COST — Costco Companies Inc COM

Ownership history in BALDWIN WEALTH PARTNERS LLC/MA  ·  51 quarters on record

AI Ownership Summary

BALDWIN WEALTH PARTNERS LLC/MA reported Costco Companies Inc COM (COST) in 51 quarterly 13F filings from 2023 Q4 through 2025 Q4. Peak portfolio weight reached 2.77% in 2023 Q4. The latest visible filing shows COST at 2.05% of the fund.

This page tracks quarterly shares, estimated market value, portfolio weight, filing dates, and disclosure-aligned stock prices directly from SEC EDGAR 13F filings. Older history is available after unlock; the visible window still shows the most recent pattern.

What this COST ownership page tells you

This page is designed to answer the real investor question behind a 13F filing: how meaningful was BALDWIN WEALTH PARTNERS LLC/MA's position in Costco Companies Inc COM, and how did that conviction change over time? You can read the holding window, peak weight, latest reported size, disclosure timing, and quarter-by-quarter changes without piecing the story together from raw SEC rows.

Freshest filing
Latest Reported Filing
2025 Q4

COST was reported at 2.05% of portfolio in the most recent visible filing.

High-water mark
Peak Conviction
2.77% in 2023 Q4

Peak weight helps separate a token disclosure from a real conviction holding the fund genuinely cared about.

Time in book
Holding Window
2023 Q4 to 2025 Q4

Longer holding windows often tell a very different story from short-lived tactical trades or one-quarter experiments.

Decision context
Why It Matters
Position size beats headlines

Knowing that a fund owned a stock is useful. Knowing whether it was a 0.20% placeholder or a true high-conviction position is where the signal actually starts.

COST stock page BALDWIN WEALTH PARTNERS LLC/MA fund profile BALDWIN WEALTH PARTNERS LLC/MA full holdings
How BALDWIN WEALTH PARTNERS LLC/MA held COST — position size vs. price
% of Fund (quarterly)    COST price (quarter-end, indexed to 100)
📋 Quarterly Holdings History 9 quarters  ▾
Quarter Action Shares Change Chg % % of Fund Mkt Value Filed Price (Filed)
2025 Q4 REDUCED 37,244 -539 -1.4% 2.05% $32.1M 2026-02-14 (Est.) $1018.48
2025 Q3 REDUCED 37,783 -511 -1.3% 2.28% $35.0M 2025-10-14 $943.88
2025 Q2 REDUCED 38,294 -368 -1.0% 2.57% $37.9M 2025-07-24 $929.92
2025 Q1 ADDED 38,662 +89 +0.2% 2.57% $36.6M 2025-04-14 $973.98
2024 Q4 REDUCED 38,573 -2,434 -5.9% 2.44% $35.3M 2025-01-22 $938.51
2024 Q3 REDUCED 41,007 -388 -0.9% 2.48% $36.4M 2024-10-16 $880.40
2024 Q2 REDUCED 41,395 -2,677 -6.1% 2.74% $35.2M 2024-07-12 $835.08
2024 Q1 REDUCED 44,072 -9,272 -17.4% 2.43% $32.3M 2024-04-12 $723.36
2023 Q4 REDUCED 53,344 -438 -0.8% 2.77% $35.2M 2024-01-08 $653.54
42 older quarters hidden  —  Sign in free or upgrade to Premium to see full history

🏢 Other funds also holding COST

As of 2026 Q1 — sorted by position size

Norman Fields, Gottscho Capital Management, LLC 3Y 7Y 18.84% Violich Capital Management, Inc. 3Y 7Y 5.64% Hoffman, Alan N Investment Management 3Y 5.54% McCollum Christoferson Group LLC 3Y 7Y 5.17% Constitution Capital LLC 3Y 4.87% Marex Group plc 4.84% Eastover Investment Advisors LLC 3Y 7Y 3.39% Cardinal Capital Management 3Y 7Y 2.67% Bath Savings Trust Co 3Y 7Y 2.61% Community Financial Services Group, LLC 3Y 7Y 2.59%

FAQ About BALDWIN WEALTH PARTNERS LLC/MA and COST

These are the practical questions this page is built to answer before you even open the full history table.

How long has BALDWIN WEALTH PARTNERS LLC/MA reported owning COST?

BALDWIN WEALTH PARTNERS LLC/MA reported COST across 9 quarterly 13F filings, from 2023 Q4 through 2025 Q4.

What was the largest reported COST position in BALDWIN WEALTH PARTNERS LLC/MA's portfolio?

The largest reported portfolio weight for COST was 2.77% in 2023 Q4.

What is the latest reported COST position on this page?

The most recent filing on this page is 2025 Q4, when BALDWIN WEALTH PARTNERS LLC/MA reported 37,244 shares, equal to 2.05% of portfolio, with an estimated market value of $32.1M.

What does the chart on this COST ownership page compare?

The chart compares BALDWIN WEALTH PARTNERS LLC/MA's quarterly COST portfolio weight with the stock's indexed share price, so you can see whether the fund was building, trimming, or holding the position as price moved.

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