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GBDC · GOLUB CAPITAL BDC, Inc.

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$13.20 -0.01 (-0.08%) At close · Aug 21
Market Cap
$3.43B
Shares
259.65M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Holders: 320
Total Value: $1,581,046,865
Total Shares: 122,752,098

Institutional Ownership Trend

26 quarters

Holder Concentration

Across 320 13F filers · Δ vs Mar 31, 2026
Top Holder
14.3%
Sep 2023 → Jun 2026 · range 9.4% – 16.2%
−0.0 pts
Top 5
30.5%
Sep 2023 → Jun 2026 · range 28.4% – 36.3%
−0.5 pts
Top 10
45.3%
Sep 2023 → Jun 2026 · range 42.9% – 50.0%
−0.7 pts
HHI
379
Sep 2023 → Jun 2026 · range 289 – 454
Broadly held−2

Quarterly Activity

vs Mar 31, 2026
New
30
Increased
126
Decreased
107
Sold Out
60
Unchanged
57
Holder count: -30
Institutional value: +4.5%
Shares held: +2.5%

Top Buyers

vs Mar 31, 2026
Institution Added Now Holds Open

Top Sellers

vs Mar 31, 2026
Institution Sold Now Holds Open

Top New Positions

vs Mar 31, 2026
Institution Acquired Value (USD) Open

Top Sold-Out Positions

vs Mar 31, 2026
Institution Previously Held Last Value (USD) Open
Showing 100 of 323
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Holder Value (USD) % of 13F Shares Open
Key facts CIK 1476765 CUSIP 38173M102 13F (30d) 272 filings 266 filers Visit website Investor relations