James Hamilton E insider trades
James Hamilton E has filed 7 Form 4s with the SEC that we hold, for Costco Wholesale Corp /NEW (COST) (Director) and Blackstone Inc. (BX) (Executive Vice Chairman, Director). Across all of them we count 3 purchases worth $0 and 10 sales worth $1.2B reported on Form 4. None of these purchases or sales is dated in the last 12 months. The largest single trade was a sale of 2,140,934 shares of Blackstone Inc. worth $287.8M, dated 2021-12-07. The first filing on our record is dated 2021-10-26 and the latest 2025-10-24.
Costco Wholesale Corp /NEW (COST)
| Trade date | Code | Shares | Value as filed | Filed |
|---|---|---|---|---|
| 2018-09-27 | P, purchase reported on Form 4 | 416 | - | 2023-10-18 |
| 2018-09-27 | P, purchase reported on Form 4 | 413 | - | 2023-10-18 |
| 2018-12-28 | S, sale reported on Form 4 | 186 | - | 2023-10-18 |
| 2018-12-28 | S, sale reported on Form 4 | 183 | - | 2023-10-18 |
| 2022-01-07 | P, purchase reported on Form 4 | 461 | - | 2023-10-18 |
Blackstone Inc. (BX)
| Trade date | Code | Shares | Value as filed | Filed |
|---|---|---|---|---|
| 2021-12-07 | S, sale reported on Form 4 | 930,246 | $125.1M | 2021-12-07 |
| 2021-12-07 | S, sale reported on Form 4 | 8,474 | $1.1M | 2021-12-07 |
| 2021-12-07 | S, sale reported on Form 4 | 12,023 | $1.6M | 2021-12-07 |
| 2021-12-07 | S, sale reported on Form 4 | 1,271,068 | $170.9M | 2021-12-07 |
| 2021-12-07 | S, sale reported on Form 4 | 1,319,754 | $177.4M | 2021-12-07 |
| 2021-12-07 | S, sale reported on Form 4 | 1,509,066 | $202.9M | 2021-12-07 |
| 2021-12-07 | S, sale reported on Form 4 | 2,140,934 | $287.8M | 2021-12-07 |
| 2021-12-07 | S, sale reported on Form 4 | 1,803,281 | $242.5M | 2021-12-07 |
Counted from the Form 4 filings this reporting owner (SEC CIK 1238989) filed on EDGAR. Values are the transaction values as filed. See every filing on EDGAR, or browse insider buying and today's insider purchases.
Source: U.S. Securities and Exchange Commission (EDGAR) and other official
government data · Updated 2026-10-12 ·
For informational purposes only, not investment advice.
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