JO
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John Overdeck’s Stem STEM Stock Holding History

John Overdeck’s Portfolio STEM Stock Details STEM Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$806K Sell
103,234
-72,155
-41% -$669K ﹤0.01% 3778
2026
Q1 		$1.55M Buy
175,389
+90,290
+106% +$1.21M ﹤0.01% 2953
2025
Q4 		$1.28M Sell
85,099
-8,946
-10% -$171K ﹤0.01% 2755
2025
Q3 		$1.65M Buy
94,045
+77,307
+462% +$1.09M ﹤0.01% 2258
2025
Q2 		$104K Buy
16,738
+6,332
+61% +$56.8K ﹤0.01% 2992
2025
Q1 		$72.9K Buy
10,406
+70
+0.7% +$811 ﹤0.01% 2999
2024
Q4 		$125K Sell
10,336
-22,817
-69% -$196K ﹤0.01% 2943
2024
Q3 		$231K Buy
33,153
+1,232
+4% +$19.4K ﹤0.01% 2764
2024
Q2 		$709K Buy
31,921
+14,236
+80% +$417K ﹤0.01% 2185
2024
Q1 		$775K Buy
17,685
+15,517
+716% +$863K ﹤0.01% 2111
2023
Q4 		$168K Sell
2,168
-11,008
-84% -$759K ﹤0.01% 2873
2023
Q3 		$1.12M Sell
13,176
-35,705
-73% -$4.08M ﹤0.01% 1868
2023
Q2 		$5.59M Sell
48,881
-21,845
-31% -$2.17M 0.01% 875
2023
Q1 		$8.02M Buy
70,726
+34,575
+96% +$5.86M 0.02% 679
2022
Q4 		$6.46M Buy
36,151
+7,614
+27% +$1.83M 0.02% 732
2022
Q3 		$7.61M Buy
28,537
+25,886
+976% +$6.62M 0.03% 596
2022
Q2 		$380K Sell
2,651
-38,815
-94% -$6.45M ﹤0.01% 1925
2022
Q1 		$9.13M Buy
+41,466
New +$9.65M 0.03% 643

Other funds holding STEM

Marshall Wace
Marshall Wace London, United Kingdom $127B AUM 46.06% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
TI
Trexquant Investment Stamford, Connecticut $17B AUM 39.66% 1-Year Est. Return
GCP
GSA Capital Partners London, United Kingdom $1.59B AUM 39.81% 1-Year Est. Return
BNP Paribas Financial Markets
BNP Paribas Financial Markets Paris, France $289B AUM 60.46% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Acadian Asset Management
Acadian Asset Management Boston, Massachusetts $84.2B AUM 55.88% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $72.6B AUM 54.88% 1-Year Est. Return
BCM
Bridgeway Capital Management Houston, Texas $5.69B AUM 60.64% 1-Year Est. Return

John Overdeck's STEM Position: Q2 2026 in Review

John Overdeck reduced its Stem (STEM) stake by 41% in Q2 2026, selling an estimated $669K and leaving 103,234 shares worth $806K. The position accounts for ﹤0.01% of the portfolio, ranked #3778.

John Overdeck first reported a position in STEM in Q1 2022 and has held it in 18 quarters since. The position peaked at $9.13M in Q1 2022. 73 funds tracked by Wall St. Rank hold STEM as of Q2 2026.

  • John Overdeck held 103,234 shares of Stem worth $806K as of Q2 2026.
  • John Overdeck sold 72,155 Stem shares in Q2 2026, an estimated $669K.
  • Stem made up ﹤0.01% of John Overdeck's portfolio in Q2 2026, its #3778 holding.
  • John Overdeck first reported a position in Stem in Q1 2022 and has held it in 18 quarters since.
  • John Overdeck's Stem position peaked at $9.13M in Q1 2022.
  • 73 funds tracked by Wall St. Rank held Stem as of Q2 2026.

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