Costco Wholesale (COST) insider buying
16 open-market purchases of COST by Costco Wholesale's executives and directors since October 2025, worth $0 in total, from SEC Form 4 filings.
The most recent: Ro Khanna bought — on February 24, 2026.
The biggest buyer over the period is Ro Khanna: 8 purchases, $0.
By year
| Year | Purchases | Value |
|---|---|---|
| 2026 | 6 | $0 |
| 2025 | 10 | $0 |
Biggest buyers
| Insider | Buys | Value |
|---|---|---|
| Ro Khanna | 8 | $0 |
| Gilbert Ray Cisneros, Jr. | 4 | $0 |
| Markwayne Mullin | 2 | $0 |
| Richard Mccormick | 2 | $0 |
Every purchase
Newest first. From SEC Form 4 filings. Insider buying across the market.
| Date | Insider | Shares | Price | Value | Filing |
|---|---|---|---|---|---|
| Feb 24, 2026 | Ro Khanna |
0 | $998.12 | — | — |
| Feb 24, 2026 | Ro Khanna |
0 | $998.12 | — | — |
| Jan 30, 2026 | Gilbert Ray Cisneros, Jr. |
0 | $940.25 | — | — |
| Jan 30, 2026 | Gilbert Ray Cisneros, Jr. |
0 | $940.25 | — | — |
| Jan 6, 2026 | Ro Khanna |
0 | $889.10 | — | — |
| Jan 6, 2026 | Ro Khanna |
0 | $889.10 | — | — |
| Dec 29, 2025 | Markwayne Mullin |
0 | $867.84 | — | — |
| Dec 29, 2025 | Markwayne Mullin |
0 | $867.84 | — | — |
| Nov 10, 2025 | Ro Khanna |
0 | $915.56 | — | — |
| Nov 10, 2025 | Ro Khanna |
0 | $915.56 | — | — |
| Nov 5, 2025 | Richard Mccormick |
0 | $935.03 | — | — |
| Nov 5, 2025 | Richard Mccormick |
0 | $935.03 | — | — |
| Nov 3, 2025 | Ro Khanna |
0 | $928.04 | — | — |
| Nov 3, 2025 | Ro Khanna |
0 | $928.04 | — | — |
| Oct 17, 2025 | Gilbert Ray Cisneros, Jr. |
0 | $936.33 | — | — |
| Oct 17, 2025 | Gilbert Ray Cisneros, Jr. |
0 | $936.33 | — | — |
Questions
Are Costco Wholesale insiders buying the stock?
16 open-market purchases of COST by Costco Wholesale's executives and directors since October 2025, worth $0 in total, from SEC Form 4 filings. The most recent: Ro Khanna bought — on February 24, 2026.
What counts as insider buying here?
Open-market purchases (Form 4 code P) by officers and directors. Option exercises, grants and purchases by 10% owners are left out.
From Costco Wholesale's annual reports filed with the SEC (XBRL data), standardised by Investingly. Information only, not investment advice.