BlackRock Portfolio Management LLC insider trades
BlackRock Portfolio Management LLC has filed 38 Form 4s with the SEC that we hold, for Clearway Energy, Inc. (CWEN) (10% owner), York Space Systems Inc. (YSS) (10% owner), Hess Midstream LP (HESM) (10% owner) and Mediaco Holding Inc. (MDIA) (10% owner). Across all of them we count 1 purchase worth $25.6M and 17 sales worth $1.1B reported on Form 4. In the last 12 months: 1 purchase ($25.6M) and 13 sales ($27.1M). The largest single trade was a sale of 15,022,517 shares of Hess Midstream LP worth $553.7M, dated 2025-05-30. The first filing on our record is dated 2025-02-13 and the latest 2026-10-05.
Clearway Energy, Inc. (CWEN)
No purchase or sale of common stock reported here; these filings cover grants, option exercises or other codes.
York Space Systems Inc. (YSS)
| Trade date | Code | Shares | Value as filed | Filed |
|---|---|---|---|---|
| 2026-01-30 | P, purchase reported on Form 4 | 752,500 | $25.6M | 2026-02-03 |
| 2026-07-29 | S, sale reported on Form 4 | 63,390 | $970.5K | 2026-07-31 |
| 2026-07-30 | S, sale reported on Form 4 | 140,823 | $2.1M | 2026-07-31 |
| 2026-07-31 | S, sale reported on Form 4 | 35,574 | $538.6K | 2026-08-04 |
| 2026-08-03 | S, sale reported on Form 4 | 13,754 | $206.7K | 2026-08-04 |
| 2026-08-04 | S, sale reported on Form 4 | 77,743 | $1.2M | 2026-08-06 |
| 2026-08-04 | S, sale reported on Form 4 | 456,310 | $7.1M | 2026-08-06 |
| 2026-08-04 | S, sale reported on Form 4 | 78,082 | $1.2M | 2026-08-10 |
| 2026-08-04 | S, sale reported on Form 4 | 468,476 | $7.3M | 2026-08-10 |
| 2026-08-05 | S, sale reported on Form 4 | 11,784 | $180.1K | 2026-08-06 |
| 2026-08-05 | S, sale reported on Form 4 | 116,162 | $1.6M | 2026-08-10 |
| 2026-08-05 | S, sale reported on Form 4 | 11,884 | $181.6K | 2026-08-10 |
| 2026-08-06 | S, sale reported on Form 4 | 201,504 | $2.3M | 2026-08-10 |
| 2026-08-07 | S, sale reported on Form 4 | 200,170 | $2.2M | 2026-08-10 |
Hess Midstream LP (HESM)
| Trade date | Code | Shares | Value as filed | Filed |
|---|---|---|---|---|
| 2025-02-12 | S, sale reported on Form 4 | 11,000,000 | $430.2M | 2025-02-13 |
| 2025-02-19 | S, sale reported on Form 4 | 1,650,000 | $64.5M | 2025-02-19 |
| 2025-05-30 | S, sale reported on Form 4 | 15,022,517 | $553.7M | 2025-05-30 |
Mediaco Holding Inc. (MDIA)
| Trade date | Code | Shares | Value as filed | Filed |
|---|---|---|---|---|
| 2025-09-05 | S, sale reported on Form 4 | 214 | $282 | 2025-09-08 |
Counted from the Form 4 filings this reporting owner (SEC CIK 2052113) 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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