Public ownership evidence

Data I/O Corp (DAIO) Ownership Disclosures

Read DAIO insider transactions, institutional 13F filings and Congressional disclosures with report dates, public availability and original receipts.

As of 2026-10-10T12:08:28.848Z

Recent Form 4 activity

No records are available for this view.

90-day public availability window, up to 50 records.

Recent institutional filing receipts

These are raw ticker-matched positions in recent 13F receipts, including amendments. They are not deduplicated current ownership totals. Open the manager profile to inspect its effective filing book.

XTX Topco Ltd2026-06-302026-08-1515,284$60,219None
JANE STREET GROUP, LLC2026-06-302026-08-152,496$9,834None
JANE STREET GROUP, LLC2026-06-302026-08-1515,231$60,010None
HRT FINANCIAL LP2026-06-302026-08-1511,288$44,000None
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-302026-08-1548,548$191,279None
CITADEL ADVISORS LLC2026-06-302026-08-1586,869$342,264None
GROUP ONE TRADING LLC2026-06-302026-08-156,450$25,413None
BARCLAYS PLC2026-06-302026-08-1550$197None
VANGUARD CAPITAL MANAGEMENT LLC2026-06-302026-08-14323,672$1,275,268None
Vanguard Global Advisers, LLC2026-06-302026-08-145,124$20,189None
Steward Partners Investment Advisory, LLC2026-06-302026-08-1443,472$171,280None
Kanen Wealth Management LLC2026-06-302026-08-14839,421$3,287,675None
UBS Group AG2026-06-302026-08-144,222$16,635None
ACADIAN ASSET MANAGEMENT LLC2026-06-302026-08-14108,582$427,000None
RENAISSANCE TECHNOLOGIES LLC2026-06-302026-08-14392,443$1,546,225None
VANGUARD FIDUCIARY TRUST CO2026-06-302026-08-1458,643$231,053None
NORTHERN TRUST CORP2026-06-302026-08-1421,827$85,998None
HUNTINGTON NATIONAL BANK2026-06-302026-08-141$4None
SIMPLEX TRADING, LLC2026-06-302026-08-134,279$16,859None
GEODE CAPITAL MANAGEMENT, LLC2026-06-302026-08-1315,451$60,876None
GEODE CAPITAL MANAGEMENT, LLC2026-06-302026-08-1399,606$392,544None
NewEdge Advisors, LLC2026-06-302026-08-1322,402$88,264None
Tower Research Capital LLC (TRC)2026-06-302026-08-12314$1,237None
DIMENSIONAL FUND ADVISORS LP2026-06-302026-08-123,073$12,108None
DIMENSIONAL FUND ADVISORS LP2026-06-302026-08-12137,606$542,168None
BlackRock, Inc.2026-06-302026-08-0817,015$67,039None
Point Nemo Capital, LLC2026-06-302026-08-08500$1,970None
LPL Financial LLC2026-06-302026-08-0821,000$82,740None
STATE STREET CORP2026-06-302026-08-0816,170$63,710None
Legato Capital Management LLC2026-06-302026-08-0717,550$69,147None
ESSEX INVESTMENT MANAGEMENT CO LLC2026-06-302026-08-0774,558$293,759None
Caitong International Asset Management Co., Ltd2026-06-302026-08-064$16None
CITIGROUP INC2026-06-302026-08-047,176$28,273None
Kovack Advisors, Inc.2026-06-302026-07-30285,481$1,107,666None
THOMPSON DAVIS & CO., INC.2026-06-302026-07-3023,533$92,720None
JAMES INVESTMENT RESEARCH, INC.2026-06-302026-07-2522,402$88,264None
SBI Securities Co., Ltd.2026-06-302026-07-241$4None
Penbrook Management LLC2026-06-302026-07-24355,850$1,402,049None

90-day public filing window, up to 50 source positions.

XTX Topco Ltd ↗JANE STREET GROUP, LLC ↗JANE STREET GROUP, LLC ↗HRT FINANCIAL LP ↗SUSQUEHANNA INTERNATIONAL GROUP, LLP ↗CITADEL ADVISORS LLC ↗GROUP ONE TRADING LLC ↗BARCLAYS PLC ↗VANGUARD CAPITAL MANAGEMENT LLC ↗Vanguard Global Advisers, LLC ↗

Recent Congressional disclosures

No records are available for this view.

Bounded public source preview, up to 25 disclosed events.

How to read the disclosure dates

The tables report different things: insider transactions, institutional positions and Congressional transaction ranges. Read each table with its source dates and units. They cannot be added into a combined ownership percentage.

  1. Company insiders

    SEC Form 4 purchases, sales and awards report transactions and their public filing availability.

  2. Institutional managers

    13F reports disclose delayed quarter-end positions. They are not a record of trades between quarters.

  3. Congressional filers

    Periodic transaction reports disclose transaction dates and amount brackets. Public filing dates determine what researchers could know.

Institutional source directory ↗Congressional source directory ↗

Read the transaction codes

Awards use transaction code A, purchases P and sales S. An acquisition from an award is not the same as an open-market purchase. Joint filers may share a transaction. Use original receipts and availability dates to interpret the events.