Citadel Advisors
FSTR icon

Citadel Advisors’s Foster FSTR Stock Holding History

Citadel Advisors’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
2025
Q2 		– Sell
-3,100
Closed -$61K – 13367
2025
Q1 		$61K Sell
3,100
-2,800
-47% -$70.3K ﹤0.01% 12097
2024
Q4 		$159K Buy
5,900
+2,100
+55% +$50.2K ﹤0.01% 10802
2024
Q3 		$77.6K Buy
3,800
+3,400
+850% +$69.2K ﹤0.01% 11449
2024
Q2 		$8.61K Buy
+400
New +$10.3K ﹤0.01% 13176
2023
Q4 		– Sell
-2,000
Closed -$37.8K – 14615
2023
Q3 		$37.8K Sell
2,000
-500
-20% -$8.27K ﹤0.01% 12060
2023
Q2 		$35.7K Sell
2,500
-200
-7% -$2.46K ﹤0.01% 12167
2023
Q1 		$31K Buy
2,700
+1,100
+69% +$13K ﹤0.01% 12710
2022
Q4 		$15.5K Buy
+1,600
New +$16.2K ﹤0.01% 13324
2021
Q3 		– Sell
-14,900
Closed -$278K – 14065
2021
Q2 		$278K Buy
+14,900
New +$262K ﹤0.01% 11449
2016
Q3 		– Sell
-13,000
Closed -$142K – 7381
2016
Q2 		$142K Buy
+13,000
New +$184K ﹤0.01% 6042
2016
Q1 		– Sell
-4,200
Closed -$57K – 7161
2015
Q4 		$57K Buy
4,200
+1,300
+45% +$17.7K ﹤0.01% 7198
2015
Q3 		$36K Sell
2,900
-1,300
-31% -$29K ﹤0.01% 7795
2015
Q2 		$145K Sell
4,200
-200
-5% -$8.17K ﹤0.01% 6692
2015
Q1 		$209K Sell
4,400
-600
-12% -$28.5K ﹤0.01% 6126
2014
Q4 		$243K Buy
+5,000
New +$244K ﹤0.01% 5733
2013
Q4 		– Sell
-5,000
Closed -$229K – 7053
2013
Q3 		$229K Buy
+5,000
New +$223K ﹤0.01% 4635

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
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
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

Citadel Advisors's FSTR Position: Q4 2025 in Review

Citadel Advisors sold out of Foster (FSTR) in Q4 2025, closing a stake of 20,398 shares — an estimated $550K sold.

Citadel Advisors first reported a position in FSTR in Q3 2013 and held it in 18 quarters. The position peaked at $1.38M in Q3 2015. 95 funds tracked by Wall St. Rank hold FSTR as of Q4 2025.

  • Citadel Advisors reported no remaining Foster position as of Q4 2025 after selling out during the quarter.
  • Citadel Advisors sold 20,398 Foster shares in Q4 2025, an estimated $550K.
  • Citadel Advisors first reported a position in Foster in Q3 2013 and held it in 18 quarters.
  • Citadel Advisors's Foster position peaked at $1.38M in Q3 2015.
  • 95 funds tracked by Wall St. Rank held Foster as of Q4 2025.

Based on Citadel Advisors's 13F filing for Q4 2025, filed 17 Feb 2026.