Tidewater Inc.
MX ˙ BMV ˙ US88642R1095
SecurityMX:TDW / Tidewater Inc.
InstitutionCi Investments Inc.
Latest Disclosed Ownership12,081 shares
Latest Disclosed Value $ 1,009,368
Ci Investments Inc. reports 61.21% decrease in ownership of TDW / Tidewater Inc.

On May 13, 2026 - Ci Investments Inc. filed a 13F-HR form disclosing ownership of 12,081 shares of Tidewater Inc. (MX:TDW) valued at $1,009,368 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 31,146 shares of Tidewater Inc.. This represents a change in shares of -61.21% 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)
2026-05-13 2026-03-31 13F TIDEWATER NEW COM 88642R109 12,081 -19,065 -61.21 1,009 -35.86 0.0034
2026-02-12 2025-12-31 13F TIDEWATER NEW COM 88642R109 31,146 0 0.00 1,573 157,200.00 0.0069
2025-11-12 2025-09-30 13F TIDEWATER NEW COM 88642R109 31,146 -14,979 -32.47 2 -50.00 0.0060
2025-08-12 2025-06-30 13F TIDEWATER NEW COM 88642R109 46,125 17,741 62.50 2 100.00 0.0080
2025-05-13 2025-03-31 13F TIDEWATER NEW COM 88642R109 28,384 2,829 11.07 1 0.00 0.0051
2025-02-12 2024-12-31 13F TIDEWATER NEW COM 88642R109 25,555 14,843 138.56 1 0.0053
2024-11-12 2024-09-30 13F TIDEWATER NEW COM 88642R109 10,712 10,623 11,935.96 1 0.0029
2024-08-12 2024-06-30 13F TIDEWATER NEW COM 88642R109 89 89 0 0.0000
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.