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John Overdeck’s Atomera ATOM Stock Holding History

John Overdeck’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 		$5.82M Buy
667,667
+137,667
+26% +$1.08M ﹤0.01% 1996
2026
Q1 		$2.02M Buy
530,000
+348,672
+192% +$1.31M ﹤0.01% 2751
2025
Q4 		$401K Buy
181,328
+90,386
+99% +$273K ﹤0.01% 3437
2025
Q3 		$402K Sell
90,942
-8,357
-8% -$34.3K ﹤0.01% 3088
2025
Q2 		$500K Buy
99,299
+63,414
+177% +$338K ﹤0.01% 2585
2025
Q1 		$144K Buy
35,885
+19,803
+123% +$154K ﹤0.01% 2908
2024
Q4 		$187K Sell
16,082
-40,768
-72% -$235K ﹤0.01% 2885
2024
Q3 		$150K Buy
56,850
+21,867
+63% +$68.2K ﹤0.01% 2845
2024
Q2 		$133K Buy
+34,983
New +$165K ﹤0.01% 2792
2023
Q4 		– Sell
-49,551
Closed -$310K – 3143
2023
Q3 		$310K Sell
49,551
-58,985
-54% -$421K ﹤0.01% 2479
2023
Q2 		$952K Buy
108,536
+95,695
+745% +$755K ﹤0.01% 1969
2023
Q1 		$81.8K Sell
12,841
-18,019
-58% -$122K ﹤0.01% 2699
2022
Q4 		$192K Buy
+30,860
New +$253K ﹤0.01% 2406
2022
Q2 		– Sell
-31,439
Closed -$411K – 2498
2022
Q1 		$411K Buy
+31,439
New +$471K ﹤0.01% 2105
2021
Q4 		– Sell
-72,395
Closed -$1.7M – 4258
2021
Q3 		$1.67M Buy
+72,395
New +$1.57M ﹤0.01% 2152

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

John Overdeck's ATOM Position: Q2 2026 in Review

John Overdeck increased its Atomera (ATOM) stake by 26% in Q2 2026, buying an estimated $1.08M and bringing the position to 667,667 shares worth $5.82M. The position accounts for ﹤0.01% of the portfolio, ranked #1996.

John Overdeck first reported a position in ATOM in Q3 2021 and has held it in 15 quarters since. 121 funds tracked by Wall St. Rank hold ATOM as of Q2 2026.

  • John Overdeck held 667,667 shares of Atomera worth $5.82M as of Q2 2026.
  • John Overdeck bought 137,667 Atomera shares in Q2 2026, an estimated $1.08M.
  • Atomera made up ﹤0.01% of John Overdeck's portfolio in Q2 2026, its #1996 holding.
  • John Overdeck first reported a position in Atomera in Q3 2021 and has held it in 15 quarters since.
  • 121 funds tracked by Wall St. Rank held Atomera as of Q2 2026.

Based on Two Sigma Investments's 13F filing for Q2 2026, filed 14 Aug 2026.