Pasithea Therapeutics Corp. (KTTA) Ownership
KTTA ownership summary
as of October 18, 2026- Institutions
- 63.2% of shares outstanding
- Insiders
- 1.11% of shares outstanding
- Shares outstanding
- 33.4M
- Float
- 19.7M shares available to trade
- Short interest
- 0.48% 160K shares short
- Days to cover
- 0.83 short interest down 40.8% vs prior month
- Institutions 63.23%
- Insiders 1.11%
- Other investors 35.66%
KTTA top institutional holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Cable Car Capital LLC | 8.98% | 3.0M | $1.3M | +1.8M (+148.7%) | June 30, 2026 |
| 2 | Stonepine Capital Management Llc | 6.59% | 2.2M | $924,617 | +1.4M (+164.8%) | June 30, 2026 |
| 3 | HHG PLC | 6.28% | 2.1M | $882,000 | — | March 31, 2026 |
| 4 | Jupiter Topco LLC | 6.28% | 2.1M | $882,000 | +2.1M (0.0%) | June 30, 2026 |
| 5 | Adage Capital Partners Gp LLC | 6.28% | 2.1M | $882,000 | — | June 30, 2026 |
| 6 | Opaleye Management Inc | 6.14% | 2.0M | $861,000 | +2.0M (0.0%) | June 30, 2026 |
| 7 | Ameriprise Financial Inc | 5.58% | 1.9M | $783,084 | +513,589 (+38.0%) | June 30, 2026 |
| 8 | Squadron Capital Management LLC | 2.99% | 1.0M | $420,000 | −1.1M (−52.4%) | June 30, 2026 |
| 9 | AdvisorShares Investments, LLC | 2.81% | 938K | $393,771 | +600,042 (+177.8%) | June 30, 2026 |
| 10 | Vivo Capital, LLC | 1.39% | 465K | $195,498 | −1.6M (−77.8%) | June 30, 2026 |
| 11 | Persistent Asset Partners Limited | 0.87% | 291K | $122,033 | — | June 30, 2026 |
| 12 | UBS Group AG | 0.56% | 188K | $79,007 | +161,962 (+619.4%) | June 30, 2026 |
| 13 | XTX Topco Ltd | 0.38% | 128K | $53,580 | +93,821 (+278.0%) | June 30, 2026 |
| 14 | Vanguard Capital Management, LLC | 0.38% | 126K | $53,037 | +72,464 (+134.7%) | June 30, 2026 |
| 15 | Geode Capital Management, LLC | 0.25% | 84K | $35,220 | −20,129 (−19.4%) | June 30, 2026 |
| 16 | Renaissance Technologies Corp | 0.20% | 66K | $27,552 | −27,799 (−29.8%) | June 30, 2026 |
| 17 | Two Sigma Investments LLC | 0.19% | 64K | $26,950 | +43,112 (+204.8%) | June 30, 2026 |
| 18 | Vanguard Fiduciary Trust Co | 0.13% | 44K | $18,421 | — | June 30, 2026 |
| 19 | Northern Trust Corp | 0.09% | 31K | $13,190 | +12,033 (+62.1%) | June 30, 2026 |
| 20 | Jump Financial LLC | 0.09% | 29K | $12,332 | +29,363 (0.0%) | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 12 holders added 8.8M shares and 4 cut 2.8M.
KTTA top mutual fund and ETF holders
4 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | AdvisorShares Psychedelics ETF | 3.47% | 1.2M | $487,221 | — | September 30, 2026 |
| 2 | Fidelity Extended Market Index | 0.17% | 58K | $24,156 | −309 (−0.5%) | August 31, 2026 |
| 3 | Fidelity Nasdaq Composite Index | 0.04% | 13K | $5,645 | — | August 31, 2026 |
| 4 | Fidelity Series Total Market Index | 0.02% | 7,969 | $3,347 | — | August 31, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
KTTA insider transactions
latest 4| Date | Name | Transaction | Price | Shares | Value |
|---|---|---|---|---|---|
| 2025-11-28 | Lawrence Steinman | Buy | $0.75 | 133,333 | $100,000 |
| 2025-11-28 | Simon Dumesnil | Buy | $0.75 | 33,333 | $25,000 |
| 2025-11-28 | Tiago Marques | Buy | $0.75 | 33,333 | $25,000 |
| 2025-05-12 | Tiago Marques | Sell | $0.82 | 960 | $787 |
Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.
KTTA shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns KTTA
Institutional investors own 63.2% of Pasithea Therapeutics's shares and insiders 1.11%. The largest holder is Cable Car Capital LLC with 8.98% of the shares (3.0M), as of June 30, 2026. Among the top 20 institutions, 12 added shares and 4 reduced their stake in the latest filings. Short interest is 0.48% of the float, or 0.83 days of average trading volume. The share count rose 1,766.0% since 2020.
Related: KTTA analyst forecast, KTTA key metrics. See the KTTA stock overview for the latest quote and news.
KTTA ownership FAQ
Who owns the most Pasithea Therapeutics stock?
The largest shareholders of Pasithea Therapeutics are Cable Car Capital LLC (8.98%), Stonepine Capital Management Llc (6.59%), HHG PLC (6.28%), Jupiter Topco LLC (6.28%), Adage Capital Partners Gp LLC (6.28%).
What percentage of Pasithea Therapeutics is owned by institutions?
Institutions hold 63.2% of Pasithea Therapeutics's shares outstanding; insiders hold 1.11%.
Which funds own Pasithea Therapeutics?
The largest fund holders of Pasithea Therapeutics are AdvisorShares Psychedelics ETF (3.47%), Fidelity Extended Market Index (0.17%), Fidelity Nasdaq Composite Index (0.04%), Fidelity Series Total Market Index (0.02%).
What is Pasithea Therapeutics's short interest?
160K shares of Pasithea Therapeutics were sold short, 0.48% of the float; at the average daily volume it would take 0.83 days to cover.
Are insiders buying or selling Pasithea Therapeutics?
Of the latest 4 reported insider transactions in Pasithea Therapeutics (since May 12, 2025), 3 were purchases and 1 were sales.
How many shares of Pasithea Therapeutics are outstanding?
Pasithea Therapeutics has 33.4M shares outstanding, of which 19.7M are in the public float.