| RENAISSANCE TECHNOLOGIES LLC | Reduced | -27.8k |
| GEODE CAPITAL MANAGEMENT, LLC | Reduced | -20.1k |
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| Coastlands Capital LP 13G · institution +1.5 pts · filed 2026-07-01 | 11.5% |
| Vivo Opportunity Fund Holdings, L.P. 13G · passive investor no change · filed 2026-08-14 | 10.0% |
| Adage Capital Management, L.P. 13G · institution new · filed 2026-02-12 | 10.0% |
| JANUS HENDERSON GROUP PLC 13G · institution new · filed 2025-12-08 | 10.0% |
| Squadron Capital Management LLC 13G · institution no change · filed 2026-02-17 | 9.9% |
| Funicular Funds, LP 13G · passive investor new · filed 2026-04-22 | 7.4% |
| Opaleye Management Inc. 13G · passive investor -3.9 pts · filed 2026-07-31 | 6.1% |
| Stonepine Capital Management, LLC 13G · passive investor new · filed 2026-06-23 | 5.8% |
| AMERIPRISE FINANCIAL INC 13G · institution -3.0 pts · filed 2026-05-15 | 5.4% |
Fell to 5% or below in the last year: CVI Investments, Inc. (3.8%, 2026-02-17)
Insider purchases and sales since 1 Apr 2026
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q4 2024 | 0 | — | 0 | — | — |
| Q1 2025 | 0 | — | 0 | — | — |
| Q2 2025 | 0 | — | 1 | $797 | — |
| Q3 2025 | 0 | — | 0 | — | — |
| Q4 2025 | 3 | $125.0k | 0 | — | — |
| Q1 2026 | 0 | — | 0 | — | — |
| Q2 2026 | 0 | — | 0 | — | — |
| Q3 2026 | 0 | — | 0 | — | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2026-06-17 | Coastlands Capital LP 10% owner · By Coastlands Capital LP | Bought | $53.0k100.0k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q2 2026
| Manager | Shares | Change |
|---|---|---|
| Cable Car Capital, LP 0.07% of their portfolio | 3.0m $1.5m | Added +1.8m |
| Stonepine Capital Management, LLC 0.86% of their portfolio | 2.2m $1.1m | Added +1.4m |
| ADAGE CAPITAL PARTNERS GP, L.L.C. 0.00% of their portfolio | 2.1m $1.1m | Unchanged |
| Jupiter Topco LLC 0.00% of their portfolio | 2.1m $1.1m | First filing |
| Opaleye Management Inc. 0.10% of their portfolio | 2.0m $1.1m | New |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 1.9m $961.0k | Added +513.6k |
| Squadron Capital Management LLC 0.18% of their portfolio | 1.0m $515.4k | Reduced -1.1m |
| AdvisorShares Investments LLC 0.06% of their portfolio | 937.5k $483.2k | Added +600.0k |
| Vivo Capital, LLC 0.02% of their portfolio | 465.5k $239.9k | Reduced -1.6m |
| Persistent Asset Partners Ltd 0.05% of their portfolio | 290.6k $149.8k | Unchanged |
| UBS Group AG 0.00% of their portfolio | 188.1k $96.9k | Added +162.0k |
| XTX Topco Ltd 0.00% of their portfolio | 127.6k $65.8k | Added +93.8k |
| VANGUARD CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 126.3k $65.0k | Added +72.5k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 83.9k $43.2k | Reduced -20.1k |
| RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio | 65.6k $33.8k | Reduced -27.8k |
| TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio | 64.2k $33.1k | Added +43.1k |
| VANGUARD FIDUCIARY TRUST CO 0.00% of their portfolio | 43.9k $22.6k | Unchanged |
| NORTHERN TRUST CORP 0.00% of their portfolio | 31.4k $16.2k | Added +12.0k |
| Jump Financial, LLC 0.00% of their portfolio | 29.4k $15.1k | New |
| Tower Research Capital LLC (TRC) 0.00% of their portfolio | 8.8k $4.6k | Added +7.0k |
| Hurley Capital, LLC 0.00% of their portfolio | 7.0k $3.6k | Added +3.3k |
| SBI Securities Co., Ltd. 0.00% of their portfolio | 1.1k $542 | Unchanged |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 275 $0 | New |
| BARCLAYS PLC 0.00% of their portfolio | 269 $139 | New |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 150 $79 | Unchanged |