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Harbor Capital Advisors’s Kosmos Energy KOS Stock Holding History

Harbor Capital Advisors’s Portfolio KOS Stock Details KOS Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$1.82M Buy
653,420
+408,386
+167% +$768K 0.15% 209
2025
Q4 		$222K Buy
245,034
+21,895
+10% +$28.9K 0.02% 603
2025
Q3 		$370K Sell
223,139
-709,188
-76% -$1.33M 0.03% 544
2025
Q2 		$1.6M Sell
932,327
-387,176
-29% -$701K 0.07% 357
2025
Q1 		$3.01M Sell
1,319,503
-23,660
-2% -$69.8K 0.14% 219
2024
Q4 		$4.59M Buy
1,343,163
+51,699
+4% +$197K 0.2% 152
2024
Q3 		$5.21M Buy
1,291,464
+579,859
+81% +$2.82M 0.23% 136
2024
Q2 		$3.94M Buy
711,605
+302,820
+74% +$1.77M 0.3% 80
2024
Q1 		$2.44M Buy
408,785
+214,046
+110% +$1.29M 0.32% 57
2023
Q4 		$1.31M Buy
194,739
+24,108
+14% +$169K 0.25% 100
2023
Q3 		$1.4M Sell
170,631
-40,777
-19% -$289K 0.3% 84
2023
Q2 		$1.27M Buy
+211,408
New +$1.38M 0.25% 97

Other funds holding KOS

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
EPIM
Equinox Partners Investment Management Stamford, Connecticut $245M AUM 225.58% 1-Year Est. Return
D.E. Shaw & Co
D.E. Shaw & Co New York $166B AUM 43.98% 1-Year Est. Return
Hotchkis & Wiley Capital Management
Hotchkis & Wiley Capital Management Los Angeles, California $32.4B AUM 17.21% 1-Year Est. Return
Two Sigma Investments
Two Sigma Investments New York $124B AUM 33.93% 1-Year Est. Return
Grantham, Mayo, Van Otterloo & Co (GMO)
Grantham, Mayo, Van Otterloo & Co (GMO) Boston, Massachusetts $39.1B AUM 28.69% 1-Year Est. Return
Charles Schwab
Charles Schwab San Francisco, California $654B AUM 26.35% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Millennium Management
Millennium Management New York $240B AUM 35.51% 1-Year Est. Return

Harbor Capital Advisors's KOS Position: Q1 2026 in Review

Harbor Capital Advisors increased its Kosmos Energy (KOS) stake by 167% in Q1 2026, buying an estimated $768K and bringing the position to 653,420 shares worth $1.82M. The position accounts for 0.15% of the portfolio, ranked #209.

Harbor Capital Advisors first reported a position in KOS in Q2 2023 and has held it in 12 quarters since. The position peaked at $5.21M in Q3 2024. 262 funds tracked by Wall St. Rank hold KOS as of Q1 2026.

  • Harbor Capital Advisors held 653,420 shares of Kosmos Energy worth $1.82M as of Q1 2026.
  • Harbor Capital Advisors bought 408,386 Kosmos Energy shares in Q1 2026, an estimated $768K.
  • Kosmos Energy made up 0.15% of Harbor Capital Advisors's portfolio in Q1 2026, its #209 holding.
  • Harbor Capital Advisors first reported a position in Kosmos Energy in Q2 2023 and has held it in 12 quarters since.
  • Harbor Capital Advisors's Kosmos Energy position peaked at $5.21M in Q3 2024.
  • 262 funds tracked by Wall St. Rank held Kosmos Energy as of Q1 2026.

Based on Harbor Capital Advisors's 13F filing for Q1 2026, filed 28 Apr 2026.