Mks MKSI Institutional Ownership

NASDAQ MKSI

$196.11 -19.99 (-9.25%)

At close: Oct 22, 2026 · 4:00 PM EDT

Institutions by Trading Activity

775 Institutions

Increased 455 58.7%

Unchanged 68 8.8%

Reduced 252 32.5%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

—

13F totals exceed reported shares outstanding

Shares Held by Institutions

70.87Mn

of 67.60Mn outstanding

▲+2.79% QoQ

Shares Outstanding

67.60Mn

Institutional Investors

775

filed 13F for Jun 2026

▲+159 vs prior quarter

Net Shares Added (QoQ)

+1.92Mn

accumulated since last quarter

Value of Holdings

$13.90Bn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Updated Oct 21, 2026

Mks Inc (NASDAQ:MKSI) had 775 institutional holders reporting a position on Form 13F for the quarter ended June 30, 2026.

Total shares held in Mks rose 2.79% from Q1 2026, while the number of holders rose 98.21% from Q2 2025.
Of these 775 holders, 455 added to their positions, 252 reduced their stakes and 68 left their positions unchanged.
Altogether, institutional holders owned 70.87Mn MKSI shares at the end of Q2 2026, up 1.92Mn from the prior quarter and down 3.03Mn from a year earlier.
BlackRock, Inc. held the largest position in MKSI at 6.93Mn shares as of June 30, 2026.
The biggest increases in MKSI positions during Q2 2026 came from JPMorgan Chase & Co (+1.28Mn shares), Invesco Ltd. (+940.21K shares), Qube Research & Technologies Ltd (+531.71K shares), Point72 Asset Management, L.P. (+386.51K shares) and BlackRock, Inc. (+288.3K shares).
Among holders that kept a stake in Mks, the biggest sellers in Q2 2026 were FMR LLC (-434.35K shares), Wellington Management Group LLP (-417.1K shares), Franklin Templeton Inc (-390.15K shares), Dimensional Fund Advisors LP (-302.2K shares) and American Century Companies Inc (-275.4K shares).
According to Business Quant data, the leading holders of MKSI for Q2 2026 were BlackRock, Inc. (6.93Mn shares), Invesco Ltd. (4.66Mn shares), Vanguard Portfolio Management LLC (3.71Mn shares), JPMorgan Chase & Co (3.37Mn shares), Vanguard Capital Management LLC (3.05Mn shares), State Street Corp (2.13Mn shares), Point72 Asset Management, L.P. (2Mn shares), Capital International Investors (1.92Mn shares), T. Rowe Price Associates Inc (1.89Mn shares) and Aspex Management (HK) Ltd (1.82Mn shares).

Form 13F Holdings

776 Institutional Holders

Report period 30 Jun, 2026

Total shares held 70.87Mn

Of outstanding —

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	BlackRock, Inc.	0002012383	6,930,030	10.25%	▲288,300	+4.34%	$3.08Bn
2	Invesco Ltd.	0000914208	4,661,664	6.90%	▲940,205	+25.26%	$2.07Bn
3	VANGUARD PORTFOLIO MANAGEMENT LLC	0002100121	3,707,327	5.48%	▲21,834	+0.59%	$1.65Bn
4	Jpmorgan Chase & Co	0000019617	3,373,844	4.99%	▲1,277,502	+60.94%	$1.40Bn
5	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	3,049,560	4.51%	▲35,359	+1.17%	$1.36Bn
6	State Street Corp	0000093751	2,134,663	3.16%	▲76,931	+3.74%	$949.44Mn
7	Point72 Asset Management, L.P.	0001603466	1,996,843	2.95%	▲386,512	+24.00%	$888.20Mn
8	Capital International Investors	0001562230	1,915,187	2.83%	▼53,583	-2.72%	$851.88Mn
9	PRICE T ROWE ASSOCIATES INC /MD/	0000080255	1,889,901	2.80%	▲189,753	+11.16%	$840.63K
10	Aspex Management (HK) Ltd	0001768375	1,820,441	2.69%	▲281,652	+18.30%	$809.73K
11	GEODE CAPITAL MANAGEMENT, LLC	0001214717	1,539,072	2.28%	▼247	-0.02%	$686.57Mn
12	FMR LLC	0000315066	1,499,498	2.22%	▼434,345	-22.46%	$666.98Mn
13	WELLINGTON MANAGEMENT GROUP LLP	0000902219	1,416,034	2.09%	▼417,103	-22.75%	$629.85Mn
14	Capital World Investors	0001422849	1,366,290	2.02%	▲89,090	+6.98%	$607.73Mn
15	Whale Rock Capital Management LLC	0001387322	1,271,373	1.88%	▼35,351	-2.71%	$565.51Mn
16	Neuberger Berman Group LLC	0001465109	1,165,068	1.72%	▼268,461	-18.73%	$518.22Mn
17	ALKEON CAPITAL MANAGEMENT LLC	0001230239	1,072,040	1.59%	▲1,072,040	0.00%	$476.84Mn
18	NORGES BANK	0001374170	954,667	1.41%	▲954,667	0.00%	$424.64Mn
19	WESTFIELD CAPITAL MANAGEMENT CO LP	0001177719	928,617	1.37%	▼118,146	-11.29%	$413.05Mn
20	Sachem Head Capital Management LP	0001582090	812,700	1.20%	▲812,700	0.00%	$361.49Mn

Showing 1 to 20 of 776 holders