Jim Simons
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Jim Simons’s Perspective Therapeutics CATX Stock Holding History

Jim Simons’s Portfolio CATX Stock Details CATX Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		– Sell
-352,493
Closed -$969K – 3293
2025
Q4 		$969K Buy
+352,493
New +$1.01M ﹤0.01% 2300
2025
Q2 		– Sell
-163,460
Closed -$348K – 3582
2025
Q1 		$348K Buy
+163,460
New +$491K ﹤0.01% 2870
2024
Q3 		– Sell
-61,660
Closed -$615K – 3552
2024
Q2 		$615K Buy
61,660
+58,485
+1,842% +$846K ﹤0.01% 2599
2024
Q1 		$38K Sell
3,175
-27,500
-90% -$234K ﹤0.01% 3522
2023
Q4 		$123K Sell
30,675
-6,090
-17% -$17.1K ﹤0.01% 3252
2023
Q3 		$101K Sell
36,765
-6,928
-16% -$32.3K ﹤0.01% 3239
2023
Q2 		$292K Buy
43,693
+2,040
+5% +$12.4K ﹤0.01% 3136
2023
Q1 		$266K Buy
41,653
+3,740
+10% +$15.3K ﹤0.01% 3166
2022
Q4 		$94K Buy
37,913
+700
+2% +$2.31K ﹤0.01% 3640
2022
Q3 		$86K Sell
37,213
-496
-1% -$1.7K ﹤0.01% 3639
2022
Q2 		$117K Sell
37,709
-4,023
-10% -$12.3K ﹤0.01% 3807
2022
Q1 		$151K Sell
41,732
-56,359
-57% -$206K ﹤0.01% 3716
2021
Q4 		$380K Sell
98,091
-21,272
-18% -$113K ﹤0.01% 3226
2021
Q3 		$753K Sell
119,363
-138,667
-54% -$945K ﹤0.01% 2700
2021
Q2 		$2.06M Sell
258,030
-67,993
-21% -$595K ﹤0.01% 2244
2021
Q1 		$3.55M Buy
326,023
+191,170
+142% +$2.89M ﹤0.01% 1861
2020
Q4 		$607K Buy
134,853
+83,783
+164% +$370K ﹤0.01% 2736
2020
Q3 		$298K Sell
51,070
-56,735
-53% -$370K ﹤0.01% 2999
2020
Q2 		$599K Buy
107,805
+39,389
+58% +$253K ﹤0.01% 2805
2020
Q1 		$363K Buy
68,416
+43,761
+177% +$330K ﹤0.01% 2902
2019
Q4 		$154K Buy
+24,655
New +$108K ﹤0.01% 3241

Other funds holding CATX

APM
Avidity Partners Management Dallas, Texas $936M AUM 195% 1-Year Est. Return
TCM
TCG Crossover Management Palo Alto, California $3.5B AUM 1,165.83% 1-Year Est. Return
CC
Commodore Capital New York $1.73B AUM 298.96% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
OM
Opaleye Management Boston, Massachusetts $759M AUM 124.8% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Millennium Management
Millennium Management New York $240B AUM 35.51% 1-Year Est. Return
Citadel Advisors
Citadel Advisors Miami, Florida $618B AUM 30.34% 1-Year Est. Return
AAA
Affinity Asset Advisors New York $1.94B AUM 374.45% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Jim Simons's CATX Position: Q1 2026 in Review

Jim Simons sold out of Perspective Therapeutics (CATX) in Q1 2026, closing a stake of 352,493 shares — an estimated $969K sold.

Jim Simons first reported a position in CATX in Q4 2019 and held it in 21 quarters. The position peaked at $3.55M in Q1 2021. 138 funds tracked by Wall St. Rank hold CATX as of Q1 2026.

  • Jim Simons reported no remaining Perspective Therapeutics position as of Q1 2026 after selling out during the quarter.
  • Jim Simons sold 352,493 Perspective Therapeutics shares in Q1 2026, an estimated $969K.
  • Jim Simons first reported a position in Perspective Therapeutics in Q4 2019 and held it in 21 quarters.
  • Jim Simons's Perspective Therapeutics position peaked at $3.55M in Q1 2021.
  • 138 funds tracked by Wall St. Rank held Perspective Therapeutics as of Q1 2026.

Based on Renaissance Technologies's 13F filing for Q1 2026, filed 14 May 2026.