PASITHEA THERAPEUTICS CORP (KTTA) Institutional Ownership Changes & 13F Activity
PASITHEA THERAPEUTICS CORP (KTTA). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q2 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Janus Henderson Group Plc, Opaleye Management Inc., Ameriprise Financial Inc, Cable Car Capital, Lp, and Vivo Capital, Llc.
| Institution | Type | Change in shares | Change Position % | Shares | Reported stock balance | Portfolio quarter | Filing date |
|---|---|---|---|---|---|---|---|
| Stonepine Capital Management, Llc | Buy | +1,370,167 | +164.8% | 2,201,468 | $1.13M | Q2 2026 | Aug 17, 2026 |
| Opaleye Management Inc. | Buy | +2,050,000 | — | 2,050,000 | $1.06M | Q2 2026 | Aug 14, 2026 |
| Ameriprise Financial Inc | Buy | +1,864,485 | — | 1,864,485 | $960.96K | Q2 2026 | Aug 14, 2026 |
| Cable Car Capital, Lp | Buy | +1,793,621 | +148.7% | 3,000,000 | $1.55M | Q2 2026 | Aug 14, 2026 |
| Vivo Capital, Llc | Sell | -1,634,529 | -77.8% | 465,471 | $239.90K | Q2 2026 | Aug 14, 2026 |
| Squadron Capital Management Llc | Sell | -1,100,000 | -52.4% | 1,000,000 | $515.40K | Q2 2026 | Aug 14, 2026 |
| Xtx Topco Ltd | Buy | +93,821 | +278.0% | 127,572 | $65.75K | Q2 2026 | Aug 14, 2026 |
| Two Sigma Investments, Lp | Buy | +43,112 | +204.8% | 64,166 | $33.07K | Q2 2026 | Aug 14, 2026 |
| Royal Bank Of Canada | Buy | +275 | — | 275 | $0.00 | Q2 2026 | Aug 14, 2026 |
| Barclays Plc | Buy | +269 | — | 269 | $139.00 | Q2 2026 | Aug 14, 2026 |
| Ubs Group Ag | Buy | +161,962 | +619.4% | 188,111 | $96.88K | Q2 2026 | Aug 13, 2026 |
| Vanguard Capital Management Llc | Buy | +72,464 | +134.7% | 126,279 | $65.03K | Q2 2026 | Aug 13, 2026 |
| Jump Financial, Llc | Buy | +29,363 | — | 29,363 | $15.13K | Q2 2026 | Aug 13, 2026 |
| Renaissance Technologies LLC | Sell | -27,799 | -29.8% | 65,600 | $33.81K | Q2 2026 | Aug 13, 2026 |
| Northern Trust Corp | Buy | +12,033 | +62.1% | 31,405 | $16.19K | Q2 2026 | Aug 13, 2026 |
| Geode Capital Management, Llc | Sell | -20,129 | -19.4% | 83,856 | $43.22K | Q2 2026 | Aug 12, 2026 |
| Jpmorgan Chase & Co | Buy | +150 | — | 150 | $79.00 | Q2 2026 | Aug 12, 2026 |
| Advisorshares Investments Llc | Buy | +600,042 | +177.8% | 937,550 | $483.21K | Q2 2026 | Aug 11, 2026 |
| Tower Research Capital Llc (Trc) | Buy | +6,984 | +376.7% | 8,838 | $4.55K | Q2 2026 | Aug 11, 2026 |
| Hurley Capital, Llc | Buy | +3,311 | +89.8% | 7,000 | $3.61K | Q2 2026 | Aug 10, 2026 |
| Janus Henderson Group Plc | Sell | -2,100,000 | -100.0% | 0 | $0.00 | Q2 2026 | May 15, 2026 |
Frequently asked questions about KTTA activity
Which institutional owners are buying KTTA?
Institutional owners buying KTTA include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.
What does "buy" mean in KTTA activity?
"Buy" means an investor increased their reported position in KTTA compared to the prior reporting period. This reflects growing exposure to PASITHEA THERAPEUTICS CORP (KTTA) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in KTTA increasing?
Institutional interest in KTTA can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.