Company · Ownership research

Amplify Energy Corp. AMPY

CIK 0001533924 · CUSIP 03212B103

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 03212B103 (AMPY), not CUSIP 03212B903 (AMPY), CUSIP 03212B953 (AMPY), and does not merge CUSIPs.

This page lists the top 20 of 133 rows by value; the complete set is available through the API.

Some filings reported values in thousands; those figures were scaled ×1,000 to dollars.

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	CDC Financial, Inc. CIK 2077836 · View history	$16.15M 2,587,347 shares	13.37%	-1.00M(-27.90%)Reduced	SEC filing ↗ May 15, 2026	▾
02	VANGUARD CAPITAL MANAGEMENT LLC CIK 2100119 · Amended · View history	$10.19M 1,633,142 shares	0.00%	—	SEC filing ↗ May 15, 2026	▾
03	DIMENSIONAL FUND ADVISORS LP CIK 354204 · View history	$10.19M 1,632,763 shares	0.00%	-447.50K(-21.50%)Reduced	SEC filing ↗ May 7, 2026	▾
04	AMERICAN CENTURY COMPANIES INC CIK 748054 · View history	$8.98M 1,438,807 shares	0.00%	+25.36K(+1.80%)Added	SEC filing ↗ May 15, 2026	▾
05	ACADIAN ASSET MANAGEMENT LLC CIK 916542 · View history	$8.59M 1,377,819 shares	0.01%	+692.28K(+101.00%)Added	SEC filing ↗ May 13, 2026	▾
06	MARSHALL WACE, LLP CIK 1318757 · View history	$7.84M 1,257,152 shares	0.01%	+302.43K(+31.70%)Added	SEC filing ↗ May 15, 2026	▾
07	Truffle Hound Capital, LLC CIK 1595862 · View history	$7.80M 1,250,000 shares	4.78%	0(0.00%)Unchanged	SEC filing ↗ May 7, 2026	▾
08	SUSQUEHANNA INTERNATIONAL GROUP, LLP CIK 1446194 · View history	$5.58M 894,869 shares	0.01%	+444.32K(+98.60%)Added	SEC filing ↗ May 15, 2026	▾
09	Caption Management, LLC CIK 1706766 · View history	$5.45M 873,591 shares	0.26%	+873.59KNew	SEC filing ↗ May 15, 2026	▾
10	ARROWSTREET CAPITAL, LIMITED PARTNERSHIP CIK 1164508 · View history	$5.39M 863,815 shares	0.00%	+863.82KNew	SEC filing ↗ May 14, 2026	▾
11	CSM Advisors, LLC CIK 1863523 · View history	$4.68M 749,920 shares	0.12%	-168.09K(-18.30%)Reduced	SEC filing ↗ May 15, 2026	▾
12	BlackRock, Inc. CIK 2012383 · View history	$3.60M 576,143 shares	0.00%	+3.66K(+0.60%)Added	SEC filing ↗ May 13, 2026	▾
13	MILLENNIUM MANAGEMENT LLC CIK 1273087 · View history	$3.00M 481,130 shares	0.00%	+340.87K(+243.00%)Added	SEC filing ↗ May 15, 2026	▾
14	BRIDGEWAY CAPITAL MANAGEMENT, LLC CIK 1107261 · View history	$2.67M 427,481 shares	0.05%	+23.16K(+5.70%)Added	SEC filing ↗ May 15, 2026	▾
15	GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history	$2.59M 415,423 shares	0.00%	-3.94K(-0.90%)Reduced	SEC filing ↗ May 15, 2026	▾
16	MORGAN STANLEY CIK 895421 · View history	$2.55M 408,265 shares	0.00%	+7.25K(+1.80%)Added	SEC filing ↗ May 15, 2026	▾
17	Invesco Ltd. CIK 914208 · Amended · View history	$2.17M 348,019 shares	0.00%	+228.06K(+190.10%)Added	SEC filing ↗ May 12, 2026	▾
18	D. E. Shaw & Co., Inc. CIK 1009207 · View history	$2.01M 322,029 shares	0.00%	+215.92K(+203.50%)Added	SEC filing ↗ May 15, 2026	▾
19	Inlight Wealth Management, LLC CIK 1731795 · View history	$1.70M 273,034 shares	0.63%	-9.26K(-3.30%)Reduced	SEC filing ↗ May 4, 2026	▾
20	De Lisle Partners LLP CIK 2011184 · View history	$1.65M 264,651 shares	0.20%	+264.65KNew	SEC filing ↗ May 13, 2026	▾

Showing 20 / 133 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

133

Cancelled or null records excluded

Disclosed shares

24,806,662

Not deduplicated across managers

Disclosed value

$154.81M

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.

Amplify Energy Corp. · Q1 2026

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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.