Who owns Amplify Energy (AMPY)
Which tracked institutional funds hold AMPY, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See AMPY company fundamentals →
Ownership as of the 2026-Q2 13F filings (latest filed 2026-09-22). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
The tracked-fund tape on AMPY is one-sided between 2026-Q1 and 2026-Q2: 13 added or opened and 43 trimmed or exited — on balance reducing.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
AMPY’s largest tracked holder by dollar value, CDC Financial, Inc., sizes it at 7.9% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 7.9pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in AMPY divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2026-Q1 and 2026-Q2, across 124 tracked filers holding AMPY, 66 increased or opened the position and 70 reduced or closed it; over the same quarter, open-market insider Form 4s were net purchases.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in AMPY between the 2026-Q1 and 2026-Q2 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 3
- VANGUARD PORTFOLIO MANAGEMENT LLC$960K
- Nuveen, LLC$709K
- MACKENZIE FINANCIAL CORP$567K
Full exits 10
- ACADIAN ASSET MANAGEMENT LLC$9M
- Truffle Hound Capital, LLC$8M
- ARROWSTREET CAPITAL, LIMITED PARTNERSHIP$5M
- CSM Advisors, LLC$5M
- Ancora Advisors LLC$1M
- 683 Capital Management, LLC$998K
Largest adds
- BlackRock, Inc.$6M
- GEODE CAPITAL MANAGEMENT, LLC$1M
- D. E. Shaw & Co., Inc.$997K
- Trexquant Investment LP$593K
- Qube Research & Technologies Ltd$584K
- STATE STREET CORP$531K
Largest trims
- CDC Financial, Inc.$6M
- MARSHALL WACE, LLP$6M
- SUSQUEHANNA INTERNATIONAL GROUP, LLP$5M
- DIMENSIONAL FUND ADVISORS LP$4M
- VANGUARD CAPITAL MANAGEMENT LLC$4M
- AMERICAN CENTURY COMPANIES INC$3M
Institutional holders
One row per tracked fund, most shares held first (every row is from one quarter; reported value breaks ties). “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding.
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| CDC Financial, Inc. | 2,587,347 | $10M | 12.2% | 2026-Q2 |
| BlackRock, Inc. added | 2,462,227 | $10M | 11.6% | 2026-Q2 |
| VANGUARD CAPITAL MANAGEMENT LLC added | 1,656,122 | $7M | 7.8% | 2026-Q2 |
| DIMENSIONAL FUND ADVISORS LP trimmed | 1,594,952 | $6M | 7.5% | 2026-Q2 |
| AMERICAN CENTURY COMPANIES INC trimmed | 1,377,845 | $5M | 6.5% | 2026-Q2 |
| GEODE CAPITAL MANAGEMENT, LLC added | 908,291 | $4M | 4.3% | 2026-Q2 |
| D. E. Shaw & Co., Inc. added | 660,670 | $3M | 3.1% | 2026-Q2 |
| Caption Management, LLC trimmed | 571,685 | $2M | 2.7% | 2026-Q2 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC added | 531,663 | $2M | 2.5% | 2026-Q2 |
| Qube Research & Technologies Ltd added | 523,566 | $2M | 2.5% | 2026-Q2 |
| MARSHALL WACE, LLP trimmed | 513,603 | $2M | 2.4% | 2026-Q2 |
| MORGAN STANLEY added | 457,764 | $2M | 2.2% | 2026-Q2 |
| STATE STREET CORP added | 398,857 | $2M | 1.9% | 2026-Q2 |
| Connor, Clark & Lunn Investment Management Ltd. added | 336,779 | $1M | 1.6% | 2026-Q2 |
| CITADEL ADVISORS LLC added | 325,757 | $1M | 1.5% | 2026-Q2 |
| Trexquant Investment LP added | 285,137 | $1M | 1.3% | 2026-Q2 |
| De Lisle Partners LLP added | 284,651 | $1M | 1.3% | 2026-Q2 |
| JACOBS LEVY EQUITY MANAGEMENT, INC added | 276,646 | $1M | 1.3% | 2026-Q2 |
| NORTHERN TRUST CORP added | 276,289 | $1M | 1.3% | 2026-Q2 |
| Empowered Funds, LLC added | 272,763 | $1M | 1.3% | 2026-Q2 |
| Inlight Wealth Management, LLC trimmed | 269,773 | $1M | 1.3% | 2026-Q2 |
| VANGUARD FIDUCIARY TRUST CO added | 242,495 | $965K | 1.1% | 2026-Q2 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 241,286 | $960K | 1.1% | 2026-Q2 |
| RBF Capital, LLC | 241,263 | $960K | 1.1% | 2026-Q2 |
| AMERIPRISE FINANCIAL INC added | 215,238 | $857K | 1.0% | 2026-Q2 |
| YACKTMAN ASSET MANAGEMENT LP trimmed | 205,000 | $816K | 1.0% | 2026-Q2 |
| Nuveen, LLC added | 178,228 | $709K | 0.8% | 2026-Q2 |
| JANE STREET GROUP, LLC trimmed | 169,042 | $673K | 0.8% | 2026-Q2 |
| Invesco Ltd. trimmed | 153,654 | $612K | 0.7% | 2026-Q2 |
| MACKENZIE FINANCIAL CORP added | 142,552 | $567K | 0.7% | 2026-Q2 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP trimmed | 142,203 | $566K | 0.7% | 2026-Q2 |
| RHUMBLINE ADVISERS added | 127,321 | $507K | 0.6% | 2026-Q2 |
| BOOTHBAY FUND MANAGEMENT, LLC added | 120,271 | $479K | 0.6% | 2026-Q2 |
| FIRST TRUST ADVISORS LP added | 116,472 | $464K | 0.5% | 2026-Q2 |
| Diametric Capital, LP trimmed | 115,903 | $461K | 0.5% | 2026-Q2 |
| Bank of New York Mellon Corp added | 109,053 | $434K | 0.5% | 2026-Q2 |
| Jump Financial, LLC new | 106,959 | $426K | 0.5% | 2026-Q2 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 103,099 | $410K | 0.5% | 2026-Q2 |
| Dalton Investments, Inc. | 89,410 | $356K | 0.4% | 2026-Q2 |
| PANAGORA ASSET MANAGEMENT INC trimmed | 87,010 | $346K | 0.4% | 2026-Q2 |
| FULLER & THALER ASSET MANAGEMENT, INC. trimmed | 78,220 | $311K | 0.4% | 2026-Q2 |
| BNP PARIBAS FINANCIAL MARKETS trimmed | 75,725 | $301K | 0.4% | 2026-Q2 |
| UBS Group AG trimmed | 71,149 | $283K | 0.3% | 2026-Q2 |
| BANK OF AMERICA CORP /DE/ trimmed | 67,337 | $268K | 0.3% | 2026-Q2 |
| RENAISSANCE TECHNOLOGIES LLC added | 65,178 | $259K | 0.3% | 2026-Q2 |
| Dynamic Technology Lab Private Ltd trimmed | 61,150 | $243K | 0.3% | 2026-Q2 |
| Vanguard Personalized Indexing Management, LLC added | 58,252 | $232K | 0.3% | 2026-Q2 |
| MILLENNIUM MANAGEMENT LLC trimmed | 57,986 | $231K | 0.3% | 2026-Q2 |
| Aster Capital Management (DIFC) Ltd | 54,889 | $176K | 0.2% | 2026-Q2 |
| SEI INVESTMENTS CO new | 52,565 | $209K | 0.2% | 2026-Q2 |
| Ethic Inc. trimmed | 51,999 | $207K | 0.2% | 2026-Q2 |
| GOLDMAN SACHS GROUP INC trimmed | 50,774 | $202K | 0.2% | 2026-Q2 |
| SIMPLEX TRADING, LLC trimmed | 50,475 | $201K | 0.2% | 2026-Q2 |
| CANADA PENSION PLAN INVESTMENT BOARD added | 46,300 | $184K | 0.2% | 2026-Q2 |
| Russell Investments Group, Ltd. trimmed | 45,787 | $182K | 0.2% | 2026-Q2 |
| TWO SIGMA INVESTMENTS, LP added | 45,672 | $182K | 0.2% | 2026-Q2 |
| WELLS FARGO & COMPANY/MN added | 41,020 | $163K | 0.2% | 2026-Q2 |
| Lakewood Asset Management LLC added | 39,375 | $157K | 0.2% | 2026-Q2 |
| IMC-Chicago, LLC new | 38,427 | $153K | 0.2% | 2026-Q2 |
| Point72 Asset Management, L.P. trimmed | 35,865 | $143K | 0.2% | 2026-Q2 |
| DEUTSCHE BANK AG\ added | 34,922 | $139K | 0.2% | 2026-Q2 |
| ELEMENT POINTE ADVISORS, LLC | 34,500 | $137K | 0.2% | 2026-Q2 |
| O'SHAUGHNESSY ASSET MANAGEMENT, LLC trimmed | 32,397 | $129K | 0.2% | 2026-Q2 |
| Federation des caisses Desjardins du Quebec | 31,350 | $125K | 0.1% | 2026-Q2 |
| XTX Topco Ltd added | 30,752 | $122K | 0.1% | 2026-Q2 |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 29,709 | $119K | 0.1% | 2026-Q2 |
| FRANKLIN RESOURCES INC | 25,654 | $102K | 0.1% | 2026-Q2 |
| RITHOLTZ WEALTH MANAGEMENT trimmed | 22,683 | $90K | 0.1% | 2026-Q2 |
| FMR LLC added | 21,620 | $86K | 0.1% | 2026-Q2 |
| Ellevest, Inc. trimmed | 21,457 | $85K | 0.1% | 2026-Q2 |
| PRELUDE CAPITAL MANAGEMENT, LLC trimmed | 21,421 | $85K | 0.1% | 2026-Q2 |
| GROUP ONE TRADING LLC added | 21,306 | $85K | 0.1% | 2026-Q2 |
| Centiva Capital, LP trimmed | 20,896 | $83K | 0.1% | 2026-Q2 |
| Engineers Gate Manager LP trimmed | 20,539 | $82K | 0.1% | 2026-Q2 |
| PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO added | 19,524 | $78K | 0.1% | 2026-Q2 |
| Pathstone Holdings, LLC trimmed | 17,219 | $69K | 0.1% | 2026-Q2 |
| CITIGROUP INC added | 16,496 | $66K | 0.1% | 2026-Q2 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. added | 16,440 | $65K | 0.1% | 2026-Q2 |
| Vanguard Global Advisers, LLC | 16,110 | $64K | 0.1% | 2026-Q2 |
| WINTON GROUP Ltd trimmed | 15,795 | $63K | 0.1% | 2026-Q2 |
| JPMORGAN CHASE & CO trimmed | 15,533 | $63K | 0.1% | 2026-Q2 |
| Sanctuary Advisors, LLC added | 14,962 | $60K | 0.1% | 2026-Q2 |
| ALLIANCEBERNSTEIN L.P. trimmed | 14,800 | $92K | 0.1% | 2026-Q2 |
| PRUDENTIAL FINANCIAL INC trimmed | 14,505 | $58K | 0.1% | 2026-Q2 |
| NEW YORK STATE COMMON RETIREMENT FUND trimmed | 12,700 | $51K | 0.1% | 2026-Q2 |
| GODSEY & GIBB, INC | 11,351 | $45K | 0.1% | 2026-Q2 |
| Police & Firemen's Retirement System of New Jersey added | 11,285 | $45K | 0.1% | 2026-Q2 |
| Creative Planning trimmed | 10,912 | $43K | 0.1% | 2026-Q2 |
| Quantinno Capital Management LP trimmed | 10,084 | $40K | 0.0% | 2026-Q2 |
| BARCLAYS PLC trimmed | 9,164 | $36K | 0.0% | 2026-Q2 |
| LOM Asset Management Ltd added | 9,000 | $36K | 0.0% | 2026-Q2 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 8,646 | $34K | 0.0% | 2026-Q2 |
| ROYAL BANK OF CANADA added | 7,543 | $31K | 0.0% | 2026-Q2 |
| Farther Finance Advisors, LLC added | 5,532 | $22K | 0.0% | 2026-Q2 |
| Rockefeller Capital Management L.P. trimmed | 4,374 | $17K | 0.0% | 2026-Q2 |
| Persistent Asset Partners Ltd new | 3,968 | $16K | 0.0% | 2026-Q2 |
| Legal & General Group Plc trimmed | 3,455 | $14K | 0.0% | 2026-Q2 |
| Ameritas Investment Partners, Inc. added | 3,240 | $13K | 0.0% | 2026-Q2 |
| Tower Research Capital LLC (TRC) trimmed | 2,119 | $8K | 0.0% | 2026-Q2 |
| EverSource Wealth Advisors, LLC added | 1,503 | $6K | 0.0% | 2026-Q2 |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.