Myriad Genetics: BlackRock reports 8.6% stake

The reported position gives BlackRock sole voting power over 7,270,669 shares and sole dispositive power over 8,219,061 shares.

Rhea-AI Filing Summary

Myriad Genetics Inc's common stock is the subject of an amended ownership report stating that BlackRock Portfolio Management LLC beneficially owned 8,219,061 shares, or 8.6%, as of September 30, 2026. The reported business units had sole voting power over 7,270,669 shares and sole dispositive power over 8,219,061 shares; shared voting and dispositive power were each zero.

The reported position reflects certain business units of BlackRock, Inc. and its subsidiaries and affiliates, excluding securities beneficially owned by other business units whose holdings are disaggregated. The report also states that various persons may receive dividends or sale proceeds, but no one person's interest exceeds 5% of Myriad's outstanding common shares.

Key Figures

Beneficial ownership: 8,219,061 shares Percent of class: 8.6% Sole voting power: 7,270,669 shares +1 more

4 metrics

Beneficial ownership 8,219,061 shares As of September 30, 2026

Percent of class 8.6% Myriad Genetics Inc common stock

Sole voting power 7,270,669 shares Reported ownership

Sole dispositive power 8,219,061 shares Reported ownership

Key Terms

beneficial ownership, sole power to vote, sole power to dispose

3 terms

beneficial ownership financial

"Amount beneficially owned: 8219061"

Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.

sole power to vote financial

"Sole power to vote or to direct the vote"

sole power to dispose financial

"Sole power to dispose or to direct the disposition"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many MYGN shares did BlackRock Portfolio Management LLC report beneficially owning?

BlackRock Portfolio Management LLC reported beneficial ownership of 8,219,061 shares of Myriad Genetics Inc common stock, or 8.6% of the class, as of September 30, 2026.

What voting and disposition power did BlackRock report over MYGN shares?

The reported business units had sole voting power over 7,270,669 shares and sole dispositive power over 8,219,061 shares. Shared voting power and shared dispositive power were each zero.

AI-generated analysis. How Rhea-AI works. Not financial advice.

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

Available on EDGAR 10/27/2026 - 04:11 PM EDT Accepted by SEC EDGAR 10/27/2026 - 04:09 PM EDT Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 1)

MYRIAD GENETICS INC

(Name of Issuer)

Common Stock

(Title of Class of Securities)

62855J104

(CUSIP Number)

09/30/2026

(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): 62855J104

1

Names of Reporting Persons

BlackRock Portfolio Management LLC

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 7,270,669.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 8,219,061.00
8	Shared Dispositive Power 0.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

8,219,061.00

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)

8.6 %

12

Type of Reporting Person (See Instructions)

HC

SCHEDULE 13G

Item 1.
(a)	Name of issuer: MYRIAD GENETICS INC
(b)	Address of issuer's principal executive offices: 322 NORTH 2200 WEST SALT LAKE CITY UT 84116
Item 2.
(a)	Name of person filing: BlackRock Portfolio Management LLC 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 Portfolio Management LLC, 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.: 62855J104
Item 4.	Ownership
(a)	Amount beneficially owned: 8219061
(b)	Percent of class: 8.6 %
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 7270669
	(ii) Shared power to vote or to direct the vote: 0
	(iii) Sole power to dispose or to direct the disposition of: 8219061
	(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. Various persons have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of the common stock of MYRIAD GENETICS INC. No one person's interest in the common stock of MYRIAD GENETICS INC is more than five percent of the total outstanding common shares.
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 Portfolio Management LLC

Signature:	Spencer Fleming
Name/Title:	Managing Director
Date:	10/27/2026

Exhibit Information

Exhibit 24: Power of Attorney Exhibit 99: Item 7