$CATX

$1.25 +$0.06 (5.04%) Close

$CATX Overview Financial Statements SEC Filings Executives News Red Flags Capital Raising Ownership Insider Transactions Congressional Trades

Ownership

13F as of Q2 2026 · 114.2M shares outstanding

Who owns CATX?

By type of holder

Institutions 76.4% Insiders 23.6% Everyone else 0.0%

Concentration Top 10 holders own 58.8%

Avidity Partners Management LP 5.5% · BlackRock, Inc. 8.3%

Institutional ownership

76.4%

+1.1 pts vs last qtr

Institutional holders

130

-8 vs last qtr

Net shares bought

+1.2M

by institutions in Q2 2026

New / sold out

23 / 31

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

BlackRock, Inc. +4.1M
State Street Corp +2.9M

Biggest sellers in Q2 2026

Avidity Partners Management LP −5.8M
Opaleye Management Inc. SOLD OUT −4.7M

Who is planning to sell?

No insider has filed a notice of proposed sale (Form 144) for Perspective Therapeutics, Inc. in the last 12 months.

Is your stake being diluted?

Diluted share count, FY2023–FY2025

+175.8%

+66.07% a year

Each share's claim on the business

−63.7%

shrank without buying or selling a share

Spent on buybacks vs paid in stock

— vs $18.1M

over 3 fiscal years

Diluted shares, split-adjusted

Buybacks Stock-based comp

How patient are the owners?

Institutional shares by how long they've been held

5+ years32% 3–5 years1% 1–3 years33% Under 1 year34%

Quarterly turnover

21.1%

of institutional shares changed hands

Top 10 managers, median time held

2.3 years

Super Investors

Investment managers reporting CATX on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
AP Avidity Partners Management LP	6.3M	5.52%	−5.8M (−47.9%)	2024	3.4%
Shares held by quarter Peak holding12.1M (Q1'26) Change over 8 quarters+2.9M Share of the company5.520% Avidity Partners Management LP's full portfolio →
B BlackRock, Inc.	9.5M	8.32%	+4.1M (+77.5%)	≤2021	0.0%
Shares held by quarter Peak holding9.5M (Q2'26) Change over 8 quarters+5.5M Share of the company8.320% BlackRock, Inc.'s full portfolio →

Avidity Partners Management LP

6.3M

% of company

5.52%

Change vs last qtr

−5.8M (−47.9%)

Held since

2024

BlackRock, Inc.

9.5M

% of company

8.32%

Change vs last qtr

+4.1M (+77.5%)

Held since

≤2021

28 more super investors behind a free account

See every manager holding Perspective Therapeutics, Inc., how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting CATX on Form N-PORT; together they hold 18.4% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
SS State Street(R) SPDR(R) S&P(R) Biotech ETF SPDR Series Trust	$13.8M	4.0M	3.54%	0.13%	June 30, 2026
VT Vanguard Total Stock Market Index Fund Vanguard Index Funds	$11.3M	3.3M	2.90%	0.00%	June 30, 2026

State Street(R) SPDR(R) S&P(R) Biotech ETF

SPDR Series Trust

Position value

$13.8M

% of company

3.54%

% of the fund

0.13%

As of

June 30, 2026

Vanguard Total Stock Market Index Fund

Vanguard Index Funds

Position value

$11.3M

% of company

2.90%

% of the fund

0.00%

As of

June 30, 2026

23 more funds behind a free account

See every fund holding Perspective Therapeutics, Inc. and how much of the fund the position is.

Insiders and 5%+ holders

From Forms 3/4/5 and Schedules 13D/G

Holder	Shares	% of company	Change vs last qtr	8 quarters	Held since	% of their book
LH Lantheus Holdings, Inc. 5%+ holder 13D · 7.7%	8.7M	7.66%	—	—	—	—
This holder reports through Schedule 13D/G, not a quarterly 13F. Share of the company7.660% Disclosed stake13D · 7.7% View the 13D/G filing →
LA Lantheus Alpha Therapy, LLC 5%+ holder 13D · 7.7%	8.7M	7.66%	—	—	—	—
This holder reports through Schedule 13D/G, not a quarterly 13F. Share of the company7.660% Disclosed stake13D · 7.7% View the 13D/G filing →

Lantheus Holdings, Inc.

5%+ holder13D · 7.7%

8.7M

% of company

7.66%

Change vs last qtr

—

Held since

—

Lantheus Alpha Therapy, LLC

5%+ holder13D · 7.7%

8.7M

% of company

7.66%

Change vs last qtr

—

Held since

—

6 more holders behind a free account

See every insider and 5%+ holder of Perspective Therapeutics, Inc..

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