HOUSTON, TX
MAIN STREET CAPITAL CORPMAIN— Latest position per institution from SEC 13F filings
15
Institutional holders
14.29M
Total shares held
477.74M
Estimated value
714.61K
Avg. position size
PRICE T ROWE ASSOCIATES INC /MD/
CIK 80255
Shares
2.71M
Value
143.46K
Filed
Mar 31, 2026
VAN ECK ASSOCIATES CORP
CIK 869178
Shares
2.11M
Value
111.69K
Filed
Mar 31, 2026
UBS GROUP AG
CIK 1610520
Shares
1.34M
Value
70.90M
Filed
Mar 31, 2026
MORGAN STANLEY
CIK 895421
Shares
854.59K
Value
45.26M
Filed
Mar 31, 2026
LEGAL & GENERAL GROUP PLC
CIK 764068
Shares
784.02K
Value
41.51M
Filed
Mar 31, 2026
SUSQUEHANNA INTERNATIONAL GROUP, LLP
CIK 1446194
Shares
608.43K
Value
32.22M
Filed
Mar 31, 2026
D. E. SHAW & CO., INC.
CIK 1009207
Shares
543.33K
Value
28.77M
Filed
Mar 31, 2026
TWO SIGMA INVESTMENTS, LP
CIK 1179392
Shares
524.04K
Value
27.75M
Filed
Mar 31, 2026
QUBE RESEARCH & TECHNOLOGIES LTD
CIK 1729829
Shares
485.80K
Value
25.73M
Filed
Mar 31, 2026
MUZINICH & CO., INC.
CIK 1618824
Shares
484.82K
Value
25.68M
Filed
Mar 31, 2026
ADELL HARRIMAN & CARPENTER INC
CIK 1134152
Shares
484.58K
Value
25.66M
Filed
Mar 31, 2026
T. ROWE PRICE INVESTMENT MANAGEMENT, INC.
CIK 1897612
Shares
442.13K
Value
19.11K
Filed
Dec 31, 2023
INVESCO LTD.
CIK 914208
Shares
432.48K
Value
22.90M
Filed
Mar 31, 2026
BLACKROCK, INC.
CIK 2012383
Shares
424.24K
Value
22.47M
Filed
Mar 31, 2026
SUMITOMO MITSUI TRUST GROUP, INC.
CIK 1475365
Shares
370.51K
Value
19.62M
Filed
Mar 31, 2026
MILLENNIUM MANAGEMENT LLC
CIK 1273087
Shares
359.84K
Value
19.06M
Filed
Mar 31, 2026
BLACKROCK FINANCE, INC.
CIK 1364742
Shares
354.69K
Value
17.91M
Filed
Jun 30, 2024
LPL FINANCIAL LLC
CIK 1403438
Shares
347.93K
Value
18.43M
Filed
Mar 31, 2026
FRANKLIN RESOURCES INC
CIK 38777
Shares
320.87K
Value
16.99M
Filed
Mar 31, 2026
GOLDMAN SACHS GROUP INC
CIK 886982
Shares
313.39K
Value
16.60M
Filed
Mar 31, 2026
| # | Institution | CIK | Shares | Est. Value | Period |
|---|---|---|---|---|---|
| 1 | PRICE T ROWE ASSOCIATES INC /MD/ | 80255 | 2.71M | 143.46K | Mar 31, 2026 |
| 2 | VAN ECK ASSOCIATES CORP | 869178 | 2.11M | 111.69K | Mar 31, 2026 |
| 3 | UBS GROUP AG | 1610520 | 1.34M | 70.90M | Mar 31, 2026 |
| 4 | MORGAN STANLEY | 895421 | 854.59K | 45.26M | Mar 31, 2026 |
| 5 | LEGAL & GENERAL GROUP PLC | 764068 | 784.02K | 41.51M | Mar 31, 2026 |
| 6 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 1446194 | 608.43K | 32.22M | Mar 31, 2026 |
| 7 | D. E. SHAW & CO., INC. | 1009207 | 543.33K | 28.77M | Mar 31, 2026 |
| 8 | TWO SIGMA INVESTMENTS, LP | 1179392 | 524.04K | 27.75M | Mar 31, 2026 |
| 9 | QUBE RESEARCH & TECHNOLOGIES LTD | 1729829 | 485.80K | 25.73M | Mar 31, 2026 |
| 10 | MUZINICH & CO., INC. | 1618824 | 484.82K | 25.68M | Mar 31, 2026 |
| 11 | ADELL HARRIMAN & CARPENTER INC | 1134152 | 484.58K | 25.66M | Mar 31, 2026 |
| 12 | T. ROWE PRICE INVESTMENT MANAGEMENT, INC. | 1897612 | 442.13K | 19.11K | Dec 31, 2023 |
| 13 | INVESCO LTD. | 914208 | 432.48K | 22.90M | Mar 31, 2026 |
| 14 | BLACKROCK, INC. | 2012383 | 424.24K | 22.47M | Mar 31, 2026 |
| 15 | SUMITOMO MITSUI TRUST GROUP, INC. | 1475365 | 370.51K | 19.62M | Mar 31, 2026 |
| 16 | MILLENNIUM MANAGEMENT LLC | 1273087 | 359.84K | 19.06M | Mar 31, 2026 |
| 17 | BLACKROCK FINANCE, INC. | 1364742 | 354.69K | 17.91M | Jun 30, 2024 |
| 18 | LPL FINANCIAL LLC | 1403438 | 347.93K | 18.43M | Mar 31, 2026 |
| 19 | FRANKLIN RESOURCES INC | 38777 | 320.87K | 16.99M | Mar 31, 2026 |
| 20 | GOLDMAN SACHS GROUP INC | 886982 | 313.39K | 16.60M | Mar 31, 2026 |
Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.