ESSEX INVESTMENT MANAGEMENT CO LLC

Position in MIR — Mirion Technologies, Inc.

CIK 201772 BOSTON, MA

Position in MIR

as of Mar 31, 2026 · filed May 11, 2026 Compact

Position Value

$5,746,354

-$1,358,149 QoQ

Shares Held

309,110

+1.9% QoQ

Ownership

0.123%

of shares outstanding

% of Portfolio

0.92%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Sep 2023

11 quarters on record

Voting authority Sole 49.65740351331242.ToString("F0")% Shared 0.ToString("F0")% None 50.34259648668758.ToString("F0")%

Industrials · as of Mar 31, 2026

ESSEX INVESTMENT MANAGEMENT CO LLC holds $32,520,382 across 13 Specialty Industrial Machinery names. MIR ranks #4 (17.7% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	GHM	Graham Corp	128,294	$10,124,962
2	AMSC	American Superconductor Corp /De/	227,558	$7,702,838
3	GEV	GE Vernova Inc.	8,319	$7,261,655
4	MIR	Mirion Technologies, Inc. This page	309,110	$5,746,354
5	XYL	Xylem Inc.	10,463	$1,250,328
6	BWEN	Broadwind, Inc.	94,788	$197,159
7	OPTT	Ocean Power Technologies, Inc.	205,193	$71,817
8	FLS	Flowserve Corp	697	$51,236

11 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$5,746,354	309,110	+1.9%	Shares	Sole	2026-05-11
2025-12-31	$7,104,503	303,352	-2.3%	Shares	Sole	2026-02-13
2025-09-30	$7,222,230	310,500	+3.6%	Shares	Sole	2025-11-06
2025-06-30	$6,455,038	299,816	-0.7%	Shares	Sole	2025-08-12
2025-03-31	$4,377,158	301,873	-0.8%	Shares	Sole	2025-05-07
2024-12-31	$5,309,249	304,255	-13.4%	Shares	Sole	2025-02-07
2024-09-30	$3,890,861	351,478	+0.3%	Shares	Sole	2024-10-10
2024-06-30	$3,764,348	350,498	+35.1%	Shares	Sole	2024-08-12
2024-03-31	$2,950,515	259,500	+0.6%	Shares	Sole	2024-05-03
2023-12-31	$2,645,248	258,073	-0.4%	Shares	Sole	2024-02-08
2023-09-30	$1,936,313	259,212	—	Shares	Sole	2023-11-09
No filing history on record for this holder in this stock.