11 institutions reported holding $1.4M of Reading International Inc B (RDIB) in SEC 13F filings for 2026-06-30. Largest institutional holders: Teton Advisors, LLC ($632,804), GAMCO INVESTORS, INC. ET AL ($289,340), DIMENSIONAL FUND ADVISORS LP ($153,680), VANGUARD GROUP INC ($135,081), GABELLI FUNDS LLC ($125,097). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | Teton Advisors, LLC | $632,804 | 74,360 | Hold |
| 2 | GAMCO INVESTORS, INC. ET AL | $289,340 | 34,000 | Hold |
| 3 | DIMENSIONAL FUND ADVISORS LP | $153,680 | 17,849 | Trimmed |
| 4 | VANGUARD GROUP INC | $135,081 | 15,689 | Added |
| 5 | GABELLI FUNDS LLC | $125,097 | 14,700 | Hold |
| 6 | CITIGROUP INC | $36,085 | 4,191 | Trimmed |
| 7 | INVESTMENT COUNSEL CO OF NEVADA | $31,823 | 3,696 | Trimmed |
| 8 | UBS Group AG | $9,979 | 1,159 | Trimmed |
| 9 | Tower Research Capital LLC (TRC) | $4,340 | 510 | Trimmed |
| 10 | SBI Securities Co., Ltd. | $26 | 3 | Hold |
| 11 | Royal Bank of Canada | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-06-30