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Insider · CIK 0001397331

Robert F Williamson III

director

Files at CATX (Perspective Therapeutics, Inc.). First filing Nov 27, 2024, latest Nov 14, 2025.

In brief

Robert F Williamson III files SEC Form 4 as director at CATX (Perspective Therapeutics, Inc.). Since Nov 27, 2024, Robert F Williamson III has reported 3 open-market buys worth $175k and 0 open-market sells worth $0, the latest filed on Nov 14, 2025.

A track record needs three past buys with six months of prices behind them; Robert F Williamson III has 0, so none is measured yet.

The newest scored trade: bought $20k of CATX on Nov 12, 2025, filed Nov 14, 2025, scored 41 (moderate). In the last 12 months: 1 buy worth $20k and 0 sells worth $0.

Track record
Not enough history
Fewer than three past buys with six months of prices.
Median 6-month excess
-
after past buys, n = 0
Hit rate
-
past buys that beat the index over 6 months
Open-market trades
3 / 0
$175k bought, $0 sold

Where the trades landed

Last year at the company this insider has traded most, with each buy and sell on the bar it happened.

CATX: Perspective Therapeutics, Inc.

CATXOct 12, 2026 · close 2.52

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™

Signals

This insider’s open-market buys and sells, scored.

ScoreCompanyValueHoldingsPrice contextFiled
41Moderate
CATXbuy 2
Perspective Therapeutics, Inc.
$20k
9,498 shares
+2595%+24% from low-80% from high
69Notable
CATXbuy 4
Perspective Therapeutics, Inc.
$132k
60,337 shares
+124%0% from low-86% from high
30Weak
CATXbuy 4
Perspective Therapeutics, Inc.
$23k
6,266 shares
+1%-

Transactions

Every row this insider has filed, 6 in all, newest first.

DateCompanyTransactionSharesPriceValueHoldings afterFiled
Mar 2, 2026CATX
Perspective Therapeutics, Inc.
AGrant or award
Stock option (right to buy)derivative
+50,000$0.00$050,000Mar 4, 2026
Nov 12, 2025CATX
Perspective Therapeutics, Inc.
POpen-market purchase
Common Stockindirect: RFW3 Revocable Trust
+9,498$2.10$20k9,864Nov 14, 2025
Mar 28, 2025CATX
Perspective Therapeutics, Inc.
POpen-market purchase
Common Stock
+22,192$2.27$50k70,837Apr 1, 2025
Mar 31, 2025CATX
Perspective Therapeutics, Inc.
POpen-market purchase
Common Stock
+38,145$2.14$82k108,982Apr 1, 2025
Nov 25, 2024CATX
Perspective Therapeutics, Inc.
POpen-market purchase
Common Stock
+3,647$3.62$13k427,439Nov 27, 2024
Nov 25, 2024CATX
Perspective Therapeutics, Inc.
POpen-market purchase
Common Stock
+2,619$3.67$9,612430,058Nov 27, 2024

Questions about Robert F Williamson III

Answered from the filings on this page, as of the latest one.

Is Robert F Williamson III buying or selling?

In the last 12 months Robert F Williamson III reported 1 open-market buy worth $20k and 0 open-market sells worth $0 on SEC Form 4; the latest was bought $20k of CATX on Nov 12, 2025. Grants, option exercises and tax withholding are not counted.

How did Robert F Williamson III's past buys perform?

Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Robert F Williamson III has 0.

Where does Robert F Williamson III file Form 4?

Robert F Williamson III has filed Form 4 at CATX (Perspective Therapeutics, Inc.). A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.

Robert F Williamson III: insider trades and track record | InsiderTell