BlackRock Portfolio Management LLC — SEC Form 4 filings
SEC reporting owner CIK 2052113. 36 Form 4 filings on record with FilingPulse; latest filed 2026-08-11.
Transaction summary — filings shown
Covers all 36 filings on record, filed 2025-02-13 to 2026-08-11. Counts and totals are arithmetic on values as filed — descriptive data, not a recommendation.
- Open-market purchases (code P, non-derivative): 1 leg across 1 filing — 752,500 shares, $25,585,000 total (shares × price as filed).
- Open-market sales (code S, non-derivative): 18 legs across 9 filings — 29,664,549 shares, $1,077,106,936 total (shares × price as filed).
- Other reported legs (grants, option exercises, tax withholding, gifts, derivative-security transactions, …): 50.
- Largest priced transaction: sale of 15,022,517 shares @ $36.86 ($553,729,977) in Hess Midstream LP, filed 2025-05-30.
By issuer — same filings
Open-market purchase/sale legs on non-derivative securities, grouped by issuer. Role is as filed on the newest filing for that issuer. Dollar totals cover priced legs only (shares × price as filed). Ordered by priced transaction value, largest first.
| Issuer | Role (as filed) | Filings | Purchases (P) | Sales (S) | Other legs |
|---|---|---|---|---|---|
| Hess Midstream LP (HESM) | 10% owner | 4 | — | 3 legs · 27,672,517 sh · $1,048,471,477 | 11 |
| York Space Systems Inc. (YSS) | 10% owner | 6 | 1 leg · 752,500 sh · $25,585,000 | 14 legs · 1,991,818 sh · $28,635,177 | — |
| Mediaco Holding Inc. (MDIA) | 10% owner | 1 | — | 1 leg · 214 sh · $282 | 2 |
| Clearway Energy, Inc. (CWEN) | 10% owner | 25 | — | — | 37 |
Form 4 filings — BlackRock Portfolio Management LLC
| Filed | Form | Issuer | Reported transactions | Source |
|---|---|---|---|---|
| 2026-08-11 | 4 | Clearway Energy, Inc. (CWEN) | Other (J): 1,646 | EDGAR |
| 2026-08-10 | 4/A | York Space Systems Inc. (YSS) | Sale (S): 78,082 @ $15.02 · Sale (S): 468,476 @ $15.58 · Sale (S): 116,162 @ $13.49 · Sale (S): 11,884 @ $15.28 | EDGAR |
| 2026-08-10 | 4 | York Space Systems Inc. (YSS) | Sale (S): 201,504 @ $11.60 · Sale (S): 200,170 @ $10.99 | EDGAR |
| 2026-08-06 | 4 | York Space Systems Inc. (YSS) | Sale (S): 77,743 @ $15.02 · Sale (S): 456,310 @ $15.58 · Sale (S): 116,162 @ $13.49 · Sale (S): 11,784 @ $15.28 | EDGAR |
| 2026-08-04 | 4 | York Space Systems Inc. (YSS) | Sale (S): 35,574 @ $15.14 · Sale (S): 13,754 @ $15.03 | EDGAR |
| 2026-08-04 | 4 | Clearway Energy, Inc. (CWEN) | Other (J): 217 | EDGAR |
| 2026-07-31 | 4 | York Space Systems Inc. (YSS) | Sale (S): 63,390 @ $15.31 · Sale (S): 140,823 @ $15.18 | EDGAR |
| 2026-07-13 | 4 | Clearway Energy, Inc. (CWEN) | Other (J): 101 | EDGAR |
| 2026-06-23 | 4 | Clearway Energy, Inc. (CWEN) | Other (J): 945 | EDGAR |
| 2026-06-16 | 4 | Clearway Energy, Inc. (CWEN) | Other (J): 438 | EDGAR |
| 2026-05-01 | 4 | Clearway Energy, Inc. (CWEN) | Other (J): 21,841 · Other (J): 21,841 · Other (J): 6,461 | EDGAR |
| 2026-04-02 | 4 | Clearway Energy, Inc. (CWEN) | Conversion (C): 215,000 · Other (J): 99,661 @ $39.91 · Other (J): 435,552 @ $39.91 · Conversion (C): 215,000 (derivative) @ $0 · Other (J): 42,738,750 (derivative) · Other (J): 42,738,750 (derivative) | EDGAR |
| 2026-03-30 | 4 | Clearway Energy, Inc. (CWEN) | Other (J): 1,091 | EDGAR |
| 2026-03-17 | 4 | Clearway Energy, Inc. (CWEN) | Other (J): 493 | EDGAR |
| 2026-02-25 | 4 | Clearway Energy, Inc. (CWEN) | Other (J): 129 @ $39.61 · Other (J): 875 | EDGAR |
| 2026-02-03 | 4 | Yellowstone Midco Holdings II, LLC (YSS) | Purchase (P): 752,500 @ $34 | EDGAR |
| 2025-12-16 | 4 | Clearway Energy, Inc. (CWEN) | Other (J): 1,737 | EDGAR |
| 2025-10-30 | 4 | Clearway Energy, Inc. (CWEN) | Other (J): 657 | EDGAR |
| 2025-10-03 | 4 | Clearway Energy, Inc. (CWEN) | Other (J): 63,475 @ $29.84 | EDGAR |
| 2025-09-08 | 4 | Mediaco Holding Inc. (MDIA) | Option exercise/expiry (X): 28,206,152 · Sale (S): 214 @ $1.32 · Option exercise/expiry (X): 28,206,152 (derivative) @ $0 | EDGAR |
| 2025-08-19 | 4 | Clearway Energy, Inc. (CWEN) | Other (J): 4,368 | EDGAR |
| 2025-08-05 | 4 | Clearway Energy, Inc. (CWEN) | Other (J): 821 | EDGAR |
| 2025-07-03 | 4 | Clearway Energy, Inc. (CWEN) | Other (J): 213 | EDGAR |
| 2025-05-30 | 4 | Hess Midstream LP (HESM) | Other (J): 14,573,517 @ $0 · Conversion (C): 14,573,517 @ $0 · Sale (S): 15,022,517 @ $36.86 · Conversion (C): 14,573,517 (derivative) @ $36.86 | EDGAR |
| 2025-05-23 | 4/A | Clearway Energy, Inc. (CWEN) | Other (J): 567,594 @ $30.47 | EDGAR |
| 2025-05-14 | 4 | Clearway Energy, Inc. (CWEN) | Other (J): 821 | EDGAR |
| 2025-05-12 | 4 | Hess Midstream LP (HESM) | Other (J): 3,112,886 @ $0 · Disposition to issuer (D): 3,112,886 (derivative) @ $36.88 | EDGAR |
| 2025-05-06 | 4 | Clearway Energy, Inc. (CWEN) | Other (J): 18,210 | EDGAR |
| 2025-04-29 | 4 | Clearway Energy, Inc. (CWEN) | Other (J): 4,226 | EDGAR |
| 2025-04-22 | 4 | Clearway Energy, Inc. (CWEN) | Other (J): 11,886 | EDGAR |
| 2025-04-17 | 4 | Clearway Energy, Inc. (CWEN) | Other (J): 95 @ $29.07 | EDGAR |
| 2025-04-08 | 4 | Clearway Energy, Inc. (CWEN) | Other (J): 578 | EDGAR |
| 2025-04-02 | 4 | Clearway Energy, Inc. (CWEN) | Conversion (C): 385,608 · Other (J): 124,151 @ $30.47 · Other (J): 550,283 @ $30.47 · Conversion (C): 385,608 (derivative) @ $0 | EDGAR |
| 2025-02-19 | 4 | Clearway Energy, Inc. (CWEN) | Other (J): 958 · Other (J): 1,183 @ $26.13 | EDGAR |
| 2025-02-19 | 4 | Hess Midstream LP (HESM) | Other (J): 1,650,000 @ $0 · Conversion (C): 1,650,000 @ $0 · Sale (S): 1,650,000 @ $39.11 · Conversion (C): 1,650,000 (derivative) @ $0 | EDGAR |
| 2025-02-13 | 4 | Hess Midstream LP (HESM) | Other (J): 11,000,000 @ $0 · Conversion (C): 11,000,000 @ $0 · Sale (S): 11,000,000 @ $39.11 · Conversion (C): 11,000,000 (derivative) @ $0 | EDGAR |
FilingPulse's Form 4 archive currently extends back to 2024-01-11 and is expanding backward through EDGAR history — earlier filings by this insider may not be indexed yet. Names and roles are shown as filed.
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