Who owns STNG
Which tracked institutional funds hold STNG, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See STNG 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
64 tracked funds added or opened STNG while 88 trimmed or exited it between 2026-Q1 and 2026-Q2 — the tape is split. When large holders disagree on a name, the funds moving first are sometimes ahead of the story.
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
STNG’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 STNG more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in STNG 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 285 tracked filers holding STNG, 180 increased or opened the position and 154 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 STNG 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 18
- KEYSTONE INVESTORS PTE LTD$13M
- Beck Bode, LLC$9M
- Hillsdale Investment Management Inc.$7M
- WEXFORD CAPITAL LP$6M
- CVFG LLC$5M
- LGT Fund Management Co Ltd.$3M
Full exits 39
- LSV ASSET MANAGEMENT$127M
- T. Rowe Price Investment Management, Inc.$97M
- ACADIAN ASSET MANAGEMENT LLC$17M
- COOPER CREEK PARTNERS MANAGEMENT LLC$15M
- Encompass Capital Advisors LLC$15M
- ExodusPoint Capital Management, LP$14M
Largest adds
- FMR LLC$99M
- BARCLAYS PLC$30M
- Allspring Global Investments Holdings, LLC$23M
- BlackRock, Inc.$20M
- UBS Group AG$20M
- JPMORGAN CHASE & CO$13M
Largest trims
- VICTORY CAPITAL MANAGEMENT INC$39M
- Assenagon Asset Management S.A.$31M
- VANGUARD PORTFOLIO MANAGEMENT LLC$31M
- Squarepoint Ops LLC$20M
- BALYASNY ASSET MANAGEMENT L.P.$17M
- GOLDMAN SACHS GROUP INC$15M
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 |
|---|---|---|---|---|
| BlackRock, Inc. added | 4,134,896 | $286M | 13.1% | 2026-Q2 |
| DIMENSIONAL FUND ADVISORS LP added | 3,161,018 | $219M | 10.0% | 2026-Q2 |
| TWO SIGMA INVESTMENTS, LP added | 1,617,426 | $112M | 5.1% | 2026-Q2 |
| FMR LLC added | 1,553,865 | $108M | 4.9% | 2026-Q2 |
| AMERICAN CENTURY COMPANIES INC added | 1,192,112 | $83M | 3.8% | 2026-Q2 |
| RENAISSANCE TECHNOLOGIES LLC trimmed | 1,140,715 | $79M | 3.6% | 2026-Q2 |
| GEODE CAPITAL MANAGEMENT, LLC added | 1,084,457 | $75M | 3.4% | 2026-Q2 |
| AQR CAPITAL MANAGEMENT LLC added | 1,018,759 | $71M | 3.2% | 2026-Q2 |
| VICTORY CAPITAL MANAGEMENT INC trimmed | 858,118 | $59M | 2.7% | 2026-Q2 |
| STATE STREET CORP added | 777,887 | $54M | 2.5% | 2026-Q2 |
| GOLDMAN SACHS GROUP INC trimmed | 777,127 | $54M | 2.5% | 2026-Q2 |
| Squarepoint Ops LLC trimmed | 749,230 | $52M | 2.4% | 2026-Q2 |
| BARCLAYS PLC added | 649,210 | $45M | 2.1% | 2026-Q2 |
| JPMORGAN CHASE & CO added | 597,712 | $42M | 1.9% | 2026-Q2 |
| VANGUARD PORTFOLIO MANAGEMENT LLC trimmed | 547,176 | $38M | 1.7% | 2026-Q2 |
| Assenagon Asset Management S.A. trimmed | 540,673 | $37M | 1.7% | 2026-Q2 |
| UBS Group AG added | 531,150 | $37M | 1.7% | 2026-Q2 |
| Qube Research & Technologies Ltd trimmed | 503,193 | $35M | 1.6% | 2026-Q2 |
| Boston Partners added | 453,726 | $31M | 1.4% | 2026-Q2 |
| MORGAN STANLEY trimmed | 370,520 | $26M | 1.2% | 2026-Q2 |
| TUDOR INVESTMENT CORP ET AL trimmed | 361,050 | $25M | 1.1% | 2026-Q2 |
| NORTHERN TRUST CORP added | 359,489 | $25M | 1.1% | 2026-Q2 |
| Allspring Global Investments Holdings, LLC added | 356,038 | $25M | 1.1% | 2026-Q2 |
| Russell Investments Group, Ltd. added | 325,351 | $23M | 1.0% | 2026-Q2 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 311,234 | $22M | 1.0% | 2026-Q2 |
| MILLENNIUM MANAGEMENT LLC trimmed | 292,272 | $20M | 0.9% | 2026-Q2 |
| JANE STREET GROUP, LLC trimmed | 281,267 | $19M | 0.9% | 2026-Q2 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC added | 274,197 | $19M | 0.9% | 2026-Q2 |
| CastleKnight Management LP added | 259,500 | $18M | 0.8% | 2026-Q2 |
| Summit Street Capital Management, LLC trimmed | 256,772 | $18M | 0.8% | 2026-Q2 |
| TCW GROUP INC added | 235,892 | $16M | 0.7% | 2026-Q2 |
| First Eagle Investment Management, LLC trimmed | 228,718 | $16M | 0.7% | 2026-Q2 |
| Empowered Funds, LLC trimmed | 224,501 | $16M | 0.7% | 2026-Q2 |
| BANK OF AMERICA CORP /DE/ trimmed | 214,876 | $15M | 0.7% | 2026-Q2 |
| PRIVATE MANAGEMENT GROUP INC trimmed | 207,270 | $14M | 0.7% | 2026-Q2 |
| AMERIPRISE FINANCIAL INC trimmed | 201,354 | $14M | 0.6% | 2026-Q2 |
| Trexquant Investment LP trimmed | 191,408 | $13M | 0.6% | 2026-Q2 |
| KEYSTONE INVESTORS PTE LTD new | 185,840 | $13M | 0.6% | 2026-Q2 |
| DNB Asset Management AS added | 184,381 | $13M | 0.6% | 2026-Q2 |
| TICINO WEALTH added | 182,570 | $13M | 0.6% | 2026-Q2 |
| Connor, Clark & Lunn Investment Management Ltd. added | 173,164 | $12M | 0.5% | 2026-Q2 |
| Bridgewater Associates, LP added | 164,254 | $11M | 0.5% | 2026-Q2 |
| CITIGROUP INC added | 154,658 | $11M | 0.5% | 2026-Q2 |
| Bank of New York Mellon Corp added | 154,603 | $11M | 0.5% | 2026-Q2 |
| SEI INVESTMENTS CO added | 146,687 | $10M | 0.5% | 2026-Q2 |
| Allianz Asset Management GmbH added | 146,469 | $10M | 0.5% | 2026-Q2 |
| Hosking Partners LLP trimmed | 134,813 | $9M | 0.4% | 2026-Q2 |
| BALYASNY ASSET MANAGEMENT L.P. trimmed | 133,458 | $9M | 0.4% | 2026-Q2 |
| Beck Bode, LLC new | 125,592 | $9M | 0.4% | 2026-Q2 |
| Invesco Ltd. added | 121,403 | $8M | 0.4% | 2026-Q2 |
| Nuveen, LLC added | 119,202 | $8M | 0.4% | 2026-Q2 |
| PRINCIPAL FINANCIAL GROUP INC added | 115,285 | $8M | 0.4% | 2026-Q2 |
| CAPITAL FUND MANAGEMENT S.A. added | 106,755 | $7M | 0.3% | 2026-Q2 |
| IEQ CAPITAL, LLC trimmed | 106,517 | $7M | 0.3% | 2026-Q2 |
| Hillsdale Investment Management Inc. added | 105,400 | $7M | 0.3% | 2026-Q2 |
| FRANKLIN RESOURCES INC added | 102,233 | $7M | 0.3% | 2026-Q2 |
| WEXFORD CAPITAL LP added | 91,776 | $6M | 0.3% | 2026-Q2 |
| Point72 Asset Management, L.P. trimmed | 89,709 | $6M | 0.3% | 2026-Q2 |
| Creative Planning added | 80,761 | $6M | 0.3% | 2026-Q2 |
| MARTINGALE ASSET MANAGEMENT L P added | 75,746 | $5M | 0.2% | 2026-Q2 |
| XTX Topco Ltd added | 74,864 | $5M | 0.2% | 2026-Q2 |
| Moody Aldrich Partners LLC trimmed | 71,761 | $5M | 0.2% | 2026-Q2 |
| Engineers Gate Manager LP trimmed | 67,942 | $5M | 0.2% | 2026-Q2 |
| CVFG LLC new | 67,890 | $5M | 0.2% | 2026-Q2 |
| WELLS FARGO & COMPANY/MN added | 64,528 | $4M | 0.2% | 2026-Q2 |
| Schonfeld Strategic Advisors LLC added | 63,344 | $4M | 0.2% | 2026-Q2 |
| RHUMBLINE ADVISERS added | 63,213 | $4M | 0.2% | 2026-Q2 |
| Man Group plc added | 55,626 | $4M | 0.2% | 2026-Q2 |
| ALLIANCEBERNSTEIN L.P. added | 53,897 | $4M | 0.2% | 2026-Q2 |
| PDT Partners, LLC added | 49,481 | $3M | 0.2% | 2026-Q2 |
| BNP PARIBAS FINANCIAL MARKETS trimmed | 49,272 | $3M | 0.2% | 2026-Q2 |
| Tidal Investments LLC trimmed | 47,867 | $3M | 0.2% | 2026-Q2 |
| ALGERT GLOBAL LLC added | 47,751 | $3M | 0.2% | 2026-Q2 |
| NOMURA HOLDINGS INC trimmed | 45,701 | $3M | 0.1% | 2026-Q2 |
| INTERNATIONAL ASSETS INVESTMENT MANAGEMENT, LLC added | 45,500 | $3M | 0.1% | 2026-Q2 |
| DEUTSCHE BANK AG\ added | 44,480 | $3M | 0.1% | 2026-Q2 |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM added | 41,455 | $3M | 0.1% | 2026-Q2 |
| LPL Financial LLC added | 40,484 | $3M | 0.1% | 2026-Q2 |
| Mariner, LLC added | 39,771 | $3M | 0.1% | 2026-Q2 |
| LGT Fund Management Co Ltd. trimmed | 39,500 | $3M | 0.1% | 2026-Q2 |
| NAVELLIER & ASSOCIATES INC added | 38,960 | $3M | 0.1% | 2026-Q2 |
| Ruffer LLP trimmed | 38,491 | $3M | 0.1% | 2026-Q2 |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 38,276 | $3M | 0.1% | 2026-Q2 |
| VANGUARD CAPITAL MANAGEMENT LLC added | 36,830 | $3M | 0.1% | 2026-Q2 |
| WEALTH ENHANCEMENT ADVISORY SERVICES, LLC added | 36,723 | $3M | 0.1% | 2026-Q2 |
| BOOTHBAY FUND MANAGEMENT, LLC added | 36,707 | $3M | 0.1% | 2026-Q2 |
| MACKENZIE FINANCIAL CORP added | 34,477 | $2M | 0.1% | 2026-Q2 |
| PICTON MAHONEY ASSET MANAGEMENT added | 31,190 | $2M | 0.1% | 2026-Q2 |
| Glenorchy Capital Ltd added | 30,521 | $2M | 0.1% | 2026-Q2 |
| CANADA PENSION PLAN INVESTMENT BOARD added | 29,700 | $2M | 0.1% | 2026-Q2 |
| Game Creek Capital, LP trimmed | 28,275 | $2M | 0.1% | 2026-Q2 |
| FEDERATED HERMES, INC. added | 27,274 | $2M | 0.1% | 2026-Q2 |
| MetLife Investment Management, LLC added | 27,128 | $2M | 0.1% | 2026-Q2 |
| IMC-Chicago, LLC trimmed | 26,565 | $2M | 0.1% | 2026-Q2 |
| CITADEL ADVISORS LLC trimmed | 26,312 | $2M | 0.1% | 2026-Q2 |
| Cerity Partners LLC trimmed | 25,955 | $2M | 0.1% | 2026-Q2 |
| Quantinno Capital Management LP trimmed | 25,655 | $2M | 0.1% | 2026-Q2 |
| Marnell Management LLC trimmed | 24,726 | $2M | 0.1% | 2026-Q2 |
| MERCER GLOBAL ADVISORS INC /ADV added | 23,621 | $2M | 0.1% | 2026-Q2 |
| CREDIT AGRICOLE S A trimmed | 23,000 | $2M | 0.1% | 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.