Costco Wholesale Corp
COST- Exchange
- Nasdaq
- Industry
- Retail-Variety Stores
- SEC CIK
- 0000909832
In the last 90 days, Costco Wholesale Corp insiders filed 0 open-market purchases and 2 sales; 4,261 institutions reported holding it in 13F filings for Q2 2026, worth $301.8B in total; 4 superinvestors hold it, including Markel Group and Gardner Russo & Quinn.
13F holders, Q1 2026
Institutional positions in Costco Wholesale Corp as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 4,274
- +198 vs. Q4 2025
- Shares held
- 320.3M
- +54.2M (+20.4%) vs. Q4 2025
- Total value
- $311.5B
- +$83.3B (+36.5%) vs. Q4 2025
- New holders
- 323
- 1,797 more added
- Sold out
- 125
- 1,638 more reduced
62 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting COST on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 4,261 | $301.8B |
| Q1 2026 | 4,274 | $311.5B |
| Q4 2025 | 4,138 | $272.0B |
| Q3 2025 | 3,941 | $274.4B |
| Q2 2025 | 4,011 | $302.3B |
| Q1 2025 | 3,952 | $287.8B |
| Q4 2024 | 3,941 | $279.6B |
| Q3 2024 | 3,590 | $266.7B |
| Q2 2024 | 3,526 | $258.3B |
| Q1 2024 | 3,419 | $222.0B |
| Q4 2023 | 3,343 | $201.0B |
| Q3 2023 | 3,077 | $169.9B |
| Q2 2023 | 3,041 | $162.0B |
| Q1 2023 | 2,943 | $149.2B |
| Q4 2022 | 2,938 | $137.2B |
| Q3 2022 | 2,825 | $141.6B |
| Q2 2022 | 2,784 | $143.4B |
| Q1 2022 | 2,862 | $172.4B |
| Q4 2021 | 2,823 | $170.2B |
| Q3 2021 | 2,463 | $134.3B |
| Q2 2021 | 2,394 | $119.0B |
| Q1 2021 | 2,359 | $104.1B |
Institutions, Q1 2026
Shares, value and share of portfolio for each institution holding Costco Wholesale Corp; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Advisors Capital Management, LLC | 46,873 | $46.7M | 0.54% | +1,223+2.7% | Added |
| Teachers Retirement System of the State of Kentucky | 46,745 | $46.6M | 0.36% | 00.0% | Unchanged |
| Main Street Research LLC | 46,139 | $46.0M | 2.68% | −16,227−26.0% | Reduced |
| Nomura Holdings Inc | 46,015 | $45.9M | 0.38% | −80,990−63.8% | Reduced |
| Parallel Advisors, LLC | 45,954 | $45.8M | 0.82% | +432+0.9% | Added |
| Allstate Corp | 45,944 | $45.8M | 0.49% | +11,969+35.2% | Added |
| Prime Capital Investment Advisors, LLC | 45,729 | $45.6M | 0.53% | +10.0% | Added |
| Cumberland Partners Ltd | 45,532 | $45.4M | 3.44% | +3,134+7.4% | Added |
| Baltimore-Washington Financial Advisors, Inc. | 45,254 | $45.1M | 1.95% | +758+1.7% | Added |
| Foster Dykema Cabot & Partners, LLC | 45,089 | $44.9M | 2.86% | −148−0.3% | Reduced |
| Bridges Investment Management Inc | 45,009 | $44.8M | 0.61% | −256−0.6% | Reduced |
| Groupe la Francaise | 44,997 | $44.6M | 0.62% | −42−0.1% | Reduced |
| Pacer Advisors, Inc. | 44,035 | $43.9M | 0.13% | −30,032−40.5% | Reduced |
| Harvest Fund Management Co., Ltd | 43,699 | $43.5M | 1.85% | +3,465+8.6% | Added |
| Credit Agricole S A | 43,683 | $43.5M | 0.14% | −46,634−51.6% | Reduced |
| IMC-Chicago, LLC | 43,605 | $43.4M | 0.66% | +43,605 | New |
| Equitable Holdings, Inc. | 48,248 | $43.4M | 0.28% | +8,585+21.6% | Added |
| Tandem Investment Advisors, Inc. | 43,412 | $43.3M | 2.12% | −7,379−14.5% | Reduced |
| Prudential PLC | 43,342 | $43.2M | 0.33% | +1,774+4.3% | Added |
| Mesirow Financial Investment Management, Inc. | 43,295 | $43.1M | 0.70% | +24+0.1% | Added |
| Nordea Investment Management AB | 43,112 | $42.7M | 0.04% | −11,378−20.9% | Reduced |
| Union Bancaire Privee, UBP SA | 36,190 | $42.2M | 0.77% | −3,359−8.5% | Reduced |
| Merit Financial Group, LLC | 42,027 | $41.9M | 0.31% | +6,858+19.5% | Added |
| Chilton Capital Management LLC | 42,013 | $41.9M | 1.46% | −798−1.9% | Reduced |
| YHB Investment Advisors, Inc. | 41,615 | $41.5M | 2.97% | −627−1.5% | Reduced |
| Blue Sparrow, LLC | 41,590 | $41.4M | 0.71% | −12,710−23.4% | Reduced |
| Fiduciary Trust Co | 41,304 | $41.2M | 0.49% | −809−1.9% | Reduced |
| Walleye Capital LLC | 41,275 | $41.1M | 0.25% | +4,345+11.8% | Added |
| Zacks Investment Management | 41,030 | $40.9M | 0.33% | +1,322+3.3% | Added |
| Steadfast Capital Management LP | 40,750 | $40.6M | 1.53% | −67,952−62.5% | Reduced |
| Adell Harriman & Carpenter Inc | 40,296 | $40.2M | 2.45% | +343+0.9% | Added |
| Investment Management Corp of Ontario | 40,257 | $40.1M | 0.52% | −1,600−3.8% | Reduced |
| Marco Investment Management LLC | 40,207 | $40.1M | 3.02% | −31−0.1% | Reduced |
| Annex Advisory Services, LLC | 40,118 | $40.0M | 0.75% | +606+1.5% | Added |
| Randolph Co Inc | 40,074 | $39.9M | 3.81% | +100.0% | Added |
| Capital International Ltd | 39,951 | $39.8M | 1.48% | +152+0.4% | Added |
| Freestone Capital Holdings, LLC | 39,735 | $39.6M | 1.21% | −334−0.8% | Reduced |
| Bailard, Inc. | 39,522 | $39.4M | 0.91% | +168+0.4% | Added |
| Vident Advisory, LLC | 39,430 | $39.3M | 0.33% | +4,650+13.4% | Added |
| Cornerstone Advisors, LLC | 39,204 | $39.1M | 1.44% | +6,504+19.9% | Added |
| Markel Group Inc.SuperinvestorMarkel Group | 39,150 | $39.0M | 0.33% | 00.0% | Unchanged |
| Vontobel Holding Ltd. | 38,623 | $38.5M | 0.13% | −1,267−3.2% | Reduced |
| Rafferty Asset Management, LLC | 38,530 | $38.4M | 0.16% | −13,340−25.7% | Reduced |
| Cadinha & Co LLC | 38,284 | $38.1M | 7.11% | −219−0.6% | Reduced |
| Citizens Financial Group Inc | 38,237 | $38.1M | 0.53% | −1,017−2.6% | Reduced |
| TruWealth Advisors, LLC | 38,183 | $38.0M | 1.83% | +1,156+3.1% | Added |
| Highland Capital Management, LLC | 37,954 | $37.8M | 2.00% | −1,837−4.6% | Reduced |
| Tokio Marine Asset Management Co Ltd | 37,779 | $37.6M | 1.35% | +3,851+11.4% | Added |
| Trajan Wealth LLC | 37,665 | $37.5M | 1.59% | −1,293−3.3% | Reduced |
| united american securities inc. (d/b/a uas asset management) | 37,339 | $37.2M | 8.12% | −286−0.8% | Reduced |
| Advisors Asset Management, Inc. | 37,305 | $37.2M | 0.62% | +979+2.7% | Added |
| Park National Corp | 36,619 | $36.5M | 1.11% | +805+2.2% | Added |
| Whittier Trust Co of Nevada Inc | 35,719 | $36.4M | 0.75% | +1,784+5.3% | Added |
| Clarity Financial LLC | 36,372 | $36.2M | 3.94% | +127+0.4% | Added |
| Martingale Asset Management L P | 36,143 | $36.0M | 0.90% | −1,849−4.9% | Reduced |
| Omers Administration Corp | 35,963 | $35.8M | 0.23% | +8,286+29.9% | Added |
| Pinnacle Associates Ltd | 35,904 | $35.8M | 0.46% | +27+0.1% | Added |
| Carnegie Capital Asset Management, LLC | 35,842 | $35.7M | 0.70% | −752−2.1% | Reduced |
| Renaissance Group LLC | 35,719 | $35.6M | 1.49% | +35,719 | New |
| Horizon Investments, LLC | 35,622 | $35.4M | 0.40% | +7,727+27.7% | Added |
| Atlantic Union Bankshares Corp | 35,411 | $35.3M | 0.68% | −152−0.4% | Reduced |
| Verition Fund Management LLC | 35,363 | $35.2M | 0.34% | +17,416+97.0% | Added |
| NewEdge Wealth, LLC | 35,321 | $35.2M | 0.42% | +1,389+4.1% | Added |
| Barlow Wealth Partners, Inc. | 35,110 | $35.1M | 3.90% | +283+0.8% | Added |
| Birch Hill Investment Advisors LLC | 35,039 | $34.9M | 1.57% | −226−0.6% | Reduced |
| Banco Bilbao Vizcaya Argentaria, S.A. | 35,006 | $34.8M | 0.24% | +4,833+16.0% | Added |
| Independent Financial Group, LLC | 34,887 | $34.8M | 0.78% | −104−0.3% | Reduced |
| Lincoln Capital LLC | 34,545 | $34.4M | 6.52% | −272−0.8% | Reduced |
| Clearbridge Investments, LLC | 34,526 | $34.4M | 0.03% | −9,359−21.3% | Reduced |
| Charter Trust Co | 34,403 | $34.3M | 2.01% | −27−0.1% | Reduced |
| Blue Chip Partners, Inc. | 34,381 | $34.3M | 2.47% | +1,830+5.6% | Added |
| Achmea Investment Management B.V. | 34,345 | $34.2M | 0.90% | −8,679−20.2% | Reduced |
| Gulf International Bank (UK) Ltd | 34,323 | $34.2M | 0.77% | +11,767+52.2% | Added |
| Silvercrest Asset Management Group LLC | 34,072 | $34.0M | 0.25% | −1,111−3.2% | Reduced |
| Cresset Asset Management, LLC | 33,947 | $33.8M | 0.15% | +384+1.1% | Added |
| Kiley Juergens Wealth Management, LLC | 33,549 | $33.4M | 5.90% | −97−0.3% | Reduced |
| Ironvine Capital Partners, LLC | 33,513 | $33.4M | 3.67% | −100.0% | Reduced |
| CWA Asset Management Group, LLC | 33,352 | $33.2M | 1.14% | −1,266−3.7% | Reduced |
| NorthCrest Asset Manangement, LLC | 32,528 | $33.0M | 1.03% | −11,590−26.3% | Reduced |
| Estabrook Capital Management | 33,040 | $32.9M | 4.80% | −91−0.3% | Reduced |
| Madison Asset Management, LLC | 33,040 | $32.9M | 0.41% | +5,459+19.8% | Added |
| Jain Global LLC | 33,013 | $32.9M | 0.42% | +12,268+59.1% | Added |
| General American Investors Co Inc | 33,000 | $32.9M | 2.17% | 00.0% | Unchanged |
| Dearborn Partners LLC | 32,064 | $31.9M | 1.73% | −2,799−8.0% | Reduced |
| Harvey Investment Co LLC | 31,747 | $31.6M | 3.48% | −545−1.7% | Reduced |
| Profund Advisors LLC | 31,731 | $31.6M | 1.16% | −6,447−16.9% | Reduced |
| Kames Capital plc | 31,711 | $31.6M | 0.42% | −4,903−13.4% | Reduced |
| Elo Mutual Pension Insurance Co | 31,578 | $31.5M | 0.52% | −10,622−25.2% | Reduced |
| UniSuper Management Pty Ltd | 31,500 | $31.4M | 0.21% | +481+1.6% | Added |
| Coldstream Capital Management Inc | 31,472 | $31.4M | 0.39% | +4,509+16.7% | Added |
| Beese Fulmer Investment Management, Inc. | 31,391 | $31.3M | 2.00% | −31,315−49.9% | Reduced |
| Private Wealth Partners, LLC | 30,912 | $30.8M | 2.37% | −265−0.8% | Reduced |
| IFP Advisors, Inc | 30,884 | $30.8M | 0.64% | +9,783+46.4% | Added |
| Neville Rodie & Shaw Inc | 30,691 | $30.6M | 2.22% | −231−0.7% | Reduced |
| Jane Street Group, LLC | 30,668 | $30.6M | 0.03% | −72,983−70.4% | Reduced |
| HB Wealth Management, LLC | 30,632 | $30.5M | 0.20% | +3,235+11.8% | Added |
| B. Metzler seel. Sohn & Co. AG | 30,425 | $30.3M | 0.28% | −2,129−6.5% | Reduced |
| Aptus Capital Advisors, LLC | 30,381 | $30.3M | 0.25% | −533−1.7% | Reduced |
| Harbour Trust & Investment Management Co | 30,261 | $30.2M | 3.20% | +824+2.8% | Added |
| Diversify Wealth Management, LLC | 30,141 | $30.1M | 0.54% | +17,470+137.9% | Added |