Golub Capital BDC, Inc.
US ˙ NasdaqGS ˙ US38173M1027

SecurityGBDC / Golub Capital BDC, Inc.
InstitutionHirtle Callaghan & Co LLC
Latest Disclosed Value $ 12,871,156
Hirtle Callaghan & Co LLC ownership in GBDC / Golub Capital BDC, Inc.

2026-05-13 - Hirtle Callaghan & Co LLC has filed a 13F-HR form disclosing ownership of Golub Capital BDC, Inc. (US:GBDC) valued at $12,871,156 USD as of 2026-03-31. Hirtle Callaghan & Co LLC had filed a previous 13F-HR on 2026-02-04 disclosing shares of Golub Capital BDC, Inc. valued at of $13,668,274 USD. This represents a change in value of -5.83 percent 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 GOLUB CAP BDC INC COM Common Stock 38173M102 12,871 -5.83 0.4409
2026-02-04 2025-12-31 13F GOLUB CAP BDC INC COM Common Stock 38173M102 13,668 7.36 0.4654
2025-11-13 2025-09-30 13F GOLUB CAP BDC INC COM Common Stock 38173M102 12,731 -6.18 0.4475
2025-08-14 2025-06-30 13F GOLUB CAP BDC INC COM Common Stock 38173M102 13,569 6.15 0.5144
2025-05-12 2025-03-31 13F GOLUB CAP BDC INC COM Common Stock 38173M102 12,783 -7.13 0.4979
2025-02-11 2024-12-31 13F GOLUB CAP BDC INC COM Common Stock 38173M102 13,765 -1.75 0.5795
2024-11-13 2024-09-30 13F GOLUB CAP BDC INC COM Common Stock 38173M102 14,011 58.83 0.5666
2024-08-13 2024-06-30 13F GOLUB CAP BDC INC COM Common Stock 38173M102 8,822 -38.88 0.3802
2024-05-10 2024-03-31 13F GOLUB CAP BDC INC COM Common Stock 38173M102 14,433 11.19 0.6155
2024-02-13 2023-12-31 13F GOLUB CAP BDC INC COM Common Stock 38173M102 859,639 34,842 4.22 12,981 7.28 0.5917
2023-11-08 2023-09-30 13F GOLUB CAP BDC INC COM Common Stock 38173M102 824,797 -17,165 -2.04 12,100 6.45 0.6043
2023-08-10 2023-06-30 13F GOLUB CAP BDC INC COM Common Stock 38173M102 841,962 114,415 15.73 11,366 15.22 0.5424
2023-05-11 2023-03-31 13F GOLUB CAP BDC INC COM Common Stock 38173M102 727,547 86,890 13.56 9,866 17.01 0.4909
2023-02-14 2022-12-31 13F GOLUB CAP BDC INC COM Common Stock 38173M102 640,657 26,554 4.32 8,431 10.80 0.5167
2022-11-14 2022-09-30 13F GOLUB CAP BDC INC COM Common Stock 38173M102 614,103 79,075 14.78 7,609 9.73 0.5444
2022-08-15 2022-06-30 13F GOLUB CAP BDC INC COM Common Stock 38173M102 535,028 4,833 0.91 6,934 -14.01 0.4111
2022-05-13 2022-03-31 13F GOLUB CAP BDC INC COM Common Stock 38173M102 530,195 94,039 21.56 8,064 19.75 0.3903
2022-02-14 2021-12-31 13F GOLUB CAP BDC INC COM Common Stock 38173M102 436,156 6,734 19.50 0.3393
2021-11-15 2021-09-30 13F GOLUB CAP BDC INC COM Common Stock 38173M102 5,635 34.87 0.3176
2021-08-13 2021-06-30 13F GOLUB CAP BDC INC COM Common Stock 38173M102 4,178 5.48 0.2441
2021-05-06 2021-03-31 13F GOLUB CAP BDC INC COM Common Stock 38173M102 3,961 0.2600
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.