Boston Partners

CIK
1386060
City
BOSTON
State / Country
MA

Top Portfolio Positions

735 positions · $95,326,522,277 total · as of Mar 31, 2026
Ticker Company Shares Value (USD) % of Portfolio
JPM
Jpmorgan Chase & Co
Financial Services
7,053,020 $2,074,716,360 2.18%
USFD
US Foods Holding Corp.
Consumer Defensive
16,394,437 $1,511,731,034 1.59%
COR
Cencora, Inc.
Healthcare
4,482,817 $1,408,232,130 1.48%
MPC
Marathon Petroleum Corp
Energy
5,649,204 $1,379,422,630 1.45%
LPLA
LPL Financial Holdings Inc.
Financial Services
4,131,498 $1,242,878,542 1.30%
BKNG
Booking Holdings Inc.
Consumer Cyclical
277,977 $1,170,372,065 1.23%
FANG
Diamondback Energy, Inc.
Energy
5,766,947 $1,140,644,445 1.20%
AMZN
Amazon Com Inc
Consumer Cyclical
5,449,163 $1,134,897,176 1.19%
KGC
Kinross Gold Corp
Basic Materials
34,849,647 $1,063,611,225 1.12%
MCK
Mckesson Corp
Healthcare
1,155,049 $999,533,200 1.05%

Portfolio Trend

24 quarters · across all stocks

Holdings in KOS

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Shares Held

Position Value (USD)

20 of 20 shown
Report Date Value (USD) Shares
2026-03-31 $13,223,267 4,756,571
2024-12-31 $2,261,033 661,121
2024-09-30 $20,246,529 5,023,953
2024-06-30 $38,742,001 6,993,141
2024-03-31 $34,633,665 5,811,018
2023-12-31 $29,561,970 4,405,659
2023-09-30 $60,916,908 7,447,055
2023-06-30 $45,267,069 7,557,107
2023-03-31 $56,222,374 7,556,771
2022-12-31 $46,079,266 7,245,168
2022-09-30 $36,624,670 7,084,076
2022-06-30 $43,879,542 7,088,779
2022-03-31 $78,081,120 10,859,683
2021-12-31 $39,252,201 11,344,567
2021-09-30 $32,498,032 10,979,065
2021-06-30 $38,237,632 11,051,339
2021-03-31 $32,338,293 10,533,646
2020-09-30 $412,122 420,533
2020-06-30 $679,881 409,567
2020-03-31 $14,679,823 16,310,915