Tidewater Inc.
DE ˙ DB ˙ US88642R1095
63,62 € 0,00 (0,00%)
2026-06-04
DEL PRIS
SecurityDE:TD9 / Tidewater Inc.
InstitutionUBS Group AG
Latest Disclosed Ownership1,511,390 shares
Latest Disclosed Value $ 126,276,635
UBS Group AG ownership in TD9 / Tidewater Inc.

On May 5, 2026 - UBS Group AG filed a 13F-HR form disclosing ownership of 1,511,390 shares of Tidewater Inc. (DE:TD9) valued at $108,850,308 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 29, 2026 disclosing 752,275 shares of Tidewater Inc.. This represents a change in shares of 100.91% during the quarter. The current value of the position is $96,154,632 USD.

UBS Group AG has a history of taking positions in derivatives of the underlying security (TD9) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD and put options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

DE:TD9 / Tidewater Inc. Historical Put/Call Ratio
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)
2026-05-05 2026-03-31 13F TIDEWATER INC COM 88642R109 1,511,390 759,115 100.91 126,277 232.33 0.0035
2026-01-29 2025-12-31 13F TIDEWATER INC COM 88642R109 752,275 -385,498 -33.88 37,997 -37.38 0.0062
2025-11-13 2025-09-30 13F TIDEWATER INC COM 88642R109 1,137,773 -203,097 -15.15 60,677 -1.90 0.0095
2025-08-14 2025-06-30 13F TIDEWATER INC COM 88642R109 1,340,870 842,290 168.94 61,854 193.51 0.0107
2025-05-13 2025-03-31 13F TIDEWATER INC COM 88642R109 498,580 -10,390 -2.04 21,075 -24.32 0.0039
2025-02-14 2024-12-31 13F TIDEWATER INC COM 88642R109 508,970 455,363 849.45 27,846 623.62 0.0051
2024-11-14 2024-09-30 13F TIDEWATER INC COM 88642R109 53,607 27,689 106.83 3,848 55.98 0.0008
2024-08-14 2024-06-30 13F TIDEWATER INC COM 88642R109 25,918 -37,235 -58.96 2,468 -57.54 0.0006
2024-05-13 2024-03-31 13F TIDEWATER INC COM 88642R109 63,153 -216,131 -77.39 5,810 -71.15 0.0014
2024-02-09 2023-12-31 13F TIDEWATER INC COM 88642R109 279,284 34,497 14.09 20,139 15.76 0.0060
2023-11-09 2023-09-30 13F TIDEWATER INC COM 88642R109 244,787 142,336 138.93 17,397 206.34 0.0060
2023-08-11 2023-06-30 13F TIDEWATER INC COM 88642R109 102,451 53,529 109.42 5,680 163.40 0.0019
2023-05-12 2023-03-31 13F TIDEWATER INC COM 88642R109 48,922 6,601 15.60 2,156 38.29 0.0008
2023-02-08 2022-12-31 13F TIDEWATER INC COM 88642R109 42,321 24,686 139.98 1,560 307.05 0.0006
2022-11-10 2022-09-30 13F TIDEWATER INC COM 88642R109 17,635 3,659 26.18 383 29.83 0.0002
2022-08-10 2022-06-30 13F TIDEWATER INC COM 88642R109 13,976 -9,201 -39.70 295 -41.47 0.0001
2022-05-16 2022-03-31 13F TIDEWATER INC COM 88642R109 23,177 1,455 6.70 504 116.31 0.0002
2022-02-14 2021-12-31 13F TIDEWATER INC COM 88642R109 21,722 16,700 332.54 233 281.97 0.0001
2021-11-15 2021-09-30 13F TIDEWATER INC COM 88642R109 5,022 -3,396 -40.34 61 -40.20 0.0000
2021-08-13 2021-06-30 13F TIDEWATER INC COM 88642R109 8,418 -14,954 -63.98 102 -65.19 0.0000
2021-05-12 2021-03-31 13F TIDEWATER INC COM 88642R109 23,372 6,211 36.19 293 97.97 0.0001
2021-02-11 2020-12-31 13F TIDEWATER INC COM 88642R109 17,161 4,249 32.91 148 70.11 0.0001
2020-11-12 2020-09-30 13F TIDEWATER INC COM 88642R109 12,912 -10,931 -45.85 87 -34.59 0.0000
2020-07-31 2020-06-30 13F TIDEWATER INC COM 88642R109 23,843 -2,000 -7.74 133 -27.32 0.0001
2020-05-01 2020-03-31 13F TIDEWATER INC COM 88642R109 25,843 -27,731 -51.76 183 -82.28 0.0001
2020-02-14 2019-12-31 13F TIDEWATER INC COM 88642R109 53,574 15,507 40.74 1,033 79.65 0.0004
2019-11-14 2019-09-30 13F TIDEWATER INC COM 88642R109 38,067 23,157 155.31 575 64.29 0.0002
2019-08-14 2019-06-30 13F TIDEWATER INC COM 88642R109 14,910 6,295 73.07 350 75.00 0.0001
2019-05-14 2019-03-31 13F TIDEWATER INC COM 88642R109 8,615 -25,805 -74.97 200 -69.60 0.0001
2019-02-14 2018-12-31 13F TIDEWATER INC COM 88642R109 34,420 8,365 32.11 658 -19.07 0.0003
2018-11-14 2018-09-30 13F TIDEWATER INC COM 88642R109 26,055 -54,732 -67.75 813 -65.21 0.0003
2018-08-14 2018-06-30 13F TIDEWATER INC COM 88642R109 80,787 27,672 52.10 2,337 53.75 0.0010
2018-05-15 2018-03-31 13F TIDEWATER INC COM 88642R109 53,115 530 1.01 1,520 18.47 0.0007
2018-02-14 2017-12-31 13F TIDEWATER INC COM 88642R109 52,585 25,134 91.56 1,283 60.78 0.0005
2017-11-14 2017-09-30 13F TIDEWATER INC COM 88642R109 27,451 -5,124 -15.73 798 3,369.57 0.0004
2017-11-14 2017-06-30 13F/A-1 TIDEWATER COM 886423102 32,575 27,326 520.59 23 283.33 0.0000
2017-08-14 2017-06-30 13F TIDEWATER COM 886423102 32,575 27,326 23
2017-11-14 2017-03-31 13F/A-1 TIDEWATER COM 886423102 5,249 -17,935 -77.36 6 -92.41 0.0000
2017-05-12 2017-03-31 13F TIDEWATER COM 886423102 5,249 -17,935 6
2017-02-14 2016-12-31 13F TIDEWATER COM 886423102 23,184 10,050 76.52 79 113.51 0.0000
2016-11-14 2016-09-30 13F TIDEWATER COM 886423102 13,134 6,569 100.06 37 27.59 0.0000
2016-08-12 2016-06-30 13F TIDEWATER COM 886423102 6,565 -55,354 -89.40 29 -93.14 0.0000
2016-05-12 2016-03-31 13F TIDEWATER COM 886423102 61,919 44,905 263.93 423 258.47 0.0003
2016-02-16 2015-12-31 13F TIDEWATER COM 886423102 17,014 -13,464 -44.18 118 -70.50 0.0001
2015-11-13 2015-09-30 13F TIDEWATER COM 886423102 30,478 -32,055 -51.26 400 -71.87 0.0003
2015-08-14 2015-06-30 13F TIDEWATER COM 886423102 62,533 48,929 359.67 1,422 446.92 0.0009
2015-05-14 2015-03-31 13F TIDEWATER COM 886423102 13,604 8,368 159.82 260 53.85 0.0002
2015-02-17 2014-12-31 13F TIDEWATER COM 886423102 5,236 5,236 169 0.0001
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2023-11-09 2023-09-30 13F TIDEWATER INC COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2023-08-11 2023-06-30 13F TIDEWATER INC COM Call 135,000 7,484 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2024-05-13 2024-03-31 13F TIDEWATER INC COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2024-02-09 2023-12-31 13F TIDEWATER INC COM Put 128,200 9,245 n/a n/a n/a
2016-02-16 2015-12-31 13F TIDEWATER COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2015-11-13 2015-09-30 13F TIDEWATER COM Put 22,500 0.00 296 -42.07 n/a n/a n/a
2015-08-14 2015-06-30 13F TIDEWATER COM Put 22,500 511 n/a n/a n/a
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.