Tidewater Inc. (TDW) Ownership
TDW ownership summary
as of October 18, 2026- Institutions
- 119.1% of shares outstanding
- Insiders
- 1.69% of shares outstanding
- Shares outstanding
- 49.8M
- Float
- 46.0M shares available to trade
- Short interest
- 15.02% 6.0M shares short
- Days to cover
- 9.86 short interest down 2.2% vs prior month
- Institutions 119.10%
- Insiders 1.69%
TDW top institutional holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | BlackRock Inc | 15.18% | 7.6M | $600.4M | +307,421 (+4.2%) | June 30, 2026 |
| 2 | T. Rowe Price Associates, Inc. | 7.40% | 3.7M | $292.8M | +476,310 (+14.9%) | June 30, 2026 |
| 3 | Robotti Robert | 5.84% | 2.9M | $231.1M | −14,309 (−0.5%) | June 30, 2026 |
| 4 | Neuberger Berman Group LLC | 5.63% | 2.8M | $222.9M | −467,965 (−14.3%) | June 30, 2026 |
| 5 | Vanguard Portfolio Management, LLC | 5.55% | 2.8M | $219.6M | +135,559 (+5.2%) | June 30, 2026 |
| 6 | Dimensional Fund Advisors, Inc. | 4.18% | 2.1M | $165.5M | +243,111 (+13.2%) | June 30, 2026 |
| 7 | State Street Corp | 4.08% | 2.0M | $161.5M | +82,557 (+4.2%) | June 30, 2026 |
| 8 | Vanguard Capital Management, LLC | 3.93% | 2.0M | $155.3M | +10,416 (+0.5%) | June 30, 2026 |
| 9 | Baillie Gifford & Co Limited. | 3.36% | 1.7M | $132.8M | +1.0M (+154.9%) | June 30, 2026 |
| 10 | American Century Companies Inc | 3.25% | 1.6M | $128.6M | +282,494 (+21.2%) | June 30, 2026 |
| 11 | Wellington Management Company LLP | 2.97% | 1.5M | $117.3M | +147,189 (+11.1%) | June 30, 2026 |
| 12 | Sourcerock Group LLC | 2.82% | 1.4M | $111.7M | +981,471 (+231.7%) | June 30, 2026 |
| 13 | Geode Capital Management, LLC | 2.70% | 1.3M | $107.0M | +203,878 (+17.9%) | June 30, 2026 |
| 14 | Citadel Advisors Llc | 2.51% | 1.2M | $99.2M | +1.0M (+415.0%) | June 30, 2026 |
| 15 | UBS Group AG | 2.12% | 1.1M | $83.9M | −455,615 (−30.1%) | June 30, 2026 |
| 16 | Third Avenue Management LLC | 1.88% | 934K | $74.3M | +12,940 (+1.4%) | June 30, 2026 |
| 17 | Frontier Capital Management CO Inc | 1.80% | 895K | $71.1M | −177,997 (−16.6%) | June 30, 2026 |
| 18 | Morgan Stanley - Brokerage Accounts | 1.72% | 858K | $68.2M | +294,320 (+52.2%) | June 30, 2026 |
| 19 | Van Eck Associates Corporation | 1.54% | 764K | $60.8M | −97,291 (−11.3%) | June 30, 2026 |
| 20 | Hosking Partners LLP | 1.23% | 610K | $48.5M | −52,811 (−8.0%) | June 30, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 14 holders added 5.2M shares and 6 cut 1.3M.
TDW top mutual fund and ETF holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | iShares Core S&P Small-Cap ETF | 5.57% | 2.8M | $220.2M | — | September 30, 2026 |
| 2 | Avantis US Small Cap Value ETF | 3.04% | 1.5M | $120.4M | +2,304 (+0.2%) | September 30, 2026 |
| 3 | Vanguard MStar Total Stk Mkt Idx Invest | 2.70% | 1.3M | $106.9M | −1,956 (−0.1%) | August 31, 2026 |
| 4 | Neuberger Genesis Inv | 2.68% | 1.3M | $105.8M | −81,051 (−5.7%) | September 30, 2026 |
| 5 | iShares Russell 2000 ETF | 2.61% | 1.3M | $103.2M | −14,976 (−1.1%) | September 30, 2026 |
| 6 | Vanguard Small Cap Index | 1.91% | 953K | $75.7M | −20,449 (−2.1%) | September 30, 2026 |
| 7 | T. Rowe Price Mid-Cap Value | 1.77% | 881K | $70.0M | −269,500 (−23.4%) | September 30, 2026 |
| 8 | Vanguard Explorer Inv | 1.56% | 778K | $61.8M | +30,560 (+4.1%) | June 30, 2026 |
| 9 | Third Avenue Value Instl | 1.36% | 677K | $53.9M | — | June 30, 2026 |
| 10 | VanEck Oil Services ETF | 1.19% | 594K | $47.2M | — | September 30, 2026 |
| 11 | Fidelity Small Cap Index | 1.10% | 548K | $43.6M | +4,543 (+0.8%) | July 31, 2026 |
| 12 | Vanguard MStar Small Cap Growth Indx Inv | 1.07% | 530K | $42.1M | −29,068 (−5.2%) | September 30, 2026 |
| 13 | T. Rowe Price New Horizons | 0.96% | 480K | $38.1M | — | September 30, 2026 |
| 14 | iShares Russell 2000 Growth ETF | 0.94% | 469K | $37.3M | −593 (−0.1%) | September 30, 2026 |
| 15 | T. Rowe Price Integrated US Sm Gr Eq | 0.91% | 454K | $36.1M | −20,100 (−4.2%) | September 30, 2026 |
| 16 | iShares S&P Small-Cap 600 Growth ETF | 0.86% | 428K | $34.0M | — | September 30, 2026 |
| 17 | State Street SPDR Port S&P 600 Sm CpETF | 0.85% | 421K | $33.5M | — | September 30, 2026 |
| 18 | Touchstone Small Company A | 0.76% | 379K | $30.1M | −147,083 (−28.0%) | September 30, 2026 |
| 19 | DFA US Targeted Value I | 0.73% | 364K | $29.0M | +4,113 (+1.1%) | August 31, 2026 |
| 20 | Voya Small Cap Growth I | 0.71% | 353K | $28.0M | +6,870 (+2.0%) | September 30, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
TDW insider transactions
latest 9| Date | Name | Transaction | Price | Shares | Value |
|---|---|---|---|---|---|
| 2026-03-05 | Daniel A Hudson | Sell | $80.56 | 5,195 | $418,509 |
| 2026-03-05 | Samuel R Rubio | Sell | $80.05 | 22,461 | $1.8M |
| 2026-02-23 | Daniel A Hudson | Sell | $77.50 | 15,000 | $1.2M |
| 2026-02-11 | Daniel A Hudson | Sell | $70.01 | 10,000 | $700,100 |
| 2025-08-05 | Daniel A Hudson | Sell | $57.56 | 10,000 | $575,600 |
| 2025-07-08 | Daniel A Hudson | Sell | $50.02 | 5,000 | $250,100 |
| 2025-06-04 | Robert Robotti | Buy | $42.05 | 15,000 | $630,750 |
| 2025-06-03 | Robert Robotti | Buy | $42.14 | 10,000 | $421,400 |
| 2025-05-30 | Robert Robotti | Buy | $40.55 | 560 | $22,708 |
Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.
TDW shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns TDW
Institutional investors own 119.1% of Tidewater's shares and insiders 1.69%. The largest holder is BlackRock Inc with 15.18% of the shares (7.6M), as of June 30, 2026. Among the top 20 institutions, 14 added shares and 6 reduced their stake in the latest filings. Short interest is 15.02% of the float, or 9.86 days of average trading volume. The share count rose 230.4% since 2014.
Related: TDW analyst forecast, TDW key metrics. See the TDW stock overview for the latest quote and news.
TDW ownership FAQ
Who owns the most Tidewater stock?
The largest shareholders of Tidewater are BlackRock Inc (15.18%), T. Rowe Price Associates, Inc. (7.40%), Robotti Robert (5.84%), Neuberger Berman Group LLC (5.63%), Vanguard Portfolio Management, LLC (5.55%).
What percentage of Tidewater is owned by institutions?
Institutions hold 119.1% of Tidewater's shares outstanding; insiders hold 1.69%.
Which funds own Tidewater?
The largest fund holders of Tidewater are iShares Core S&P Small-Cap ETF (5.57%), Avantis US Small Cap Value ETF (3.04%), Vanguard MStar Total Stk Mkt Idx Invest (2.70%), Neuberger Genesis Inv (2.68%), iShares Russell 2000 ETF (2.61%).
What is Tidewater's short interest?
6.0M shares of Tidewater were sold short, 15.02% of the float; at the average daily volume it would take 9.86 days to cover.
Are insiders buying or selling Tidewater?
Of the latest 9 reported insider transactions in Tidewater (since May 30, 2025), 3 were purchases and 6 were sales.
How many shares of Tidewater are outstanding?
Tidewater has 49.8M shares outstanding, of which 46.0M are in the public float.