BlackRock (BLK) discloses 684,469 shares (7.4%) in iShares GNMA ETF

Rhea-AI Filing Summary

BlackRock, Inc. files Amendment No. 1 to Schedule 13G/A reporting beneficial ownership of 684,469 shares of iShares GNMA Bond ETF common stock. The filing states this equals 7.4% of the class and shows sole voting and dispositive power over 684,469 shares. The cover lists 03/31/2026 as the reporting date and the form is signed on 04/24/2026.

Insights

Institutional Ownership Analyst

BlackRock reports a significant passive holding in iShares GNMA Bond ETF.

The Schedule 13G/A amendment lists 684,469 shares representing 7.4% of the common stock, with BlackRock claiming sole voting and dispositive power. The filing identifies an affiliate interest: iShares Yield Optimized Bond ETF holds more than 5%.

Timing: the report carries a 03/31/2026 reporting date and was signed 04/24/2026. Future disclosures may clarify which BlackRock business units hold these shares and any changes to ownership.

Key Figures

Shares beneficially owned: 684,469 shares Percent of class: 7.4% Reporting date: 03/31/2026 +2 more

5 metrics

Shares beneficially owned 684,469 shares Amount beneficially owned as reported on Schedule 13G/A

Percent of class 7.4% Percent of common stock reported in Item 4

Reporting date 03/31/2026 Cover page reporting date for the Schedule 13G/A

Signature date 04/24/2026 Date the filing was signed by Spencer Fleming

CUSIP 46429B333 CUSIP for iShares GNMA Bond ETF common stock

Key Terms

Schedule 13G/A, beneficially owned, Investment Company Act

3 terms

Schedule 13G/A regulatory

"Amendment No. 1 to Schedule 13G/A reporting beneficial ownership"

A Schedule 13G/A is an amended public filing with the U.S. securities regulator that updates a previous Schedule 13G, disclosing when an individual or group holds a substantial (typically over 5%) stake in a company and is claiming a passive, non‑controlling intent. Investors monitor these updates because rising or falling holdings can signal changing confidence, potential future moves, or shifts in voting power — like watching a public ledger where large shareholders quietly adjust their positions.

beneficially owned financial

"Amount beneficially owned: 684,469 (b) Percent of class: 7.4 %"

Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.

Investment Company Act regulatory

"A listing of the shareholders of an investment company registered under the Investment Company Act"

The Investment Company Act is a law that sets rules for businesses whose main activity is managing and selling pooled money, such as mutual funds and other investment funds. It matters to investors because it requires clear reporting, limits managers from putting their own interests ahead of clients, and mandates safekeeping and oversight of assets—similar to safety inspections and traffic rules that help keep shared vehicles reliable and trustworthy.

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SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 1)

iShares GNMA Bond ETF

(Name of Issuer)

Common Stock

(Title of Class of Securities)

46429B333

(CUSIP Number)

03/31/2026

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

schemaVersion:

SCHEDULE 13G

CUSIP Number(s): 46429B333

1

Names of Reporting Persons

BlackRock, Inc.

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 684,469.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 684,469.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

684,469.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

7.4 %

12

Type of Reporting Person (See Instructions)

HC

SCHEDULE 13G

Item 1.
(a)	Name of issuer: iShares GNMA Bond ETF
(b)	Address of issuer's principal executive offices: 400 HOWARD STREET SAN FRANCISCO CA 94105
Item 2.
(a)	Name of person filing: BlackRock, Inc. In accordance with SEC Release No. 34-39538 (January 12, 1998), this Schedule 13G reflects the securities beneficially owned, or deemed to be beneficially owned, by certain business units (collectively, the "Reporting Business Units") of BlackRock, Inc. and its subsidiaries and affiliates. It does not include securities, if any, beneficially owned by other business units whose beneficial ownership of securities are disaggregated from that of the Reporting Business Units in accordance with such release.
(b)	Address or principal business office or, if none, residence: BlackRock, Inc., 50 Hudson Yards New York, NY 10001
(c)	Citizenship: See Item 4 of Cover Page
(d)	Title of class of securities: Common Stock
(e)	CUSIP No.: 46429B333
Item 4.	Ownership
(a)	Amount beneficially owned: 684469
(b)	Percent of class: 7.4 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 684469
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 684469
	(iv) Shared power to dispose or to direct the disposition of: 0
Item 5.	Ownership of 5 Percent or Less of a Class.
	Not Applicable
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	If any other person is known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, such securities, a statement to that effect should be included in response to this item and, if such interest relates to more than 5 percent of the class, such person should be identified. A listing of the shareholders of an investment company registered under the Investment Company Act of 1940 or the beneficiaries of employee benefit plan, pension fund or endowment fund is not required. The interest of 1 such person, iShares Yield Optimized Bond ETF, in the common stock of iShares GNMA Bond ETF is more than five percent of the total outstanding common stock.
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	If a parent holding company has filed this schedule, pursuant to Rule 13d-1(b)(ii)(G), so indicate under Item 3(g) and attach an exhibit stating the identity and the Item 3 classification of the relevant subsidiary. If a parent holding company has filed this schedule pursuant to Rule 13d-1(c) or Rule 13d-1(d), attach an exhibit stating the identification of the relevant subsidiary. See Exhibit 99
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

BlackRock, Inc.

Signature:	Spencer Fleming
Name/Title:	Managing Director
Date:	04/24/2026

Exhibit Information

Exhibit 24: Power of Attorney Exhibit 99: Item 7

FAQ

What stake does BlackRock (BLK) report in iShares GNMA Bond ETF?

BlackRock reports beneficial ownership of 684,469 shares, representing 7.4% of the common stock. This appears in Amendment No. 1 to Schedule 13G/A with reporting date 03/31/2026 and signature dated 04/24/2026.

Does BlackRock have voting control over the reported shares?

Yes. The filing states BlackRock has sole voting power and sole dispositive power over 684,469 shares. Shared voting and dispositive powers are reported as 0.

Is any other entity reported as holding over 5% of iShares GNMA Bond ETF?

Yes. The schedule identifies iShares Yield Optimized Bond ETF as a person whose interest in the common stock exceeds 5%. No additional holder list is required under the Investment Company Act disclosures.

What dates are associated with this Schedule 13G/A filing?

The cover shows the reporting date as 03/31/2026, and the schedule is signed by Spencer Fleming on 04/24/2026. Amendment No. 1 modifies a prior 13G filing.

Who signed the Schedule 13G/A amendment for BlackRock?

The amendment is signed by Spencer Fleming, Managing Director, with the signature date shown as 04/24/2026 on the filing.