Perspective Therapeutics (CATX): Millennium group reports over 5% beneficial stake

Rhea-AI Filing Summary

Perspective Therapeutics, Inc. is the subject of an amended ownership report by entities affiliated with Millennium Management. Integrated Core Strategies (US) LLC reports beneficial ownership of 5,888,184 shares of common stock, representing 5.2% of the class. Millennium Management LLC, Millennium Group Management LLC and Israel A. Englander each report beneficial ownership of 6,316,545 shares, or 5.5% of the outstanding common stock.

All reporting persons list 0 shares with sole voting or dispositive power and instead report shared voting and shared dispositive power over their respective share amounts. The securities are held by entities subject to voting control and investment discretion by Millennium Management LLC and/or other investment managers controlled by Millennium Group Management LLC and Mr. Englander, and the group states that this should not be construed as an admission of beneficial ownership of the underlying securities.

Key Figures

Shares beneficially owned by Integrated Core Strategies: 5,888,184 shares Percentage of class held by Integrated Core Strategies: 5.2% Shares beneficially owned by Millennium entities and Englander: 6,316,545 shares +2 more

5 metrics

Shares beneficially owned by Integrated Core Strategies 5,888,184 shares Common stock of Perspective Therapeutics reported with shared voting and dispositive power

Percentage of class held by Integrated Core Strategies 5.2% Percentage of Perspective Therapeutics common stock class

Shares beneficially owned by Millennium entities and Englander 6,316,545 shares Reported by Millennium Management LLC, Millennium Group Management LLC and Israel A. Englander

Percentage of class held by Millennium entities and Englander 5.5% Percentage of Perspective Therapeutics common stock class

Sole voting power (all reporting persons) 0 shares Each reporting person reports no sole voting power over CATX shares

Key Terms

beneficially owned, shared voting power, shared dispositive power, dispositive power, +1 more

5 terms

beneficially owned financial

"Amount beneficially owned: See response to Item 9 on each cover page."

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.

shared voting power financial

"Shared Voting Power 5,888,184.00"

Shared voting power occurs when two or more parties jointly have the right to vote or decide how a block of company shares is cast, like co-owners who must agree before moving a piece of furniture. Investors care because who controls voting rights affects board elections, major corporate decisions and takeover outcomes, and shared control can alter regulatory disclosures and the practical influence any holder has over a company’s direction and value.

shared dispositive power financial

"Shared Dispositive Power 6,316,545.00"

dispositive power financial

"Sole Dispositive Power 0.00"

Dispositive power is the authority to decide the final outcome of an asset, legal claim, contract, or corporate action — in effect the power to dispose of or resolve something. For investors it matters because whoever holds that authority can determine who gets paid, who controls an asset or vote, and how risks and returns are allocated; think of it like holding the key that lets you lock in the winner or loser in a deal.

Joint Filing Agreement regulatory

"Exhibit I: Joint Filing Agreement, dated as of August 12, 2026"

FAQ

What ownership stake in CATX does Integrated Core Strategies (US) LLC report?

Integrated Core Strategies (US) LLC reports beneficial ownership of 5,888,184 CATX shares, representing 5.2% of Perspective Therapeutics’ common stock, all with shared voting and shared dispositive power and no sole voting or dispositive authority.

How many CATX shares do Millennium Management-affiliated entities report owning?

Millennium Management LLC, Millennium Group Management LLC and Israel A. Englander each report 6,316,545 CATX shares, or 5.5% of the common stock, with 0 shares under sole voting or dispositive power and all such powers reported as shared.

Does the Millennium group claim sole voting power over CATX shares?

No. The Millennium-affiliated reporting persons disclose 0 shares of CATX with sole voting power, and instead report shared voting power over either 5,888,184 or 6,316,545 shares, depending on the specific reporting entity’s cover page.

What percentage of CATX does Israel A. Englander report as beneficially owned?

Israel A. Englander reports beneficial ownership of 6,316,545 CATX shares, representing 5.5% of Perspective Therapeutics’ outstanding common stock, all subject to shared voting and dispositive power rather than sole control.

How do the Millennium entities characterize their beneficial ownership of CATX?

They state that CATX securities are held by entities subject to voting control and investment discretion by Millennium Management LLC and other managers, and that this description should not be construed as an admission of beneficial ownership of those securities.

Which entities jointly file the CATX ownership report amendment?

The amendment is jointly filed by Integrated Core Strategies (US) LLC, Millennium Management LLC, Millennium Group Management LLC and Israel A. Englander, under a Joint Filing Agreement dated August 12, 2026.

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Available on EDGAR 08/13/2026 - 07:59 PM Accepted by SEC EDGAR 08/13/2026 - 07:58 PM 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)

Perspective Therapeutics, Inc.

(Name of Issuer)

Common Stock, par value $0.001 per share

(Title of Class of Securities)

46489V302

(CUSIP Number)

08/07/2026

(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): 46489V302

1

Names of Reporting Persons

Integrated Core Strategies (US) 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 0.00
6	Shared Voting Power 5,888,184.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 5,888,184.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

5,888,184.00

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)

5.2 %

12

Type of Reporting Person (See Instructions)

OO

SCHEDULE 13G

CUSIP Number(s): 46489V302

1

Names of Reporting Persons

Millennium 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 0.00
6	Shared Voting Power 6,316,545.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 6,316,545.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

6,316,545.00

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)

5.5 %

12

Type of Reporting Person (See Instructions)

OO

SCHEDULE 13G

CUSIP Number(s): 46489V302

1

Names of Reporting Persons

Millennium Group 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 0.00
6	Shared Voting Power 6,316,545.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 6,316,545.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

6,316,545.00

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)

5.5 %

12

Type of Reporting Person (See Instructions)

OO

SCHEDULE 13G

CUSIP Number(s): 46489V302

1

Names of Reporting Persons

Israel A. Englander

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

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 6,316,545.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 6,316,545.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

6,316,545.00

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)

5.5 %

12

Type of Reporting Person (See Instructions)

IN

SCHEDULE 13G

Item 1.
(a)	Name of issuer: Perspective Therapeutics, Inc.
(b)	Address of issuer's principal executive offices: 2401 Elliott Avenue, Suite 320, Seattle, Washington 98121
Item 2.
(a)	Name of person filing: Integrated Core Strategies (US) LLC Millennium Management LLC Millennium Group Management LLC Israel A. Englander
(b)	Address or principal business office or, if none, residence: Integrated Core Strategies (US) LLC c/o Millennium Management LLC 399 Park Avenue New York, New York 10022 Millennium Management LLC 399 Park Avenue New York, New York 10022 Millennium Group Management LLC 399 Park Avenue New York, New York 10022 Israel A. Englander c/o Millennium Management LLC 399 Park Avenue New York, New York 10022
(c)	Citizenship: Integrated Core Strategies (US) LLC - Delaware Millennium Management LLC - Delaware Millennium Group Management LLC - Delaware Israel A. Englander - United States
(d)	Title of class of securities: Common Stock, par value $0.001 per share
(e)	CUSIP No.: 46489V302
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: See response to Item 9 on each cover page.
(b)	Percent of class: See response to Item 11 on each cover page.
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: See response to Item 5 on each cover page.
	(ii) Shared power to vote or to direct the vote: See response to Item 6 on each cover page.
	(iii) Sole power to dispose or to direct the disposition of: See response to Item 7 on each cover page.
	(iv) Shared power to dispose or to direct the disposition of: See response to Item 8 on each cover page. The securities disclosed herein as potentially beneficially owned by Millennium Management LLC, Millennium Group Management LLC and Mr. Englander are held by entities subject to voting control and investment discretion by Millennium Management LLC and/or other investment managers that may be controlled by Millennium Group Management LLC (the managing member of Millennium Management LLC) and Mr. Englander (the sole voting trustee of the managing member of Millennium Group Management LLC). The foregoing should not be construed in and of itself as an admission by Millennium Management LLC, Millennium Group Management LLC or Mr. Englander as to beneficial ownership of the securities held by such entities.
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.
	Not Applicable
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	Not Applicable
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 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.

Integrated Core Strategies (US) LLC

Signature:	/s/ Gil Raviv
Name/Title:	Gil Raviv, Global General Counsel
Date:	08/12/2026

Millennium Management LLC

Signature:	/s/ Gil Raviv
Name/Title:	Gil Raviv, Global General Counsel
Date:	08/12/2026

Millennium Group Management LLC

Signature:	/s/ Gil Raviv
Name/Title:	Gil Raviv, Global General Counsel
Date:	08/12/2026

Israel A. Englander

Signature:	/s/ Israel A. Englander
Name/Title:	Israel A. Englander
Date:	08/12/2026

Comments accompanying signature: ** INTEGRATED CORE STRATEGIES (US) LLC By: Integrated Holding Group LP, its Managing Member By: Millennium Management LLC, its General Partner

Exhibit Information

Exhibit I: Joint Filing Agreement, dated as of August 12, 2026, by and among Integrated Core Strategies (US) LLC, Millennium Management LLC, Millennium Group Management LLC and Israel A. Englander.