Perspective Therapeutics, Inc. - Common Stock, par value $0.001 per share (CATX)

Q: What does CUSIP 46489V302 represent in this 13F holders report?

CUSIP 46489V302 is the security identifier for CATX - Perspective Therapeutics, Inc. - Common Stock, par value $0.001 per share used to aggregate holder disclosures.

Q: How many institutions held CATX - Perspective Therapeutics, Inc. - Common Stock, par value $0.001 per share in Q1 2026?

136 institutional investors reported CATX - Perspective Therapeutics, Inc. - Common Stock, par value $0.001 per share for Q1 2026. Use the holders table for investor-level position and value details.

CUSIP: 46489V302

Q1 2026 13F Holders as of 31 Mar 2026

Security type / class: Equity / Common Stock, par value $0.001 per share
Total 13F shares: 78,563,691
Total 13F value: $327,483,394
Share change: +36,457,944
Put/Call ratio: 87%
SEC-reported price per share: $4.17
Number of holders: 136
Value change: +$156,403,502
Number of buys: 81
Number of sells: 51
Shares outstanding: 113,811,233

Security key

46489V302

Report period

Q1 2026

Institutions

136

Top holders

CATX full security history Ownership snapshot Full 13F holder table Newer quarter: Q2 2026 Previous quarter: Q4 2025 Perspective Therapeutics, Inc. SEC filings Perspective Therapeutics, Inc. company facts

Broader feeds

Latest 13F filings Latest 13D/G filings Investors directory

Reporting periods

Holder history for CUSIP 46489V302

Newer quarter: Q2 2026 Previous quarter: Q4 2025

Recent filing periods:

Q2 2026 Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024

Ownership snapshot

Top reported holders of CATX - Perspective Therapeutics, Inc. - Common Stock, par value $0.001 per share (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader

Commodore Capital LP

Disclosed value leader

Commodore Capital LP

Comparable rows

15/15

Latest evidence

31 Mar 2026

13D/G 13F Lead comparable stake: 9.9% 13D/G row: Commodore Capital LP Showing 1-6 of 15 holder rows.

Quick read

Commodore Capital LP leads the comparable SEC ownership view at 9.9%.

15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens Commodore Capital LP's linked filing trail.

Comparable ownership Top 5

Commodore Capital LP 9.9%

TCG Crossover GP II, LLC 6.9%

Qatar Investment Authority 6.2%

Avidity Partners Management LP 5.3%

BlackRock, Inc. 4.6%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-6 of 15 holder rows

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
Commodore Capital LP	13D/G 13D/G	9.9%	$29,968,780 11,939,753 shares	$0	02 Feb 2026
TCG Crossover GP II, LLC	13D/G Chen Yu 13D/G	6.9%	$21,767,809 7,915,567 shares	$0	03 Feb 2026
Qatar Investment Authority	13D/G 13D/G	6.2%	$19,451,597 7,073,308 shares	$0	04 Feb 2026
Avidity Partners Management LP	13D/G 13F Company 13D/G 13F	5.3%	$29,523,995 6,049,999 shares	+$15,659,798	20 Feb 2026
BlackRock, Inc.	13D/G 13F Company 13D/G 13F	4.6%	$21,898,184 5,251,363 shares	$0	31 Mar 2026
MORGAN STANLEY	13D/G 13F Company 13D/G 13F	2.6%	$13,080,088 2,959,296 shares	-$6,641,479	31 Mar 2026

How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q1 2026

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions

136

78,563,691

Rows available

136

Investor	Option	Weight %	Change %	SEC-reported value	* Price	Shares	Share Change	Activity	Report Period

^* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.

Compare Q1 2026 vs Q4 2025 Across Filers

Q4 2025 holders

114

Q1 2026 holders

136

Holder diff

Investor	Q4 2025 Shares	Q1 2026 Shares	Share Diff	Share Chg %	Q4 2025 value	Q1 2026 value	Value change	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend