Who owns AMG GW&K Muni Income ETF?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of MUNX from SEC Form 13F filings across 4 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, 4 institutions disclosed 92,740 shares of AMG GW&K Muni Income ETF worth $2.3M — about 27.2% of shares outstanding; the largest disclosed holder is Cerity Partners LLC. Source: SEC Form 13F filings, parsed by EvidInvest.
4
13F holders
$2.3M
value, 2026 filers
27.2%
of shares outstanding (92,740 sh)
0
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 MUNX's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | Cerity Partners LLC | 40,000 | $1.0M | 0.0% | 11.7% | 0.0% |
| 2 | Family Office Research LLC | 28,855 | $727,200 | 0.3% | 8.5% | +0.5% |
| 3 | ROYAL BANK OF CANADA | 14,971 | $377,000 | 0.0% | 4.4% | -25.2% |
| 4 | JANE STREET GROUP, LLC | 8,914 | $224,647 | 0.0% | 2.6% | -68.1% |
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.