Question 1

How many shares of BLK does WELLINGTON MANAGEMENT GROUP LLP own?

Accepted Answer

As of 2026-Q1, WELLINGTON MANAGEMENT GROUP LLP holds 3.6M shares of BLK (BLACKROCK INC).

Question 2

What is WELLINGTON MANAGEMENT GROUP LLP's BLK position worth?

Accepted Answer

As of 2026-Q1, WELLINGTON MANAGEMENT GROUP LLP's BLK position is worth $3.5B.

Question 3

Is WELLINGTON MANAGEMENT GROUP LLP buying or selling BLK?

Accepted Answer

In 2026-Q1, WELLINGTON MANAGEMENT GROUP LLP increased their BLK position (+151.2% change in shares).

Question 4

When did WELLINGTON MANAGEMENT GROUP LLP first buy BLK?

Accepted Answer

Based on available 13F filings, WELLINGTON MANAGEMENT GROUP LLP first reported a position in BLK in 2024-Q4. They have held the position across 6 quarters.

Quarter	Action	Shares	Change	Value	Weight	Price	Conviction
2026-Q1 Latest	Increased	3.6M	+151.2%	$3.5B	0.7%	$1,052.59	73
2025-Q4	Increased	1.5M	+200.5%	$1.6B	0.3%	$1,083.31	62
2025-Q3	Decreased	482,877	-2.3%	$563M	0.1%	$1,169.87	0
2025-Q2	Increased	494,275	+57.2%	$518.6M	0.1%	$1,037.84	45
2025-Q1	Decreased	314,397	-8.2%	$297.6M	0.1%	$932.75	0
2024-Q4	New	342,616	-	$351.2M	0.1%	$1,006.79	43

BLK6 quarters

BLK
6 quarters