ESSEX INVESTMENT MANAGEMENT CO LLC

Position in TTI — Tetra Technologies Inc

CIK 201772 BOSTON, MA

Position in TTI

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

Position Value

$6,595,323

-$529,559 QoQ

Shares Held

774,099

+1.8% QoQ

Ownership

0.572%

of shares outstanding

% of Portfolio

1.05%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Jun 2022

16 quarters on record

Voting authority Sole 52.231949660185585.ToString("F0")% Shared 0.ToString("F0")% None 47.768050339814415.ToString("F0")%

Industrials · as of Mar 31, 2026

ESSEX INVESTMENT MANAGEMENT CO LLC holds $7,711,721 across 2 Conglomerates names. TTI ranks #1 (85.5% of the industry book) .

#	Ticker	Company	Shares	Value (USD)	Open
1	TTI	Tetra Technologies Inc This page	774,099	$6,595,323
2	VMI	Valmont Industries Inc	2,794	$1,116,398

16 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$6,595,323	774,099	+1.8%	Shares	Sole	2026-05-11
2025-12-31	$7,124,882	760,393	-2.1%	Shares	Sole	2026-02-13
2025-09-30	$4,467,198	776,904	+3.3%	Shares	Sole	2025-11-06
2025-06-30	$2,526,078	751,809	-0.7%	Shares	Sole	2025-08-12
2025-03-31	$2,544,366	757,252	-0.6%	Shares	Sole	2025-05-07
2024-12-31	$2,726,717	761,653	-12.9%	Shares	Sole	2025-02-07
2024-09-30	$2,711,942	874,820	+0.3%	Shares	Sole	2024-10-10
2024-06-30	$3,018,791	872,483	+16.7%	Shares	Sole	2024-08-12
2024-03-31	$3,312,373	747,714	+1.6%	Shares	Sole	2024-05-03
2023-12-31	$3,327,538	736,181	-7.2%	Shares	Sole	2024-02-08
2023-09-30	$5,059,754	793,065	-1.3%	Shares	Sole	2023-11-09
2023-06-30	$2,716,644	803,741	+40.9%	Shares	Sole	2023-08-14
2023-03-31	$1,511,406	570,342	+16.7%	Shares	Sole	2023-05-04
2022-12-31	$1,691,306	488,817	-0.6%	Shares	Sole	2023-02-03
2022-09-30	$1,766,305	492,007	+48.1%	Shares	Sole	2022-11-14
2022-06-30	$1,348,947	332,253	—	Shares	Sole	2022-08-12
No filing history on record for this holder in this stock.