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Tidewater Inc. (TDW) institutional ownership

Latest close $77.44 Jul 23, 2026
Market cap$3.5B 52-week range SectorEnergy
Funds holding · Q1 2026
352
reported TDW position changes
Top owners · Q1 2026
No disclosed owners are available.
Institutional activity · Q1 2026
Net bought $209M
208 buyers · 144 sellers

Tidewater Inc. (TDW) price and institutional activity

Dates

Q1 2026

$574M bought by 208 investors
Wellington Management Group LLP$82MUBS Group AG$53M +206 more
$365M sold by 144 investors
T. Rowe Price Associates-$80MCerity Partners LLC-$42M +142 more
Bought Sold Totals per quarter; hover a bar for the names.

Tidewater Inc. (TDW) institutional activity · 352

Investor Type Est. change Change Δ Own Date
Wellington Management Group LLP · Added +$82M
Change +1.2M Δ Own +838.1% Date Q1 2026
Wellington Management Group LLP Added· Q1 2026 +$82M +1.2M +838.1% Q1 2026
T. Rowe Price Associates · Reduced −$80M
Change −1.1M Date Q1 2026
T. Rowe Price Associates Reduced· Q1 2026 −$80M −1.1M Q1 2026
UBS Group AG · Added +$53M
Change +759K Date Q1 2026
UBS Group AG Added· Q1 2026 +$53M +759K Q1 2026
Baillie Gifford & Co · New +$45M
Change +655K Date Q1 2026
Baillie Gifford & Co New· Q1 2026 +$45M +655K Q1 2026
Driehaus Capital Management LLC · Added +$42M
Change +611K Date Q1 2026
Driehaus Capital Management LLC Added· Q1 2026 +$42M +611K Q1 2026
Cerity Partners LLC · Reduced −$42M
Change −600K Date Q1 2026
Cerity Partners LLC Reduced· Q1 2026 −$42M −600K Q1 2026
Neuberger Berman Group LLC · Reduced −$30M
Change −438K Date Q1 2026
Neuberger Berman Group LLC Reduced· Q1 2026 −$30M −438K Q1 2026
Sourcerock Group LLC · New +$29M
Change +424K Date Q1 2026
Sourcerock Group LLC New· Q1 2026 +$29M +424K Q1 2026
BlackRock · Added +$24M
Change +344K Date Q1 2026
BlackRock Added· Q1 2026 +$24M +344K Q1 2026
Old West Investment Management, LLC · Added +$23M
Change +331K Date Q1 2026
Old West Investment Management, LLC Added· Q1 2026 +$23M +331K Q1 2026
Van Eck Associates Corp · Added +$22M
Change +316K Date Q1 2026
Van Eck Associates Corp Added· Q1 2026 +$22M +316K Q1 2026
Keybank National Association · New +$21M
Change +305K Date Q1 2026
Keybank National Association New· Q1 2026 +$21M +305K Q1 2026
Canoe Financial LP · New +$19M
Change +275K Date Q1 2026
Canoe Financial LP New· Q1 2026 +$19M +275K Q1 2026
Fideuram - Intesa Sanpaolo Private Banking S.P.A. · Added +$17M
Change +244K Date Q1 2026
Fideuram - Intesa Sanpaolo Private Banking S.P.A. Added· Q1 2026 +$17M +244K Q1 2026
Summittx Capital, L.P. · Exited −$16M
Change −226K Δ Own −100.0% Date Q1 2026
Summittx Capital, L.P. Exited· Q1 2026 −$16M −226K −100.0% Q1 2026
Data through Q1 2026 · filed Jun 9, 2026
15 of 352

Famous investor activity in Tidewater Inc. (TDW)

Tidewater Inc. (TDW) insider trading

Company insiders, action and economics first; trade and filed dates last.
Dates
Insider Title Type Price Qty Value Owned ΔOwn Trade date Filed date
Raspino Louis · Director Grant (A) 2K
Owned 49K Trade date Jun 16, 2026 Filed date Jun 18, 2026
Raspino Louis Director Grant (A) 2K 49K Jun 16, 2026 Jun 18, 2026
Cougle Melissa · Director Grant (A) 2K
Owned 27K Trade date Jun 16, 2026 Filed date Jun 18, 2026
Cougle Melissa Director Grant (A) 2K 27K Jun 16, 2026 Jun 18, 2026
Zabrocky Lois K. · Director Grant (A) 2K
Owned 54K Trade date Jun 16, 2026 Filed date Jun 18, 2026
Zabrocky Lois K. Director Grant (A) 2K 54K Jun 16, 2026 Jun 18, 2026
Fagerstal Dick · Director Grant (A) 2K
Owned 76K Trade date Jun 16, 2026 Filed date Jun 18, 2026
Fagerstal Dick Director Grant (A) 2K 76K Jun 16, 2026 Jun 18, 2026
Traub Kenneth · Director Grant (A) 2K
Owned 74K Trade date Jun 16, 2026 Filed date Jun 18, 2026
Traub Kenneth Director Grant (A) 2K 74K Jun 16, 2026 Jun 18, 2026
Robotti Robert · Director Grant (A) $125K
Price $70.99 Qty 2K Owned 2.2M Trade date Jun 16, 2026 Filed date Jun 18, 2026
Robotti Robert Director Grant (A) $70.99 2K $125K 2.2M Jun 16, 2026 Jun 18, 2026
Robotti Robert · Director Gift (G) -17K
Owned 2.2M Trade date Jun 12, 2026 Filed date Jun 12, 2026
Robotti Robert Director Gift (G) -17K 2.2M Jun 12, 2026 Jun 12, 2026
Cougle Melissa · Director Grant (A) $31K
Price $83.44 Qty 374 Owned 25K Trade date Apr 1, 2026 Filed date Apr 2, 2026
Cougle Melissa Director Grant (A) $83.44 374 $31K 25K Apr 1, 2026 Apr 2, 2026
Robotti Robert · Director Grant (A) $31K
Price $83.44 Qty 374 Owned 2.2M Trade date Apr 1, 2026 Filed date Apr 2, 2026
Robotti Robert Director Grant (A) $83.44 374 $31K 2.2M Apr 1, 2026 Apr 2, 2026
Rubio Samuel R. · Officer 3 operations -$347K
Price $72.48 Qty -5K Owned 68K Trade date Mar 23, 2026 Filed date Mar 23, 2026
Rubio Samuel R. Officer 3 operations $72.48 -5K -$347K 68K Mar 23, 2026 Mar 23, 2026
Kneen Quintin · Director, Officer 3 operations -$1.0M
Price $72.48 Qty -14K Owned 365K Trade date Mar 23, 2026 Filed date Mar 23, 2026
Kneen Quintin Director, Officer 3 operations $72.48 -14K -$1.0M 365K Mar 23, 2026 Mar 23, 2026
Hudson Daniel A. · Officer 3 operations -$299K
Price $72.48 Qty -4K Owned 55K Trade date Mar 23, 2026 Filed date Mar 23, 2026
Hudson Daniel A. Officer 3 operations $72.48 -4K -$299K 55K Mar 23, 2026 Mar 23, 2026
Middleton Piers Dayer · Officer 3 operations -$198K
Price $72.48 Qty -3K Owned 32K Trade date Mar 23, 2026 Filed date Mar 23, 2026
Middleton Piers Dayer Officer 3 operations $72.48 -3K -$198K 32K Mar 23, 2026 Mar 23, 2026
Middleton Piers Dayer · Officer Grant (A) $500K
Price $75.27 Qty 7K Owned 32K Trade date Mar 18, 2026 Filed date Mar 20, 2026
Middleton Piers Dayer Officer Grant (A) $75.27 7K $500K 32K Mar 18, 2026 Mar 20, 2026
Rubio Samuel R. · Officer Tax withholding or exercise payment (F) -$284K
Price $75.27 Qty -4K Owned 66K Trade date Mar 18, 2026 Filed date Mar 20, 2026
Rubio Samuel R. Officer Tax withholding or exercise payment (F) $75.27 -4K -$284K 66K Mar 18, 2026 Mar 20, 2026
15 of 31
15 of 31 Sign in to continue to older insider transactions.

Tidewater Inc. (TDW) activist and large shareholders

Dates
Owner/Filer identity Shares reported % of shares outstanding Filing date
BlackRock Inc. 6.6M
% of shares outstanding 12.5% Filing date Jul 8, 2024
BlackRock Inc. 6.6M 12.5% Jul 8, 2024
Vanguard Group Inc 5.4M
% of shares outstanding 10.3% Filing date Jul 10, 2024
Vanguard Group Inc 5.4M 10.3% Jul 10, 2024
Ravenswood Investment Co L.P. 2.9M
% of shares outstanding 7.0% Filing date May 4, 2021
Ravenswood Investment Co L.P. 2.9M 7.0% May 4, 2021
T. Rowe Price Associates, Inc. 3.2M
% of shares outstanding 6.5% Filing date May 15, 2026
T. Rowe Price Associates, Inc. 3.2M 6.5% May 15, 2026
FMR LLC 3.4M
% of shares outstanding 6.4% Filing date Nov 12, 2024
FMR LLC 3.4M 6.4% Nov 12, 2024
Vanguard Portfolio Management 2.7M
% of shares outstanding 5.4% Filing date Apr 29, 2026
Vanguard Portfolio Management 2.7M 5.4% Apr 29, 2026
Neuberger Berman Group LLC 2.5M
% of shares outstanding 4.7% Filing date Oct 4, 2024
Neuberger Berman Group LLC 2.5M 4.7% Oct 4, 2024
Robotti Robert 2.5M
% of shares outstanding 4.7% Filing date May 21, 2024
Robotti Robert 2.5M 4.7% May 21, 2024
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Tidewater Inc. (TDW) ownership FAQ

Who owns TDW?

352 reporting institutions disclosed TDW position changes in the Q1 2026 snapshot.

How is institutional activity calculated?

For each manager, WhoBought compares accepted consecutive 13F share counts. Share change is current shares minus prior shares. Estimated dollar change is that signed share change multiplied by the split-adjusted quarter-mean close. The activity table on this page uses Q1 2026.

What are activist and large shareholder filings?

An investor crossing 5% of a share class generally files Schedule 13D for activist intent or Schedule 13G for a passive position. The technical form names appear here rather than in the activity rows.

Where does this data come from?

Ownership and institutional activity come from SEC Form 13F filings. Insider activity comes from SEC Form 4, and large-shareholder activity from SEC Schedules 13D and 13G. FMP supplies price data only. Company logos use the local verified Parqet cache with one shared fallback.

Why are ownership reports delayed?

Form 13F is a quarterly disclosure and is normally filed after the quarter ends. Every ownership and activity value therefore names its represented period; it is not presented as a live position.

How are missing table values shown?

A muted dash marks a missing table value. It means the filing omitted the value, comparable data is unavailable, or no prior position exists for comparison.