JO
STEM icon

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
2023
Q1 		– Sell
-3,750
Closed -$671K – 3196
2022
Q4 		$671K Hold
3,750
– – ﹤0.01% 1894
2022
Q3 		$1M Hold
3,750
– – ﹤0.01% 1472
2022
Q2 		$537K Hold
3,750
– – ﹤0.01% 1797
2022
Q1 		$826K Hold
3,750
– – ﹤0.01% 1798
2021
Q4 		$1.42M Buy
+3,750
New +$1.63M ﹤0.01% 2241

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.