MKSIMKS Inc. Common Stock

CSNasdaq (XNAS)·USD

Identity

Security key: 18603
Ticker: MKSI
Type: CS — Common Stock
Exchange: Nasdaq(XNAS)
Venue group: NASDAQ
Operating MIC: XNAS
Market: stocks
Locale: us
Currency: USD
Listed: 1999-03-30
Round lot: 100
Active: Yes
Last seen in a load: 2026-08-14 20:49
Vendor updated: 2026-08-13 06:09
Ticker root / suffix: MKSI

Detail

Enriched 2026-08-14 20:47

Market cap: $20,747,095,321.14
Shares outstanding (class): 67,617,558
Shares outstanding (weighted): 67,617,558
SIC: 3823 INDUSTRIAL INSTRUMENTS FOR MEASUREMENT, DISPLAY, AND CONTROL
Employees: 10,300
Location: ANDOVER, MA
Homepage: https://www.mksinst.com
Description: MKS Inc delivers foundational technology solutions for leading edge semiconductor manufacturing, electronics and packaging, and specialty industrial applications. The company provides instruments, components, subsystems, systems, process control solutions, and specialty chemicals technology that improve process performance and optimize productivity. Its solutions address challenges of miniaturization and complexity in device manufacturing, enabling increased power, speed, and feature enhancement. MKS Inc operates through three divisions: Vacuum Solutions Division (VSD), Photonics Solutions Division (PSD), and Materials Solutions Division (MSD). The company operates in the United States, which generates maximum revenue, as well as China and other countries.

Market cap and share counts drift.

Funds holding this security

308 funds · 316 positions · $4.83B reported value, as of 2026-03-31

All holders →

Fund	Ticker	Position value	% of fund	Balance	Match
SMALLCAP World Fund Inc SMALLCAP World Fund Inc	—	$588.08M	0.73%	2,559,003 NS	FIGI
iShares Core S&P Mid-Cap ETF iShares Trust	IJH	$511.08M	0.48%	2,223,938 NS	FIGI
VANGUARD TOTAL STOCK MARKET INDEX FUND VANGUARD INDEX FUNDS	VTI	$490.85M	0.02%	2,135,899 NS	FIGI
VANGUARD SMALL-CAP INDEX FUND VANGUARD INDEX FUNDS	VB	$356.33M	0.22%	1,550,559 NS	FIGI
VANGUARD SMALL-CAP VALUE INDEX FUND VANGUARD INDEX FUNDS	VBR	$226.92M	0.37%	987,415 NS	FIGI
VANGUARD EXTENDED MARKET INDEX FUND VANGUARD INDEX FUNDS	VXF	$172.21M	0.21%	749,341 NS	FIGI
JPMorgan Mid Cap Value Fund J.P. Morgan Fleming Mutual Fund Group, Inc.	—	$163.95M	1.51%	713,436 NS	FIGI
T. Rowe Price Mid-Cap Value Fund, Inc. T. ROWE PRICE MID-CAP VALUE FUND, INC.	—	$118.78M	0.80%	516,848 NS	FIGI
State Street SPDR S&P MidCap 400SM ETF Trust —	—	$116.34M	0.48%	506,261 NS	FIGI
Victory Sycamore Established Value Fund Victory Portfolios	—	$110.31M	0.73%	480,000 NS	FIGI
VIP Mid Cap Portfolio Variable Insurance Products Fund III	—	$102.86M	1.29%	447,600 NS	FIGI
JPMorgan Mid Cap Growth Fund JPMorgan Trust II	—	$75.42M	0.66%	328,202 NS	FIGI
State Street(R) SPDR(R) Portfolio S&P 400(TM) M… SPDR SERIES TRUST	SPMD	$75.41M	0.48%	328,150 NS	FIGI
JPMorgan Mid Cap Equity Fund JPMorgan Trust I	—	$70.27M	1.26%	305,767 NS	FIGI
iShares S&P Mid-Cap 400 Growth ETF iShares Trust	IJK	$66.68M	0.67%	290,173 NS	FIGI

How positions resolve to the securities master. FIGI_COMPOSITE is exact identifier equality — both sides got the FIGI from Bloomberg. TICKER is a narrow fallback used only where the master row carries no FIGI at all (2,389 rows do not, disproportionately Irish-domiciled US listings like LIN and ACN). Roughly 22% of all positions resolve to the master.

Funds holding this security

Identifiers

master.security_identifier

TICKERMKSI
FIGI_COMPOSITEBBG000BVMG26
FIGI_SHARE_CLASSBBG001SBB6Q8
CIK0001049502
ISINUS55306N1046
Resolved through OpenFIGI from a holdings ISIN, not supplied by the securities vendor.

Identifiers

Classification

classification.v_security_classification

Asset class: Equity
Sector: Information Technology
Industry: Semiconductors
Source: LLMunreviewed
Self-reported confidence: 0.85
Model: deepseek
Rationale: MKS Instruments primarily provides equipment for semiconductor manufacturing, despite its SIC classification.

Classifications are unreviewed model output. All 5,771 assignments carry source = LLM and is_reviewed = false. Confidence is the model’s own estimate and is not calibrated — it clustered at 0.90–0.98 across the whole first pass, including rows that later proved wrong. Use it to order a review queue, not as a probability. Two share classes of one issuer can disagree.

Classification

Fund data

Not linked to a fund series.

Either this is not a fund, or it is one the SEC share-class snapshot cannot reach — commodity trusts and notes have no series ID at all.