TNK · Teekay Tankers Ltd. · Holdings
Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.
Institutional Ownership Trend
Holder Concentration
Across 244 13F filersWho Holds TNK
Last 8 quarters through Sep 30, 2026 (filing window open)Each kind of 13F filer's share of the common shares 13F filers report. Holder type comes from regulatory records, never the filer's name; style, turnover and horizon are measured from each filer's own 13F book. The quarter selector does not change this card.
Jun 30, 2026, the newest closed quarter: 244 filers, like-for-like change -4.6%; actively managed books -7.5%; index-like books +8.6%.
| Holder type | Share | Filers | Change |
|---|---|---|---|
| Registered adviser | 41.5% | 138 | -4.8% |
| Exempt adviser | 5.3% | 6 | +53.3% |
| Adviser | 3.6% | 6 | -1.4% |
| Bank | 6.7% | 13 | -0.4% |
| Insurer | 0.4% | 3 | +5.3% |
| Broker-dealer | 0.1% | 2 | -0.6% |
| Benefit plan | 0.2% | 4 | -1.5% |
| Non-US | 0.2% | 5 | +65.7% |
| Holding company | 22.8% | 7 | +10.8% |
| Unknown | 19.2% | 60 | -26.4% |
| Style | Share | Filers | Change |
|---|---|---|---|
| Index-like | 20.5% | 22 | +8.6% |
| Systematic-like | 11.0% | 26 | +10.3% |
| Concentrated | 2.6% | 30 | -76.9% |
| Diversified active | 65.9% | 166 | +1.8% |
| Not measured | 0.0% | 0 | — |
| Unknown | 0.0% | 0 | — |
| Turnover | Share | Filers | Change |
|---|---|---|---|
| Low turnover | 51.0% | 121 | +4.1% |
| Medium turnover | 29.9% | 64 | -1.4% |
| High turnover | 14.5% | 42 | -36.3% |
| Unknown | 4.6% | 17 | +64.4% |
| Not measured | 0.0% | 0 | — |
| Holding horizon | Share | Filers | Change |
|---|---|---|---|
| Short horizon | 5.4% | 28 | -56.6% |
| Medium horizon | 17.1% | 41 | -2.0% |
| Long horizon | 68.4% | 152 | +2.9% |
| Unknown | 9.1% | 23 | +6.2% |
| Not measured | 0.0% | 0 | — |
| 13F book size | Share | Filers | Change |
|---|---|---|---|
| Under $1B | 7.1% | 50 | -56.2% |
| $1B to $10B | 8.1% | 62 | -9.6% |
| $10B to $100B | 23.8% | 73 | +0.7% |
| $100B or more | 61.1% | 59 | +8.6% |
| Not measured | 0.0% | 0 | — |
| Client base | Share | Filers | Change |
|---|---|---|---|
| Individuals and high net worth | 1.6% | 61 | +5.2% |
| Pooled investment vehicles | 12.6% | 24 | -8.8% |
| Registered funds and BDCs | 19.6% | 21 | +1.9% |
| Pension and profit sharing plans | 0.0% | 1 | +354.8% |
| Insurance companies | 0.1% | 3 | +10.7% |
| Governments and sovereign funds | 1.4% | 7 | -1.1% |
| Corporations | 0.0% | 1 | 0.0% |
| Other investment advisers | 0.1% | 4 | -1.4% |
| Other | 0.0% | 1 | new |
| Diversified | 5.9% | 14 | -19.6% |
| Unknown | 58.7% | 107 | -4.3% |
| Private funds | Share | Filers | Change |
|---|---|---|---|
| Hedge funds | 21.8% | 44 | -6.4% |
| Private equity funds | 0.8% | 8 | -16.6% |
| Venture capital funds | 0.0% | 1 | +1.1% |
| Real estate funds | 0.0% | 3 | -6.7% |
| Securitized asset funds | 0.0% | 1 | 0.0% |
| Other private funds | 13.2% | 16 | +0.5% |
| Mixed private funds | 0.5% | 2 | +7.4% |
| Private funds, type not stated | 1.6% | 1 | +351.8% |
| No private funds | 8.9% | 68 | +1.0% |
| Unknown | 53.2% | 100 | -8.0% |
| Location | Share | Filers | Change |
|---|---|---|---|
| United States | 89.5% | 204 | -7.2% |
| Outside the US | 10.5% | 40 | +24.7% |
The Sep 30, 2026 filing window is still open, so its bar carries the Jun 30, 2026 positions of filers that have not filed yet.
How the mix is measured
Shares are 13F common shares restated to today's split basis; options and principal amounts are left out. The change compares only filers with a 13F in both quarters and keeps each filer in its bucket of the later quarter on both sides; a filer that continues under a new CIK is compared through its successor. Holder type comes from each filer's current regulatory profile; client base and private funds come from the Form ADV roster current at each quarter end (rosters from December 2019, so an earlier quarter reads Unknown). Style, turnover, horizon and book size are measured from each filer's 13F book in the newest measured quarter, and Not measured means none was. Actively managed books are those measured systematic-like, concentrated or diversified active.
Excluded 3 holders with no observed 2026-03-31 13F and 3 holders with no observed 2026-06-30 13F.
Conviction and Crowding
244 13F filers, quarter ended Jun 30, 2026Measured across every 13F filer's common-share book once the quarter's filing window closed. Crowding counts filers with high turnover or that advise private funds on Form ADV.
Managers in the top fifth by current three-year FundScore alpha were net buyers of $18,298,646 (1 buying, 0 selling).
Estimated Holder Cost Basis
Quarter ended Jun 30, 2026, on that quarter's share basisEstimated, never filed: each 13F buy is costed at its quarter's average traded price and each sale keeps the average cost, so this is what holders paid on average if they traded evenly through each quarter.
Estimated cost covers 96.8% of the 13F shares; positions already held when a filer's 13F history starts, or bought in a quarter without a trusted average price, have no estimate.
Shared Holders
Companies TNK's active holders also own, quarter ended Jun 30, 2026| # | Company | Shared holders |
|---|---|---|
| 1 | STNG Scorpio Tankers Inc. | 8 |
| 2 | INSW International Seaways, Inc. | 8 |
| 3 | TEN Tsakos Energy Navigation Ltd | 5 |
| 4 | ASC Ardmore Shipping Corp | 5 |
| 5 | SB Safe Bulkers, Inc. | 3 |
| 6 | SBLK Star Bulk Carriers Corp. | 6 |
| 7 | CMBT Cmb.Tech NV | 4 |
| 8 | DHT DHT Holdings, Inc. | 5 |
| 9 | HAFN Hafnia Ltd | 4 |
| 10 | LPG Dorian Lpg Ltd. | 4 |
Shareholder Targets
13F filers that own its peers but not TNK, quarter ended Jun 30, 2026Found through its holder-overlap peers: STNG, INSW, TEN, ASC, SB, SBLK, CMBT, DHT, HAFN, LPG, FRO, NVGS, ECO, TRMD, HG, CNR, TDW, BKE, BORR, CALY. 866 filers in all.
| # | Filer | In peers | Largest peers |
|---|---|---|---|
| 1 | VANGUARD CAPITAL MANAGEMENT LLC Registered adviser, Index-like | $957,382,464 12 held | CNR, INSW, FRO |
| 2 | WELLINGTON MANAGEMENT GROUP LLP Holding company, Diversified active | $608,579,503 8 held | CALY, HG, TDW |
| 3 | OAKTREE CAPITAL MANAGEMENT LP Adviser, Concentrated | $529,796,516 1 held | TRMD |
| 4 | Magnitude Capital, LLC Registered adviser, Unknown | $512,390,143 1 held | HG |
| 5 | DME Capital Management, LP Registered adviser, Diversified active | $265,918,972 2 held | CNR, DHT |
| 6 | ROBOTTI ROBERT Holding company, Concentrated | $204,394,940 3 held | TDW, NVGS, INSW |
| 7 | NEUBERGER BERMAN GROUP LLC Holding company, Diversified active | $192,294,115 8 held | TDW, DHT, INSW |
| 8 | LSV ASSET MANAGEMENT Registered adviser, Diversified active | $158,480,348 10 held | STNG, DHT, NVGS |
| 9 | NOMURA ASSET MANAGEMENT INTERNATIONAL INC. Adviser, Diversified active | $155,217,006 5 held | INSW, CNR, STNG |
| 10 | Hosking Partners LLP Registered adviser, Diversified active | $153,467,135 5 held | DHT, INSW, TDW |
Fund Ownership of TNK by Fund Type
Registered funds' Form N-PORT reports for the quarter ended Jun 30, 2026Index funds and index ETFs hold 1.08% of shares outstanding.
| Fund type | Of shares outstanding | Shares |
|---|---|---|
| Index funds | 0.23% | 79,050 |
| Index ETFs | 0.86% | 296,556 |
| Active ETFs | 1.95% | 675,553 |
| Active funds | 2.07% | 718,261 |
| Unclassified | 2.65% | 916,607 |
| All registered funds | 7.75% | 2,686,027 |
How fund types are measured
Each fund series counts once, with its latest Form N-PORT report dated inside the quarter; only long share positions count, restated to today's split basis. The fund type is the series' latest Form N-CEN answer on or before the quarter end (the index-fund box and the exchange-traded flag), never its name. Unclassified funds have no usable N-CEN; unit investment trusts are among them, so index ownership is a floor. Funds sit inside their advisers' 13F reports, so these shares overlap the 13F figures and are never added to them.
| Holder | Value (USD) | % of 13F | Shares | Type | Filed | Open |
|---|---|---|---|---|---|---|
| Mega DIMENSIONAL FUND ADVISORS LP Registered adviser | $124,595,806 | 9.32% | 1,920,700 | Shares | 2026-08-11 | |
| Mega FMR LLC Holding company | $118,419,600 | 8.86% | 1,825,491 | Shares | 2026-08-13 | |
| Mega BlackRock, Inc. Holding company | $107,973,387 | 8.08% | 1,664,458 | Shares | 2026-08-07 | |
| Mega AMERICAN CENTURY COMPANIES INC | $65,198,761 | 4.88% | 1,005,068 | Shares | 2026-08-12 | |
| Large ACADIAN ASSET MANAGEMENT LLC | $64,655,215 | 4.84% | 996,689 | Shares | 2026-08-13 | |
| Mega MORGAN STANLEY Holding company | $45,868,665 | 3.43% | 707,086 | Shares | 2026-08-13 | |
| Mega GEODE CAPITAL MANAGEMENT, LLC Registered adviser | $31,051,387 | 2.32% | 478,671 | Shares | 2026-08-12 | |
| Mega Qube Research & Technologies Ltd Exempt adviser | $31,013,698 | 2.32% | 478,090 | Shares | 2026-08-14 | |
| Large RENAISSANCE TECHNOLOGIES LLC Registered adviser | $27,629,689 | 2.07% | 425,924 | Shares | 2026-08-13 | |
| Mega STATE STREET CORP Bank | $27,102,167 | 2.03% | 417,792 | Shares | 2026-09-22 | |
| Mid CastleKnight Management LP Registered adviser | $25,366,505 | 1.90% | 391,036 | Shares | 2026-08-14 | |
| Mega CITADEL ADVISORS LLC Registered adviser | $21,882,921 | 1.64% | 337,335 | Shares | 2026-09-02 | |
| Mega JPMORGAN CHASE & CO Bank | $21,753,177 | 1.63% | 335,335 | Shares | 2026-08-12 | |
| Large FULLER & THALER ASSET MANAGEMENT, INC. Registered adviser | $21,606,640 | 1.62% | 333,076 | Shares | 2026-08-12 | |
| Small Hartree Partners, LP | $20,878,020 | 1.56% | 321,844 | Shares | 2026-08-12 | |
| Mega TWO SIGMA INVESTMENTS, LP Registered adviser | $20,686,588 | 1.55% | 318,893 | Shares | 2026-08-14 | |
| Small FEARNLEY ASSET MANAGEMENT AS Exempt adviser | $20,252,024 | 1.52% | 312,194 | Shares | 2026-08-14 | |
| Large TUDOR INVESTMENT CORP ET AL Registered adviser | $19,070,482 | 1.43% | 293,980 | Shares | 2026-08-14 | |
| Mid BRIDGEWAY CAPITAL MANAGEMENT, LLC Registered adviser | $18,702,280 | 1.40% | 288,304 | Shares | 2026-08-14 | |
| Mega UBS Group AG Bank | $18,433,783 | 1.38% | 284,165 | Call | 2026-08-13 | |
| Mega AMERIPRISE FINANCIAL INC Adviser | $18,104,048 | 1.35% | 279,082 | Shares | 2026-08-14 | |
| Mega GOLDMAN SACHS GROUP INC Holding company | $17,970,676 | 1.34% | 277,026 | Shares | 2026-08-14 | |
| Small Summit Street Capital Management, LLC Registered adviser | $17,571,985 | 1.31% | 270,880 | Shares | 2026-08-14 | |
| Mega AQR CAPITAL MANAGEMENT LLC Registered adviser | $17,427,062 | 1.30% | 268,646 | Shares | 2026-08-14 | |
| Large NEOS Investment Management LLC Adviser | $16,584,145 | 1.24% | 255,652 | Shares | 2026-08-11 | |
| Large Connor, Clark & Lunn Investment Management Ltd. Registered adviser | $15,389,369 | 1.15% | 237,234 | Shares | 2026-08-13 | |
| Mid FIDEURAM - INTESA SANPAOLO PRIVATE BANKING S.P.A. | $14,836,871 | 1.11% | 228,717 | Shares | 2026-07-23 | |
| Mega NORTHERN TRUST CORP Bank | $14,070,106 | 1.05% | 216,897 | Shares | 2026-08-13 | |
| Mega VANGUARD PORTFOLIO MANAGEMENT LLC Registered adviser | $13,980,652 | 1.05% | 215,518 | Shares | 2026-08-13 | |
| Mega Russell Investments Group, Ltd. | $12,893,232 | 0.96% | 198,755 | Shares | 2026-08-06 | |
| Large Empowered Funds, LLC Registered adviser | $12,620,587 | 0.94% | 194,552 | Shares | 2026-08-17 | |
| Mega ARROWSTREET CAPITAL, LIMITED PARTNERSHIP Registered adviser | $12,516,082 | 0.94% | 192,941 | Shares | 2026-08-13 | |
| Mega BANK OF AMERICA CORP /DE/ Bank | $11,268,824 | 0.84% | 173,714 | Shares | 2026-08-14 | |
| Mega JANE STREET GROUP, LLC | $10,612,732 | 0.79% | 163,600 | Call | 2026-08-14 | |
| Large ROYCE & ASSOCIATES LP Registered adviser | $9,361,259 | 0.70% | 144,308 | Shares | 2026-08-14 | |
| Large MARSHALL WACE, LLP Exempt adviser | $9,270,246 | 0.69% | 142,905 | Shares | 2026-08-13 | |
| Large JACOBS LEVY EQUITY MANAGEMENT, INC Registered adviser | $9,003,501 | 0.67% | 138,793 | Shares | 2026-08-14 | |
| Mega JANE STREET GROUP, LLC | $8,323,598 | 0.62% | 128,312 | Shares | 2026-08-14 | |
| Mega VICTORY CAPITAL MANAGEMENT INC Registered adviser | $7,674,185 | 0.57% | 118,301 | Shares | 2026-08-07 | |
| Large Point72 Asset Management, L.P. Registered adviser | $6,536,495 | 0.49% | 100,763 | Shares | 2026-08-14 | |
| Small Quantedge Capital Pte Ltd Exempt adviser | $6,494,654 | 0.49% | 100,118 | Shares | 2026-08-06 | |
| Mega FRANKLIN RESOURCES INC Adviser | $6,455,342 | 0.48% | 99,512 | Shares | 2026-08-13 | |
| Large Man Group plc | $6,447,818 | 0.48% | 99,396 | Shares | 2026-08-14 | |
| Small DENALI ADVISORS LLC Registered adviser | $6,193,852 | 0.46% | 95,481 | Shares | 2026-08-10 | |
| Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC Registered adviser | $6,168,358 | 0.46% | 95,088 | Shares | 2026-08-14 | |
| Mega SEI INVESTMENTS CO | $6,024,866 | 0.45% | 92,876 | Shares | 2026-08-14 | |
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $5,637,203 | 0.42% | 86,900 | Put | 2026-08-14 | |
| Large Balyasny Asset Management L.P. Registered adviser | $5,408,017 | 0.40% | 83,367 | Shares | 2026-08-14 | |
| Mid CSM Advisors, LLC | $5,288,656 | 0.40% | 81,527 | Shares | 2026-08-14 | |
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $5,072,834 | 0.38% | 78,200 | Call | 2026-08-14 | |
| Mega UBS Group AG Bank | $4,837,874 | 0.36% | 74,578 | Shares | 2026-08-13 | |
| Large Trexquant Investment LP Registered adviser | $4,579,497 | 0.34% | 70,595 | Shares | 2026-08-14 | |
| Mega MILLENNIUM MANAGEMENT LLC Registered adviser | $4,503,534 | 0.34% | 69,424 | Shares | 2026-08-14 | |
| Mid Linden Thomas Advisory Services, LLC Registered adviser | $4,468,545 | 0.33% | 46,039 | Shares | 2026-10-19 | |
| Mega Bank of New York Mellon Corp Bank | $4,348,687 | 0.33% | 67,037 | Shares | 2026-08-06 | |
| Mid MARTINGALE ASSET MANAGEMENT L P Registered adviser | $4,298,999 | 0.32% | 66,271 | Shares | 2026-08-13 | |
| Large Pacer Advisors, Inc. | $4,235,686 | 0.32% | 65,295 | Shares | 2026-08-13 | |
| Mega Nuveen, LLC | $4,053,336 | 0.30% | 62,484 | Shares | 2026-08-11 | |
| Mid SYSTEMATIC FINANCIAL MANAGEMENT LP Registered adviser | $4,019,733 | 0.30% | 61,966 | Shares | 2026-08-14 | |
| Large Hudson Bay Capital Management LP Registered adviser | $3,643,034 | 0.27% | 56,159 | Shares | 2026-08-14 | |
| Mid XTX Topco Ltd | $3,624,286 | 0.27% | 55,870 | Shares | 2026-08-14 | |
| Mid Engineers Gate Manager LP | $3,569,666 | 0.27% | 55,028 | Shares | 2026-08-14 | |
| Large GREAT LAKES ADVISORS, LLC Registered adviser | $3,439,342 | 0.26% | 53,019 | Shares | 2026-08-10 | |
| Mega PRINCIPAL FINANCIAL GROUP INC Insurer | $3,274,117 | 0.24% | 50,472 | Shares | 2026-08-04 | |
| Mega Invesco Ltd. Adviser | $3,237,660 | 0.24% | 49,910 | Shares | 2026-08-14 | |
| Large Squarepoint Ops LLC Registered adviser | $3,203,604 | 0.24% | 49,385 | Shares | 2026-08-14 | |
| Small Marnell Management LLC Registered adviser | $2,879,644 | 0.22% | 44,391 | Shares | 2026-08-13 | |
| Mid Glenorchy Capital Ltd Registered adviser | $2,460,973 | 0.18% | 37,937 | Shares | 2026-07-29 | |
| Large CREDIT AGRICOLE S A | $2,453,772 | 0.18% | 37,826 | Shares | 2026-08-14 | |
| Mid Fideuram Asset Management (Ireland) dac | $2,407,260 | 0.18% | 37,109 | Shares | 2026-07-23 | |
| Large NEW YORK STATE COMMON RETIREMENT FUND | $2,387,345 | 0.18% | 36,802 | Shares | 2026-07-29 | |
| Large IEQ CAPITAL, LLC Registered adviser | $2,386,761 | 0.18% | 36,793 | Shares | 2026-08-11 | |
| Small Strategic Global Advisors, LLC Registered adviser | $2,174,831 | 0.16% | 33,526 | Shares | 2026-08-14 | |
| Mega RHUMBLINE ADVISERS Registered adviser | $2,153,229 | 0.16% | 33,193 | Shares | 2026-08-12 | |
| Mega CITADEL ADVISORS LLC Registered adviser | $2,134,223 | 0.16% | 32,900 | Call | 2026-09-02 | |
| Small WEXFORD CAPITAL LP Registered adviser | $2,119,043 | 0.16% | 32,666 | Shares | 2026-08-14 | |
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $2,100,944 | 0.16% | 32,387 | Shares | 2026-08-14 | |
| Mega Amundi Holding company | $1,992,091 | 0.15% | 30,709 | Shares | 2026-08-11 | |
| Mega ALLIANCEBERNSTEIN L.P. Registered adviser | $1,901,988 | 0.14% | 29,320 | Shares | 2026-08-14 | |
| Large LAZARD ASSET MANAGEMENT LLC Adviser | $1,871,888 | 0.14% | 28,856 | Shares | 2026-08-14 | |
| Mega LPL Financial LLC Broker-dealer | $1,864,234 | 0.14% | 28,738 | Shares | 2026-08-07 | |
| Small Integrated Quantitative Investments LLC Registered adviser | $1,857,357 | 0.14% | 28,632 | Shares | 2026-08-14 | |
| Mega MANUFACTURERS LIFE INSURANCE COMPANY, THE | $1,753,760 | 0.13% | 27,035 | Shares | 2026-09-09 | |
| Large PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO Benefit plan | $1,698,945 | 0.13% | 26,190 | Shares | 2026-08-17 | |
| Mid BOOTHBAY FUND MANAGEMENT, LLC Registered adviser | $1,669,234 | 0.12% | 25,732 | Shares | 2026-08-14 | |
| Mega DEUTSCHE BANK AG\ Non-US | $1,557,658 | 0.12% | 24,012 | Shares | 2026-08-07 | |
| Large NOMURA HOLDINGS INC | $1,450,039 | 0.11% | 22,353 | Shares | 2026-08-14 | |
| Mega CITADEL ADVISORS LLC Registered adviser | $1,388,218 | 0.10% | 21,400 | Put | 2026-09-02 | |
| Small HUSSMAN STRATEGIC ADVISORS, INC. Registered adviser | $1,362,270 | 0.10% | 21,000 | Shares | 2026-08-03 | |
| Mega WELLS FARGO & COMPANY/MN Bank | $1,356,884 | 0.10% | 20,917 | Shares | 2026-08-14 | |
| Mid SEGALL BRYANT & HAMILL, LLC Registered adviser | $1,328,342 | 0.10% | 20,477 | Shares | 2026-08-12 | |
| Mega PRICE T ROWE ASSOCIATES INC /MD/ Registered adviser | $1,311,411 | 0.10% | 20,216 | Shares | 2026-08-14 | |
| Large O'SHAUGHNESSY ASSET MANAGEMENT, LLC Registered adviser | $1,296,491 | 0.10% | 19,986 | Shares | 2026-08-13 | |
| Small Kendall Capital Management Registered adviser | $1,280,339 | 0.10% | 19,737 | Shares | 2026-08-12 | |
| Mid BTG Pactual Asset Management US LLC Registered adviser | $1,269,505 | 0.09% | 19,570 | Shares | 2026-08-14 | |
| Large IMC-Chicago, LLC | $1,248,617 | 0.09% | 19,248 | Shares | 2026-08-06 | |
| Small SummerHaven Investment Management, LLC | $1,225,188 | 0.09% | 12,623 | Shares | 2026-10-19 | |
| Large CAPITAL FUND MANAGEMENT S.A. | $1,183,812 | 0.09% | 18,249 | Shares | 2026-08-13 | |
| Mid Aquatic Capital Management LLC Registered adviser | $1,151,118 | 0.09% | 17,745 | Shares | 2026-08-14 | |
| Mid DARK FOREST CAPITAL MANAGEMENT LP Registered adviser | $1,082,810 | 0.08% | 16,692 | Shares | 2026-08-14 |
Showing the top 100 of 255 holders. Create a free account to see every holder, past quarters, search, filters and CSV export.