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ESSEX INVESTMENT MANAGEMENT CO LLC

Position in MTDR — Matador Resources Co

CIK 201772 BOSTON, MA

Position in MTDR

as of Jun 30, 2026 · filed Aug 6, 2026
Position Value
$1,880,787
-$646,286 QoQ
Shares Held
37,782
-5.5% QoQ
Ownership
0.031%
of shares outstanding
% of Portfolio
0.25%
of 13F equity value
Holder Rank
#179
of 489 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority Sole 61% Shared 0% None 39%

Common Shares in MTDR Over Time

Shares Held

Position Value (USD)

Position in Oil & Gas E&P

Energy · as of Jun 30, 2026

ESSEX INVESTMENT MANAGEMENT CO LLC holds $1,921,361 across 2 Oil & Gas E&P names. MTDR ranks #1 (97.9% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 MTDR
Matador Resources Co
This page
37,782 $1,880,787

All Filings in MTDR

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26 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $1,880,787 37,782
2026-03-31 $2,527,073 39,998
2025-12-31 $1,663,478 39,196
2025-09-30 $1,846,757 41,103
2025-06-30 $1,892,527 39,659
2025-03-31 $2,042,476 39,978
2024-12-31 $2,263,621 40,235
2024-09-30 $2,187,872 44,271
2024-06-30 $2,630,267 44,132
2024-03-31 $2,506,011 37,532
2023-12-31 $2,124,460 37,363
2023-09-30 $2,497,446 41,988
2023-06-30 $2,230,401 42,630
2023-03-31 $1,922,296 40,342
2022-12-31 $1,969,284 34,404
2022-09-30 $1,695,420 34,657
2022-06-30 $1,569,104 33,679
2022-03-31 $2,509,503 47,367
2021-12-31 $2,528,761 68,493
2021-09-30 $2,698,177 70,930
2021-06-30 $3,461,965 96,139
2021-03-31 $2,432,632 103,737
2020-12-31 $1,369,569 113,563
2020-09-30 $1,090,633 132,038
2020-06-30 $1,088,850 128,100
2020-03-31 $327,064 131,881