XT
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XTX Topco’s Atomera ATOM Stock Holding History

XTX Topco’s Portfolio ATOM Stock Details ATOM Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$309K Buy
+35,422
New +$278K ﹤0.01% 2897
2026
Q1 		– Sell
-96,270
Closed -$213K – 3827
2025
Q4 		$213K Buy
+96,270
New +$291K 0.01% 2357
2025
Q3 		– Sell
-25,473
Closed -$128K – 2545
2025
Q2 		$128K Buy
25,473
+15,188
+148% +$81K 0.01% 1825
2025
Q1 		$41.1K Sell
10,285
-26,611
-72% -$207K ﹤0.01% 2024
2024
Q4 		$428K Buy
36,896
+8,118
+28% +$46.8K 0.04% 904
2024
Q3 		$75.7K Buy
+28,778
New +$89.7K 0.01% 1644
2023
Q3 		– Sell
-42,367
Closed -$372K – 1553
2023
Q2 		$372K Buy
+42,367
New +$334K 0.07% 562

Other funds holding ATOM

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
D.E. Shaw & Co
D.E. Shaw & Co New York $210B AUM 57.28% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
AC
Avenir Corporation Alexandria, Virginia $821M AUM 4.23% 1-Year Est. Return
Baird Financial Group
Baird Financial Group Milwaukee, Wisconsin $72.7B AUM 26.4% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Jane Street
Jane Street New York $1.21T AUM 78.12% 1-Year Est. Return
QPW
Quantum Private Wealth Tampa, Florida $390M AUM 58.18% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

XTX Topco's ATOM Position: Q2 2026 in Review

XTX Topco opened a new position in Atomera (ATOM) in Q2 2026: 35,422 shares worth $309K. The stake represents ﹤0.01% of the portfolio and ranks #2897 among its holdings. This is a return to the name: XTX Topco previously reported a position in ATOM as recently as Q4 2025.

XTX Topco first reported a position in ATOM in Q2 2023 and has held it in 7 quarters since. The position peaked at $428K in Q4 2024. 122 funds tracked by Wall St. Rank hold ATOM as of Q2 2026.

  • XTX Topco held 35,422 shares of Atomera worth $309K as of Q2 2026.
  • Atomera was a new XTX Topco position in Q2 2026.
  • Atomera made up ﹤0.01% of XTX Topco's portfolio in Q2 2026, its #2897 holding.
  • XTX Topco first reported a position in Atomera in Q2 2023 and has held it in 7 quarters since.
  • XTX Topco's Atomera position peaked at $428K in Q4 2024.
  • 122 funds tracked by Wall St. Rank held Atomera as of Q2 2026.

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