BLK · Financials

BlackRock, Inc

Q2 2026: held by 3 giants, composite weight 0.25%, consensus rank 83; this quarter 1 bought and 1 sold. Quarter-end price $961.56 (Jun 30, 2026).

Giants holding

previous quarter 3

Composite weight

0.25%

consensus rank 83

Quarter-end price

$961.56

Jun 30, 2026

Avg est. costest.

$745.57

vs quarter-end price +29%

Held by 3 Giants

Sorted by portfolio weight; click a name for that giant’s holding history.

How to Read This

Est. average cost: shares bought each quarter × (start + end price) ÷ 2, weighted; positions held before Q1 1999 (or the giant’s earliest electronic filing) start from that quarter’s price. 13F does not show actual trade prices.

Giant	Weight	Shares	Value	First bought	Quarters held	Est. avg cost	vs cost	This quarter
Mason Morfit	9.9%	581.7K	$559.3M	Q4 2025	3	$1,109est.	−13%	Added
William von Mueffling	3.0%	20.9K	$20.1M	Q4 2021	19	$779.26est.	+23%	Trimmed
Tom Gayner	1.6%	220.2K	$211.7M	Q2 2013	53	$348.94est.	+176%	Held

Cost Map: 2 of 3 Giants Have an Estimated Cost Below the Quarter-End Price

One row per giant: the dot is the estimated average cost (bigger = heavier weight); the gold line is the latest quarter-end price.

cost below price (paper gain)cost above price (paper loss)quarter-end price

III

Quarter-End Price (Split-Adjusted)

From Q2 2013, the first quarter a giant held it; hover for holders, buyers and sellers that quarter.

How to Read This

Prices are 13F quarter-end value ÷ shares, roughly the quarter’s closing price, not live prices; prices before splits are converted to today’s share count.

More Giants or Fewer

Giants Holding

Buyers and Sellers (Last 20 Quarters)

BoughtSold

Composite Weight (Hover for Rank)

Holding History

Open a giant: when the holding began, which quarters it changed, and how the estimated cost moved. The table lists quarters with trades plus the latest quarter.

How to Read This

In the chart, prices and cost are converted to today’s share count (split-adjusted); the table shows each quarter’s own figures. Est. trade price = (start + end price) ÷ 2, only a rough level.

Mason Morfit 9.9% · since Q4 2025

Giant page →

quarter-end pricerunning est. costest. trade price (buy / sell)

Quarter	Move	Change	Shares held	Weight	Start → end price	Est. trade price	Running est. cost
Q2 2026	Added	+35.6K	581.7K	9.9%	$961.71 → $961.56	$961.64	$1,109
Q1 2026	Trimmed	−148.9K	546.1K	9.2%	$1,070 → $961.71	$1,016	$1,118
Q4 2025	New	+695.0K	695.0K	10.6%	$1,166 → $1,070	$1,118	$1,118

William von Mueffling 3.0% · since Q4 2021

Giant page →

quarter-end pricerunning est. costest. trade price (buy / sell)

Quarter	Move	Change	Shares held	Weight	Start → end price	Est. trade price	Running est. cost
Q2 2026	Trimmed	−432.4K	20.9K	3.0%	$961.71 → $961.56	$961.64	$779.26
Q1 2026	Trimmed	−61.0K	453.3K	2.9%	$1,070 → $961.71	$1,016	$779.26
Q4 2025	Added	+3.9K	514.3K	3.0%	$1,166 → $1,070	$1,118	$779.26
Q3 2025	Trimmed	−5.6K	510.4K	3.3%	$1,049 → $1,166	$1,108	$776.70
Q2 2025	Added	+48.2K	516.0K	3.1%	$946.48 → $1,049	$997.87	$776.70
Q1 2025	Trimmed	−15.9K	467.9K	2.9%	$1,025 → $946.48	$985.79	$753.93
Q4 2024	Trimmed	−4.9K	483.8K	3.0%	$949.51 → $1,025	$987.31	$753.93
Q3 2024	Trimmed	−23.0K	488.7K	2.8%	$787.32 → $949.51	$868.42	$753.93
Q2 2024	Added	+32.8K	511.7K	2.7%	$833.70 → $787.32	$810.51	$753.93
Q1 2024	Trimmed	−10.2K	478.9K	2.5%	$811.80 → $833.70	$822.75	$750.06
Q4 2023	Trimmed	−12.6K	489.1K	2.7%	$646.49 → $811.80	$729.14	$750.06
Q2 2023	Added	+67.0K	499.4K	2.4%	$669.12 → $691.14	$680.13	$750.06
Q1 2023	Trimmed	−5.3K	432.4K	2.4%	$708.63 → $669.12	$688.87	$760.89
Q4 2022	Added	+12.0K	437.6K	2.6%	$550.28 → $708.63	$629.45	$760.89
Q3 2022	Added	+53.8K	425.7K	2.1%	$609.04 → $550.28	$579.66	$764.58
Q2 2022	Added	+142.6K	371.9K	1.9%	$764.17 → $609.04	$686.60	$791.34
Q1 2022	Added	+127.0K	229.3K	1.3%	$915.56 → $764.17	$839.86	$856.48
Q4 2021	New	+102.3K	102.3K	0.6%	$838.66 → $915.56	$877.11	$877.11

Tom Gayner 1.6% · since Q2 2013

Giant page →

quarter-end pricerunning est. costest. trade price (buy / sell)

Quarter	Move	Change	Shares held	Weight	Start → end price	Est. trade price	Running est. cost
Q2 2026	Held	—	220.2K	1.6%	$961.71 → $961.56	—	$348.94
Q3 2019	Added	+4.4K	217.2K	1.5%	$469.30 → $445.64	$457.47	$347.32
Q2 2019	Added	+6.1K	212.8K	1.5%	$427.37 → $469.30	$448.33	$345.05
Q1 2019	Added	+11.0K	206.7K	1.5%	$392.82 → $427.37	$410.09	$342.00
Q3 2018	Added	+3.6K	195.5K	1.6%	$499.04 → $471.33	$485.19	$338.17
Q2 2018	Added	+4.3K	191.9K	1.8%	$541.72 → $499.04	$520.38	$335.41
Q1 2018	Added	+7.6K	187.6K	1.9%	$513.71 → $541.72	$527.71	$331.17
Q3 2017	Added	+5.0K	180.0K	1.6%	$422.41 → $447.09	$434.75	$322.87
Q2 2017	Added	+6.5K	175.0K	1.6%	$383.51 → $422.41	$402.96	$319.68
Q1 2017	Added	+7.0K	168.5K	1.5%	$380.54 → $383.51	$382.02	$316.46
Q4 2016	Added	+6.0K	161.5K	1.5%	$362.46 → $380.54	$371.50	$313.62
Q3 2016	Added	+1.0K	155.5K	1.5%	$342.53 → $362.46	$352.49	$311.39
Q2 2016	Added	+2.5K	154.5K	1.4%	$340.57 → $342.53	$341.55	$311.12
Q3 2015	Added	+12.0K	152.0K	1.2%	$345.98 → $297.47	$321.72	$310.62
Q2 2015	Added	+11.0K	140.0K	1.2%	$365.84 → $345.98	$355.91	$309.67
Q1 2015	Added	+13.0K	129.0K	1.2%	$357.56 → $365.84	$361.70	$305.73
Q4 2014	Added	+13.0K	116.0K	1.1%	$328.32 → $357.56	$342.94	$299.46
Q3 2014	Added	+14.0K	103.0K	1.0%	$319.60 → $328.32	$323.96	$293.97
Q2 2014	Added	+15.0K	89.0K	0.8%	$314.49 → $319.60	$317.04	$289.25
Q1 2014	Added	+14.6K	74.0K	0.7%	$316.47 → $314.49	$315.48	$283.62
Q4 2013	Added	+26.1K	59.4K	0.6%	$270.63 → $316.47	$293.55	$275.79
Q3 2013	Added	+24.2K	33.3K	0.3%	$256.86 → $270.63	$263.74	$261.86
Q2 2013	New	+9.1K	9.1K	0.1%	$256.88 → $256.86	$256.87	$256.87

Giants Who Sold Out in the Last 8 Quarters

Ruane, Cunniff & GoldfarbQ4 2025