ESSEX INVESTMENT MANAGEMENT CO LLC

Position in POCI — Precision Optics Corporation, Inc.

CIK 201772 BOSTON, MA

Position in POCI

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

Position Value

$237,813

New position

Shares Held

46,630

first reported quarter

Ownership

0.426%

of shares outstanding

% of Portfolio

0.03%

of 13F equity value

Holder Rank

#10

of 31 holders

Holding Since

Jun 2026

1 quarter on record

Voting authority Sole 100% Shared 0% None 0%

Healthcare · as of Jun 30, 2026

ESSEX INVESTMENT MANAGEMENT CO LLC holds $3,160,446 across 4 Medical Instruments & Supplies names. POCI ranks #2 (7.5% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	STXS	Stereotaxis, Inc.	1,521,966	$2,617,781
2	POCI	Precision Optics Corporation, Inc. This page	46,630	$237,813
3	HBIO	Harvard Bioscience Inc	26,973	$165,883
4	NEPH	Nephros Inc	38,927	$138,969

1 filing row on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$237,813	46,630	—	Shares	Sole	2026-08-06
No filing history on record for this holder in this stock.