Who owns TCW Transform Supply Chain ETF?
Institutional ownership of SUPP from SEC Form 13F filings across 5 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.
5
13F holders
$4.6M
value, 2026 filers
31.8%
of shares outstanding (51,792 sh)
1
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 SUPP's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | TCW GROUP INC | 27,674 | $2.5M | 0.0% | 17% | -9.7% |
| 2 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 19,763 | $1.8M | 0.0% | 12.1% | -13.6% |
| 3 | Millstone Evans Group, LLC | 4,314 | $382,338 | 0.2% | 2.6% | -1.9% |
| 4 | UBS Group AGNEW | 40 | $3,545 | 0.0% | 0% | new |
| 5 | MORGAN STANLEY | 1 | $89 | 0.0% | 0% | 0.0% |
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.