New Positions
6 managers initiated
Top five by reported value
Optical Cable Corp NASDAQ NMS - GLOBAL MARKET:OCC
Institutional holders, quarter-over-quarter share deltas, and new and closed positions disclosed in Form 13F. Period 2025-12-31 · prior 2025-09-30.
6 new13 added14 reduced3 exited
Total Institutional Holders
33
as of 2025-12-31
Top Holder
GENDELL JEFFREY L
$1.8M
Largest QoQ Increase
GENDELL JEFFREY L
+133,510 sh
Largest QoQ Decrease
Royal Bank of Canada
-245,197 sh
New Positions(6)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| JANE STREET GROUP, LLC | 47,095 | +47,095 | $209.6K | +$209.6K | — |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 32,653 | +32,653 | $145.3K | +$145.3K | — |
| Round Rock Advisors, LLC | 31,272 | +31,272 | $139.2K | +$139.2K | — |
| Dynamic Technology Lab Private Ltd | 12,775 | +12,775 | $57.0K | +$57.0K | — |
| GSA CAPITAL PARTNERS LLP | 20,161 | +20,161 | $90 | +$90 | — |
| CITIGROUP INC | 1 | +1 | $4 | +$4 | — |
Added To(13)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| DIMENSIONAL FUND ADVISORS LP | 268,932 | +4,497 | $1.2M | -$950.5K | 1.7% |
| VANGUARD GROUP INC | 251,083 | +15,059 | $1.1M | -$799.2K | 6.4% |
| GENDELL JEFFREY L | 415,340 | +133,510 | $1.8M | -$440.2K | 47.4% |
| BlackRock, Inc. | 37,744 | +396 | $168.0K | -$135.3K | 1.1% |
| RBF Capital, LLC | 39,998 | +7,503 | $178.0K | -$85.9K | 23.1% |
| STATE STREET CORP | 36,773 | +10,000 | $163.6K | -$53.8K | 37.4% |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 48,268 | +15,255 | $214.8K | -$53.3K | 46.2% |
| NORTHERN TRUST CORP | 12,570 | +1,574 | $55.9K | -$33.4K | 14.3% |
| UBS Group AG | 8,826 | +525 | $39.3K | -$28.1K | 6.3% |
| Tower Research Capital LLC (TRC) | 256 | +21 | $1.1K | -$769 | 8.9% |
| SBI Securities Co., Ltd. | 120 | +20 | $534 | -$278 | 20.0% |
| BANK OF AMERICA CORP /DE/ | 64 | +3 | $284 | -$212 | 4.9% |
| SHIKIAR ASSET MANAGEMENT INC | 24,600 | +9,500 | $109 | -$14 | 62.9% |
Reduced(14)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| Legacy Financial Advisors, Inc. | 43,393 | -213,141 | $193.1K | -$1.9M | -83.1% |
| Royal Bank of Canada | 2,049 | -245,197 | $10.0K | -$694.0K | -99.2% |
| RENAISSANCE TECHNOLOGIES LLC | 101,004 | -5,299 | $449.5K | -$413.7K | -5.0% |
| MARSHALL WACE, LLP | 20,696 | -30,586 | $92.1K | -$324.3K | -59.6% |
| TWO SIGMA INVESTMENTS, LP | 49,994 | -10,037 | $222.5K | -$265.0K | -16.7% |
| GEODE CAPITAL MANAGEMENT, LLC | 64,556 | -3,052 | $287.3K | -$261.7K | -4.5% |
| MERCER GLOBAL ADVISORS INC /ADV | 18,000 | 0 | $80.1K | -$66.1K | 0.0% |
| Clearstead Advisors, LLC | 17,898 | 0 | $79.6K | -$65.7K | 0.0% |
| Hilltop Holdings Inc. | 14,000 | 0 | $62.3K | -$51.4K | 0.0% |
| MORGAN STANLEY | 1,570 | 0 | $7.0K | -$5.8K | 0.0% |
| WELLS FARGO & COMPANY/MN | 1,000 | 0 | $4.5K | -$3.7K | 0.0% |
| Geneos Wealth Management Inc. | 528 | 0 | $2.4K | -$1.9K | 0.0% |
| ADVISOR GROUP HOLDINGS, INC. | 125 | 0 | $556 | -$467 | 0.0% |
| NATIONAL BANK OF CANADA /FI/ | 69 | 0 | $302 | -$256 | 0.0% |
Sold Out(3)
| Manager | Shares | Δ Shares | Value | Δ Value | % Δ |
|---|---|---|---|---|---|
| EAM Investors, LLC | 0 | -88,030 | $0 | -$714.8K | — |
| ESSEX INVESTMENT MANAGEMENT CO LLC | 0 | -16,633 | $0 | -$135.1K | — |
| CITADEL ADVISORS LLC | 0 | -12,537 | $0 | -$101.8K | — |
Top Holders by reported value
Ranked by the dollar value reported on the latest Form 13F. Share counts reflect long positions as of 2025-12-31.
| Manager | Shares | $ Value | Δ Shares | QoQ % |
|---|---|---|---|---|
| GENDELL JEFFREY L | 415,340 | $1.8M | +133,510 | 47.4% |
| DIMENSIONAL FUND ADVISORS LP | 268,932 | $1.2M | +4,497 | 1.7% |
| VANGUARD GROUP INC | 251,083 | $1.1M | +15,059 | 6.4% |
| RENAISSANCE TECHNOLOGIES LLC | 101,004 | $449.5K | -5,299 | -5.0% |
| GEODE CAPITAL MANAGEMENT, LLC | 64,556 | $287.3K | -3,052 | -4.5% |
| TWO SIGMA INVESTMENTS, LP | 49,994 | $222.5K | -10,037 | -16.7% |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 48,268 | $214.8K | +15,255 | 46.2% |
| JANE STREET GROUP, LLC | 47,095 | $209.6K | +47,095 | — |
| Legacy Financial Advisors, Inc. | 43,393 | $193.1K | -213,141 | -83.1% |
| RBF Capital, LLC | 39,998 | $178.0K | +7,503 | 23.1% |
| BlackRock, Inc. | 37,744 | $168.0K | +396 | 1.1% |
| STATE STREET CORP | 36,773 | $163.6K | +10,000 | 37.4% |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 32,653 | $145.3K | +32,653 | — |
| Round Rock Advisors, LLC | 31,272 | $139.2K | +31,272 | — |
| MARSHALL WACE, LLP | 20,696 | $92.1K | -30,586 | -59.6% |
| MERCER GLOBAL ADVISORS INC /ADV | 18,000 | $80.1K | 0 | 0.0% |
| Clearstead Advisors, LLC | 17,898 | $79.6K | 0 | 0.0% |
| Hilltop Holdings Inc. | 14,000 | $62.3K | 0 | 0.0% |
| Dynamic Technology Lab Private Ltd | 12,775 | $57.0K | +12,775 | — |
| NORTHERN TRUST CORP | 12,570 | $55.9K | +1,574 | 14.3% |
New & Closed Positions this quarter
Closed Positions
3 managers exited
Top five by prior-quarter value
- EAM Investors, LLC$714.8K
- ESSEX INVESTMENT MANAGEMENT CO LLC$135.1K
- CITADEL ADVISORS LLC$101.8K
Methodology
Form 13F is the SEC's quarterly disclosure for institutional investment managers exercising discretion over $100 million or more in qualifying U.S. equity securities. Managers must file within 45 days of each calendar quarter end, which is why holdings shown here reflect a snapshot at the period date — not real-time positioning.
Quarter-over-quarter deltas compare each manager's most recently reported share count for OCC against its prior-quarter count. New positions are entries where the prior count was zero; closed positions are entries where the current count is zero. Amendments (13F-HR/A) replace prior filings for the same period.
Source: SEC EDGAR Form 13F (XML information tables). Dollar values are as reported by the manager and may use mid-quarter pricing conventions. CUSIP-to-ticker resolution is best-effort.