Who owns Tidewater (TDW)
Which tracked institutional funds hold TDW, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See TDW 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 TDW is one-sided between 2026-Q1 and 2026-Q2: 45 added or opened and 141 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
TDW’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 TDW more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in TDW 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 337 tracked filers holding TDW, 176 increased or opened the position and 188 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 TDW 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 15
- Zurich Insurance Group Ltd/FI$20M
- NORGES BANK$4M
- CAPSTONE INVESTMENT ADVISORS, LLC$3M
- Lloyd Harbor Capital Management, LLC$3M
- Cresset Asset Management, LLC$2M
- Lighthouse Investment Partners, LLC$2M
Full exits 38
- Pacer Advisors, Inc.$34M
- Cambria Investment Management, L.P.$10M
- TUDOR INVESTMENT CORP ET AL$10M
- South Dakota Investment Council$8M
- BESSEMER GROUP INC$8M
- THOMPSON SIEGEL & WALMSLEY LLC$7M
Largest adds
- BlackRock, Inc.$76M
- CITADEL ADVISORS LLC$63M
- Sourcerock Group LLC$58M
- BAILLIE GIFFORD & CO$57M
- MILLENNIUM MANAGEMENT LLC$19M
- FORT WASHINGTON INVESTMENT ADVISORS INC /OH/$12M
Largest trims
- NEUBERGER BERMAN GROUP LLC$87M
- UBS Group AG$56M
- ROBOTTI ROBERT$50M
- VANGUARD PORTFOLIO MANAGEMENT LLC$35M
- VANGUARD CAPITAL MANAGEMENT LLC$32M
- FRONTIER CAPITAL MANAGEMENT CO LLC$30M
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 | 7,552,159 | $503M | 13.7% | 2026-Q2 |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 3,683,612 | $245M | 6.7% | 2026-Q2 |
| ROBOTTI ROBERT trimmed | 2,906,380 | $194M | 5.3% | 2026-Q2 |
| NEUBERGER BERMAN GROUP LLC trimmed | 2,803,406 | $187M | 5.1% | 2026-Q2 |
| VANGUARD PORTFOLIO MANAGEMENT LLC added | 2,762,204 | $184M | 5.0% | 2026-Q2 |
| DIMENSIONAL FUND ADVISORS LP added | 2,081,880 | $139M | 3.8% | 2026-Q2 |
| STATE STREET CORP added | 2,030,982 | $135M | 3.7% | 2026-Q2 |
| VANGUARD CAPITAL MANAGEMENT LLC added | 1,953,287 | $130M | 3.6% | 2026-Q2 |
| BAILLIE GIFFORD & CO added | 1,670,774 | $111M | 3.0% | 2026-Q2 |
| AMERICAN CENTURY COMPANIES INC added | 1,617,736 | $108M | 2.9% | 2026-Q2 |
| WELLINGTON MANAGEMENT GROUP LLP added | 1,475,804 | $98M | 2.7% | 2026-Q2 |
| Sourcerock Group LLC added | 1,404,984 | $94M | 2.6% | 2026-Q2 |
| GEODE CAPITAL MANAGEMENT, LLC added | 1,345,522 | $90M | 2.4% | 2026-Q2 |
| CITADEL ADVISORS LLC added | 1,248,280 | $83M | 2.3% | 2026-Q2 |
| UBS Group AG trimmed | 1,055,775 | $70M | 1.9% | 2026-Q2 |
| THIRD AVENUE MANAGEMENT LLC added | 934,121 | $62M | 1.7% | 2026-Q2 |
| FRONTIER CAPITAL MANAGEMENT CO LLC trimmed | 894,796 | $60M | 1.6% | 2026-Q2 |
| MORGAN STANLEY added | 857,870 | $57M | 1.6% | 2026-Q2 |
| VAN ECK ASSOCIATES CORP trimmed | 764,490 | $51M | 1.4% | 2026-Q2 |
| FORT WASHINGTON INVESTMENT ADVISORS INC /OH/ added | 683,705 | $46M | 1.2% | 2026-Q2 |
| Hosking Partners LLP trimmed | 609,611 | $41M | 1.1% | 2026-Q2 |
| Driehaus Capital Management LLC trimmed | 558,352 | $37M | 1.0% | 2026-Q2 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC trimmed | 546,128 | $36M | 1.0% | 2026-Q2 |
| GOLDMAN SACHS GROUP INC added | 537,393 | $36M | 1.0% | 2026-Q2 |
| Cerity Partners LLC trimmed | 535,392 | $36M | 1.0% | 2026-Q2 |
| NORTHERN TRUST CORP added | 492,632 | $33M | 0.9% | 2026-Q2 |
| BANK OF AMERICA CORP /DE/ added | 424,622 | $28M | 0.8% | 2026-Q2 |
| SILVERCREST ASSET MANAGEMENT GROUP LLC trimmed | 419,056 | $28M | 0.8% | 2026-Q2 |
| Boston Partners trimmed | 413,172 | $28M | 0.8% | 2026-Q2 |
| Old West Investment Management, LLC trimmed | 393,788 | $26M | 0.7% | 2026-Q2 |
| FEDERATED HERMES, INC. trimmed | 392,399 | $26M | 0.7% | 2026-Q2 |
| Bank of New York Mellon Corp added | 372,838 | $25M | 0.7% | 2026-Q2 |
| FMR LLC added | 366,390 | $24M | 0.7% | 2026-Q2 |
| KEYBANK NATIONAL ASSOCIATION/OH added | 346,699 | $23M | 0.6% | 2026-Q2 |
| PUNCH & ASSOCIATES INVESTMENT MANAGEMENT, INC. trimmed | 342,356 | $23M | 0.6% | 2026-Q2 |
| VANGUARD FIDUCIARY TRUST CO added | 331,601 | $22M | 0.6% | 2026-Q2 |
| Empire Life Investments Inc. trimmed | 328,957 | $22M | 0.6% | 2026-Q2 |
| MILLENNIUM MANAGEMENT LLC added | 321,301 | $21M | 0.6% | 2026-Q2 |
| PRINCIPAL FINANCIAL GROUP INC added | 316,805 | $21M | 0.6% | 2026-Q2 |
| Zurich Insurance Group Ltd/FI new | 298,941 | $20M | 0.5% | 2026-Q2 |
| VALUEWORKS LLC trimmed | 297,114 | $20M | 0.5% | 2026-Q2 |
| VICTORY CAPITAL MANAGEMENT INC added | 295,543 | $20M | 0.5% | 2026-Q2 |
| RAYMOND JAMES FINANCIAL INC trimmed | 294,358 | $20M | 0.5% | 2026-Q2 |
| Invesco Ltd. added | 292,275 | $19M | 0.5% | 2026-Q2 |
| Condire Management, LP | 285,900 | $19M | 0.5% | 2026-Q2 |
| AEGIS FINANCIAL CORP | 276,529 | $18M | 0.5% | 2026-Q2 |
| FIDEURAM - INTESA SANPAOLO PRIVATE BANKING S.P.A. trimmed | 265,133 | $18M | 0.5% | 2026-Q2 |
| VILLERE ST DENIS J & CO LLC trimmed | 249,856 | $17M | 0.5% | 2026-Q2 |
| BALYASNY ASSET MANAGEMENT L.P. added | 239,673 | $16M | 0.4% | 2026-Q2 |
| TimesSquare Capital Management, LLC added | 232,097 | $15M | 0.4% | 2026-Q2 |
| AMERIPRISE FINANCIAL INC trimmed | 216,153 | $14M | 0.4% | 2026-Q2 |
| Canoe Financial LP trimmed | 210,456 | $14M | 0.4% | 2026-Q2 |
| Alyeska Investment Group, L.P. added | 207,468 | $14M | 0.4% | 2026-Q2 |
| MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC trimmed | 178,221 | $12M | 0.3% | 2026-Q2 |
| Public Sector Pension Investment Board trimmed | 158,844 | $11M | 0.3% | 2026-Q2 |
| De Lisle Partners LLP | 126,273 | $8M | 0.2% | 2026-Q2 |
| PINNACLE ASSOCIATES LTD trimmed | 120,230 | $8M | 0.2% | 2026-Q2 |
| Nuveen, LLC added | 119,823 | $8M | 0.2% | 2026-Q2 |
| American Family Investments, Inc. | 119,817 | $8M | 0.2% | 2026-Q2 |
| Universal- Beteiligungs- und Servicegesellschaft mbH trimmed | 110,792 | $7M | 0.2% | 2026-Q2 |
| RHUMBLINE ADVISERS trimmed | 110,453 | $7M | 0.2% | 2026-Q2 |
| Fideuram Asset Management (Ireland) dac added | 102,598 | $8M | 0.2% | 2026-Q2 |
| FIRST MANHATTAN CO. LLC. added | 99,030 | $7M | 0.2% | 2026-Q2 |
| Marnell Management LLC added | 98,490 | $7M | 0.2% | 2026-Q2 |
| Mitsubishi UFJ Trust & Banking Corp added | 91,657 | $6M | 0.2% | 2026-Q2 |
| Naviter Wealth, LLC added | 90,481 | $6M | 0.2% | 2026-Q2 |
| WELLS FARGO & COMPANY/MN added | 87,435 | $6M | 0.2% | 2026-Q2 |
| BNP PARIBAS FINANCIAL MARKETS added | 87,367 | $6M | 0.2% | 2026-Q2 |
| Moerus Capital Management LLC trimmed | 82,251 | $5M | 0.1% | 2026-Q2 |
| Legal & General Group Plc trimmed | 82,100 | $5M | 0.1% | 2026-Q2 |
| BOOTHBAY FUND MANAGEMENT, LLC added | 81,133 | $5M | 0.1% | 2026-Q2 |
| First Pacific Advisors, LP trimmed | 76,423 | $5M | 0.1% | 2026-Q2 |
| ALLIANCEBERNSTEIN L.P. added | 66,959 | $6M | 0.2% | 2026-Q2 |
| Connor, Clark & Lunn Investment Management Ltd. trimmed | 65,938 | $4M | 0.1% | 2026-Q2 |
| NORGES BANK trimmed | 65,018 | $4M | 0.1% | 2026-Q2 |
| FIRST TRUST ADVISORS LP trimmed | 63,583 | $4M | 0.1% | 2026-Q2 |
| Vident Advisory, LLC added | 63,258 | $4M | 0.1% | 2026-Q2 |
| SIR Capital Management, L.P. added | 61,850 | $4M | 0.1% | 2026-Q2 |
| Empowered Funds, LLC added | 61,172 | $4M | 0.1% | 2026-Q2 |
| Russell Investments Group, Ltd. trimmed | 61,063 | $4M | 0.1% | 2026-Q2 |
| PRUDENTIAL FINANCIAL INC trimmed | 59,681 | $4M | 0.1% | 2026-Q2 |
| FIFTH THIRD BANCORP added | 58,474 | $4M | 0.1% | 2026-Q2 |
| HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC trimmed | 55,800 | $4M | 0.1% | 2026-Q2 |
| WITTENBERG INVESTMENT MANAGEMENT, INC. trimmed | 54,062 | $4M | 0.1% | 2026-Q2 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP added | 53,439 | $4M | 0.1% | 2026-Q2 |
| Kennondale Capital Management LLC added | 50,603 | $3M | 0.1% | 2026-Q2 |
| Mraz, Amerine & Associates, Inc. trimmed | 49,433 | $3M | 0.1% | 2026-Q2 |
| CAPSTONE INVESTMENT ADVISORS, LLC added | 49,103 | $3M | 0.1% | 2026-Q2 |
| DEUTSCHE BANK AG\ added | 48,958 | $3M | 0.1% | 2026-Q2 |
| ENVESTNET ASSET MANAGEMENT INC added | 48,852 | $3M | 0.1% | 2026-Q2 |
| Orchard Capital Management, LLC added | 48,760 | $3M | 0.1% | 2026-Q2 |
| O'SHAUGHNESSY ASSET MANAGEMENT, LLC trimmed | 47,550 | $3M | 0.1% | 2026-Q2 |
| Creative Planning added | 46,959 | $3M | 0.1% | 2026-Q2 |
| AQR CAPITAL MANAGEMENT LLC added | 46,810 | $3M | 0.1% | 2026-Q2 |
| Lloyd Harbor Capital Management, LLC trimmed | 45,000 | $3M | 0.1% | 2026-Q2 |
| JPMORGAN CHASE & CO trimmed | 43,690 | $3M | 0.1% | 2026-Q2 |
| Hara Capital LLC trimmed | 43,448 | $3M | 0.1% | 2026-Q2 |
| IQ EQ FUND MANAGEMENT (SINGAPORE) PRIVATE Ltd | 41,000 | $3M | 0.1% | 2026-Q2 |
| VELA Investment Management, LLC added | 38,540 | $3M | 0.1% | 2026-Q2 |
| EXCHANGE TRADED CONCEPTS, LLC added | 36,780 | $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.