1 institutions reported holding $21,510 of AAM (ASDBDX) in SEC 13F filings for 2026-03-31. Largest institutional holders: THURSTON, SPRINGER, MILLER, HERD & TITAK, INC. ($21,510). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | THURSTON, SPRINGER, MILLER, HERD & TITAK, INC. | $21,510 | 1,978 | New |
Source: SEC Form 13F filings · as of 2026-03-31