Diana Shipping Inc.
US ˙ NYSE ˙ MHY2066G1044

SecurityDSX / Diana Shipping Inc.
InstitutionSei Investments Co
Latest Disclosed Ownership13,516 shares
Latest Disclosed Value $ 22,437
Sei Investments Co ownership in DSX / Diana Shipping Inc.

On February 13, 2026 - Sei Investments Co filed a 13F-HR form disclosing ownership of 13,516 shares of Diana Shipping Inc. (US:DSX) valued at $22,437 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 13,516 shares of Diana Shipping Inc.. This represents a change in shares of 0.00% during the quarter. The current value of the position is $32,168 USD.

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)
2026-02-13 2025-12-31 13F DIANA SHIPPING COM Y2066G104 13,516 0 0.00 22 0.00 0.0000
2025-11-13 2025-09-30 13F DIANA SHIPPING COM Y2066G104 13,516 13,516 23 0.0000
2021-08-06 2021-06-30 13F DIANA SHIPPING COM Y2066G104 0 -159,640 -100.00 0 -100.00
2021-05-12 2021-03-31 13F DIANA SHIPPING COM Y2066G104 159,640 -284,217 -64.03 477 -44.34 0.0012
2021-02-08 2020-12-31 13F DIANA SHIPPING COM Y2066G104 443,857 13,831 3.22 857 41.42 0.0022
2020-12-04 2020-09-30 13F/A-1 DIANA SHIPPING COM Y2066G104 430,026 92,416 27.37 606 19.76 0.0018
2020-11-06 2020-09-30 13F DIANA SHIPPING COM Y2066G104 430,026 92,416 606 1,459.1133
2020-08-17 2020-06-30 13F/A-1 DIANA SHIPPING COM Y2066G104 337,610 0 0.00 506 1.20 0.0016
2020-08-11 2020-06-30 13F DIANA SHIPPING COM Y2066G104 275,735 -61,875 858 2,327.3707
2020-05-14 2020-03-31 13F DIANA SHIPPING COM Y2066G104 337,610 61,875 22.44 500 -41.72 0.0018
2020-02-06 2019-12-31 13F DIANA SHIPPING COM Y2066G104 275,735 -10,289 -3.60 858 -11.27 0.0026
2019-11-12 2019-09-30 13F DIANA SHIPPING COM Y2066G104 286,024 159,335 125.77 967 130.79 0.0025
2019-08-14 2019-06-30 13F DIANA SHIPPING COM Y2066G104 126,689 650 0.52 419 18.03 0.0014
2019-05-15 2019-03-31 13F DIANA SHIPPING COM Y2066G104 126,039 126,039 355 0.0012
2018-08-03 2018-06-30 13F DIANA SHIPPING COM Y2066G104 0 -885 -100.00 0 -100.00
2018-05-11 2018-03-31 13F DIANA SHIPPING COM Y2066G104 885 -896 -50.31 3 -57.14 0.0000
2018-02-08 2017-12-31 13F DIANA SHIPPING COM Y2066G104 1,781 1,781 7 0.0000
2017-11-06 2017-09-30 13F DIANA SHIPPING COM Y2066G104 0 -4 -100.00 0 0.0000
2017-07-31 2017-06-30 13F DIANA SHIPPING COM Y2066G104 4 0 0.00 0 0.0000
2017-05-05 2017-03-31 13F DIANA SHIPPING COM Y2066G104 4 -1 -20.00 0 0.0000
2017-02-02 2016-12-31 13F DIANA SHIPPING COM Y2066G104 5 -75 -93.75 0 0.0000
2016-11-04 2016-09-30 13F DIANA SHIPPING COM Y2066G104 80 -2 -2.44 0 0.0000
2016-08-11 2016-06-30 13F DIANA SHIPPING COM Y2066G104 82 82 0.00 0 0.0000
2016-05-10 2016-03-31 13F/A-1 DIANA SHIPPING COM Y2066G104 0 0 0 0.0000
2016-02-03 2015-12-31 13F DIANA SHIPPING COM Y2066G104 0 -2 -100.00 0 -100.00 0.0000
2015-11-02 2015-09-30 13F/A-1 DIANA SHIPPING COM Y2066G104 2 2 0 0.0000
2015-10-30 2015-09-30 13F DIANA SHIPPING COM Y2066G104 2 1
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.