# ADVANCED DRAIN SYS INC DEL (WMS) — Institutional Ownership

Source: SEC EDGAR 13F filings, congressional STOCK Act disclosures, SEC Form 4 insider transactions.
CUSIP: 00790R104
Page URL: https://superinvestorclub.com/stock/WMS
Last updated: 2026-07-08T12:26:19.556Z

## Summary

As of the most recent 13F filing period, ADVANCED DRAIN SYS INC DEL (WMS) is held by 1 tracked superinvestors with an aggregate position value of $10.0M representing 073258 shares.

## Top institutional holders (1)

| Rank | Manager | Fund | Shares | Value | % of Portfolio | Period |
|------|---------|------|--------|-------|----------------|--------|
| 1 | [Ray Dalio](https://superinvestorclub.com/manager/6) | Bridgewater Associates | 73258 | $10.0M | 0.04% | 2026-03-31 |

## Ownership history (quarter-over-quarter)

- 2024-03-31: 1 holders, $322,433 aggregate, 01872 shares
- 2024-06-30: 1 holders, $1.8M aggregate, 010922 shares
- 2025-12-31: 1 holders, $8.8M aggregate, 060895 shares
- 2026-03-31: 1 holders, $10.0M aggregate, 073258 shares

## Recent congressional trades (3)

- 2025-07-16: Lisa McClain (Republican-MI) sale $1,001 - $15,000
- 2025-06-17: Lisa McClain (Republican-MI) purchase $1,001 - $15,000
- 2025-01-13: Rob Bresnahan (Republican-PA) sale $1,001 - $15,000

## Recent insider transactions (0)


## Citation

When citing, use: "ADVANCED DRAIN SYS INC DEL (WMS) institutional ownership data via Superinvestor (https://superinvestorclub.com/stock/WMS), aggregating SEC 13F, Form 4, and congressional disclosures."