Stock ownership · SEC 13F · Q4 2025

ISHARES MBS ETF

A breakdown of ISHARES MBS ETF's institutional base (CUSIP 464288588): the holders, the concentration among them, and what changed last quarter.

$10.1M
Reported value
7
Institutions
100%
Top-5 share

The verdict

According to SEC Form 13F-HR filings in this corpus, ISHARES MBS ETF ranks #444 of 775 tracked securities by reported institutional value (largest first), matching the /stocks listing among names with ≥5 reporting holders. 7 institutions report $10.1M as of Q4 2025, with ownership held overwhelmingly by a small core of institutions.

7
institutions hold it
$10.1M
reported 13F value
100%
held by top 5
#444
of 775 by value

Based on long positions reported to the SEC as of Q4 2025; 13F omits shorts, options and non-US holdings.

According to SEC Form 13F-HR filings in this corpus, ISHARES MBS ETF ranks #444 of 775 tracked securities by reported institutional value (largest first), matching the /stocks listing among names with ≥5 reporting holders.

How 13F ownership is computed · All tracked stocks · Concentration rankings

SEC Form 13F-HR ownership desk

CUSIP 464288588 · Q4 2025 $10M reported

VALUE-LIGHT · HOLDERS-FOCUS · CONC-DOM · PHOTO-FINISH · ACTIVITY-MID · BOOK-FULL

  • VALUE-LIGHT #444/775
  • HOLDERS-FOCUS 7 filers
  • CONC-DOM 100% top-5
  • PHOTO-FINISH THE CIGNA GROUP
  • ACTIVITY-MID 5 new
  • BOOK-FULL 8Q history

Photo-finish peer on reported value: THE CIGNA GROUP

Read with: Ownership concentration guide - ISHARES MBS ETF's top-five holders account for 100% of reported value — read concentration before treating any single filer as a signal.

Reported-value neighbourhood · ISHARES MBS ETF

Nearest tracked securities by aggregate 13F reported value, not a full corpus reprint.

PACER FDS TR · near$10MTHE TRADE DESK · near$10MTHE CIGNA GROUP · near$10MISHARES MBS ETF · this stock$10MTRACTOR SUPPLY · near$10M
Aggregate reported institutional value ($)
Largest institutional holders of ISHARES MBS ETF
  1. 1
    Alternative Investment Advisors, LLC. $6.7M
  2. 2
    Barnes Wealth Management Group, Inc $2.5M
  3. 3
    Bell Investment Advisors, Inc $479K
  4. 4
    ARWA LLC $329K
  5. 5
    MidFirst Bank $14K
  6. 6
    Strategic Investment Solutions, Inc. /IL $3K

Top 6 reported holders by value · Q4 2025

Institutional ownership over time

The number of institutions reporting a ISHARES MBS ETF position has fallen from 8 to 7 over the last 8 quarters of 13F filings.

2468101214 Q1'24Q2'24Q3'24Q4'24Q1'25Q2'25Q3'25Q4'25 7
Distinct 13F filers holding ISHARES MBS ETF, by quarter

Top Institutional Holders

# Institution Shares Value Share of reported
1 Alternative Investment Advisors, LLC. 70,466 $6.7M 66.7%
2 Barnes Wealth Management Group, Inc 26,490 $2.5M 25.1%
3 Bell Investment Advisors, Inc 5,032 $479K 4.8%
4 ARWA LLC 3,451 $329K 3.3%
5 MidFirst Bank 147 $14K 0.1%
6 Strategic Investment Solutions, Inc. /IL 33 $3K 0.0%
7 CHELSEA COUNSEL CO 15 $1K 0.0%

Investment Discretion

SEC Form 13F requires each institutional filer to report whether it exercises sole or shared discretion over a position. Among ISHARES MBS ETF's reported holders for Q4 2025, by reported value:

Sole discretion (SOLE)
100.0%

Latest Quarter Activity · Q4 2025

New positions (5)

Alternative Investment Advisors, LLC. $6.7M
Barnes Wealth Management Group, Inc $2.5M
ARWA LLC $329K
MidFirst Bank $14K
Strategic Investment Solutions, Inc. /IL $3K

Complete exits (10)

CIBC Private Wealth Group LLC exited
Manhattan West Asset Management, LLC exited
JPMORGAN CHASE & CO (JPM, AMJB, VYLD, JPM-PC, JPM-PD, JPM-PJ, JPM-PK, JPM-PL, JPM-PM) exited
CIBC Bancorp USA Inc. exited
OARSMAN CAPITAL, INC. exited
Petix & Botte Co exited

Frequently Asked Questions

How many institutions hold ISHARES MBS ETF?▼
ISHARES MBS ETF is held by 7 institutional investors per the latest SEC Form 13F filings as of Q4 2025.
Where does ISHARES MBS ETF sit among tracked securities?▼
According to SEC Form 13F-HR filings in this corpus, ISHARES MBS ETF ranks #444 of 775 tracked securities by reported institutional value (largest first), matching the /stocks listing among names with ≥5 reporting holders. The ordinal is recomputed live among securities with ≥5 reporting holders. See /methodology/#corpus-placement.
What is the total institutional value of ISHARES MBS ETF?▼
Institutions report $10.1M of ISHARES MBS ETF as of Q4 2025.
How concentrated is ownership of ISHARES MBS ETF?▼
The top five institutional holders account for 100% of the reported institutional value in ISHARES MBS ETF, making ownership held overwhelmingly by a small core of institutions.
Who is the largest institutional holder of ISHARES MBS ETF?▼
Alternative Investment Advisors, LLC. is the largest reported holder of ISHARES MBS ETF with $6.7M across 70,466 shares as of Q4 2025.

Nationwide stocks with similar institutional value or holder count

Two 13F-derived peer sets for ISHARES MBS ETF: nearest aggregate reported value and nearest institutional holder count, not catalog browse links.

Similar reported value

Nearest stocks by aggregate 13F reported value ($10.1M here).

THE CIGNA GROUP $10.1M THE TRADE DESK INC $10.1M PACER FDS TR $10.1M TRACTOR SUPPLY CO $10.0M

Similar holder count

Nearest stocks by number of disclosing 13F holders (7 here).

AFLAC INC 7 ALNYLAM PHARMACEUTICALS INC 7 AMETEK INC 7 ANALOG DEVICES INC 7

Source: U.S. Securities and Exchange Commission (SEC) - EDGAR Form 13F-HR institutional holdings filings · Q4 2025 13F-HR discloses long US-listed equity positions of managers with $100M+ qualifying assets, filed within 45 days of period end. Short positions and most derivatives are not disclosed.

PlainFundData is rendered directly from SEC EDGAR Form 13F-HR institutional holdings filings, no number is typed in by an editor. Holder lists, concentration, and reported value on this page are aggregated live from those 13F-HR extracts. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2026-05-16.