Mks MKSI Institutional Ownership

NASDAQ MKSI

$268.08 +2.58 (+0.97%)

As of: Sep 9, 2026 · 3:59 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

105.98%

▲+3.63 pp QoQ

Shares Held by Institutions

71.64Mn

of 67.60Mn outstanding

▲+5.57% QoQ

Shares Outstanding

67.60Mn

-4.04Mn held outside 13F filers

Institutional Investors

775

filed 13F for Jun 2026

▲+159 vs prior quarter

Net Shares Added (QoQ)

+3.78Mn

accumulated since last quarter

Value of Holdings

$18.65Bn

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

Quarter ending 30 Jun, 2026

Mks Inc (NASDAQ:MKSI) has 775 institutional investors that have filed 13F reports for the period ending June 2026.

These investors held 106.0% of outstanding shares in June 2026, up from 102.3% in March 2026.
Their total shares held in MKSI increased 5.57% quarter over quarter, and separately, investors owning Mks increased 97.2% from a year ago.
Among the 775 funds, 455 bought more Mks shares, 252 sold down, and 68 held their ground.
Combined, these investors held 71.64Mn shares in MKSI for June 2026, up by 3.78Mn shares quarter on quarter, and down 8.93Mn shares year over year.
BlackRock, Inc. holds the largest position in MKSI at 6.93Mn shares as of June 30, 2026, or 10.25% of shares outstanding.
The largest buyers of Mks for the quarter ending June 2026 were Jpmorgan Chase & Co (1.28Mn), ALKEON CAPITAL MANAGEMENT LLC (1.07Mn), NORGES BANK (954.67K), Invesco Ltd. (940.2K), Sachem Head Capital Management LP (812.7K).
The biggest sellers of Mks for the quarter ending June 2026 included FMR LLC (434.34K), WELLINGTON MANAGEMENT GROUP LLP (417.1K), Franklin Resources Inc (390.15K), DIMENSIONAL FUND ADVISORS LP (302.2K), AMERICAN CENTURY COMPANIES INC (275.4K).
Per Business Quant, the top 10 investors in MKSI for the quarter ending June 2026 include BlackRock, Inc. (6.93Mn), Invesco Ltd. (4.66Mn), VANGUARD PORTFOLIO MANAGEMENT LLC (3.71Mn), Jpmorgan Chase & Co (3.37Mn), VANGUARD CAPITAL MANAGEMENT LLC (3.05Mn), State Street Corp (2.13Mn), Point72 Asset Management, L.P. (2.0Mn), Capital International Investors (1.92Mn), PRICE T ROWE ASSOCIATES INC /MD/ (1.89Mn), Aspex Management (HK) Ltd (1.82Mn).

Form 13F Holdings

775 Institutional Holders

Report period 30 Jun, 2026

Total shares held 71.64Mn

Of outstanding 105.98%

#	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 775 holders