SEI Investments’s Kosmos Energy KOS Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q1
$4.21M Buy
1,515,992
+658,414
+77% +$1.24M ﹤0.01% 1635
2025
Q4
$778K Buy
857,578
+575,618
+204% +$759K ﹤0.01% 2297
2025
Q3
$468K Buy
281,960
+74,666
+36% +$140K ﹤0.01% 2260
2025
Q2
$357K Sell
207,294
-30,812
-13% -$55.8K ﹤0.01% 2331
2025
Q1
$543K Buy
238,106
+92,948
+64% +$274K ﹤0.01% 2118
2024
Q4
$496K Buy
145,158
+17,808
+14% +$67.8K ﹤0.01% 2189
2024
Q3
$513K Buy
127,350
+29,912
+31% +$146K ﹤0.01% 2170
2024
Q2
$540K Hold
97,438
﹤0.01% 2127
2024
Q1
$581K Sell
97,438
-40,198
-29% -$242K ﹤0.01% 2063
2023
Q4
$924K Sell
137,636
-4,627
-3% -$32.4K ﹤0.01% 1899
2023
Q3
$1.16M Buy
142,263
+20,810
+17% +$147K ﹤0.01% 1838
2023
Q2
$728K Sell
121,453
-3,635
-3% -$23.7K ﹤0.01% 1995
2023
Q1
$931K Buy
125,088
+18,266
+17% +$134K ﹤0.01% 1898
2022
Q4
$680K Buy
106,822
+18,049
+20% +$113K ﹤0.01% 1901
2022
Q3
$459K Buy
88,773
+23,262
+36% +$141K ﹤0.01% 2128
2022
Q2
$406K Hold
65,511
﹤0.01% 2187
2022
Q1
$471K Sell
65,511
-93,149
-59% -$475K ﹤0.01% 2116
2021
Q4
$549K Sell
158,660
-75,200
-32% -$270K ﹤0.01% 2057
2021
Q3
$692K Buy
233,860
+96,949
+71% +$236K ﹤0.01% 1928
2021
Q2
$474K Hold
136,911
﹤0.01% 2119
2021
Q1
$420K Hold
136,911
﹤0.01% 2105
2020
Q4
$322K Sell
136,911
-110,935
-45% -$176K ﹤0.01% 2179
2020
Q3
$242K Sell
247,846
-264,515
-52% -$388K ﹤0.01% 2170
2020
Q2
$850K Buy
512,361
+411,050
+406% +$660K ﹤0.01% 1621
2020
Q1
$91K Buy
101,311
+12,359
+14% +$49.1K ﹤0.01% 2268
2019
Q4
$507K Buy
88,952
+5,555
+7% +$33.5K ﹤0.01% 1917
2019
Q3
$520K Buy
83,397
+14,935
+22% +$91.7K ﹤0.01% 1871
2019
Q2
$429K Sell
68,462
-21,885
-24% -$140K ﹤0.01% 1968
2019
Q1
$563K Buy
90,347
+85,117
+1,627% +$472K ﹤0.01% 1830
2018
Q4
$49K Hold
5,230
﹤0.01% 2349
2018
Q3
$49K Sell
5,230
-1,613
-24% -$13.6K ﹤0.01% 2237
2018
Q2
$56K Sell
6,843
-2
-0% -$15 ﹤0.01% 2475
2018
Q1
$44K Buy
6,845
+76
+1% +$476 ﹤0.01% 2400
2017
Q4
$47K Buy
6,769
+710
+12% +$5.41K ﹤0.01% 2380
2017
Q3
$48K Sell
6,059
-146
-2% -$1.01K ﹤0.01% 2286
2017
Q2
$40K Sell
6,205
-102
-2% -$647 ﹤0.01% 2297
2017
Q1
$42K Sell
6,307
-3,315
-34% -$20.9K ﹤0.01% 2172
2016
Q4
$67K Sell
9,622
-568
-6% -$3.23K ﹤0.01% 2065
2016
Q3
$65K Sell
10,190
-783
-7% -$4.57K ﹤0.01% 1993
2016
Q2
$59K Buy
10,973
+420
+4% +$2.37K ﹤0.01% 1898
2016
Q1
$62K Buy
10,553
+365
+4% +$1.73K ﹤0.01% 1791
2015
Q4
$53K Buy
10,188
+9,874
+3,145% +$65.5K ﹤0.01% 1876
2015
Q3
$2K Buy
314
+293
+1,395% +$2.03K ﹤0.01% 2365
2015
Q2
$0 Hold
21
﹤0.01% 2318
2015
Q1
$0 Sell
21
-163
-89% -$1.37K ﹤0.01% 2308
2014
Q4
$2K Buy
+184
New +$1.64K ﹤0.01% 2061

Other funds holding KOS

SEI Investments's KOS Position: Q1 2026 in Review

SEI Investments increased its Kosmos Energy (KOS) stake by 77% in Q1 2026, buying an estimated $1.24M and bringing the position to 1,515,992 shares worth $4.21M. The position accounts for ﹤0.01% of the portfolio, ranked #1635.

SEI Investments first reported a position in KOS in Q4 2014 and has held it in 46 quarters since. 262 funds tracked by Wall St. Rank hold KOS as of Q1 2026.

  • SEI Investments held 1,515,992 shares of Kosmos Energy worth $4.21M as of Q1 2026.
  • SEI Investments bought 658,414 Kosmos Energy shares in Q1 2026, an estimated $1.24M.
  • Kosmos Energy made up ﹤0.01% of SEI Investments's portfolio in Q1 2026, its #1635 holding.
  • SEI Investments first reported a position in Kosmos Energy in Q4 2014 and has held it in 46 quarters since.
  • 262 funds tracked by Wall St. Rank held Kosmos Energy as of Q1 2026.

Based on SEI Investments's 13F filing for Q1 2026, filed 13 May 2026.