Costco Wholesale (COST)
Costco Wholesale on one page: short interest, daily short volume, fails to deliver, planned sales, large holders, 13F holders, financials, earnings dates and insider trades. Listed on Nasdaq, classified by the SEC as retail-variety stores.
7.6M
Short interest
settlement 2026-10-15
3.7
Days to cover
+1.0 days vs prior
55.7%
Short share of volume
2026-10-28
46
Fails to deliver
settlement 2026-09-30
Thu 10 Dec
Next earnings
estimated date
-$3.8M
Insider flow, 90 days
0 buys, 3 sells
As of 2026-10-28.
Short interest
FINRA, twice a month. The newest 48 settlements in the table, 48 in the chart. JSONAs of 15 October 2026, short interest in COST is 7,600,821 shares, up 240,247 shares over the last month. Over the last 48 readings it ranged from 4,863,899 shares (15 July 2025) to 7,878,688 shares (29 May 2026). The latest reading sits at the top of that range. At the reported average volume of 2.0M shares a day that is 3.7 days to cover.
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| Settlement | Shares short | Change | Avg daily volume | Days to cover |
|---|---|---|---|---|
| 2026-10-15 | 7,600,821 | +3.8% | 2,040,452 | 3.73 |
| 2026-09-30 | 7,325,824 | -0.5% | 2,675,021 | 2.74 |
| 2026-09-15 | 7,360,574 | -2.9% | 2,005,794 | 3.67 |
| 2026-08-31 | 7,577,940 | +2.9% | 1,851,928 | 4.09 |
| 2026-08-14 | 7,364,782 | -3.8% | 1,682,135 | 4.38 |
| 2026-07-31 | 7,655,966 | +10.0% | 2,042,482 | 3.75 |
| 2026-07-15 | 6,957,664 | -4.5% | 2,532,106 | 2.75 |
| 2026-06-30 | 7,284,892 | -7.1% | 2,985,147 | 2.44 |
| 2026-06-15 | 7,837,886 | -0.5% | 2,171,244 | 3.61 |
| 2026-05-29 | 7,878,688 | +7.1% | 2,944,359 | 2.68 |
| 2026-05-15 | 7,357,205 | +9.4% | 1,844,723 | 3.99 |
| 2026-04-30 | 6,725,461 | +2.7% | 1,648,849 | 4.08 |
| 2026-04-15 | 6,550,081 | +4.0% | 1,917,216 | 3.42 |
| 2026-03-31 | 6,300,039 | +0.1% | 1,628,042 | 3.87 |
| 2026-03-13 | 6,295,610 | -1.5% | 1,952,006 | 3.23 |
| 2026-02-27 | 6,388,788 | -8.8% | 1,827,538 | 3.50 |
| 2026-02-13 | 7,002,026 | -1.7% | 2,417,078 | 2.90 |
| 2026-01-30 | 7,122,161 | -9.4% | 2,594,043 | 2.75 |
| 2026-01-15 | 7,859,282 | +5.4% | 2,887,500 | 2.72 |
| 2025-12-31 | 7,456,384 | +10.7% | 2,811,324 | 2.65 |
| 2025-12-15 | 6,737,305 | -12.3% | 2,939,659 | 2.29 |
| 2025-11-28 | 7,678,174 | +6.3% | 2,608,702 | 2.94 |
| 2025-11-14 | 7,220,010 | +4.1% | 2,470,013 | 2.92 |
| 2025-10-31 | 6,934,489 | -0.2% | 2,141,642 | 3.24 |
| 2025-10-15 | 6,948,318 | +3.9% | 2,486,342 | 2.79 |
| 2025-09-30 | 6,685,683 | +2.2% | 3,008,068 | 2.22 |
| 2025-09-15 | 6,542,302 | -4.3% | 1,748,092 | 3.74 |
| 2025-08-29 | 6,839,849 | +15.8% | 2,335,747 | 2.93 |
| 2025-08-15 | 5,905,078 | +6.0% | 2,197,705 | 2.69 |
| 2025-07-31 | 5,570,606 | +14.5% | 2,116,877 | 2.63 |
| 2025-07-15 | 4,863,899 | -14.3% | 1,966,880 | 2.47 |
| 2025-06-30 | 5,679,064 | +10.7% | 2,125,089 | 2.67 |
| 2025-06-13 | 5,131,365 | -6.1% | 2,045,161 | 2.51 |
| 2025-05-30 | 5,463,586 | -11.4% | 2,158,904 | 2.53 |
| 2025-05-15 | 6,168,845 | +2.3% | 1,872,300 | 3.29 |
| 2025-04-30 | 6,031,885 | -0.2% | 2,196,394 | 2.75 |
| 2025-04-15 | 6,044,126 | +1.7% | 3,270,647 | 1.85 |
| 2025-03-31 | 5,945,254 | -13.4% | 2,160,036 | 2.75 |
| 2025-03-14 | 6,866,248 | -3.0% | 3,131,771 | 2.19 |
| 2025-02-28 | 7,080,224 | +2.1% | 1,931,300 | 3.67 |
| 2025-02-14 | 6,935,102 | +17.8% | 1,892,825 | 3.66 |
| 2025-01-31 | 5,889,145 | -7.3% | 1,935,386 | 3.04 |
| 2025-01-15 | 6,355,090 | -2.9% | 1,872,942 | 3.39 |
| 2024-12-31 | 6,541,237 | +1.4% | 2,226,899 | 2.94 |
| 2024-12-13 | 6,454,378 | -2.0% | 1,967,069 | 3.28 |
| 2024-11-29 | 6,588,840 | +1.6% | 1,831,750 | 3.60 |
| 2024-11-15 | 6,485,763 | +8.2% | 2,025,379 | 3.20 |
| 2024-10-31 | 5,993,302 | -2.5% | 1,449,732 | 4.13 |
Daily short volume
FINRA Reg SHO, the last 30 sessions. JSONAs of 28 October 2026, the short share of COST volume is 55.7%, up 4.1 points over the last five sessions. Over the last 30 readings it ranged from 33.4% (27 October 2026) to 56.8% (20 October 2026). The latest reading sits at the top of that range. The latest reading is 9.7 points above the 30-session average of 46.0%, on 538K shares reported.
| Date | Short volume | Total volume | Short share | Exempt |
|---|---|---|---|---|
| 2026-10-28 | 300K | 538K | 55.7% | 590 |
| 2026-10-27 | 189K | 567K | 33.4% | 310 |
| 2026-10-26 | 231K | 623K | 37.0% | 461 |
| 2026-10-23 | 284K | 589K | 48.3% | 204 |
| 2026-10-22 | 391K | 809K | 48.4% | 1,287 |
| 2026-10-21 | 253K | 490K | 51.6% | 974 |
| 2026-10-20 | 378K | 666K | 56.8% | 685 |
| 2026-10-19 | 327K | 632K | 51.8% | 364 |
| 2026-10-16 | 328K | 699K | 47.0% | 464 |
| 2026-10-15 | 479K | 1.2M | 40.5% | 1,061 |
| 2026-10-14 | 504K | 1.2M | 43.0% | 2,845 |
| 2026-10-13 | 206K | 467K | 44.1% | 2,136 |
| 2026-10-12 | 259K | 586K | 44.2% | 912 |
| 2026-10-09 | 194K | 570K | 34.0% | 128 |
| 2026-10-08 | 372K | 913K | 40.8% | 973 |
| 2026-10-07 | 366K | 754K | 48.6% | 440 |
| 2026-10-06 | 284K | 654K | 43.5% | 607 |
| 2026-10-05 | 330K | 756K | 43.6% | 1,448 |
| 2026-10-02 | 300K | 714K | 42.0% | 387 |
| 2026-10-01 | 396K | 853K | 46.4% | 310 |
| 2026-09-30 | 365K | 701K | 52.0% | 166 |
| 2026-09-29 | 454K | 893K | 50.9% | 1,281 |
| 2026-09-28 | 315K | 756K | 41.6% | 1,234 |
| 2026-09-25 | 658K | 1.7M | 38.4% | 1,524 |
| 2026-09-24 | 509K | 1.1M | 47.0% | 199 |
| 2026-09-23 | 334K | 705K | 47.4% | 418 |
| 2026-09-22 | 402K | 826K | 48.6% | 383 |
| 2026-09-21 | 368K | 790K | 46.6% | 148 |
| 2026-09-18 | 377K | 670K | 56.3% | 1,562 |
| 2026-09-17 | 398K | 805K | 49.4% | 207 |
Fails to deliver
SEC, the last 30 settlement dates with a fail. JSONAs of 30 September 2026, the fails-to-deliver balance in COST is 46 shares, down 869 shares over the last settlement date. Over the last 30 readings it ranged from 1 share (24 June 2026) to 16,921 shares (1 July 2026). The latest reading sits at the bottom of that range.
| Settlement | Shares failed | Price | Value |
|---|---|---|---|
| 2026-09-30 | 46 | $924.59 | $43K |
| 2026-09-28 | 915 | $922.77 | $844K |
| 2026-09-24 | 732 | $904.70 | $662K |
| 2026-09-21 | 9,643 | $895.31 | $8.6M |
| 2026-08-26 | 21 | $960.01 | $20K |
| 2026-08-25 | 7,663 | $971.40 | $7.4M |
| 2026-08-21 | 21 | $933.51 | $20K |
| 2026-08-19 | 473 | $961.35 | $455K |
| 2026-08-18 | 19 | $953.50 | $18K |
| 2026-08-17 | 8,285 | $961.10 | $8.0M |
| 2026-08-13 | 7 | $949.58 | $7K |
| 2026-08-11 | 2,208 | $952.75 | $2.1M |
| 2026-08-10 | 3,000 | $947.82 | $2.8M |
| 2026-08-07 | 621 | $949.15 | $589K |
| 2026-08-03 | 886 | $951.89 | $843K |
| 2026-07-29 | 312 | $966.58 | $302K |
| 2026-07-28 | 49 | $951.58 | $47K |
| 2026-07-24 | 533 | $926.06 | $494K |
| 2026-07-23 | 17 | $927.31 | $16K |
| 2026-07-20 | 15 | $940.87 | $14K |
| 2026-07-14 | 13 | $926.43 | $12K |
| 2026-07-13 | 674 | $916.25 | $618K |
| 2026-07-10 | 32 | $912.97 | $29K |
| 2026-07-07 | 177 | $950.25 | $168K |
| 2026-07-06 | 1,581 | $951.67 | $1.5M |
| 2026-07-01 | 16,921 | $935.47 | $15.8M |
| 2026-06-30 | 59 | $946.68 | $56K |
| 2026-06-24 | 1 | $957.68 | $958 |
| 2026-06-16 | 2 | $979.45 | $2K |
| 2026-06-15 | 937 | $982.35 | $920K |
Insider trades
SEC Form 4, newest first. JSONInsiders at COST reported 3 open-market sells worth $3.8M in the last 90 days and no open-market buys. Latest filing: Sullivan John Christopher (Executive VP) on 2026-10-22.
| Date | Insider | Title | Type | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|---|
| 2026-10-22 | Sullivan John Christopher | Executive VP | Tax withholding | 836 | $1018.21 | $851K | 48K |
| 2026-10-22 | Sullivan John Christopher | Executive VP | Tax withholding | 732 | $1018.21 | $746K | 49K |
| 2026-10-22 | Sullivan John Christopher | Executive VP | Tax withholding | 975 | $1018.21 | $993K | 50K |
| 2026-10-22 | Sullivan John Christopher | Executive VP | Tax withholding | 647 | $1018.21 | $659K | 51K |
| 2026-10-22 | Sullivan John Christopher | Executive VP | Tax withholding | 573 | $1018.21 | $583K | 52K |
| 2026-10-22 | Sullivan John Christopher | Executive VP | Grant | 5K | $0.00 | $0 | 52K |
| 2026-10-22 | Self Adam Webb | Executive Vice President | Tax withholding | 41 | $1018.21 | $41K | 3K |
| 2026-10-22 | Self Adam Webb | Executive Vice President | Tax withholding | 36 | $1018.21 | $37K | 3K |
| 2026-10-22 | Self Adam Webb | Executive Vice President | Tax withholding | 57 | $1018.21 | $58K | 3K |
| 2026-10-22 | Self Adam Webb | Executive Vice President | Tax withholding | 64 | $1018.21 | $65K | 3K |
| 2026-10-22 | Self Adam Webb | Executive Vice President | Tax withholding | 62 | $1018.21 | $63K | 3K |
| 2026-10-22 | POLIT JAVIER | Executive Vice President | Tax withholding | 549 | $1018.21 | $559K | 13K |
| 2026-10-22 | POLIT JAVIER | Executive Vice President | Tax withholding | 337 | $1018.21 | $343K | 13K |
| 2026-10-22 | POLIT JAVIER | Executive Vice President | Tax withholding | 294 | $1018.21 | $300K | 14K |
| 2026-10-22 | POLIT JAVIER | Executive Vice President | Tax withholding | 391 | $1018.21 | $398K | 14K |
| 2026-10-22 | POLIT JAVIER | Executive Vice President | Grant | 4K | $0.00 | $0 | 14K |
| 2026-10-22 | Vachris Roland Michael | President and CEO | Tax withholding | 1K | $1018.21 | $1.2M | 63K |
| 2026-10-22 | Vachris Roland Michael | President and CEO | Tax withholding | 1K | $1018.21 | $1.1M | 64K |
| 2026-10-22 | Vachris Roland Michael | President and CEO | Tax withholding | 1K | $1018.21 | $1.4M | 65K |
| 2026-10-22 | Vachris Roland Michael | President and CEO | Grant | 14K | $0.00 | $0 | 66K |
| 2026-10-22 | MILLERCHIP GARY | Executive Vice President | Tax withholding | 817 | $1018.21 | $832K | 20K |
| 2026-10-22 | MILLERCHIP GARY | Executive Vice President | Tax withholding | 500 | $1018.21 | $509K | 21K |
| 2026-10-22 | MILLERCHIP GARY | Executive Vice President | Tax withholding | 313 | $1018.21 | $319K | 21K |
| 2026-10-22 | MILLERCHIP GARY | Executive Vice President | Grant | 6K | $0.00 | $0 | 22K |
| 2026-10-22 | RAIKES JEFFREY S | Director | Grant | 266 | $0.00 | $0 | 6K |
| 2026-10-22 | Raimondo Gina Marie | Director | Grant | 266 | $0.00 | $0 | 481 |
| 2026-10-22 | STANTON JOHN W | Director | Grant | 266 | $0.00 | $0 | 24K |
| 2026-10-22 | Wilderotter Mary Agnes | Director | Grant | 266 | $0.00 | $0 | 9K |
| 2026-10-22 | JEWELL SARAH MR SALLY | Director | Grant | 266 | $0.00 | $0 | 4K |
| 2026-10-22 | Klauer James C | Executive Vice President | Tax withholding | 542 | $1018.21 | $552K | 46K |
| 2026-10-22 | Klauer James C | Executive Vice President | Tax withholding | 443 | $1018.21 | $451K | 46K |
| 2026-10-22 | Klauer James C | Executive Vice President | Tax withholding | 530 | $1018.21 | $540K | 47K |
| 2026-10-22 | Klauer James C | Executive Vice President | Tax withholding | 396 | $1018.21 | $403K | 47K |
| 2026-10-22 | Klauer James C | Executive Vice President | Tax withholding | 191 | $1018.21 | $194K | 48K |
| 2026-10-22 | Adamo Claudine | Executive Vice President | Tax withholding | 109 | $1018.21 | $111K | 6K |
| 2026-10-22 | Adamo Claudine | Executive Vice President | Tax withholding | 111 | $1018.21 | $113K | 7K |
| 2026-10-22 | Adamo Claudine | Executive Vice President | Tax withholding | 177 | $1018.21 | $180K | 7K |
| 2026-10-22 | Adamo Claudine | Executive Vice President | Tax withholding | 198 | $1018.21 | $202K | 7K |
| 2026-10-22 | Adamo Claudine | Executive Vice President | Tax withholding | 97 | $1018.21 | $99K | 7K |
| 2026-10-22 | Barbre Tiffany Marie | Principal Accounting Officer | Tax withholding | 166 | $1018.21 | $169K | 7K |
| 2026-10-22 | Barbre Tiffany Marie | Principal Accounting Officer | Tax withholding | 85 | $1018.21 | $86K | 7K |
| 2026-10-22 | Barbre Tiffany Marie | Principal Accounting Officer | Tax withholding | 102 | $1018.21 | $103K | 7K |
| 2026-10-22 | Barbre Tiffany Marie | Principal Accounting Officer | Tax withholding | 94 | $1018.21 | $96K | 7K |
| 2026-10-22 | Barbre Tiffany Marie | Principal Accounting Officer | Tax withholding | 90 | $1018.21 | $92K | 7K |
| 2026-10-22 | Barbre Tiffany Marie | Principal Accounting Officer | Grant | 2K | $0.00 | $0 | 7K |
| 2026-10-22 | DECKER SUSAN L | Director | Grant | 266 | $0.00 | $0 | 9K |
| 2026-10-22 | DENMAN KENNETH D | Director | Grant | 266 | $0.00 | $0 | 5K |
| 2026-10-22 | Foulkes Helena | Director | Grant | 266 | $0.00 | $0 | 1K |
| 2026-10-22 | George Sarah Catherine | Executive Vice President | Tax withholding | 47 | $1018.21 | $48K | 4K |
| 2026-10-22 | George Sarah Catherine | Executive Vice President | Tax withholding | 35 | $1018.21 | $35K | 4K |
| 2026-10-22 | George Sarah Catherine | Executive Vice President | Tax withholding | 56 | $1018.21 | $57K | 4K |
| 2026-10-22 | George Sarah Catherine | Executive Vice President | Tax withholding | 62 | $1018.21 | $64K | 4K |
| 2026-10-22 | George Sarah Catherine | Executive Vice President | Tax withholding | 60 | $1018.21 | $61K | 4K |
| 2026-10-22 | JAMES HAMILTON E | Director | Grant | 266 | $0.00 | $0 | 56K |
| 2026-10-13 | Wilcox William Richard | Executive Vice President | Sell | 1K | $958.21 | $1.1M | 3K |
| 2026-09-29 | Adamo Claudine | Executive Vice President | Sell | 2K | $915.93 | $2.0M | 7K |
| 2026-09-29 | Frates Caton | Sr. Executive Vice President | Sell | 801 | $915.93 | $733K | 8K |
| 2026-09-10 | Wilcox William Richard | Executive Vice President | Tax withholding | 2K | $902.38 | $1.7M | 4K |
| 2026-09-10 | Wilcox William Richard | Executive Vice President | Grant | 4K | $0.00 | $0 | 6K |
| 2026-09-10 | Adamo Claudine | Executive Vice President | Tax withholding | 917 | $902.38 | $827K | 9K |
| 2026-09-10 | Adamo Claudine | Executive Vice President | Grant | 4K | $0.00 | $0 | 10K |
| 2026-09-10 | Frates Caton | Executive Vice President | Tax withholding | 2K | $902.38 | $1.5M | 9K |
| 2026-09-10 | Frates Caton | Executive Vice President | Grant | 5K | $0.00 | $0 | 10K |
| 2026-09-10 | Jones Teresa A. | Executive Vice President | Tax withholding | 1K | $902.38 | $1.3M | 7K |
| 2026-09-10 | Jones Teresa A. | Executive Vice President | Grant | 4K | $0.00 | $0 | 8K |
| 2026-09-10 | Klauer James C | Executive Vice President | Tax withholding | 936 | $902.38 | $845K | 48K |
| 2026-09-10 | Klauer James C | Executive Vice President | Grant | 4K | $0.00 | $0 | 49K |
| 2026-09-10 | Riel Pierre | Executive Vice President | Tax withholding | 2K | $902.38 | $1.4M | 14K |
| 2026-09-10 | Riel Pierre | Executive Vice President | Grant | 5K | $0.00 | $0 | 16K |
| 2026-09-10 | Rubanenko Yoram | Executive Vice President | Tax withholding | 2K | $902.38 | $1.5M | 11K |
| 2026-09-10 | Rubanenko Yoram | Executive Vice President | Grant | 4K | $0.00 | $0 | 12K |
| 2026-07-10 | RAIKES JEFFREY S | Director | Gift | 5K | $0.00 | $0 | 6K |
| 2026-06-23 | DENMAN KENNETH D | Director | Sell | 885 | $957.45 | $847K | 5K |
| 2026-04-01 | Frates Caton | Executive Vice President | Sell | 700 | $993.00 | $695K | 6K |
| 2026-03-12 | George Sarah Catherine | Executive Vice President | Discretionary trade | 642 | $991.21 | $636K | 0 |
| 2026-03-12 | George Sarah Catherine | Executive Vice President | Discretionary trade | 642 | $991.21 | $636K | 0 |
| 2026-03-11 | MILLERCHIP GARY | Executive Vice President | Tax withholding | 1K | $992.23 | $1.1M | 15K |
| 2026-03-11 | MILLERCHIP GARY | Executive Vice President | Tax withholding | 1K | $992.23 | $1.1M | 15K |
| 2026-03-09 | Adamo Claudine | Executive Vice President | Sell | 730 | $1003.02 | $732K | 6K |
| 2026-01-27 | RAIKES JEFFREY S | Director | Gift | 5K | $0.00 | $0 | 11K |
| 2026-01-27 | Jones Teresa A. | Executive Vice President | Gift | 300 | $0.00 | $0 | 4K |
| 2026-01-21 | Jones Teresa A. | Executive Vice President | Sell | 850 | $986.26 | $838K | 4K |
| 2026-01-16 | DECKER SUSAN L | Director | Sell | 458 | $955.00 | $437K | 9K |
| 2026-01-16 | Raimondo Gina Marie | Director | Grant | 215 | $0.00 | $0 | 215 |
| 2026-01-14 | Klauer James C | Executive Vice President | Sell | 2K | $939.00 | $1.4M | 45K |
| 2026-01-09 | Miller Russell D | Sr. Executive Vice President | Sell | 2K | $916.32 | $1.4M | 8K |
| 2025-12-30 | POLIT JAVIER | Executive Vice President | Sell | 558 | $862.90 | $482K | 10K |
| 2025-12-30 | POLIT JAVIER | Executive Vice President | Sell | 558 | $862.89 | $482K | 10K |
| 2025-12-29 | POLIT JAVIER | Executive Vice President | Sell | 2K | $867.21 | $1.8M | 11K |
| 2025-12-19 | DENMAN KENNETH D | Director | Gift | 325 | $0.00 | $0 | 6K |
| 2025-12-15 | DECKER SUSAN L | Director | Gift | 3K | $0.00 | $0 | 9K |
| 2025-11-10 | RAIKES JEFFREY S | Director | Gift | 4K | $0.00 | $0 | 16K |
| 2025-11-07 | Wilcox William Richard | Executive Vice President | Sell | 2K | $930.13 | $2.2M | 2K |
| 2025-10-24 | Barbre Tiffany Marie | Other | Sell | 1K | $934.62 | $1.2M | 5K |
| 2025-10-24 | Barbre Tiffany Marie | Principal Accounting Officer | Sell | 1K | $934.62 | $1.2M | 5K |
| 2025-10-24 | Adamo Claudine | Executive Vice President | Sell | 3K | $935.68 | $2.5M | 7K |
| 2025-10-22 | Vachris Roland Michael | President and CEO | Tax withholding | 1K | $944.68 | $1.1M | 52K |
| 2025-10-22 | Vachris Roland Michael | President and CEO | Tax withholding | 1K | $944.68 | $1.4M | 53K |
| 2025-10-22 | Vachris Roland Michael | President and CEO | Grant | 14K | $0.00 | $0 | 55K |
| 2025-10-22 | Sullivan John Christopher | Executive VP | Tax withholding | 366 | $944.68 | $346K | 48K |
Form 4 filings are due within two business days of the trade. Insiders sell for many reasons that say nothing about the company; open-market buys are rarer.
Planned sales (Form 144)
Newest first. JSON19 Form 144 notices on file for COST worth $24.8M at the prices reported; 3 in the last 90 days worth $3.8M. Latest: Wilcox William Richard filed on 2026-10-13 to sell 1,100 shares ($1.1M) from 2026-10-13.
| Filed | Seller | Shares | Market value | Of outstanding | Sale from | Broker |
|---|---|---|---|---|---|---|
| 2026-10-13 | Wilcox William RichardOfficer | 1K | $1.1M | 0.000% | 2026-10-13 | Fidelity Brokerage Services LLC |
| 2026-09-29 | Adamo ClaudineOfficer | 2K | $2.0M | 0.000% | 2026-09-29 | Fidelity Brokerage Services LLC |
| 2026-09-29 | Frates CatonOfficer | 801 | $733K | 0.000% | 2026-09-29 | Fidelity Brokerage Services LLC |
| 2026-06-23 | DENMAN KENNETH DDirector | 885 | $847K | 0.000% | 2026-06-23 | Fidelity Brokerage Services LLC |
| 2026-06-12 | Callans Patrick JFormer Officer | 1K | $973K | 0.000% | 2026-06-12 | Fidelity Brokerage Services LLC |
| 2026-06-05 | Callans Patrick JFormer Officer | 1K | $995K | 0.000% | 2026-06-05 | Fidelity Brokerage Services LLC |
| 2026-04-01 | Caton FratesOfficer | 700 | $690K | 0.000% | 2026-04-01 | Merrill Lynch |
| 2026-03-09 | Adamo ClaudineOfficer | 730 | $732K | 0.000% | 2026-03-09 | Fidelity Brokerage Services LLC |
| 2026-01-21 | Jones Teresa A.Officer | 850 | $838K | 0.000% | 2026-01-21 | Fidelity Brokerage Services LLC |
| 2026-01-16 | SUSAN L DECKER TRUSTDirector | 458 | $437K | 0.000% | 2026-01-16 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2026-01-14 | Klauer James COfficer | 2K | $1.4M | 0.000% | 2026-01-14 | Fidelity Brokerage Services LLC |
| 2026-01-09 | THE MILLER FAMILY TRUSTOfficer | 2K | $1.4M | 0.000% | 2026-01-09 | Morgan Stanley Smith Barney LLC Executive Financial Services |
| 2025-12-30 | POLIT JAVIEROfficer | 559 | $482K | 0.000% | 2025-12-30 | Fidelity Brokerage Services LLC |
| 2025-12-29 | POLIT JAVIEROfficer | 2K | $1.8M | 0.000% | 2025-12-29 | Fidelity Brokerage Services LLC |
| 2025-11-07 | Wilcox William RichardOfficer | 2K | $2.2M | 0.001% | 2025-11-07 | Fidelity Brokerage Services LLC |
| 2025-10-24 | Barbre Tiffany MarieOfficer | 1K | $1.2M | 0.000% | 2025-10-24 | Fidelity Brokerage Services LLC |
| 2025-10-24 | Adamo ClaudineOfficer | 3K | $2.5M | 0.001% | 2025-10-24 | Fidelity Brokerage Services LLC |
| 2025-09-29 | Frates CatonOfficer | 2K | $1.4M | 0.000% | 2025-09-29 | Fidelity Brokerage Services LLC |
| 2025-09-29 | THE MILLER FAMILY TRUSTAffiliate | 3K | $3.1M | 0.001% | 2025-09-29 | Morgan Stanley Smith Barney LLC Executive Financial Services |
Large holders (13D and 13G)
One row per reporting person with its latest filing, newest first. JSON1 holder reports 5% or more of COST in its latest filing, on Schedule 13G (passive). The holder is Vanguard Capital Management at 7.5% of the class (33,256,639 shares), filed 2026-04-29 for an event on 2026-03-31.
| Filed | Form | Holder | Shares | Of class | Event |
|---|---|---|---|---|---|
| 2026-04-29 | 13G | Vanguard Capital Managementinvestment adviser | 33.3M | 7.5% | 2026-03-31 |
| 2026-03-26 | 13G/Ano. 10 | The Vanguard Groupinvestment adviser | 0 | 0.0% | 2026-03-13 |
13F holders
Tracked managers holding COST at their latest 13F. JSON7 of the 30 tracked managers held COST at their latest 13F, $6.83B in total at quarter-end prices. Fisher Asset Management is the largest at $3.04B (0.9% of its portfolio) as of 2026-06-30. Over the prior quarter 4 added shares and 3 cut.
| Fund | Quarter | Shares | Value | Of portfolio | Change in shares |
|---|---|---|---|---|---|
| Fisher Asset Management | 2026-06-30 | 3.3M | $3.04B | 0.91% | +33K |
| AQR Capital Management | 2026-06-30 | 1.3M | $1.17B | 0.41% | +226K |
| Two Sigma Investments | 2026-06-30 | 1.0M | $941.3M | 0.68% | +131K |
| D. E. Shaw & Co. | 2026-06-30 | 873K | $817.0M | 0.39% | -12K |
| Citadel Advisors | 2026-06-30 | 510K | $476.8M | 0.05% | -35K |
| Millennium Management | 2026-06-30 | 381K | $356.2M | 0.13% | +244K |
| Bridgewater Associates | 2026-06-30 | 27K | $24.8M | 0.10% | -1K |
Only the 30 tracked managers on the funds hub; a 13F reports long positions in US listed stock at quarter end, 45 days late, and says nothing about shorts or positions sold since.
Financials
SEC XBRL, as filed. JSONIn Q3 FY 2026 (quarter ended 2026-05-10) Costco Wholesale reported revenue of $70.53B, up 11.6% from the same quarter a year earlier, and net income of $2.19B (4.93 diluted EPS). In FY 2026 it generated $15.82B of operating cash flow and spent $848.0M on buybacks and $2.46B on dividends. As of 2026-08-30, cash was $20.21B against $3.91B of debt.
- Cash
- $20.21B
- Debt
- $3.91B
- Equity
- $35.80B
- Total assets
- $89.05B
- Shares outstanding
- 443,129,349
Quarterly, last 8 quarters
| Quarter | Period end | Revenue | Net income | Margin | Diluted EPS |
|---|---|---|---|---|---|
| Q3 FY 2026 | 2026-05-10 | $70.53B | $2.19B | 3.1% | 4.93 |
| Q1 FY 2026 | 2025-11-23 | $67.31B | $2.00B | 3.0% | 4.50 |
| Q3 FY 2025 | 2025-05-11 | $63.20B | $1.90B | 3.0% | 4.28 |
| Q1 FY 2025 | 2024-11-24 | $62.15B | $1.80B | 2.9% | 4.04 |
| Q3 FY 2024 | 2024-05-12 | $58.52B | $1.68B | 2.9% | 3.78 |
| Q1 FY 2024 | 2023-11-26 | $57.80B | $1.59B | 2.7% | 3.58 |
| Q3 FY 2023 | 2023-05-07 | $53.65B | $1.30B | 2.4% | 2.93 |
| Q1 FY 2023 | 2022-11-20 | $54.44B | $1.36B | 2.5% | 3.07 |
Fiscal years, with buybacks and dividends
| Fiscal year | Ends | Revenue | Net income | Operating cash flow | Capex | Buybacks | Dividends |
|---|---|---|---|---|---|---|---|
| FY 2026 | 2026-08-30 | $303.15B | $9.23B | $15.82B | $6.43B | $848.0M | $2.46B |
| FY 2025 | 2025-08-31 | $275.24B | $8.10B | $13.34B | $5.50B | $903.0M | $2.18B |
| FY 2024 | 2024-09-01 | $254.45B | $7.37B | $11.34B | $4.71B | $700.0M | $9.04B |
| FY 2023 | 2023-09-03 | $242.29B | $6.29B | $11.07B | $4.32B | $676.0M | $1.25B |
| FY 2022 | 2022-08-28 | $226.95B | $5.84B | $7.39B | $3.89B | $439.0M | $1.50B |
Quarters are the three-month figures the company reports; a fourth quarter marked derived is the fiscal year less the three reported quarters, since companies report it only inside the 10-K. Fiscal years are the annual figures. Buybacks are the cash the company paid to repurchase its common stock in the year, not the amount authorized. Balance sheet lines are as of 2026-08-30; shares outstanding as of 2026-09-29 from the cover page.
What this page is
Costco Wholesale in the regulatory record
Regulators publish company data in separate files that never sit next to each other: FINRA's twice-monthly short interest, its daily short sale volume, the SEC's fails-to-deliver counts, and each insider's Form 4. A company page puts those series for one ticker on one URL, with planned sales, large holders, 13F holders and financials beside them, so the short position, the daily flow, the settlement fails and what insiders are doing can be read together.
Each section has its own history table, a one-line summary of the latest figures and its own JSON and CSV links, and says when its source last updated.
This page follows Costco Wholesale (COST), SEC CIK 909832, listed on Nasdaq, classified by the SEC as retail-variety stores. The cross-market tables live on the short interest and insider transactions hubs.
Source and updates
- Short interest
- FINRA consolidated short interestSource: FINRA.Twice a month, about eight business days after settlement. Latest 2026-10-15.JSON and CSV
- Daily short volume
- FINRA Reg SHO daily filesSource: FINRA.Every trading day, the morning after FINRA posts it. Latest 2026-10-28.JSON and CSV
- Fails to deliver
- SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-09-30.JSON and CSV
- Planned sales
- SEC EDGAR Form 144Source: SEC.New notices appear shortly after the SEC posts them; a notice is filed on or before the sale. Latest 2026-10-13.JSON and CSV
- Large holders
- SEC EDGAR Schedule 13D and 13GSource: SEC.New filings appear shortly after the SEC posts them. A 13D is due within five business days of crossing 5%; a 13G follows the passive schedule. Latest 2026-04-29.JSON and CSV
- 13F holders
- SEC EDGAR Form 13F-HRSource: SEC.Quarterly, filed within 45 days of quarter end; 30 tracked managers. Latest 2026-06-30.JSON and CSV
- Financials
- SEC EDGAR 10-K and 10-Q filingsSource: SEC.Weekly; values are as filed in the 10-Q and 10-K. Latest 2026-05-10.JSON and CSV
- Earnings dates
- SEC EDGAR 8-K filings (Item 2.02)Source: SEC.Twice a day. Reported dates come from the company's 8-K filings; the next date is marked as an estimate until the 8-K arrives. Latest 2026-09-24.JSON and CSV
- Insider trades
- SEC EDGAR Form 4Source: SEC.New filings appear shortly after the SEC posts them; they're due two business days after the trade. Latest 2026-10-22.JSON and CSV
- Company record
- EDGAR filing index for CIK 909832Ticker, name and exchange from the SEC's company list, refreshed weekly.
- Rate limits
- 10 requests a minute without a key, 30 with a free key from a free account.
How to read it
- Read the position against the flow: rising short interest with a high daily short share is new shorting; rising short interest with a normal short share is old shorts holding on.
- Insider buys next to a large short position are rare and stand out; insider sells next to one are common and mean little.
- Fails to deliver matter relative to the float, not in absolute shares; a million failed shares in a mega cap is noise.
Analysis of what the data shows, not advice. XOOMAR does not recommend buying, selling or holding anything.
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Datasets
Frequently Asked Questions
How much of COST is sold short?
7,600,821 shares were held short at the 2026-10-15 settlement, 3.7 days of average volume. FINRA publishes the next count about eight business days after the 15th and the last business day of the month.
What is COST's daily short volume?
On 2026-10-28, 299,693 of the 537,965 COST shares reported to FINRA were sold short, 55.7% of the day's reported volume. Short volume is a flow for one day, not a position.
Does COST have fails to deliver?
The SEC's latest file shows 46 COST shares failed to deliver at settlement 2026-09-30. Fails are reported per settlement date and published twice a month with a lag.
Are COST insiders buying or selling?
Insiders at COST reported 3 open-market sells worth $3.8M in the last 90 days and no open-market buys. Latest filing: Sullivan John Christopher (Executive VP) on 2026-10-22.
Have COST insiders filed to sell?
19 Form 144 notices on file for COST worth $24.8M at the prices reported; 3 in the last 90 days worth $3.8M. Latest: Wilcox William Richard filed on 2026-10-13 to sell 1,100 shares ($1.1M) from 2026-10-13.
Who owns 5% or more of COST?
1 holder reports 5% or more of COST in its latest filing, on Schedule 13G (passive). The holder is Vanguard Capital Management at 7.5% of the class (33,256,639 shares), filed 2026-04-29 for an event on 2026-03-31.
What did COST report last quarter?
In Q3 FY 2026 (quarter ended 2026-05-10) Costco Wholesale reported revenue of $70.53B, up 11.6% from the same quarter a year earlier, and net income of $2.19B (4.93 diluted EPS). In FY 2026 it generated $15.82B of operating cash flow and spent $848.0M on buybacks and $2.46B on dividends. As of 2026-08-30, cash was $20.21B against $3.91B of debt.
Which tracked 13F managers own COST?
7 of the 30 tracked 13F managers held COST shares at their latest filing, $6.83B in all. The largest: Ken Fisher's Fisher Asset Management (3.3M shares, $3.04B), Cliff Asness's AQR Capital Management (1.3M shares, $1.17B), Two Sigma Investments (1.0M shares, $941.3M), D. E. Shaw & Co. (873K shares, $817.0M), Ken Griffin's Citadel Advisors (510K shares, $476.8M), Izzy Englander's Millennium Management (381K shares, $356.2M). The table above lists all 7.
Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.