Manager × security

Robeco Institutional Asset Management B.V. COST holdings history

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COSTCO WHOLESALE CORP · CUSIP 22160K105 · CIK 1418773

This is the oldest quarter open without an account, so changes against the quarter before it are withheld. Sign in to see them.
Citable facts

As of 2026-06-30, Robeco Institutional Asset Management B.V. reported 346.80K COST (shares), valued at $324.42M, or 0.40% of its reported non-derivative portfolio. Filed 2026-07-21.

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Portfolio weight and quantity history
Reported portfolio weight
0.40%
Shares
346.80K
346,795
Reported value
$324.42M
USD

Shares increased 19.17%; reported value increased 11.88%, and weight changed -0.01 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.

Left: % · Right: Shares · Independently scaled axes

Exact data and methodology

Axes scale independently; a crossing does not mean equal values. Weight uses each quarter's total reported non-derivative value. Same CUSIP; missing quarters are gaps, not zero. Revised history may include later disclosures.

QuarterWeightQuantitySource
Q2 20260.40%346,795SEC filing ↗Filed Jul 21, 2026Combination report
Q1 20260.41%291,006SEC filing ↗Filed Apr 21, 2026Combination report
Q4 20250.33%269,502SEC filing ↗Filed Jan 23, 2026Combination report
Q3 20250.51%378,354SEC filing ↗Filed Oct 22, 2025Combination report
Q2 20250.70%436,708SEC filing ↗Filed Jul 18, 2025Combination report
Q1 20250.83%453,339SEC filing ↗Filed Apr 23, 2025Combination report
Q4 20241.02%586,584SEC filing ↗Filed Jan 23, 2025Combination report
Q3 20241.10%627,348SEC filing ↗Filed Oct 29, 2024Combination report
Q2 20241.27%691,694SEC filing ↗Filed Jul 23, 2024Combination report
Q1 20241.31%822,444SEC filing ↗Filed Apr 24, 2024Combination report
Q4 20231.00%627,356SEC filing ↗Filed Feb 14, 2024AmendedCombination report
Q3 20231.00%664,531SEC filing ↗Filed Oct 24, 2023Combination report

History & evidence by quarter

QuarterWeightQuantityValueChange explainedSource
Q3 20231.00%664,531$375.43MThe prior quarter is outside the free window. Sign in for the comparison.SEC filing ↗
Filed Oct 24, 2023
Q4 20231.00%627,356$414.11MShares decreased 5.59%; reported value increased 10.30%, and weight changed +0.00 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed Feb 14, 2024
Q1 20241.31%822,444$602.55MShares increased 31.10%; reported value increased 45.51%, and weight changed +0.31 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed Apr 24, 2024
Q2 20241.27%691,694$587.93MShares decreased 15.90%; reported value decreased 2.43%, and weight changed -0.04 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed Jul 23, 2024
Q3 20241.10%627,348$556.16MShares decreased 9.30%; reported value decreased 5.40%, and weight changed -0.17 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed Oct 29, 2024
Q4 20241.02%586,584$537.47MShares decreased 6.50%; reported value decreased 3.36%, and weight changed -0.08 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed Jan 23, 2025
Q1 20250.83%453,339$428.76MShares decreased 22.72%; reported value decreased 20.23%, and weight changed -0.19 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed Apr 23, 2025
Q2 20250.70%436,708$432.31MShares decreased 3.67%; reported value increased 0.83%, and weight changed -0.13 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed Jul 18, 2025
Q3 20250.51%378,354$350.22MShares decreased 13.36%; reported value decreased 18.99%, and weight changed -0.19 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed Oct 22, 2025
Q4 20250.33%269,502$232.40MShares decreased 28.77%; reported value decreased 33.64%, and weight changed -0.18 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed Jan 23, 2026
Q1 20260.41%291,006$289.97MShares increased 7.98%; reported value increased 24.77%, and weight changed +0.08 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed Apr 21, 2026
Q2 20260.40%346,795$324.42MShares increased 19.17%; reported value increased 11.88%, and weight changed -0.01 pp. Weight depends on both the security valuation and total portfolio value, not trade proceeds.SEC filing ↗
Filed Jul 21, 2026
Robeco Institutional Asset Management B.V. · COSTCO WHOLESALE CORP

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Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.

13F reports quarter-end long positions in securities traded on US exchanges, filed by managers holding at least $100 million of such securities; it is not the manager's full portfolio, not assets under management, and value changes are not returns. Weights use the reported total value as denominator. Option rows show notional value, not premium or net exposure. Amendments are merged into the quarter when Akkru could match them.