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XTX Topco’s Actinium Pharmaceuticals ATNM Stock Holding History

XTX Topco’s Portfolio ATNM Stock Details ATNM Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$13.5K Sell
13,731
-16,479
-55% -$19K ﹤0.01% 3984
2026
Q1 		$30.1K Buy
30,210
+4,234
+16% +$5.04K ﹤0.01% 3451
2025
Q4 		$35.3K Buy
25,976
+6,015
+30% +$8.78K ﹤0.01% 2917
2025
Q3 		$31.9K Buy
19,961
+6,712
+51% +$10.9K ﹤0.01% 2252
2025
Q2 		$18.5K Buy
+13,249
New +$19.8K ﹤0.01% 2177
2025
Q1 		– Sell
-25,606
Closed -$32.3K – 2400
2024
Q4 		$32.3K Sell
25,606
-116,887
-82% -$181K ﹤0.01% 1969
2024
Q3 		$268K Buy
+142,493
New +$563K 0.02% 1264

Other funds holding ATNM

Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
CFM
Compass Financial Management Tampa, Florida $829M AUM
Millennium Management
Millennium Management New York $276B AUM 44.8% 1-Year Est. Return
Acadian Asset Management
Acadian Asset Management Boston, Massachusetts $84.2B AUM 55.88% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $72.6B AUM 54.88% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Two Sigma Investments
Two Sigma Investments New York $138B AUM 41.87% 1-Year Est. Return
GS
Gagnon Securities New York $519M AUM 44.91% 1-Year Est. Return
Vanguard Fiduciary Trust
Vanguard Fiduciary Trust Malvern, Pennsylvania $454B AUM

XTX Topco's ATNM Position: Q2 2026 in Review

XTX Topco reduced its Actinium Pharmaceuticals (ATNM) stake by 55% in Q2 2026, selling an estimated $19K and leaving 13,731 shares worth $13.5K. The position accounts for ﹤0.01% of the portfolio, ranked #3984.

XTX Topco first reported a position in ATNM in Q3 2024 and has held it in 7 quarters since. The position peaked at $268K in Q3 2024. 47 funds tracked by Wall St. Rank hold ATNM as of Q2 2026.

  • XTX Topco held 13,731 shares of Actinium Pharmaceuticals worth $13.5K as of Q2 2026.
  • XTX Topco sold 16,479 Actinium Pharmaceuticals shares in Q2 2026, an estimated $19K.
  • Actinium Pharmaceuticals made up ﹤0.01% of XTX Topco's portfolio in Q2 2026, its #3984 holding.
  • XTX Topco first reported a position in Actinium Pharmaceuticals in Q3 2024 and has held it in 7 quarters since.
  • XTX Topco's Actinium Pharmaceuticals position peaked at $268K in Q3 2024.
  • 47 funds tracked by Wall St. Rank held Actinium Pharmaceuticals as of Q2 2026.

Based on XTX Topco's 13F filing for Q2 2026, filed 14 Aug 2026.