Mks MKSI Institutional Ownership

NASDAQ MKSI

$271.24 +5.88 (+2.22%)

At close: Oct 1, 2026 · 4:00 PM EDT

Institutions by Trading Activity

776 Institutions

Increased 456 58.8%

Unchanged 69 8.9%

Reduced 251 32.3%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

105.98%

▲+3.68 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

776

filed 13F for Jun 2026

▲+160 vs prior quarter

Net Shares Added (QoQ)

+3.78Mn

accumulated since last quarter

Value of Holdings

$19.01Bn

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 776 institutional investors with active 13F positions as of June 2026.

Their combined ownership stood at 106.0% of outstanding shares in June 2026, up from 102.3% in March 2026.
They increased total shares held in MKSI by 5.57% quarter over quarter, and investors in Mks increased 97.46% from a year ago.
Among the 776 funds, 456 bought more Mks shares, 251 sold down, and 69 held their ground.
The aggregate institutional position in Mks amounted to 71.64Mn shares as of June 2026, up by 3.78Mn shares quarter on quarter, and down 2.26Mn shares year over year.
As of June 30, 2026, the biggest holder of Mks is BlackRock, Inc. at 6.93Mn shares, representing 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 largest sellers of Mks for the quarter ending June 2026 were FMR LLC (434.34K), WELLINGTON MANAGEMENT GROUP LLP (417.1K), Franklin Templeton Inc (390.15K), DIMENSIONAL FUND ADVISORS LP (302.2K), AMERICAN CENTURY COMPANIES INC (275.4K).
Per Business Quant data, the top 10 holders of Mks for the quarter ending June 2026 are 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