Jane Street
FSTR icon

Jane Street’s Foster FSTR Stock Holding History

Jane Street’s Portfolio FSTR Stock Details FSTR Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$351K Sell
12,571
-5,002
-28% -$148K ﹤0.01% 8874
2025
Q4 		$474K Sell
17,573
-325
-2% -$8.77K ﹤0.01% 7817
2025
Q3 		$482K Buy
+17,898
New +$443K ﹤0.01% 7954
2024
Q4 		– Sell
-14,907
Closed -$305K – 9806
2024
Q3 		$305K Buy
+14,907
New +$303K ﹤0.01% 8015
2024
Q2 		– Sell
-121,803
Closed -$3.33M – 9640
2024
Q1 		$3.33M Buy
121,803
+77,155
+173% +$1.82M ﹤0.01% 3234
2023
Q4 		$982K Buy
+44,648
New +$880K ﹤0.01% 5598

Other funds holding FSTR

BIP
Brandes Investment Partners La Jolla, California $14.1B AUM 25.52% 1-Year Est. Return
2L
22NW LP Seattle, Washington $146M AUM 29.83% 1-Year Est. Return
GI
GAMCO Investors Greenwich, Connecticut $10.2B AUM 30.27% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Renaissance Technologies
Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Hotchkis & Wiley Capital Management
Hotchkis & Wiley Capital Management Los Angeles, California $32.4B AUM 17.21% 1-Year Est. Return

Jane Street's FSTR Position: Q1 2026 in Review

Jane Street reduced its Foster (FSTR) stake by 28% in Q1 2026, selling an estimated $148K and leaving 12,571 shares worth $351K. The position accounts for ﹤0.01% of the portfolio, ranked #8874.

Jane Street first reported a position in FSTR in Q4 2023 and has held it in 6 quarters since. The position peaked at $3.33M in Q1 2024. 109 funds tracked by Wall St. Rank hold FSTR as of Q1 2026.

  • Jane Street held 12,571 shares of Foster worth $351K as of Q1 2026.
  • Jane Street sold 5,002 Foster shares in Q1 2026, an estimated $148K.
  • Foster made up ﹤0.01% of Jane Street's portfolio in Q1 2026, its #8874 holding.
  • Jane Street first reported a position in Foster in Q4 2023 and has held it in 6 quarters since.
  • Jane Street's Foster position peaked at $3.33M in Q1 2024.
  • 109 funds tracked by Wall St. Rank held Foster as of Q1 2026.

Based on Jane Street's 13F filing for Q1 2026, filed 12 May 2026.