ISHARES CORE TOTAL BOND ETF (IUSB) Institutional Ownership Changes & 13F Activity

ISHARES CORE TOTAL BOND ETF (IUSB). 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 Sequoia Financial Advisors and Renaissance Technologies LLC.

Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q1 2026Sequoia Financial AdvisorsBuy48,42270,333$3,248,682
Q3 2025Renaissance Technologies LLCBuy50,900211,800$9,893,178
Q2 2025Renaissance Technologies LLCSell-35,400160,900$7,438,407
Q2 2025Sequoia Financial AdvisorsBuy16,86321,911$1,012,946
Q1 2025Renaissance Technologies LLCBuy99,700196,300$9,045,504
Q1 2025Sequoia Financial AdvisorsBuy6215,048$232,612
Q4 2024Sequoia Financial AdvisorsSell-4,0384,427$200,101
Q1 2024Sequoia Financial AdvisorsSell-24,7128,465$385,920
Q4 2023Sequoia Financial AdvisorsBuy33,17733,177$1,528,465
Q4 2022Renaissance Technologies LLCSell-14,15196,600$4,340
Q2 2022Renaissance Technologies LLCSell-12,910110,751$5,185
Q4 2020Renaissance Technologies LLCBuy101,590123,661$6,749
Q3 2020Renaissance Technologies LLCBuy22,07122,071$1,200

Frequently asked questions about IUSB activity

  • Which institutional owners are buying IUSB?

    Institutional owners buying IUSB 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 IUSB activity?

    "Buy" means an investor increased their reported position in IUSB compared to the prior reporting period. This reflects growing exposure to ISHARES CORE TOTAL BOND ETF (IUSB) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in IUSB increasing?

    Institutional interest in IUSB 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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