Banco Santander’s Kosmos Energy KOS Stock Holding History

Banco Santander’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 Q2	$1.11M	Buy	525,378 +400,842	+322%	+$1.12M	0.01%	341
2026 Q1	$346K	Sell	124,536 -29,988	-19%	-$56.4K	﹤0.01%	398
2025 Q4	$140K	Sell	154,524 -7,396	-5%	-$9.75K	﹤0.01%	449
2025 Q3	$269K	Buy	161,920 +113,812	+237%	+$213K	﹤0.01%	425
2025 Q2	$82.7K	Buy	48,108 +22,588	+89%	+$40.9K	﹤0.01%	474
2025 Q1	$58.2K	Buy	25,520 +4,340	+20%	+$12.8K	﹤0.01%	469
2024 Q4	$72.4K	Buy	+21,180	New	+$80.6K	﹤0.01%	441
2021 Q4	–	Sell	-440,503	Closed	-$1.3M	–	441
2021 Q3	$1.3M	Hold	440,503	–	–	0.01%	265
2021 Q2	$1.52M	Hold	440,503	–	–	0.01%	244
2021 Q1	$1.35M	Sell	440,503 -120,600	-21%	-$352K	0.01%	241
2020 Q4	$1.32M	Sell	561,103 -2,133,109	-79%	-$3.38M	0.01%	233
2020 Q3	$2.63M	Hold	2,694,212	–	–	0.03%	162
2020 Q2	$4.47M	Hold	2,694,212	–	–	0.06%	107
2020 Q1	$2.41M	Hold	2,694,212	–	–	0.03%	191
2019 Q4	$15.4M	Buy	2,694,212 +31,147	+1%	+$188K	0.14%	71
2019 Q3	$16.6M	Buy	2,663,065 +778,208	+41%	+$4.78M	0.16%	64
2019 Q2	$11.8M	Buy	1,884,857 +633,916	+51%	+$4.04M	0.12%	75
2019 Q1	$7.81M	Buy	+1,250,941	New	+$6.94M	0.09%	108

Other funds holding KOS

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Two Sigma Investments New York $138B AUM 41.87% 1-Year Est. Return

D.E. Shaw & Co New York $210B AUM 57.28% 1-Year Est. Return

EPIM

Equinox Partners Investment Management Stamford, Connecticut $212M AUM 153.42% 1-Year Est. Return

Hotchkis & Wiley Capital Management Los Angeles, California $34.3B AUM 22.63% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Charles Schwab San Francisco, California $751B AUM 38.74% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Grantham, Mayo, Van Otterloo & Co (GMO) Boston, Massachusetts $44.4B AUM 36.05% 1-Year Est. Return

Banco Santander's KOS Position: Q2 2026 in Review

Banco Santander increased its Kosmos Energy (KOS) stake by 322% in Q2 2026, buying an estimated $1.12M and bringing the position to 525,378 shares worth $1.11M. The position accounts for 0.01% of the portfolio, ranked #341.

Banco Santander first reported a position in KOS in Q1 2019 and has held it in 18 quarters since. The position peaked at $16.6M in Q3 2019. 267 funds tracked by Wall St. Rank hold KOS as of Q2 2026.

Banco Santander held 525,378 shares of Kosmos Energy worth $1.11M as of Q2 2026.
Banco Santander bought 400,842 Kosmos Energy shares in Q2 2026, an estimated $1.12M.
Kosmos Energy made up 0.01% of Banco Santander's portfolio in Q2 2026, its #341 holding.
Banco Santander first reported a position in Kosmos Energy in Q1 2019 and has held it in 18 quarters since.
Banco Santander's Kosmos Energy position peaked at $16.6M in Q3 2019.
267 funds tracked by Wall St. Rank held Kosmos Energy as of Q2 2026.

Based on Banco Santander's 13F filing for Q2 2026, filed 29 Jul 2026.