JANUS HENDERSON MORTG BACKED (JMBS) Institutional Ownership Changes & 13F Activity

JANUS HENDERSON MORTG BACKED (JMBS). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings. This page analyzes institutional buying and selling activity, new holdings, and sold-out positions among tracked filers. Notable filers include Renaissance Technologies LLC.

Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q1 2026Renaissance Technologies LLCBuy26,03756,300$2,543,634
Q4 2025Renaissance Technologies LLCSell-74,43730,263$1,382,716
Q3 2025Renaissance Technologies LLCBuy52,500104,700$4,781,649
Q3 2024Renaissance Technologies LLCBuy31,30052,200$2,435,130
Q4 2023Renaissance Technologies LLCSell-16,40020,900$960
Q3 2023Renaissance Technologies LLCBuy37,30037,300$1,619

Frequently asked questions about JMBS activity

  • Which institutional owners are buying JMBS?

    Institutional owners buying JMBS 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 JMBS activity?

    "Buy" means an investor increased their reported position in JMBS compared to the prior reporting period. This reflects growing exposure to JANUS HENDERSON MORTG BACKED (JMBS) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in JMBS increasing?

    Institutional interest in JMBS 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.

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