| Politician | Action | Description | Traded |
|---|---|---|---|
| Buy | COSTCO WHOLESALE CORPORATION | Jun 2, 2026 | |
| Sell | COSTCO WHOLESALE CORP CMN | May 15, 2026 | |
| Buy | COSTCO GROUP, INC CMN | Apr 1, 2026 | |
| Buy | COSTCO WHOLESALE CORP QC SPO | Feb 13, 2026 | |
| Buy | Costco Wholesale Corporation | Jan 30, 2026 | |
| Buy | COSTCO WHSCALE CMN | Jan 29, 2026 | |
| Buy | COSTCO WHOLESALE CORP CMN | Jan 29, 2026 | |
| Buy | COSTCO WHOLESALE CORP CMN | Jan 13, 2026 | |
| Buy | Costco Wholesale Corporation | Dec 29, 2025 | |
| Sell | Costco Wholesale Corporation | Dec 24, 2025 |
This page tracks congressional stock trading activity in Costco Wholesale Corporation (COST) in the Consumer Defensive sector. Disclosed Capitol has indexed 350 disclosed congressional trades involving COST. Every trade is sourced from official STOCK Act financial disclosure filings — the same primary records the Senate and House are required to publish. The full trade list with politician names, transaction types, amount ranges, and disclosure dates is below, alongside cross-references to any related lobbying activity, federal contracts, and committee assignments.
As of July 2026 — Disclosed Capitol has tracked 350 disclosed congressional trades in Costco Wholesale Corporation (COST) — 146:107 sell-heavy ratio — led by Ro Khanna (D).
| Date | Politician | Party | Action | Amount |
|---|---|---|---|---|
| 2026-06-02 | Ro Khanna | D | Buy | $1,001 - $15,000 |
| 2026-05-15 | Ro Khanna | D | Sell | $1,001 - $15,000 |
| 2026-04-01 | Ro Khanna | D | Buy | $1,001 - $15,000 |
| 2026-02-13 | Ro Khanna | D | Buy | $1,001 - $15,000 |
| 2026-01-30 | Gilbert Cisneros | D | Buy | $1,001 - $15,000 |
| 2026-01-29 | Ro Khanna | D | Purchase | $1,001 - $15,000 |
| 2026-01-29 | Ro Khanna | D | Purchase | $1,001 - $15,000 |
| 2026-01-13 | Ro Khanna | D | Purchase | $1,001 - $15,000 |
| 2025-12-29 | Markwayne Mullin | R | Buy | $15,001 - $50,000 |
| 2025-12-24 | Gilbert Cisneros | D | Sale | $1,001 - $15,000 |
Across the 350 disclosed congressional trades in Costco Wholesale Corporation (COST), members of Congress have reported 107 buys and 146 sells. The average 30-day alpha vs. the S&P 500 is -0.10%.