Ticker · CUSIP 09290D101

BLK

BLACKROCK INC

Financial Services·Asset Management

···Share

Holders (tracked)

Combined shares

9,330,805

Combined value

$9.99B

Last close

$1052.14

Quarter

2025Q4

Price is -1.7% vs the avg quarter-end implied price across tracked holders.

Price · 1Y$1052+194.04 (+22.61%)H $1190 · L $836.76 · Avg Vol 681K

Congress buyCongress sellPosition opened

Tracked holders · last 8 quarters

+6 vs previous quarter over the last 5.

SEC event timeline

30 events

Paul Tudor Jones (Tudor Investment) opened position2026-02-17
+51,897 shares · 2025Q4
Position
Wellington Management added2026-02-17
+968,245 shares · 2025Q4
Position
Ron Baron (Baron Capital / BAMCO) trimmed2026-02-17
−48 shares · 2025Q4
Position
Ken Griffin (Citadel Advisors) added2026-02-17
+249,545 shares · 2025Q4
Position
D.E. Shaw & Co. opened position2026-02-17
+70,258 shares · 2025Q4
Position
ValueAct Holdings opened position2026-02-17
+695,000 shares · 2025Q4
Position
Andreas Halvorsen (Viking Global) exited2026-02-17
−619,492 shares · 2025Q4
Position
Two Sigma Investments added2026-02-17
+16,500 shares · 2025Q4
Position
Izzy Englander (Millennium Mgmt) added2026-02-17
+154,198 shares · 2025Q4
Position
AQR Capital Management added2026-02-17
+31,283 shares · 2025Q4
Position
Steve Cohen (Point72) opened position2026-02-17
+168,495 shares · 2025Q4
Position
T. Rowe Price added2026-02-17
+4,514 shares · 2025Q4
Position
Bill Nygren (Harris / Oakmark) trimmed2026-02-17
−12,289 shares · 2025Q4
Position
Ray Dalio (Bridgewater Associates) added2026-02-13
+1,305 shares · 2025Q4
Position
Ruane, Cunniff & Goldfarb (Sequoia) exited2026-02-13
−186 shares · 2025Q4
Position
Dodge & Cox added2026-02-13
+56 shares · 2025Q4
Position
Renaissance Technologies opened position2026-02-12
+3,846 shares · 2025Q4
Position
Norges Bank (Norway SWF) opened position2026-02-10
+2,562,438 shares · 2025Q4
Position
Ken Fisher (Fisher Asset Mgmt) trimmed2026-02-09
−77,808 shares · 2025Q4
Position
Mario Gabelli (GAMCO) trimmed2026-02-05
−87 shares · 2025Q4
Position
D.E. Shaw & Co. exited2025-11-14
−6,414 shares · 2025Q3
Position
Andreas Halvorsen (Viking Global) added2025-11-14
+424,388 shares · 2025Q3
Position
AQR Capital Management added2025-11-14
+10,499 shares · 2025Q3
Position
Izzy Englander (Millennium Mgmt) added2025-11-14
+328,767 shares · 2025Q3
Position
Ruane, Cunniff & Goldfarb (Sequoia) opened position2025-11-14
+186 shares · 2025Q3
Position
Two Sigma Investments trimmed2025-11-14
−52,463 shares · 2025Q3
Position
T. Rowe Price added2025-11-14
+2,445 shares · 2025Q3
Position
Wellington Management trimmed2025-11-14
−11,398 shares · 2025Q3
Position
Bill Nygren (Harris / Oakmark) trimmed2025-11-14
−194,018 shares · 2025Q3
Position
Jeremy Grantham (GMO) trimmed2025-11-13
−68 shares · 2025Q3
Position

Insider activity

No insider transactions in the last 30 days.

View full insider history for BLK →

Follow-the-investor returns

If you'd copied each holder of BLK…

Cost basis inferred from each manager's quarter-over-quarter position changes. Sorted by % return on the position they're still holding.

Investor	First in	Cost basis	Return	Position value today
Jeremy Grantham (GMO)	2024Q4	$1016.56	+3.5%	$1.3M
T. Rowe Price	2024Q4	$1023.60	+2.8%	$557.3M
Mario Gabelli (GAMCO)	2024Q4	$1025.11	+2.6%	$4.9M
Ron Baron (Baron Capital / BAMCO)	2024Q4	$1025.11	+2.6%	$1.1M
Tom Gayner (Markel Group)	2024Q4	$1025.11	+2.6%	$231.7M
Ken Fisher (Fisher Asset Mgmt)	2024Q4	$1025.11	+2.6%	$1.92B
Bill Nygren (Harris / Oakmark)	2024Q4	$1027.58	+2.4%	$57.2M
Norges Bank (Norway SWF)	2024Q4	$1027.95	+2.4%	$2.70B
Dodge & Cox	2024Q4	$1028.67	+2.3%	$748K
Wellington Management	2025Q1	$1041.57	+1.0%	$1.53B
AQR Capital Management	2024Q4	$1048.43	+0.4%	$93.2M
Ken Griffin (Citadel Advisors)	2024Q4	$1052.56	-0.0%	$424.9M
Ken Griffin (Citadel Advisors)	2024Q4	$1052.56	-0.0%	$424.9M
Ken Griffin (Citadel Advisors)	2024Q4	$1052.56	-0.0%	$424.9M
Two Sigma Investments	2024Q4	$1056.89	-0.4%	$46.3M
Paul Tudor Jones (Tudor Investment)	2024Q4	$1062.06	-0.9%	$5.7M
Paul Tudor Jones (Tudor Investment)	2024Q4	$1062.06	-0.9%	$5.7M
Paul Tudor Jones (Tudor Investment)	2024Q4	$1062.06	-0.9%	$5.7M
ValueAct Holdings	2025Q4	$1070.34	-1.7%	$731.2M
Renaissance Technologies	2025Q4	$1070.62	-1.7%	$4.0M
Steve Cohen (Point72)	2024Q4	$1072.00	-1.9%	$177.3M
Steve Cohen (Point72)	2024Q4	$1072.00	-1.9%	$177.3M
Steve Cohen (Point72)	2024Q4	$1072.00	-1.9%	$177.3M
Izzy Englander (Millennium Mgmt)	2024Q4	$1078.01	-2.4%	$118.7M
Izzy Englander (Millennium Mgmt)	2024Q4	$1078.01	-2.4%	$118.7M
Izzy Englander (Millennium Mgmt)	2024Q4	$1078.01	-2.4%	$118.7M
D.E. Shaw & Co.	2024Q4	$1088.54	-3.3%	$19.6M
D.E. Shaw & Co.	2024Q4	$1088.54	-3.3%	$19.6M
Ray Dalio (Bridgewater Associates)	2025Q3	$1138.66	-7.6%	$4.8M

Who moved on this name in 2025Q4

Position changes reported for the latest quarter, grouped by direction.

New positions6

Norges Bank (Norway SWF)
+2,562,438
$2.74B
ValueAct Holdings
+695,000
$743.9M
Steve Cohen (Point72)
+168,495
$180.3M
D.E. Shaw & Co.
+70,258
$75.2M
Paul Tudor Jones (Tudor Investment)
+51,897
$55.5M
Renaissance Technologies
+3,846
$4.1M

Added to8

Wellington Management
+968,245
$1.04B
Ken Griffin (Citadel Advisors)
+249,545
$267.1M
Izzy Englander (Millennium Mgmt)
+154,198
$165.0M
AQR Capital Management
+31,283
$33.5M
Two Sigma Investments
+16,500
$17.7M
Ray Dalio (Bridgewater Associates)
+1,305
$1.4M
Dodge & Cox
+56
$60K
T. Rowe Price
+4,514
$5K

Trimmed4

Ken Fisher (Fisher Asset Mgmt)
−77,808
$83.3M
Bill Nygren (Harris / Oakmark)
−12,289
$13.2M
Mario Gabelli (GAMCO)
−87
$93K
Ron Baron (Baron Capital / BAMCO)
−48
$51K

Exited2

Andreas Halvorsen (Viking Global)
−619,492
$722.2M
Ruane, Cunniff & Goldfarb (Sequoia)
−186
$217K

Institutional ownership over time

Distinct super-investors holding this ticker · combined dollar value, by quarter.

Quarter	Holders	Shares	Combined value	Δ holders
2024Q4	23	5,978,724	$6.13B	—
2025Q1	25	4,210,232	$3.98B	+2
2025Q2	26	6,763,306	$7.10B	+1
2025Q3	23	4,813,635	$5.61B	-3
2025Q4	29	9,330,805	$9.99B	+6

Congress members trading this stock

Date	Member	Type	Amount range	Filing
2026-03-19	Richard Dean Dr McCormick	Buy	$1K – $15K	PDF ↗
2025-11-05	Richard Dean Dr McCormick	Buy	$1K – $15K	PDF ↗
2025-10-14	Lisa McClain	Sell	$1K – $15K	PDF ↗
2025-09-23	Valerie Hoyle	Sell	$1K – $15K	PDF ↗
2025-09-18	Richard Dean Dr McCormick	Sell (P)	$1K – $15K	PDF ↗
2025-08-18	Dan Newhouse	Sell (P)	$1K – $15K	PDF ↗
2025-08-11	Julie Johnson	Sell	$1K – $15K	PDF ↗
2025-07-22	Julie Johnson	Sell (P)	$1K – $15K	PDF ↗
2025-07-16	Lisa McClain	Buy	$1K – $15K	PDF ↗
2025-07-11	Ritchie John Torres	Sell	$1K – $15K	PDF ↗
2025-04-11	Dan Newhouse	Sell (P)	$1K – $15K	PDF ↗
2025-04-09	Josh Gottheimer	Sell (P)	$1K – $15K	PDF ↗

Who owns BLK

29 super-investors · 2025Q4

Tracked stake

9.33M

Combined value

$9.99B

% of shares outstanding

—

shares-out unknown

Quarter action mix

New11Added12Trim4Held2

#	Manager	Shares	Value	% of book	Last action	8Q trend
1	Norges Bank Norway SWF	2.56M	$2.74B	0.3%	New+2.56M
2	Ken Fisher Fisher Asset Mgmt	1.82M	$1.95B	0.7%	Trim−77.8K
3	Wellington Management	1.45M	$1.55B	0.3%	Added+968.2K
4	ValueAct Holdings	695.0K	$744M	10.6%	New+695.0K	—
5	T. Rowe Price	529.7K	$567M	0.1%	Added+4.5K
6	Izzy Englander Millennium Mgmt	508.1K	$544M	0.2%	Added+154.2K
7	Ken Griffin Citadel Advisors	403.8K	$432M	0.1%	Added+249.5K
8	Ken Griffin Citadel Advisors	228.2K	$244M	0.0%	Added+249.5K
9	Tom Gayner Markel Group	220.2K	$236M	1.9%	Held
10	Ken Griffin Citadel Advisors	172.1K	$184M	0.0%	Added+249.5K
11	Steve Cohen Point72	168.5K	$180M	0.2%	New+168.5K
12	Izzy Englander Millennium Mgmt	112.8K	$121M	0.1%	Added+154.2K
13	AQR Capital Management	88.6K	$95M	0.0%	Added+31.3K
14	D.E. Shaw & Co.	70.3K	$75M	0.0%	New+70.3K
15	Bill Nygren Harris / Oakmark	54.4K	$58M	0.1%	Trim−12.3K
16	Paul Tudor Jones Tudor Investment	52.1K	$56M	0.1%	New+51.9K
17	Paul Tudor Jones Tudor Investment	51.9K	$56M	0.1%	New+51.9K
18	Two Sigma Investments	44.0K	$47M	0.1%	Added+16.5K
19	Izzy Englander Millennium Mgmt	43.1K	$46M	0.0%	Added+154.2K
20	D.E. Shaw & Co.	18.6K	$20M	0.0%	New+70.3K
21	Steve Cohen Point72	6.2K	$7M	0.0%	New+168.5K
22	Paul Tudor Jones Tudor Investment	5.4K	$6M	0.0%	New+51.9K
23	Mario Gabelli GAMCO	4.6K	$5M	0.0%	Trim−87
24	Ray Dalio Bridgewater Associates	4.6K	$5M	0.0%	Added+1.3K
25	Renaissance Technologies	3.8K	$4M	0.0%	New+3.8K	—
26	Steve Cohen Point72	3.8K	$4M	0.0%	New+168.5K
27	Jeremy Grantham GMO	1.2K	$1M	0.0%	Held
28	Ron Baron Baron Capital / BAMCO	1.1K	$1M	0.0%	Trim−48
29	Dodge & Cox	711	$761K	0.0%	Added+56

Recent moves

20 transactions

ADDTwo Sigma Investments
+16,500 · 2025Q4
ADDWellington Management
+968,245 · 2025Q4
ADDAQR Capital Management
+31,283 · 2025Q4
TRIMBill Nygren (Harris / Oakmark)
−12,289 · 2025Q4
TRIMRon Baron (Baron Capital / BAMCO)
−48 · 2025Q4
SOLDAndreas Halvorsen (Viking Global)
−619,492 · 2025Q4
ADDKen Griffin (Citadel Advisors)
+249,545 · 2025Q4
NEWValueAct Holdings
+695,000 · 2025Q4
NEWD.E. Shaw & Co.
+70,258 · 2025Q4
NEWSteve Cohen (Point72)
+168,495 · 2025Q4
ADDT. Rowe Price
+4,514 · 2025Q4
ADDIzzy Englander (Millennium Mgmt)
+154,198 · 2025Q4
NEWPaul Tudor Jones (Tudor Investment)
+51,897 · 2025Q4
SOLDRuane, Cunniff & Goldfarb (Sequoia)
−186 · 2025Q4
ADDRay Dalio (Bridgewater Associates)
+1,305 · 2025Q4
ADDDodge & Cox
+56 · 2025Q4
NEWRenaissance Technologies
+3,846 · 2025Q4
NEWNorges Bank (Norway SWF)
+2,562,438 · 2025Q4
TRIMKen Fisher (Fisher Asset Mgmt)
−77,808 · 2025Q4
TRIMMario Gabelli (GAMCO)
−87 · 2025Q4

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