Tracked funds
14Unique WSM-tracked managers; table rows may include common shares and optionsMKSI
Ticker case file
MKSI
MKS INC.
$335.15+1.14%NMS
Politicians active
1Recent transactions disclosed via House Clerk / Senate eFD13F notional
$2.1B2026-03-31Top conviction
5.3%max % across any fund's portfolioThis page is the WSM tracked universe, not market-wide ownership. 13F rows are quarterly snapshots, about 45 days delayed; PTR rows are event-based public disclosures.
13F filing
Funds holding this ticker
Politician
Politician PTR activity
| Public date | Politician | Action | Owner | Amount range | Filing |
|---|---|---|---|---|---|
| 2025-11-21 | Lisa Mcclain HouseholdR · MI-09 | Sale | Self | $1K–$15K | 20033446 |
| 2025-11-21 | Lisa Mcclain HouseholdR · MI-09 | Purchase | Self | $1K–$15K | 20033446 |
| 2025-11-21 | Lisa Mcclain HouseholdR · MI-09 | Sale | Self | $1K–$15K | 20033446 |
| 2025-09-12 | Lisa Mcclain HouseholdR · MI-09 | Purchase | Self | $1K–$15K | 20030932 |
Combined activity
13F filings + PTR transactions, newest first
- 13F filing2026-05-15FMR LLC · $444.4M↗
- 13F filing2026-05-15Point72 Asset Management, L.P. · $370.1M↗
- 13F filing2026-05-15Whale Rock Capital Management LLC · $300.3M↗
- 13F filing2026-05-15Citadel Advisors LLC · $217.6M↗
- 13F filing2026-05-15Millennium Management LLC · $205.5M↗
- 13F filing2026-05-15Balyasny Asset Management L.P. · $93.6M↗
- 13F filing2026-05-15Two Sigma Investments, LP · $64M↗
- 13F filing2026-05-15Light Street Capital Management, LLC · $28.1M↗
- 13F filing2026-05-15Citadel Advisors LLC · $12.8M↗
- 13F filing2026-05-15Bridgewater Associates, LP · $8.8M↗
- 13F filing2026-05-15Citadel Advisors LLC · $7.1M↗
- 13F filing2026-05-15Maverick Capital Ltd · $1.7M↗
- 13F filing2026-05-15Point72 Asset Management, L.P. · $252.8K↗
- 13F filing2026-05-14Loomis, Sayles & Company, L.P. · $29.2M↗
- 13F filing2026-05-14Renaissance Technologies LLC · $23.8M↗
- 13F filing2026-05-14Loomis, Sayles & Company, L.P. · $10.4M↗
- 13F filing2026-05-13Capital World Investors · $293.5M↗
- 13F filing2026-05-07WCM Investment Management, LLC · $2.6M↗
- PTR2025-11-21Lisa Mcclain Household · Sale · $1K–$15K↗
- PTR2025-11-21Lisa Mcclain Household · Purchase · $1K–$15K↗
- PTR2025-11-21Lisa Mcclain Household · Sale · $1K–$15K↗
- PTR2025-09-12Lisa Mcclain Household · Purchase · $1K–$15K↗
Often co-held with