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 $14.3B AUM 23.11% 1-Year Est. Return
GI
GAMCO Investors Greenwich, Connecticut $11.1B AUM 41.79% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Renaissance Technologies
Renaissance Technologies New York $72.6B AUM 54.88% 1-Year Est. Return
Acadian Asset Management
Acadian Asset Management Boston, Massachusetts $84.2B AUM 55.88% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
HIM
Hillsdale Investment Management Toronto, Ontario, Canada $4.39B AUM 72.96% 1-Year Est. Return
American Century Companies
American Century Companies Kansas City, Missouri $226B AUM 44.75% 1-Year Est. Return

Citadel Advisors's FSTR Position: Q2 2026 in Review

Citadel Advisors opened a new position in Foster (FSTR) in Q2 2026: 31,932 shares worth $1.44M. The stake represents ﹤0.01% of the portfolio and ranks #7309 among its holdings. This is a return to the name: Citadel Advisors previously reported a position in FSTR as recently as Q3 2025.

Citadel Advisors first reported a position in FSTR in Q3 2013 and has held it in 19 quarters since. 134 funds tracked by Wall St. Rank hold FSTR as of Q2 2026.

  • Citadel Advisors held 31,932 shares of Foster worth $1.44M as of Q2 2026.
  • Foster was a new Citadel Advisors position in Q2 2026.
  • Foster made up ﹤0.01% of Citadel Advisors's portfolio in Q2 2026, its #7309 holding.
  • Citadel Advisors first reported a position in Foster in Q3 2013 and has held it in 19 quarters since.
  • 134 funds tracked by Wall St. Rank held Foster as of Q2 2026.

Based on Citadel Advisors's 13F filing for Q2 2026, filed 14 Aug 2026.