COST insider buying and SEC filings
COSTCO WHOLESALE CORP /NEW · Nasdaq · Retail-Variety Stores
COST insider transactions
Officers, directors and 10% owners must tell the SEC when they buy or sell COSTCO WHOLESALE CORP /NEW stock, within two business days. These are the most recent, straight from EDGAR.
SEC's current record for COSTCO WHOLESALE CORP /NEW holds 1004 filings, of which 611 are insider filings. They span 2016-09-29 to 2026-07-14. Form 3, 4, 5 appear in it.
| Form | Filed | Insider | Transaction | |
|---|---|---|---|---|
| 4 | 2026-07-14 | RAIKES JEFFREY S — Director | Gift · 5,249 shares | Filing |
| 4 | 2026-06-25 | DENMAN KENNETH D — Director | Open-market sale · 885 shares | Filing |
| 4 | 2026-04-01 | Caton Frates — Executive Vice President | Open-market sale · 700 shares | Filing |
| 4 | 2026-03-13 | George Sarah Catherine — Executive Vice President | Discretionary transaction in a benefit plan · 642 shares | Filing |
| 4 | 2026-03-13 | GARY MILLERCHIP — Executive Vice President | Shares withheld for tax or exercise cost · 1,154 shares | Filing |
| 3 | 2026-03-11 | George Sarah Catherine — Executive Vice President | Initial statement of holdings | Filing |
| 4 | 2026-03-11 | Claudine Adamo — Executive Vice President | Open-market sale · 730 shares | Filing |
| 4 | 2026-01-28 | RAIKES JEFFREY S — Director | Gift · 5,115 shares | Filing |
Transaction wording follows the code on the filing itself. An option exercise or a tax withholding is not a market decision, and is not shown as one.
- Form 3 — Someone became an insider and declared their holdings
- Form 4 — An insider bought or sold company stock
Other recent COSTCO WHOLESALE CORP /NEW filings
| Form | Filed | Document |
|---|---|---|
| 8-K | 2026-07-08 | 8-K |
| 10-Q | 2026-06-03 | 10-Q |
| 8-K | 2026-05-28 | 8-K |
| 8-K | 2026-04-15 | 8-K |
| 10-Q | 2026-03-11 | 10-Q |
| 8-K | 2026-03-05 | 8-K |
| 8-K | 2026-01-21 | 8-K |
| 10-Q | 2025-12-17 | 10-Q |
Reading these accurately
A Form 4 records what happened, precisely and on the record — it has no field for why. A sale can be scheduled months in advance under a Rule 10b5-1 plan, and vesting and option exercises appear alongside open-market decisions. The fuller version is in what insider buying and selling actually signals; to look up any other company, use the insider filing tracker.
Keeping up with COSTCO WHOLESALE CORP /NEW
Filings arrive on COSTCO WHOLESALE CORP /NEW's schedule rather than yours, usually while you are working. Pip watches the companies you already own and sends one plain-English briefing each market morning — what was filed, what was reported, and the document attached so you can check it yourself.