Who owns NYLI MacKay Muni Short Duration ETF?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of MMSD from SEC Form 13F filings across 9 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 9 institutions disclosed 4.7M shares of NYLI MacKay Muni Short Duration ETF worth $119.9M — about 158.7% of shares outstanding; the largest disclosed holder is New York Life Investment Management LLC. Source: SEC Form 13F filings, parsed by EvidInvest.
9
13F holders
$119.9M
value, 2026 filers
158.7%
of shares outstanding (4.7M sh)
5
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of MMSD's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | New York Life Investment Management LLCNEW | 4.0M | $100.2M | 0.7% | 132.6% | new |
| 2 | Cetera Investment Advisers | 460,006 | $11.7M | 0.0% | 15.4% | +2693.5% |
| 3 | INVENIO WEALTH PARTNERS LLCNEW | 219,844 | $5.6M | 2.0% | 7.4% | new |
| 4 | M Wealth Management, LLC | 48,503 | $1.2M | 1.0% | 1.6% | +18.7% |
| 5 | WEALTH ENHANCEMENT ADVISORY SERVICES, LLC | 21,405 | $542,615 | 0.0% | 0.7% | +22.0% |
| 6 | ROYAL BANK OF CANADA | 10,282 | $260,000 | 0.0% | 0.3% | -74.1% |
| 7 | JANE STREET GROUP, LLCNEW | 8,876 | $224,865 | 0.0% | 0.3% | new |
| 8 | JPMORGAN CHASE & CONEW | 8,162 | $207,560 | 0.0% | 0.3% | new |
| 9 | UBS Group AGNEW | 690 | $17,480 | 0.0% | 0% | new |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.