Who owns Northern Oil and Gas, Inc. (NOG)
Which tracked institutional funds hold NOG, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See NOG company fundamentals →
Ownership as of the 2026-Q1 13F filings (latest filed 2026-05-18). 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 NOG is one-sided between 2025-Q4 and 2026-Q1: 162 added or opened and 36 trimmed or exited — on balance accumulating.
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
NOG’s largest tracked holder by dollar value, BlackRock, Inc., sizes it at 0.0% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.0pp gap the other way — the median holder sizes NOG more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in NOG 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 2025-Q4 and 2026-Q1, across 357 tracked filers holding NOG, 216 increased or opened the position and 125 reduced or closed it; over the same quarter, there were no open-market insider Form 4s.
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 NOG between the 2025-Q4 and 2026-Q1 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 35
- VANGUARD PORTFOLIO MANAGEMENT LLC$192M
- VANGUARD CAPITAL MANAGEMENT LLC$132M
- VANGUARD FIDUCIARY TRUST CO$20M
- HSBC HOLDINGS PLC$8M
- MARSHALL WACE, LLP$8M
- SEVEN GRAND MANAGERS, LLC$7M
Full exits 16
- VANGUARD GROUP INC$217M
- Point72 Asset Management, L.P.$12M
- SG Americas Securities, LLC$9M
- STANSBERRY ASSET MANAGEMENT, LLC$4M
- DARK FOREST CAPITAL MANAGEMENT LP$4M
- ExodusPoint Capital Management, LP$4M
Largest adds
- STATE STREET CORP$80M
- Invesco Ltd.$63M
- AMERICAN CENTURY COMPANIES INC$53M
- FMR LLC$42M
- DIMENSIONAL FUND ADVISORS LP$30M
- UBS Group AG$26M
Largest trims
- WESTWOOD HOLDINGS GROUP INC$35M
- Allspring Global Investments Holdings, LLC$16M
- MILLENNIUM MANAGEMENT LLC$15M
- D. E. Shaw & Co., Inc.$6M
- ALLIANCEBERNSTEIN L.P.$2M
- Susquehanna Portfolio Strategies, LLC$2M
Institutional holders
One row per tracked fund, largest reported value first. “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding. Rows marked stale are from an earlier filing than the security’s latest quarter — that fund is absent from the newest snapshot (position exited, or reported under a different name).
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| BlackRock, Inc. trimmed | 10,889,525 | $318M | 9.3% | 2026-Q1 |
| AMERICAN CENTURY COMPANIES INC trimmed | 7,974,272 | $233M | 6.8% | 2026-Q1 |
| STATE STREET CORP added | 6,539,968 | $194M | 5.7% | 2026-Q1 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 6,582,052 | $192M | 5.7% | 2026-Q1 |
| FMR LLC trimmed | 6,247,325 | $183M | 5.4% | 2026-Q1 |
| Invesco Ltd. added | 5,367,338 | $157M | 4.6% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 4,504,117 | $132M | 3.9% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP trimmed | 4,146,203 | $121M | 3.6% | 2026-Q1 |
| UBS Group AG added | 2,614,430 | $76M | 2.2% | 2026-Q1 |
| ALLIANCEBERNSTEIN L.P. trimmed | 3,433,394 | $74M | 2.2% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 2,442,844 | $71M | 2.1% | 2026-Q1 |
| MORGAN STANLEY added | 2,397,831 | $70M | 2.1% | 2026-Q1 |
| Nuveen, LLC added | 1,734,767 | $51M | 1.5% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 1,682,043 | $49M | 1.4% | 2026-Q1 |
| Hood River Capital Management LLC added | 1,586,599 | $46M | 1.4% | 2026-Q1 |
| Bank of New York Mellon Corp trimmed | 1,460,075 | $43M | 1.3% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC added | 1,394,065 | $41M | 1.2% | 2026-Q1 |
| VOYA INVESTMENT MANAGEMENT LLC added | 1,316,298 | $38M | 1.1% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ added | 1,245,639 | $36M | 1.1% | 2026-Q1 |
| WESTWOOD HOLDINGS GROUP INC trimmed | 1,223,992 | $36M | 1.1% | 2026-Q1 |
| DEPRINCE RACE & ZOLLO INC trimmed | 1,169,115 | $34M | 1.0% | 2026-Q1 |
| FIRST TRUST ADVISORS LP added | 1,167,971 | $34M | 1.0% | 2026-Q1 |
| NORTHERN TRUST CORP added | 1,023,200 | $30M | 0.9% | 2026-Q1 |
| KENNEDY CAPITAL MANAGEMENT LLC added | 928,871 | $27M | 0.8% | 2026-Q1 |
| Tributary Capital Management, LLC trimmed | 830,407 | $24M | 0.7% | 2026-Q1 |
| NEW YORK STATE COMMON RETIREMENT FUND added | 824,605 | $24M | 0.7% | 2026-Q1 |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. trimmed | 818,609 | $24M | 0.7% | 2026-Q1 |
| ROYAL BANK OF CANADA trimmed | 812,323 | $24M | 0.7% | 2026-Q1 |
| PALISADE CAPITAL MANAGEMENT, LP trimmed | 778,140 | $23M | 0.7% | 2026-Q1 |
| RAYMOND JAMES FINANCIAL INC added | 737,255 | $22M | 0.6% | 2026-Q1 |
| WELLS FARGO & COMPANY/MN added | 693,604 | $20M | 0.6% | 2026-Q1 |
| JPMORGAN CHASE & CO added | 657,946 | $20M | 0.6% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 667,305 | $20M | 0.6% | 2026-Q1 |
| SILVERCREST ASSET MANAGEMENT GROUP LLC added | 640,258 | $19M | 0.5% | 2026-Q1 |
| CITIGROUP INC added | 613,771 | $18M | 0.5% | 2026-Q1 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC added | 598,233 | $17M | 0.5% | 2026-Q1 |
| Requisite Capital Management, LLC | 565,547 | $17M | 0.5% | 2026-Q1 |
| Penn Capital Management Company, LLC added | 560,570 | $16M | 0.5% | 2026-Q1 |
| NOMURA HOLDINGS INC added | 553,996 | $16M | 0.5% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC trimmed | 538,194 | $16M | 0.5% | 2026-Q1 |
| PRINCIPAL FINANCIAL GROUP INC added | 506,704 | $15M | 0.4% | 2026-Q1 |
| VICTORY CAPITAL MANAGEMENT INC trimmed | 491,797 | $14M | 0.4% | 2026-Q1 |
| MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC trimmed | 460,168 | $13M | 0.4% | 2026-Q1 |
| SEI INVESTMENTS CO added | 450,251 | $13M | 0.4% | 2026-Q1 |
| Allspring Global Investments Holdings, LLC trimmed | 467,493 | $13M | 0.4% | 2026-Q1 |
| MetLife Investment Management, LLC added | 415,320 | $12M | 0.4% | 2026-Q1 |
| Empowered Funds, LLC added | 403,127 | $12M | 0.3% | 2026-Q1 |
| HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC trimmed | 388,491 | $11M | 0.3% | 2026-Q1 |
| Public Sector Pension Investment Board added | 373,277 | $11M | 0.3% | 2026-Q1 |
| ENVESTNET ASSET MANAGEMENT INC added | 340,493 | $10M | 0.3% | 2026-Q1 |
| BARCLAYS PLC trimmed | 327,320 | $10M | 0.3% | 2026-Q1 |
| Russell Investments Group, Ltd. added | 319,803 | $9M | 0.3% | 2026-Q1 |
| DEUTSCHE BANK AG\ added | 312,480 | $9M | 0.3% | 2026-Q1 |
| LORD, ABBETT & CO. LLC added | 306,181 | $9M | 0.3% | 2026-Q1 |
| Aristotle Capital Boston, LLC trimmed | 301,145 | $9M | 0.3% | 2026-Q1 |
| Aptus Capital Advisors, LLC added | 291,332 | $9M | 0.3% | 2026-Q1 |
| DENALI ADVISORS LLC trimmed | 285,461 | $8M | 0.2% | 2026-Q1 |
| RHUMBLINE ADVISERS added | 281,371 | $8M | 0.2% | 2026-Q1 |
| HSBC HOLDINGS PLC added | 274,252 | $8M | 0.2% | 2026-Q1 |
| BALYASNY ASSET MANAGEMENT L.P. added | 272,188 | $8M | 0.2% | 2026-Q1 |
| MARSHALL WACE, LLP added | 271,981 | $8M | 0.2% | 2026-Q1 |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC added | 257,500 | $8M | 0.2% | 2026-Q1 |
| AMERIPRISE FINANCIAL INC trimmed | 252,282 | $7M | 0.2% | 2026-Q1 |
| ROYCE & ASSOCIATES LP added | 251,891 | $7M | 0.2% | 2026-Q1 |
| SEVEN GRAND MANAGERS, LLC new | 250,000 | $7M | 0.2% | 2026-Q1 |
| CITADEL ADVISORS LLC trimmed | 232,500 | $7M | 0.2% | 2026-Q1 |
| TUDOR INVESTMENT CORP ET AL added | 231,686 | $7M | 0.2% | 2026-Q1 |
| Rafferty Asset Management, LLC added | 227,852 | $7M | 0.2% | 2026-Q1 |
| Advisors Asset Management, Inc. added | 221,406 | $6M | 0.2% | 2026-Q1 |
| Legal & General Group Plc trimmed | 207,360 | $6M | 0.2% | 2026-Q1 |
| Campbell & CO Investment Adviser LLC added | 205,174 | $6M | 0.2% | 2026-Q1 |
| Portolan Capital Management, LLC added | 204,244 | $6M | 0.2% | 2026-Q1 |
| CastleKnight Management LP added | 196,024 | $6M | 0.2% | 2026-Q1 |
| D. E. Shaw & Co., Inc. trimmed | 187,205 | $5M | 0.2% | 2026-Q1 |
| Swiss National Bank | 182,800 | $5M | 0.2% | 2026-Q1 |
| PEREGRINE CAPITAL MANAGEMENT LLC trimmed | 175,049 | $5M | 0.2% | 2026-Q1 |
| Creative Planning added | 174,597 | $5M | 0.1% | 2026-Q1 |
| CAXTON ASSOCIATES LLP trimmed | 172,028 | $5M | 0.1% | 2026-Q1 |
| EASTERLY INVESTMENT PARTNERS LLC trimmed | 166,361 | $5M | 0.1% | 2026-Q1 |
| SIT INVESTMENT ASSOCIATES INC | 149,000 | $4M | 0.1% | 2026-Q1 |
| Walleye Capital LLC added | 144,444 | $4M | 0.1% | 2026-Q1 |
| Sterling Capital Management LLC added | 141,330 | $4M | 0.1% | 2026-Q1 |
| VANGUARD GROUP INC trimmed | 10,128,800 | $217M | 6.4% | 2025-Q4 stale |
| WESTFIELD CAPITAL MANAGEMENT CO LP added | 1,899,017 | $47M | 1.4% | 2025-Q3 stale |
| Channing Capital Management, LLC added | 1,702,177 | $42M | 1.2% | 2025-Q3 stale |
| JENNISON ASSOCIATES LLC added | 924,629 | $26M | 0.8% | 2025-Q2 stale |
| MACQUARIE GROUP LTD trimmed | 1,056,633 | $26M | 0.8% | 2025-Q3 stale |
| BW Gestao de Investimentos Ltda. | 517,641 | $13M | 0.4% | 2025-Q3 stale |
| Point72 Asset Management, L.P. added | 579,853 | $12M | 0.4% | 2025-Q4 stale |
| Aberdeen Group plc trimmed | 399,470 | $11M | 0.3% | 2025-Q2 stale |
| SG Americas Securities, LLC added | 421,809 | $9M | 0.3% | 2025-Q4 stale |
| Bridgewater Associates, LP trimmed | 285,195 | $9M | 0.3% | 2025-Q1 stale |
| Woodline Partners LP | 247,990 | $6M | 0.2% | 2025-Q3 stale |
| Schonfeld Strategic Advisors LLC added | 243,346 | $6M | 0.2% | 2025-Q3 stale |
| 12th Street Asset Management Company, LLC added | 240,730 | $6M | 0.2% | 2025-Q3 stale |
| Oxbow Advisors, LLC added | 219,949 | $5M | 0.2% | 2025-Q3 stale |
| Brandywine Global Investment Management, LLC trimmed | 173,873 | $5M | 0.1% | 2025-Q2 stale |
| STANSBERRY ASSET MANAGEMENT, LLC new | 203,631 | $4M | 0.1% | 2025-Q4 stale |
| Ninepoint Partners LP trimmed | 150,000 | $4M | 0.1% | 2025-Q2 stale |
| DARK FOREST CAPITAL MANAGEMENT LP added | 195,702 | $4M | 0.1% | 2025-Q4 stale |
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.