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Grantham, Mayo, Van Otterloo & Co. LLC

Position in GPOR — Gulfport Energy Corp

CIK 1352662 Boston, MA

Position in GPOR

as of Jun 30, 2026 · filed Aug 13, 2026
Position Value
$17,342,830
+$4,323,024 QoQ
Shares Held
102,197
+66.1% QoQ
Ownership
0.578%
of shares outstanding
% of Portfolio
0.04%
of 13F equity value
Holder Rank
#45
of 291 holders
Holding Since
Mar 2020
22 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in GPOR Over Time

Shares Held

Position Value (USD)

Position in Oil & Gas E&P

Energy · as of Jun 30, 2026

Grantham, Mayo, Van Otterloo & Co. LLC holds $372,793,269 across 19 Oil & Gas E&P names. GPOR ranks #10 (4.7% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in GPOR

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22 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $17,342,830 102,197
2026-03-31 $13,019,806 61,539
2025-12-31 $16,314,527 78,439
2025-09-30 $17,326,844 95,739
2025-06-30 $18,535,602 92,139
2025-03-31 $9,877,085 53,639
2024-12-31 $15,258,943 82,839
2024-09-30 $12,598,222 83,239
2024-06-30 $12,309,520 81,520
2024-03-31 $13,135,924 82,038
2023-12-31 $8,248,143 61,923
2023-09-30 $410,563 3,460
2023-06-30 $278,960 2,655
2023-03-31 $1,032,000 12,900
2022-12-31 $2,709,289 36,791
2022-09-30 $4,449,021 50,391
2022-06-30 $4,388,236 55,191
2022-03-31 $2,210,829 24,614
2021-12-31 $1,684,349 23,384
2021-09-30 $1,922,398 23,384
2021-06-30 $1,770,839 27,370
2020-03-31 428,500