Ken Griffin’s CSG Systems International CSGS Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q1
$377K Sell
4,722
-47,366
-91% -$3.77M ﹤0.01% 9938
2025
Q4
$3.99M Sell
52,088
-762,703
-94% -$56.3M ﹤0.01% 4659
2025
Q3
$52.5M Buy
814,791
+362,910
+80% +$23.1M 0.01% 1333
2025
Q2
$29.5M Buy
451,881
+361,369
+399% +$22.5M 0.01% 1696
2025
Q1
$5.47M Sell
90,512
-29,173
-24% -$1.73M ﹤0.01% 3725
2024
Q4
$6.12M Buy
119,685
+1,270
+1% +$65.4K ﹤0.01% 3646
2024
Q3
$5.76M Sell
118,415
-96,010
-45% -$4.38M ﹤0.01% 3727
2024
Q2
$8.83M Sell
214,425
-207
-0.1% -$9.17K ﹤0.01% 2938
2024
Q1
$11.1M Buy
214,632
+97,884
+84% +$5.09M ﹤0.01% 2816
2023
Q4
$6.21M Buy
116,748
+65,678
+129% +$3.36M ﹤0.01% 3504
2023
Q3
$2.61M Sell
51,070
-79,137
-61% -$4.21M ﹤0.01% 4740
2023
Q2
$6.87M Buy
130,207
+87,846
+207% +$4.49M ﹤0.01% 3181
2023
Q1
$2.27M Sell
42,361
-1,340
-3% -$76.2K ﹤0.01% 5119
2022
Q4
$2.5M Buy
+43,701
New +$2.57M ﹤0.01% 5071
2022
Q3
Sell
-8,583
Closed -$512K 12751
2022
Q2
$512K Sell
8,583
-58,477
-87% -$3.54M ﹤0.01% 8585
2022
Q1
$4.26M Sell
67,060
-12,450
-16% -$749K ﹤0.01% 4497
2021
Q4
$4.58M Buy
79,510
+38,026
+92% +$2.02M ﹤0.01% 4472
2021
Q3
$2M Sell
41,484
-111,166
-73% -$5.2M ﹤0.01% 6337
2021
Q2
$7.2M Sell
152,650
-15,657
-9% -$713K ﹤0.01% 3690
2021
Q1
$7.56M Buy
168,307
+81,967
+95% +$3.78M ﹤0.01% 3440
2020
Q4
$3.89M Buy
86,340
+9,035
+12% +$385K ﹤0.01% 4117
2020
Q3
$3.17M Buy
77,305
+10,849
+16% +$452K ﹤0.01% 3891
2020
Q2
$2.75M Sell
66,456
-8,902
-12% -$408K ﹤0.01% 4009
2020
Q1
$3.15M Sell
75,358
-148,595
-66% -$7.07M ﹤0.01% 3379
2019
Q4
$11.6M Sell
223,953
-4,108
-2% -$222K 0.01% 2049
2019
Q3
$11.8M Sell
228,061
-35,431
-13% -$1.81M 0.01% 2029
2019
Q2
$12.9M Sell
263,492
-20,683
-7% -$946K 0.01% 1879
2019
Q1
$12M Buy
284,175
+6,394
+2% +$247K 0.01% 1851
2018
Q4
$8.82M Buy
277,781
+15,660
+6% +$550K ﹤0.01% 2047
2018
Q3
$10.5M Buy
262,121
+65,029
+33% +$2.57M ﹤0.01% 2039
2018
Q2
$8.06M Buy
197,092
+75,170
+62% +$3.19M ﹤0.01% 2170
2018
Q1
$5.52M Sell
121,922
-42,225
-26% -$1.94M ﹤0.01% 2364
2017
Q4
$7.19M Sell
164,147
-65,827
-29% -$2.84M ﹤0.01% 2059
2017
Q3
$9.22M Buy
229,974
+87,222
+61% +$3.44M 0.01% 1674
2017
Q2
$5.79M Buy
142,752
+110,659
+345% +$4.34M ﹤0.01% 1968
2017
Q1
$1.21M Buy
32,093
+8,824
+38% +$374K ﹤0.01% 3738
2016
Q4
$1.13M Buy
+23,269
New +$1M ﹤0.01% 3701
2016
Q3
Sell
-24,335
Closed -$981K 7291
2016
Q2
$981K Buy
24,335
+13,416
+123% +$576K ﹤0.01% 3571
2016
Q1
$493K Buy
10,919
+6,227
+133% +$235K ﹤0.01% 4421
2015
Q4
$169K Sell
4,692
-13,208
-74% -$454K ﹤0.01% 6017
2015
Q3
$551K Sell
17,900
-1,474
-8% -$45.7K ﹤0.01% 4671
2015
Q2
$613K Buy
+19,374
New +$597K ﹤0.01% 4663
2015
Q1
Sell
-1,551
Closed -$39K 8555
2014
Q4
$39K Buy
1,551
+1,014
+189% +$25.9K ﹤0.01% 7380
2014
Q3
$14K Buy
+537
New +$14.5K ﹤0.01% 7642
2014
Q2
Sell
-5,381
Closed -$140K 7995
2014
Q1
$140K Buy
5,381
+4,100
+320% +$116K ﹤0.01% 5867
2013
Q4
$38K Sell
1,281
-12,662
-91% -$350K ﹤0.01% 6180
2013
Q3
$349K Sell
13,943
-1,839
-12% -$44.3K ﹤0.01% 4199
2013
Q2
$342K Buy
+15,782
New +$334K ﹤0.01% 4181

Other funds holding CSGS

Ken Griffin's CSGS Position: Q1 2026 in Review

Ken Griffin reduced its CSG Systems International (CSGS) stake by 91% in Q1 2026, selling an estimated $3.77M and leaving 4,722 shares worth $377K. The position accounts for ﹤0.01% of the portfolio, ranked #9938.

Ken Griffin first reported a position in CSGS in Q2 2013 and has held it in 48 quarters since. The position peaked at $52.5M in Q3 2025. 291 funds tracked by Wall St. Rank hold CSGS as of Q1 2026.

  • Ken Griffin held 4,722 shares of CSG Systems International worth $377K as of Q1 2026.
  • Ken Griffin sold 47,366 CSG Systems International shares in Q1 2026, an estimated $3.77M.
  • CSG Systems International made up ﹤0.01% of Ken Griffin's portfolio in Q1 2026, its #9938 holding.
  • Ken Griffin first reported a position in CSG Systems International in Q2 2013 and has held it in 48 quarters since.
  • Ken Griffin's CSG Systems International position peaked at $52.5M in Q3 2025.
  • 291 funds tracked by Wall St. Rank held CSG Systems International as of Q1 2026.

Based on Citadel Advisors's 13F filing for Q1 2026, filed 15 May 2026.