Jane Street’s System1 SST Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2024
Q1
Sell
-21,250
Closed -$472K 10040
2023
Q4
$472K Hold
21,250
﹤0.01% 6865
2023
Q3
$257K Hold
21,250
﹤0.01% 7293
2023
Q2
$956K Hold
21,250
﹤0.01% 5251
2023
Q1
$914K Sell
21,250
-12,780
-38% -$567K ﹤0.01% 5171
2022
Q4
$1.6M Sell
34,030
-24,560
-42% -$1.26M ﹤0.01% 4215
2022
Q3
$3.69M Buy
58,590
+3,920
+7% +$342K ﹤0.01% 3120
2022
Q2
$3.81M Buy
54,670
+14,150
+35% +$1.78M ﹤0.01% 3073
2022
Q1
$5.88M Buy
+40,520
New +$4.97M ﹤0.01% 2765

Other funds holding SST

Jane Street's SST Position: Q3 2025 in Review

Jane Street sold out of System1 (SST) in Q3 2025, closing a stake of 31,681 shares — an estimated $175K sold.

Jane Street first reported a position in SST in Q4 2021 and held it in 15 quarters. The position peaked at $4.18M in Q4 2021. 30 funds tracked by Wall St. Rank hold SST as of Q3 2025.

  • Jane Street reported no remaining System1 position as of Q3 2025 after selling out during the quarter.
  • Jane Street sold 31,681 System1 shares in Q3 2025, an estimated $175K.
  • Jane Street first reported a position in System1 in Q4 2021 and held it in 15 quarters.
  • Jane Street's System1 position peaked at $4.18M in Q4 2021.
  • 30 funds tracked by Wall St. Rank held System1 as of Q3 2025.

Based on Jane Street's 13F filing for Q3 2025, filed 14 Nov 2025.