Tidewater Inc.
MX ˙ BMV ˙ US88642R1095
SecurityMX:TDW / Tidewater Inc.
InstitutionProShare Advisors LLC
Latest Disclosed Ownership7,624 shares
Latest Disclosed Value $ 636,986
ProShare Advisors LLC reports 19.98% decrease in ownership of TDW / Tidewater Inc.

On April 24, 2026 - ProShare Advisors LLC filed a 13F-HR form disclosing ownership of 7,624 shares of Tidewater Inc. (MX:TDW) valued at $636,986 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 6, 2026 disclosing 9,528 shares of Tidewater Inc.. This represents a change in shares of -19.98% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-04-24 2026-03-31 13F TIDEWATER INC COM 88642R109 7,624 -1,904 -19.98 637 32.22 0.0009
2026-02-06 2025-12-31 13F TIDEWATER INC COM 88642R109 9,528 311 3.37 481 -2.04 0.0008
2025-11-06 2025-09-30 13F TIDEWATER INC COM 88642R109 9,217 -1,983 -17.71 492 -4.84 0.0010
2025-08-07 2025-06-30 13F TIDEWATER INC COM 88642R109 11,200 -273 -2.38 517 6.61 0.0010
2025-05-08 2025-03-31 13F TIDEWATER INC COM 88642R109 11,473 -3,215 -21.89 485 -39.73 0.0011
2025-02-14 2024-12-31 13F TIDEWATER INC COM 88642R109 14,688 4,522 44.48 804 10.15 0.0018
2024-11-14 2024-09-30 13F TIDEWATER INC COM 88642R109 10,166 2,970 41.27 730 6.42 0.0018
2024-08-13 2024-06-30 13F TIDEWATER INC COM 88642R109 7,196 -1,153 -13.81 685 -10.81 0.0018
2024-05-08 2024-03-31 13F TIDEWATER INC COM 88642R109 8,349 656 8.53 768 38.63 0.0020
2024-02-14 2023-12-31 13F TIDEWATER INC COM 88642R109 7,693 1,520 24.62 555 26.48 0.0017
2023-11-13 2023-09-30 13F TIDEWATER INC COM 88642R109 6,173 -11 -0.18 439 28.07 0.0014
2023-08-10 2023-06-30 13F TIDEWATER INC COM 88642R109 6,184 702 12.81 343 41.91 0.0010
2023-05-26 2023-03-31 13F/A-1 TIDEWATER INC COM 88642R109 5,482 -510 -8.51 242 9.55 0.0007
2023-05-12 2023-03-31 13F TIDEWATER INC COM 88642R109 5,482 -510 242 0.0008
2023-02-02 2022-12-31 13F TIDEWATER INC COM 88642R109 5,992 5,992 221 0.0008
2021-11-12 2021-09-30 13F TIDEWATER INC COM 88642R109 0 -10,542 -100.00 0 -100.00
2021-08-13 2021-06-30 13F TIDEWATER INC COM 88642R109 10,542 -258 -2.39 127 -5.93 0.0004
2021-05-14 2021-03-31 13F TIDEWATER INC COM 88642R109 10,800 10,800 135 0.0004
2017-08-11 2017-06-30 13F TIDEWATER COM 886423102 0 -11,128 -100.00 0 -100.00
2017-05-12 2017-03-31 13F/A-2 TIDEWATER COM 886423102 11,128 11,128 0.00 13 0.00 0.0001
2017-05-08 2017-03-31 13F/A-1 TIDEWATER COM 886423102 11,128 0 13 0.0001
2017-04-25 2017-03-31 13F TIDEWATER COM 886423102 11,128 13
2016-05-06 2016-03-31 13F TIDEWATER COM 886423102 0 -12,440 -100.00 0 -100.00
2016-02-05 2015-12-31 13F TIDEWATER COM 886423102 12,440 12,440 0.00 87 0.0011
2015-11-06 2015-09-30 13F TIDEWATER COM 886423102 0 -20,142 -100.00 0 -100.00
2015-08-11 2015-06-30 13F TIDEWATER COM 886423102 20,142 5,459 37.18 458 62.99 0.0063
2015-05-08 2015-03-31 13F TIDEWATER COM 886423102 14,683 14,683 0.00 281 0.0033
2015-01-30 2014-12-31 13F TIDEWATER COM 886423102 0 -31,197 -100.00 0 -100.00
2014-11-06 2014-09-30 13F TIDEWATER COM 886423102 31,197 2,540 8.86 1,218 -24.30 0.0161
2014-08-08 2014-06-30 13F TIDEWATER COM 886423102 28,657 18,577 184.30 1,609 228.37 0.0208
2014-05-07 2014-03-31 13F TIDEWATER COM 886423102 10,080 -28,173 -73.65 490 -78.39 0.0061
2014-02-04 2013-12-31 13F TIDEWATER COM 886423102 38,253 31,850 497.42 2,267 496.58 0.0338
2013-11-07 2013-09-30 13F TIDEWATER COM 886423102 6,403 741 13.09 380 17.65 0.0090
2013-07-25 2013-06-30 13F TIDEWATER COM 886423102 5,662 5,662 323 0.0063
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.