Company · Ownership research

OptimumBank Holdings, Inc. OPHC

CIK 0001288855 · CUSIP 68401P403

Insider tradingInitial holdingsInstitutional holders

Quarter-end disclosures, not live holdings.

Some filings reported values in thousands; those figures were scaled ×1,000 to dollars.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	RENAISSANCE TECHNOLOGIES LLC CIK 1037389 · View history	$1.35M 155,100 shares	0.00%	+49(0.00%)Added	SEC filing ↗ Nov 12, 2026	▾
02	DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history	$881.69K 101,901 shares	0.00%	+24.24K(+31.20%)Added	SEC filing ↗ Nov 4, 2026	▾
03	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$846.69K 97,087 shares	0.00%	-10.75K(-10.00%)Reduced	SEC filing ↗ Nov 6, 2026	▾
04	Cambridge Investment Research Advisors, Inc. CIK 1419186 · View history	$371.00K 42,564 shares	0.00%	+42.56KNew	SEC filing ↗ Nov 2, 2026	▾
05	STATE STREET CORP CIK 93751 · View history	$337.96K 38,757 shares	0.00%	+27.45K(+242.70%)Added	SEC filing ↗ Nov 12, 2026	▾
06	Pekin Hardy Strauss, Inc. CIK 1020317 · View history	$163.50K 18,750 shares	0.01%	0(0.00%)Unchanged	SEC filing ↗ Nov 2, 2026	▾
07	BNP PARIBAS FINANCIAL MARKETS CIK 1166588 · View history	$103.01K 11,813 shares	0.00%	+11.81KNew	SEC filing ↗ Nov 12, 2026	▾
08	ACADIAN ASSET MANAGEMENT LLC CIK 916542 · View history	$55.00K 6,481 shares	0.00%	+6.48KNew	SEC filing ↗ Nov 9, 2026	▾
09	CITIGROUP INC CIK 831001 · View history	$42.52K 4,876 shares	0.00%	+4.88KNew	SEC filing ↗ Nov 4, 2026	▾
10	BARCLAYS PLC CIK 312069 · View history	$18.30K 2,099 shares	0.00%	+2.03K(+2,898.60%)Added	SEC filing ↗ Nov 6, 2026	▾
11	UBS Group AG CIK 1610520 · View history	$16.78K 1,924 shares	0.00%	+944(+96.30%)Added	SEC filing ↗ Nov 10, 2026	▾
12	JPMORGAN CHASE & CO CIK 19617 · View history	$11.90K 1,334 shares	0.00%	+1.33KNew	SEC filing ↗ Nov 12, 2026	▾
13	FEDERATED HERMES, INC. CIK 1056288 · View history	$5.61K 643 shares	0.00%	+643New	SEC filing ↗ Nov 12, 2026	▾
14	SBI Securities Co., Ltd. CIK 1851815 · View history	$4.26K 489 shares	0.00%	0(0.00%)Unchanged	SEC filing ↗ Oct 22, 2026	▾
15	Nuveen, LLC CIK 1871926 · View history	$1.22K 137 shares	0.00%	+137New	SEC filing ↗ Nov 10, 2026	▾
16	OSAIC HOLDINGS, INC. CIK 1677044 · View history	$892.00 100 shares	0.00%	0(0.00%)Unchanged	SEC filing ↗ Nov 12, 2026	▾
17	Caitong International Asset Management Co., Ltd CIK 1963355 · View history	$140.00 16 shares	0.00%	+16New	SEC filing ↗ Oct 29, 2026	▾

Showing 17 / 17 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

Cancelled or null records excluded

Disclosed shares

484,071

Not deduplicated across managers

Disclosed value

$4.21M

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

OptimumBank Holdings, Inc. · Q3 2026

Take these holdings further.

This page includes 17 of 17 reporting institutions. Log in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.

Download CSV
Earlier quarters
Advanced screening & filtering
API & AI access

Already have an account?

＋ New accounts get free API credits to explore data beyond ownership filings.

For AI agents & developers

The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. This page lists 17 of 17 reporting institutions; totals use the complete disclosed data.

Without an account: the last 3 years, with the row caps stated on the page. A free account opens all history on file on these pages and the CSV of what a page shows. Rows beyond the caps and bulk retrieval go through the authenticated API / MCP / CLI.

MCP  https://api.akkrudata.ai/mcp

akkru_institutional_holdings
{"action":"holders","cusip":"68401P403","quarter":"2026Q3","type":"positions","page_size":100}

Connect to MCP with OAuth and follow the returned pagination. Credits and usage limits depend on the account.

MCP endpoint: https://api.akkrudata.ai/mcp
API / MCP / CLI documentation: /documents
llms.txt: /llms.txt

Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.