RAPT (RAPT) Institutional Ownership Changes & 13F Activity
RAPT. Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q4 2025). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Medicxi Ventures Management (Jersey) Ltd, Renaissance Technologies LLC, Column Group Llc, and Aju Ib Investment Co., Ltd..
| Institution | Type | Change in shares | Change Position % | Shares | Reported stock balance | Portfolio quarter | Filing date |
|---|---|---|---|---|---|---|---|
| Column Group Llc | Buy | +156,270 | — | 156,270 | $5.29M | Q4 2025 | Feb 13, 2026 |
| Aju Ib Investment Co., Ltd. | Buy | +12,437 | — | 12,437 | $421.24K | Q4 2025 | Feb 10, 2026 |
| Medicxi Ventures Management (Jersey) Ltd | Buy | +2,794,000 | — | 2,794,000 | $94.63M | Q4 2025 | Jan 23, 2026 |
| Renaissance Technologies LLC | Sell | -648,823 | -100.0% | 0 | $0.00 | Q4 2025 | May 14, 2025 |
Frequently asked questions about RAPT activity
Which institutional owners are buying RAPT?
Institutional owners buying RAPT 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 RAPT activity?
"Buy" means an investor increased their reported position in RAPT compared to the prior reporting period. This reflects growing exposure to RAPT rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in RAPT increasing?
Institutional interest in RAPT 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.