42 institutions reported holding $14.1M of OPTICAL CABLE CORP (OCC) in SEC 13F filings for 2026-03-31. Largest institutional holders: GENDELL JEFFREY L ($3.4M), VANGUARD CAPITAL MANAGEMENT LLC ($1.7M), DIMENSIONAL FUND ADVISORS LP ($1.4M), SEI INVESTMENTS CO ($753,753), RENAISSANCE TECHNOLOGIES LLC ($687,250). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | GENDELL JEFFREY L | $3.4M | 417,440 | Added |
| 2 | VANGUARD CAPITAL MANAGEMENT LLC | $1.7M | 211,487 | New |
| 3 | DIMENSIONAL FUND ADVISORS LP | $1.4M | 168,211 | Trimmed |
| 4 | SEI INVESTMENTS CO | $753,753 | 91,364 | New |
| 5 | RENAISSANCE TECHNOLOGIES LLC | $687,250 | 83,303 | Trimmed |
| 6 | Informed Momentum Co LLC | $619,361 | 75,074 | New |
| 7 | GEODE CAPITAL MANAGEMENT, LLC | $597,882 | 72,428 | Added |
| 8 | TWO SIGMA INVESTMENTS, LP | $583,019 | 70,669 | Added |
| 9 | JANE STREET GROUP, LLC | $451,935 | 54,780 | Added |
| 10 | BRIDGEWAY CAPITAL MANAGEMENT, LLC | $398,211 | 48,268 | Hold |
| 11 | BlackRock, Inc. | $308,121 | 37,348 | Trimmed |
| 12 | STATE STREET CORP | $303,377 | 36,773 | Hold |
| 13 | Legacy Financial Advisors, Inc. | $275,492 | 33,393 | Trimmed |
| 14 | GSA CAPITAL PARTNERS LLP | $270,000 | 32,725 | Added |
| 15 | VANGUARD FIDUCIARY TRUST CO | $268,076 | 32,494 | New |
| 16 | Round Rock Advisors, LLC | $257,994 | 31,272 | Hold |
| 17 | SHIKIAR ASSET MANAGEMENT INC | $232,000 | 28,150 | Added |
| 18 | UBS Group AG | $185,196 | 22,448 | Added |
| 19 | RBF Capital, LLC | $164,992 | 19,999 | Hold |
| 20 | MORGAN STANLEY | $156,140 | 18,926 | Added |
| 21 | MERCER GLOBAL ADVISORS INC /ADV | $148,500 | 18,000 | Hold |
| 22 | Clearstead Advisors, LLC | $147,659 | 17,898 | Hold |
| 23 | HRT FINANCIAL LP | $143,000 | 17,437 | New |
| 24 | Hilltop Holdings Inc. | $115,500 | 14,000 | Hold |
| 25 | Centiva Capital, LP | $107,531 | 13,034 | New |
Source: SEC Form 13F filings · as of 2026-03-31