Company · Ownership research

GRAN TIERRA ENERGY INC. GTE

CIK 0001273441 · CUSIP 38500T200

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 38500T200 (GTE), not CUSIP 38500T900 (GTE), CUSIP 38500T950 (GTE), CUSIP 38500T101 (GTE), and does not merge CUSIPs.

This page lists the top 20 of 71 rows by value; the complete set is available through the API.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	Equinox Partners Investment Management LLC CIK 938552 · View history	$57.24M 6,381,471 shares	23.33%	0(0.00%)Unchanged	SEC filing ↗ Apr 24, 2026	▾
02	LM Asset Management Inc. CIK 2057190 · View history	$36.29M 4,045,420 shares	21.88%	+354.00K(+9.60%)Added	SEC filing ↗ May 11, 2026	▾
03	AMERICAN CENTURY COMPANIES INC CIK 748054 · View history	$14.43M 1,609,150 shares	0.01%	+66.19K(+4.30%)Added	SEC filing ↗ May 15, 2026	▾
04	D. E. Shaw & Co., Inc. CIK 1009207 · View history	$9.87M 1,100,206 shares	0.01%	+628.18K(+133.10%)Added	SEC filing ↗ May 15, 2026	▾
05	TWO SIGMA INVESTMENTS, LP CIK 1179392 · View history	$8.60M 958,914 shares	0.01%	+749.75K(+358.50%)Added	SEC filing ↗ May 15, 2026	▾
06	RENAISSANCE TECHNOLOGIES LLC CIK 1037389 · View history	$6.97M 776,680 shares	0.01%	+16.30K(+2.10%)Added	SEC filing ↗ May 14, 2026	▾
07	ARROWSTREET CAPITAL, LIMITED PARTNERSHIP CIK 1164508 · View history	$5.42M 604,377 shares	0.00%	+578.40K(+2,226.30%)Added	SEC filing ↗ May 14, 2026	▾
08	BRIDGEWAY CAPITAL MANAGEMENT, LLC CIK 1107261 · View history	$4.99M 555,916 shares	0.10%	-3.44K(-0.60%)Reduced	SEC filing ↗ May 15, 2026	▾
09	UBS Group AG CIK 1610520 · View history	$3.79M 422,944 shares	0.00%	+305.83K(+261.10%)Added	SEC filing ↗ May 5, 2026	▾
10	Connor, Clark & Lunn Investment Management Ltd. CIK 1596800 · View history	$3.66M 406,496 shares	0.01%	+109.80K(+37.00%)Added	SEC filing ↗ May 11, 2026	▾
11	CITADEL ADVISORS LLC CIK 1423053 · View history	$3.44M 383,731 shares	0.00%	+145.00K(+60.70%)Added	SEC filing ↗ May 15, 2026	▾
12	Jump Financial, LLC CIK 1831577 · View history	$3.38M 376,835 shares	0.05%	+203.67K(+117.60%)Added	SEC filing ↗ May 14, 2026	▾
13	Point72 Asset Management, L.P. CIK 1603466 · View history	$3.36M 374,387 shares	0.01%	+128.06K(+52.00%)Added	SEC filing ↗ May 15, 2026	▾
14	BNP PARIBAS FINANCIAL MARKETS CIK 1166588 · View history	$3.07M 342,720 shares	0.00%	+313.21K(+1,061.40%)Added	SEC filing ↗ May 12, 2026	▾
15	Empowered Funds, LLC CIK 1592828 · Amended · View history	$2.88M 321,592 shares	0.02%	+79.53K(+32.90%)Added	SEC filing ↗ Jun 16, 2026	▾
16	JPMORGAN CHASE & CO CIK 19617 · Amended · View history	$2.56M 277,216 shares	0.00%	+277.22KNew	SEC filing ↗ May 13, 2026	▾
17	MILLENNIUM MANAGEMENT LLC CIK 1273087 · View history	$2.24M 250,040 shares	0.00%	+78.34K(+45.60%)Added	SEC filing ↗ May 15, 2026	▾
18	MORGAN STANLEY CIK 895421 · View history	$2.23M 248,102 shares	0.00%	+123.22K(+98.70%)Added	SEC filing ↗ May 15, 2026	▾
19	DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history	$2.11M 234,845 shares	0.00%	+17.34K(+8.00%)Added	SEC filing ↗ May 7, 2026	▾
20	JANE STREET GROUP, LLC CIK 1595888 · View history	$2.04M 227,198 shares	0.00%	+12.97K(+6.10%)Added	SEC filing ↗ May 12, 2026	▾

Showing 20 / 71 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

Cancelled or null records excluded

Disclosed shares

21,863,418

Not deduplicated across managers

Disclosed value

$196.18M

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

GRAN TIERRA ENERGY INC. · Q1 2026

Explore all 71 reporting institutions.

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Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.