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BlackRock Portfolio Management LLC

CIK 2052113 · last filed 2026-08-11

BlackRock Portfolio Management LLC is a corporate insider who has filed 56 SEC Form 4 insider transactions across 5 companies since 2025. The most recent filing, for CWEN, was dated Aug 11, 2026. Across all open-market trades the lifetime net is −$1.06B, making them a net seller over the disclosed history. Current disclosed insider exposure totals $191.8M across reported positions.

"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.

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Disclosed Exposure

$191.82M

Companies

5

Total Filings

56

Lifetime Open-Market Net

-$1.06B

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
Symbol Role Shares Price Disclosed Exposure Lifetime OM Net Filings Latest Filed
CWEN 10%+ Owner 78,938 $31.52 $2.49M $0 5 2026-08-11
YSS 10%+ Owner 16,930,673 $8.82 $149.33M -$13.07M 7 2026-08-10
Clearway Energy, Inc. (CWEN.A) Delisted 10%+ Owner 75,591 $40.43 $3.06M $0 39 2026-05-01
MDIA 10%+ Owner 35,257,690 $1.13 $40.00M -$282 1 2025-09-08
HESM 10%+ Owner 0 $40.23 $0 -$1.05B 4 2025-05-30

Recent Filings

56 filings
Insider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
Filed Symbol Action Net Shares Net $ Link
2026-08-11 CWEN Other (J) +1,646 $0 EDGAR
2026-08-10 YSS Sell (S) −674,604 -$10.22M EDGAR
2026-08-10 YSS Sell (S) −401,674 -$4.54M EDGAR
2026-08-06 YSS Sell (S) −661,999 -$10.02M EDGAR
2026-08-06 YSS Sell (S) −661,999 -$10.02M EDGAR
2026-08-04 CWEN Other (J) +217 $0 EDGAR
2026-08-04 YSS Sell (S) −49,328 -$745.3K EDGAR
2026-07-31 YSS Sell (S) −204,213 -$3.11M EDGAR
2026-07-13 CWEN Other (J) +101 $0 EDGAR
2026-06-23 CWEN Other (J) +945 $0 EDGAR
Showing 1–10 of 56
Page 1 of 6
Form 4 codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.