OCC
Optical Cable CorpCompany with tickers: OCC
CIK
1000230
CUSIP
683827208
Shares Outstanding
8,831,598
13F Activity (30d)
30 filings
28 filers
Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.
Holders: 38
Total Value: $14,108,963
Total Shares: 1,710,179
Institutional Ownership Trend
25 quarters
Holder Concentration
Across 38 13F filers · Δ vs Dec 31, 2025Top Holder
24.4%
−1.5 pts
Top 5
56.8%
−11.8 pts
Top 10
75.6%
−7.2 pts
HHI
1,007
Broadly held−312
Quarterly Activity
vs Dec 31, 2025
New
10
Increased
9
Decreased
6
Sold Out
5
Unchanged
13
Holder count:
+5
Institutional value:
+97.7%
Shares held:
+6.7%
Top Buyers
vs Dec 31, 2025| Institution | Added | Now Holds | Open |
|---|---|---|---|
| Mega TWO SIGMA INVESTMENTS, LP | +20,675 | 70,669 | |
| Mega MORGAN STANLEY | +17,356 | 18,926 | |
| Mega UBS Group AG | +13,622 | 22,448 | |
| Mid GSA CAPITAL PARTNERS LLP | +12,564 | 32,725 | |
| Mega GEODE CAPITAL MANAGEMENT, LLC | +7,872 | 72,428 |
Top Sellers
vs Dec 31, 2025| Institution | Sold | Now Holds | Open |
|---|---|---|---|
| Mega DIMENSIONAL FUND ADVISORS LP | −100,721 | 168,211 | |
| Large RENAISSANCE TECHNOLOGIES LLC | −17,701 | 83,303 | |
| Small Legacy Financial Advisors, Inc. | −10,000 | 33,393 | |
| Mega ROYAL BANK OF CANADA | −1,795 | 254 | |
| Mega BlackRock, Inc. | −396 | 37,348 |
Top New Positions
vs Dec 31, 2025| Institution | Acquired | Value (USD) | Open |
|---|---|---|---|
| Mega VANGUARD CAPITAL MANAGEMENT LLC | 211,487 | $1,744,767 | |
| Large SEI INVESTMENTS CO | 91,364 | $753,753 | |
| Small Informed Momentum Co LLC | 75,074 | $619,360 | |
| Mega VANGUARD FIDUCIARY TRUST CO | 32,494 | $268,075 | |
| Large HRT FINANCIAL LP | 17,437 | $143,855 |
Top Sold-Out Positions
vs Dec 31, 2025| Institution | Previously Held | Last Value (USD) | Open |
|---|---|---|---|
| Mega VANGUARD GROUP INC | 251,083 | $1,117,319 | |
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | 32,653 | $145,305 | |
| Large MARSHALL WACE, LLP | 20,696 | $92,097 | |
| Small Dynamic Technology Lab Private Ltd | 12,775 | $56,848 | |
| Mega BANK OF AMERICA CORP /DE/ | 64 | $284 |
| Holder | Value (USD) | % of 13F | Shares | Type | Discretion | Filed | Open | |||
|---|---|---|---|---|---|---|---|---|---|---|
| Mid GENDELL JEFFREY L | $3,443,880 | 24.41% | 417,440 | Shares | Defined | 2026-05-15 | ||||
| Mega VANGUARD CAPITAL MANAGEMENT LLC | $1,744,767 | 12.37% | 211,487 | Shares | Defined | 2026-05-15 | ||||
| Mega DIMENSIONAL FUND ADVISORS LP | $1,387,740 | 9.84% | 168,211 | Shares | Sole | 2026-05-07 | ||||
| Large SEI INVESTMENTS CO | $753,753 | 5.34% | 91,364 | Shares | Sole | 2026-05-13 | ||||
| Large RENAISSANCE TECHNOLOGIES LLC | $687,249 | 4.87% | 83,303 | Shares | Sole | 2026-05-14 | ||||
| Small Informed Momentum Co LLC | $619,360 | 4.39% | 75,074 | Shares | Sole | 2026-05-13 | ||||
| Mega GEODE CAPITAL MANAGEMENT, LLC | $597,531 | 4.24% | 72,428 | Shares | Defined | 2026-05-15 | ||||
| Mega TWO SIGMA INVESTMENTS, LP | $583,019 | 4.13% | 70,669 | Shares | Sole | 2026-05-15 | ||||
| Mega JANE STREET GROUP, LLC | $451,934 | 3.20% | 54,780 | Shares | Defined | 2026-05-12 | ||||
| Mid BRIDGEWAY CAPITAL MANAGEMENT, LLC | $398,211 | 2.82% | 48,268 | Shares | Sole | 2026-05-15 | ||||
| Mega BlackRock, Inc. | $308,121 | 2.18% | 37,348 | Shares | Sole | 2026-05-13 | ||||
| Mega STATE STREET CORP | $303,377 | 2.15% | 36,773 | Shares | Defined | 2026-05-15 | ||||
| Small Legacy Financial Advisors, Inc. | $275,492 | 1.95% | 33,393 | Shares | Sole | 2026-04-30 | ||||
| Mid GSA CAPITAL PARTNERS LLP | $269,981 | 1.91% | 32,725 | Shares | Sole | 2026-05-08 | ||||
| Mega VANGUARD FIDUCIARY TRUST CO Bank | $268,075 | 1.90% | 32,494 | Shares | Defined | 2026-05-08 | ||||
| Small Round Rock Advisors LLC | $257,994 | 1.83% | 31,272 | Shares | Sole | 2026-05-15 | ||||
| Small SHIKIAR ASSET MANAGEMENT INC | $232,237 | 1.65% | 28,150 | Shares | Sole | 2026-04-23 | ||||
| Mega UBS Group AG | $185,195 | 1.31% | 22,448 | Shares | Defined | 2026-05-05 | ||||
| Mid RBF Capital, LLC | $164,991 | 1.17% | 19,999 | Shares | Sole | 2026-05-18 | ||||
| Mega MORGAN STANLEY | $156,139 | 1.11% | 18,926 | Shares | Defined | 2026-05-15 | ||||
| Large MERCER GLOBAL ADVISORS INC /ADV | $148,500 | 1.05% | 18,000 | Shares | Sole | 2026-05-15 | ||||
| Mid Clearstead Advisors, LLC | $147,658 | 1.05% | 17,898 | Shares | Sole | 2026-05-06 | ||||
| Large HRT FINANCIAL LP | $143,855 | 1.02% | 17,437 | Shares | Defined | 2026-05-14 | ||||
| Small Hilltop Holdings Inc. | $115,500 | 0.82% | 14,000 | Shares | Defined | 2026-05-14 | ||||
| Large Centiva Capital, LP | $107,530 | 0.76% | 13,034 | Shares | Sole | 2026-05-14 | ||||
| Mega NORTHERN TRUST CORP Bank | $103,702 | 0.74% | 12,570 | Shares | Defined | 2026-05-14 | ||||
| Large MACKENZIE FINANCIAL CORP | $103,347 | 0.73% | 12,527 | Shares | Sole | 2026-05-13 | ||||
| Mid Virtu Financial LLC | $93,637 | 0.66% | 11,350 | Shares | Defined | 2026-05-14 | ||||
| Mega Vanguard Global Advisers, LLC | $34,377 | 0.24% | 4,167 | Shares | Defined | 2026-05-08 | ||||
| Mega WELLS FARGO & COMPANY/MN | $8,250 | 0.06% | 1,000 | Shares | Defined | 2026-05-11 | ||||
| Mid Geneos Wealth Management Inc. | $6,831 | 0.05% | 828 | Shares | Sole | 2026-05-05 | ||||
| Mega ROYAL BANK OF CANADA Bank | $2,095 | 0.01% | 254 | Shares | Defined | 2026-05-15 | ||||
| Mid Tower Research Capital LLC (TRC) | $2,029 | 0.01% | 246 | Shares | Defined | 2026-05-15 | ||||
| Large OSAIC HOLDINGS, INC. | $1,031 | 0.01% | 125 | Shares | Defined | 2026-05-15 | ||||
| Mid SBI Securities Co., Ltd. Broker-Dealer | $990 | 0.01% | 120 | Shares | Defined | 2026-04-28 | ||||
| Large NATIONAL BANK OF CANADA /FI/ Bank | $569 | 0.00% | 69 | Shares | Defined | 2026-05-15 | ||||
| Mega CITIGROUP INC | $8 | 0.00% | 1 | Shares | Defined | 2026-05-11 | ||||
| Small Caitong International Asset Management Co., Ltd | $8 | 0.00% | 1 | Shares | Sole | 2026-05-11 | ||||
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