KTTA Institutional Ownership & Shareholders
PASITHEA THERAPEUTICS CORP (KTTA) is currently held by 24 institutional investors tracked by InsiderSet, with a combined reported market value of approximately $9.13M based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026.
Janus Henderson Group Plc is currently the largest disclosed institutional shareholder of KTTA tracked by InsiderSet, reporting ownership valued at approximately $1.56M in its March 31, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $772,800, representing an estimated loss of -50.60% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 96% of the total disclosed KTTA value among the investors covered in this analysis. Major shareholders include Janus Henderson Group Plc, Cable Car Capital, Lp, Stonepine Capital Management, Llc, and several other long-term asset managers with concentrated positions in PASITHEA THERAPEUTICS CORP (KTTA).
This page ranks the largest institutional KTTA shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
24
Total Reported Value
$9.13M
Largest Holder
Janus Henderson Group Plc
Largest Position
$1.56M
Insider Transactions (90d)
0
Latest Filing Quarter
Q2 2026
New Institutional Positions
31
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Janus Henderson Group Plc | 0.00% | 2,100,000 | $1,564,500 | $772,800 | -$791,700 | -50.60% | |
| Cable Car Capital, Lp | 0.03% | 3,000,000 | $1,546,200 | $1,104,000 | -$442,200 | -28.60% | |
| Stonepine Capital Management, Llc | 0.86% | 2,201,468 | $1,134,637 | $810,140 | -$324,497 | -28.60% | |
| Adage Capital Partners Gp, L.L.C. | 0.00% | 2,100,000 | $1,082,340 | $772,800 | -$309,540 | -28.60% | |
| Opaleye Management Inc. | 0.10% | 2,050,000 | $1,056,570 | $754,400 | -$302,170 | -28.60% | |
| Ameriprise Financial Inc | 0.00% | 1,864,485 | $960,955 | $686,130 | -$274,825 | -28.60% | |
| Squadron Capital Management Llc | 0.18% | 1,000,000 | $515,400 | $368,000 | -$147,400 | -28.60% | |
| Advisorshares Investments Llc | 0.06% | 937,550 | $483,213 | $345,018 | -$138,195 | -28.60% | |
| Vivo Capital, Llc | 0.02% | 465,471 | $239,904 | $171,293 | -$68,611 | -28.60% | |
| Persistent Asset Partners Ltd | 0.05% | 290,555 | $149,752 | $106,924 | -$42,828 | -28.60% | |
| Ubs Group Ag | 0.00% | 188,111 | $96,877 | $69,225 | -$27,652 | -28.54% | |
| Xtx Topco Ltd | 0.00% | 127,572 | $65,751 | $46,946 | -$18,805 | -28.60% | |
| Vanguard Capital Management Llc | 0.00% | 126,279 | $65,034 | $46,471 | -$18,563 | -28.54% | |
| Geode Capital Management, Llc | 0.00% | 83,856 | $43,221 | $30,859 | -$12,362 | -28.60% | |
| Renaissance Technologies LLC | Jim Simons | 0.00% | 65,600 | $33,810 | $24,141 | -$9,669 | -28.60% |
| Two Sigma Investments, Lp | 0.00% | 64,166 | $33,071 | $23,613 | -$9,458 | -28.60% | |
| Vanguard Fiduciary Trust Co | 0.00% | 43,860 | $22,588 | $16,140 | -$6,448 | -28.54% | |
| Northern Trust Corp | 0.00% | 31,405 | $16,186 | $11,557 | -$4,629 | -28.60% | |
| Jump Financial, Llc | 0.00% | 29,363 | $15,133 | $10,806 | -$4,327 | -28.60% | |
| Tower Research Capital Llc (Trc) | 0.00% | 8,838 | $4,555 | $3,252 | -$1,303 | -28.60% | |
| Hurley Capital, Llc | 0.00% | 7,000 | $3,608 | $2,576 | -$1,032 | -28.60% | |
| Sbi Securities Co., Ltd. | 0.00% | 1,051 | $518 | $387 | -$131 | -25.33% | |
| Barclays Plc | 0.00% | 269 | $139 | $99 | -$40 | -28.78% | |
| Jpmorgan Chase & Co | 0.00% | 150 | $79 | $55 | -$24 | -30.13% |
Frequently asked questions about KTTA
Who are the largest institutional holders of KTTA?
The largest institutional holders of KTTA reported in the latest SEC Form 13F filings include Janus Henderson Group Plc, Cable Car Capital, Lp, Stonepine Capital Management, Llc, Adage Capital Partners Gp, L.L.C., and Opaleye Management Inc.. InsiderSet ranks institutional holders by their latest reported KTTA position.
What is KTTA institutional ownership?
This page tracks KTTA positions reported by institutional investment managers through SEC Form 13F. PASITHEA THERAPEUTICS CORP (KTTA) institutional ownership on InsiderSet reflects disclosed 13F holdings among the managers we analyze, not every shareholder of the stock.
How many institutions own KTTA?
InsiderSet currently tracks 24 institutional managers reporting KTTA holdings in the latest available 13F data. This count reflects institutions included in the SEC Form 13F filings analyzed by InsiderSet and should not be interpreted as the total number of KTTA shareholders.
How much KTTA stock do institutions own?
Institutional investment managers disclosed approximately $9.13M in KTTA holdings for Q2 2026. This figure is reported 13F value as of the filing period, not necessarily today's market value.
When was KTTA institutional ownership last updated?
The latest KTTA institutional ownership data on InsiderSet is based on SEC Form 13F filings for the quarter ended June 30, 2026. Form 13F filings are generally reported after the quarter ends, so the holdings shown represent the latest publicly disclosed positions rather than real-time institutional holdings.
Are institutional KTTA holdings real-time?
No. Form 13F data is not real-time. It represents positions reported by institutional investment managers as of the end of the reporting quarter. An institution may have changed its KTTA position after the reporting date.
Are institutions buying or selling KTTA?
Institutional buying and selling can be analyzed by comparing KTTA positions across consecutive 13F reporting periods. InsiderSet's KTTA Ownership Changes page shows institutions that increased, reduced, initiated, or exited positions based on reported 13F holdings. View KTTA ownership changes.
How has KTTA institutional ownership changed over time?
InsiderSet tracks KTTA institutional holdings across multiple 13F reporting periods, allowing investors to compare institutional holder counts, reported value, and reported shares over time.