ESSEX INVESTMENT MANAGEMENT CO LLC

Position in DAIO — Data I/O Corp

CIK 201772 BOSTON, MA

Position in DAIO

as of Jun 30, 2026 · filed Aug 6, 2026 Compact

Position Value

$293,758

+$104,917 QoQ

Shares Held

74,558

-0.1% QoQ

Ownership

0.717%

of shares outstanding

% of Portfolio

0.04%

of 13F equity value

Holder Rank

#10

of 35 holders

Holding Since

Mar 2023

14 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Technology · as of Jun 30, 2026

ESSEX INVESTMENT MANAGEMENT CO LLC holds $31,664,411 across 8 Electronic Components names. DAIO ranks #6 (0.9% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	OUST	Ouster, Inc.	226,028	$14,131,270
2	LYTS	Lsi Industries Inc	295,820	$7,862,895
3	LPTH	Lightpath Technologies Inc	285,052	$4,660,600
4	DAKT	Daktronics Inc /Sd/	216,428	$4,233,331
5	RELL	Richardson Electronics, Ltd.	16,018	$304,502
6	DAIO	Data I/O Corp This page	74,558	$293,758
7	CPSH	Cps Technologies Corp/De/	21,524	$118,812
8	APH	Amphenol Corp /De/	672	$59,243

14 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$293,758	74,558	-0.1%	Shares	Sole	2026-08-06
2026-03-31	$188,841	74,641	0.0%	Shares	Sole	2026-05-11
2025-12-31	$236,611	74,641	0.0%	Shares	Sole	2026-02-13
2025-09-30	$249,300	74,641	0.0%	Shares	Sole	2025-11-06
2025-06-30	$231,387	74,641	+70.8%	Shares	Sole	2025-08-12
2025-03-31	$107,042	43,691	+11.8%	Shares	Sole	2025-05-07
2024-12-31	$108,204	39,063	+37.6%	Shares	Sole	2025-02-07
2024-09-30	$72,946	28,384	0.0%	Shares	Sole	2024-10-10
2024-06-30	$78,339	28,384	-65.4%	Shares	Sole	2024-08-12
2024-03-31	$288,604	81,990	+28.2%	Shares	Sole	2024-05-03
2023-12-31	$187,974	63,937	-26.6%	Shares	Sole	2024-02-08
2023-09-30	$332,098	87,165	-5.5%	Shares	Sole	2023-11-09
2023-06-30	$395,520	92,196	+2.0%	Shares	Sole	2023-08-14
2023-03-31	$449,367	90,416	—	Shares	Sole	2023-05-04
No filing history on record for this holder in this stock.