Star Bulk Carriers Corp.
US ˙ NasdaqGS ˙ MHY8162K2046

SecuritySBLK / Star Bulk Carriers Corp.
InstitutionAdvisor Group Holdings, Inc.
Latest Disclosed Ownership19,595 shares
Latest Disclosed Value $ 450,116
Advisor Group Holdings, Inc. reports 60.95% decrease in ownership of SBLK / Star Bulk Carriers Corp.

On May 15, 2026 - Advisor Group Holdings, Inc. filed a 13F-HR form disclosing ownership of 19,595 shares of Star Bulk Carriers Corp. (US:SBLK) valued at $450,097 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 50,182 shares of Star Bulk Carriers Corp.. This represents a change in shares of -60.95% during the quarter. The current value of the position is $535,335 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)
2026-05-15 2026-03-31 13F STAR BULK CARRIERS SHS PAR Y8162K204 19,595 -30,587 -60.95 450 -53.32 0.0004
2026-02-17 2025-12-31 13F STAR BULK CARRIERS SHS PAR Y8162K204 50,182 -29,075 -36.68 965 -34.91 0.0014
2025-11-14 2025-09-30 13F STAR BULK CARRIERS SHS PAR Y8162K204 79,257 -71,146 -47.30 1,481 -42.91 0.0021
2025-09-04 2025-06-30 13F/A-1 STAR BULK CARRIERS SHS PAR Y8162K204 150,403 -13,244 -8.09 2,595 1.89 0.0046
2025-08-13 2025-06-30 13F STAR BULK CARRIERS SHS PAR Y8162K204 47,560 -116,087 713 0.0008
2025-05-12 2025-03-31 13F STAR BULK CARRIERS SHS PAR Y8162K204 163,647 116,478 246.94 2,547 261.13 0.0057
2025-06-06 2024-12-31 13F/A-1 STAR BULK CARRIERS SHS PAR Y8162K204 47,169 -5,965 -11.23 705 -43.96 0.0016
2025-02-07 2024-12-31 13F STAR BULK CARRIERS SHS PAR Y8162K204 27,083 -26,051 640 0.0016
2024-11-13 2024-09-30 13F STAR BULK CARRIERS SHS PAR Y8162K204 53,134 -4,293 -7.48 1,259 -10.14 0.0028
2024-08-13 2024-06-30 13F STAR BULK CARRIERS SHS PAR Y8162K204 57,427 -24,536 -29.94 1,400 -28.43 0.0033
2024-05-10 2024-03-31 13F STAR BULK CARRIERS SHS PAR Y8162K204 81,963 -37,877 -31.61 1,956 -23.20 0.0044
2024-02-12 2023-12-31 13F STAR BULK CARRIERS SHS PAR Y8162K204 119,840 -37,916 -24.03 2,548 -16.24 0.0045
2023-11-13 2023-09-30 13F STAR BULK CARRIERS SHS PAR Y8162K204 157,756 60,328 61.92 3,042 76.39 0.0045
2023-08-21 2023-06-30 13F/A-1 STAR BULK CARRIERS SHS PAR Y8162K204 97,428 -23,023 -19.11 1,724 -32.21 0.0031
2023-08-10 2023-06-30 13F STAR BULK CARRIERS SHS PAR Y8162K204 97,428 -23,023 1,724 0.0005
2023-05-12 2023-03-31 13F STAR BULK CARRIERS SHS PAR Y8162K204 120,451 28,544 31.06 2,544 44.00 0.0048
2023-02-10 2022-12-31 13F STAR BULK CARRIERS SHS PAR Y8162K204 91,907 21,758 31.02 1,766 44.16 0.0036
2022-11-14 2022-09-30 13F STAR BULK CARRIERS SHS PAR Y8162K204 70,149 12,808 22.34 1,225 -14.40 0.0028
2022-08-10 2022-06-30 13F STAR BULK CARRIERS SHS PAR Y8162K204 57,341 23,214 68.02 1,431 -57.09 0.0032
2022-05-04 2022-03-31 13F STAR BULK CARRIERS SHS PAR Y8162K204 34,127 -58,572 -63.19 3,335 58.66 0.0065
2022-02-03 2021-12-31 13F STAR BULK CARRIERS SHS PAR Y8162K204 92,699 -35,580 -27.74 2,102 -31.82 0.0040
2021-11-05 2021-09-30 13F STAR BULK CARRIERS SHS PAR Y8162K204 128,279 -4,613 -3.47 3,083 1.08 0.0064
2021-08-02 2021-06-30 13F STAR BULK CARRIERS SHS PAR Y8162K204 132,892 52,618 65.55 3,050 158.69 0.0066
2021-05-13 2021-03-31 13F STAR BULK CARRIERS SHS PAR Y8162K204 80,274 75,573 1,607.59 1,179 2,707.14 0.0028
2021-02-10 2020-12-31 13F STAR BULK CARRIERS SHS PAR Y8162K204 4,701 1,900 67.83 42 121.05 0.0001
2020-11-12 2020-09-30 13F STAR BULK CARRIERS SHS PAR Y8162K204 2,801 1,600 133.22 19 137.50 0.0001
2020-08-14 2020-06-30 13F STAR BULK CARRIERS SHS PAR Y8162K204 1,201 0 0.00 8 14.29 0.0000
2020-05-18 2020-03-31 13F STAR BULK CARRIERS SHS PAR Y8162K204 1,201 1,201 7 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.