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Position history for Robeco Institutional Asset Management B.V.Robeco Institutional Asset Management B.V.'s holdings in COSTCO WHOLESALE CORPORATION

Yes. Robeco Institutional Asset Management holds 191,711 shares of COST (Costco Wholesale), worth $174.5M, as of its Q3 2026 13F filing. It reduced the position by 155,084 shares (-44.7%) from Q2 2026. Robeco Institutional Asset Management has held COST in every 13F on record since Q1 2019, 31 quarterly filings. COST is 0.2% of Robeco Institutional Asset Management's reported 13F portfolio.

Current Value

$174.5M

Current Shares

191,711

Total Value Change

-$381.6M

Total Shares Change

-435,637

Quarter-by-Quarter History
QuarterActionSharesChangeValueWeightPriceConviction
2026-Q3
Latest
Decreased
191,711
-44.7%
$174.5M0.2%$910.34
0
2026-Q2
Increased
346,795
+19.2%
$324.4M0.4%$933.99
44
2026-Q1
Increased
291,006
+8.0%
$290M0.4%$993.41
40
2025-Q4
Decreased
269,502
-28.8%
$232.4M0.3%$858.55
0
2025-Q3
Decreased
378,354
-13.4%
$350.2M0.5%$920.26
0
2025-Q2
Decreased
436,708
-3.7%
$432.3M0.7%$982.84
0
2025-Q1
Decreased
453,339
-22.7%
$428.8M0.8%$937.77
0
2024-Q4
Decreased
586,584
-6.5%
$537.5M1.0%$907.51
0
2024-Q3
Decreased
627,348
-9.3%
$556.2M1.1%$876.88
0

Other major holders of COST: VANGUARD GROUP INC

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