Main Street Capital Corporation MAIN

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Main Street Capital Corporation Common Stock · Company · NYSE

Announcement types: (default: consequential filings)
Results & current reports
Capital markets
Ownership & governance

USD closing-price chart (daily close from yfinance · Last year)

USD 65.43 → 53.64 · -18.0%
67.54058.58549.630 1 2 3 4 5 6 7 8 9 10 11,12 13,14 15 16 17 18 19 20 21 22,23 24,25 26 27 28 29 30 31 32 33 34 Jul 25Oct 25Jan 26Apr 26Jul 26

Numbered dotted lines mark the filtered filings under Announcement Events below.

Price & SEC Filing History 23 Jul 2025 — 24 Jul 2026 (Last year)

Daily NYSE prices are sourced from yfinance. Yellow highlighting marks an intraday rise or a gap up between adjacent trading sessions. SEC acceptance times are converted to US Eastern time: pre-market filings appear below that day’s OHLCV row; filings accepted after the 09:30 ET open appear above it. The SEC does not publish an exact first-public-availability timestamp, so acceptance time is the best available proxy.

No data yet
No data yet
54.7300 54.6650 53.5000 53.6400 455,474
54.5500 55.3000 54.1300 54.1900 859,900
55.4300 55.7800 53.6900 54.5900 576,500
Weekend
Weekend
55.5800 56.3900 55.3000 55.3700 688,300
53.4000 55.6800 53.4000 55.5400 808,200
34 · 8-K Pre-market · 09:15 ET 8-K ↗
53.4700 53.7000 53.0200 53.4100 648,500
52.7000 53.2800 52.5800 53.0900 609,100
53.0000 53.4800 52.4000 52.5100 594,900
Weekend
Weekend
51.8900 53.2000 51.8200 52.8400 578,300
33 · 8-K After market open · 09:38 ET 8-K ↗
51.3000 51.9800 51.0100 51.6700 517,300
51.8300 52.1200 50.9600 51.0500 742,300
52.2600 53.0800 52.2500 52.4100 805,600
52.4800 53.3700 52.2800 52.2900 874,800
Weekend
Weekend
No trading
52.5000 52.8500 51.8200 51.9600 539,700
52.0100 52.9500 51.8800 52.0200 692,700
32 · 8-K After-hours · 16:02 ET 8-K ↗
51.6800 52.2500 51.4500 51.8800 656,000
51.1400 51.6000 50.5600 51.5600 614,300
Weekend
Weekend
50.0600 51.4700 50.0600 51.0100 705,100
49.8600 50.8600 49.8200 50.1900 579,800
50.0200 50.1400 49.4300 49.8000 670,400
50.0000 50.3800 49.6800 50.0200 584,800
50.7200 51.4400 50.3500 50.3500 579,000
Weekend
Weekend
No trading
51.0700 51.4300 50.6800 50.9700 1,496,400
51.5300 51.8100 50.5000 50.6100 666,800
51.4900 51.9200 51.1900 51.4600 719,500
52.4900 53.0100 51.2300 51.2900 930,200
Weekend
Weekend
51.9000 52.4500 51.5000 52.0200 385,400
31 · 8-K After market open · 13:10 ET 8-K ↗
51.7300 52.2500 51.3400 51.7400 557,300
51.2700 52.2000 51.2600 51.5400 704,900
51.5600 52.0000 50.8900 51.3600 604,800
51.5500 51.7600 50.7500 51.3700 570,000
Weekend
Weekend
52.1000 52.3900 51.3700 51.8100 786,800
51.1500 52.3800 51.1500 52.0200 544,000
51.1000 51.4300 50.3600 50.7100 543,600
51.6400 52.0500 51.3200 51.5700 629,500
51.0300 52.0300 51.0000 51.6100 650,400
Weekend
Weekend
51.1100 51.9200 51.0400 51.2100 399,600
51.0000 51.6600 50.9700 51.2900 465,300
51.0500 51.7800 51.0100 51.1200 459,500
49.9400 51.6300 49.6600 51.1800 971,100
No trading
Weekend
Weekend
51.0000 51.4100 48.9500 49.6300 1,888,800
51.2300 51.8700 50.7400 51.0200 482,000
50.5600 51.7100 50.3500 51.2200 593,300
50.9000 51.2300 50.2500 50.5300 722,000
50.4500 51.4500 49.8500 50.9900 779,300
Weekend
Weekend
51.0600 51.5000 50.0500 50.4500 871,500
51.2200 51.6400 50.1200 50.6900 1,328,400
52.4000 52.8600 51.0000 51.0100 1,224,300
52.6200 53.2600 52.3700 52.9200 684,500
53.6800 53.9500 52.1000 52.3000 1,192,600
Weekend
Weekend
30 · 10-Q After market open · 11:59 ET 10-Q ↗
55.7500 56.6000 52.8100 54.0100 1,331,200
29 · 8-K After-hours · 17:06 ET 8-K ↗
56.9700 57.0700 56.4100 56.6000 617,300
57.5500 57.8000 56.6800 57.3300 590,500
28 · 8-K Pre-market · 07:43 ET 8-K ↗ 27 · 8-K After market open · 10:09 ET 8-K ↗
56.1500 57.5000 55.6500 57.3600 472,300
56.0000 56.6400 55.5200 55.7600 477,300
Weekend
Weekend
56.0000 56.6400 55.6700 56.2000 439,500
53.6900 55.9400 53.6400 55.8400 637,000
54.4400 54.5000 53.4000 53.7500 480,200
53.9300 54.7400 53.7000 54.6500 419,600
54.1200 54.4300 53.8900 53.9400 454,500
Weekend
Weekend
54.1500 54.5000 53.9700 54.0600 358,700
54.6000 54.6000 53.6400 54.0200 518,400
54.4400 55.2900 54.2300 54.6500 505,400
55.2000 55.5800 53.7500 54.0500 692,500
54.4200 55.2400 54.3900 54.9600 527,000
Weekend
Weekend
54.0400 54.8400 53.9600 54.8200 895,800
26 · 8-K After market open · 09:33 ET 8-K ↗
57.6900 57.7100 53.0100 53.4600 1,862,000
56.7000 58.3300 56.6300 57.8300 853,500
54.5000 56.5500 54.5000 56.3900 853,600
52.7000 53.9700 52.2500 53.9600 538,100
Weekend
Weekend
53.5800 54.0000 52.8500 53.0800 516,100
25 · 8-K After-hours · 17:06 ET 8-K ↗
54.1300 54.5000 53.3700 53.4400 859,800
24 · 8-K Pre-market · 09:02 ET 8-K ↗
55.0000 55.3800 53.9900 54.3800 663,800
53.9300 54.3800 53.7700 53.9900 453,400
52.7500 54.2000 52.5100 54.2000 543,100
Weekend
Weekend
No trading
51.2700 52.7600 50.7700 52.6300 785,500
53.2600 53.3600 51.7100 51.9100 891,500
23 · 8-K After-hours · 17:16 ET 8-K ↗
52.3000 53.3800 51.8600 52.9600 866,600
22 · 424B2 Next filing day · accepted 30 Mar, 17:59 ET 424B2 ↗
51.9200 52.2900 51.3700 51.6500 727,900
Weekend
Weekend
21 · 424B2 After market open · 11:22 ET 424B2 ↗
52.7500 52.7900 51.2500 51.5300 992,400
54.3200 54.7900 52.8600 52.9200 689,500
55.2600 55.7300 54.4600 54.4700 665,500
54.6900 55.1200 53.9200 54.8500 412,700
55.3300 55.5900 54.0000 55.0300 699,800
20 · DEF 14A Pre-market · 09:16 ET DEF 14A ↗
Weekend
Weekend
55.3900 55.6500 54.3100 55.0100 3,145,500
54.7500 55.9500 54.6300 55.6900 660,600
55.6500 56.3000 55.1300 55.1400 1,048,300
55.5500 56.4400 55.5000 55.7500 1,586,300
55.5100 55.8000 54.7400 55.0700 1,704,100
Weekend
Weekend
54.9300 55.4000 54.2200 54.8900 1,008,900
56.0000 56.4500 54.3000 54.6600 1,704,900
56.7800 57.5700 56.1900 56.6700 634,200
56.8800 57.6000 56.0700 56.7800 433,600
56.6500 57.0000 55.6800 56.8200 875,000
Weekend
Weekend
57.1900 57.9700 57.0500 57.3700 415,000
58.8100 59.4600 57.9000 58.3000 734,800
57.7500 58.9000 56.8700 58.8900 738,100
55.9700 57.6200 55.7800 57.2000 804,500
55.5000 57.9000 54.7400 57.6200 1,413,000
Weekend
Weekend
19 · 10-K After market open · 11:52 ET 10-K ↗
58.5100 58.6800 56.5300 56.8000 1,018,300
18 · 8-K After-hours · 17:08 ET 8-K ↗
58.8000 59.1000 57.2100 58.0900 815,100
57.9900 59.1200 57.5300 58.9600 632,700
17 · 8-K After market open · 11:27 ET 8-K ↗
56.7800 57.9200 56.6900 57.7000 602,200
57.6800 58.4300 56.5700 56.7800 718,400
Weekend
Weekend
57.8800 58.3700 57.0800 57.9400 581,600
59.5900 60.1500 57.3300 57.8800 934,800
59.2600 60.3200 58.9400 60.0200 409,400
59.5000 60.1300 58.3000 59.1800 591,800
No trading
Weekend
Weekend
61.0100 61.0100 58.6300 59.4400 837,900
61.8800 62.5000 60.5800 60.8900 506,100
62.0000 62.1200 61.1300 61.5900 373,300
61.2000 62.2600 60.7600 62.0600 481,200
60.5000 60.9200 60.0000 60.8100 532,000
Weekend
Weekend
60.2300 60.5000 59.7900 60.3100 664,100
61.0600 61.2200 59.4200 59.9000 920,800
62.3900 62.5000 60.8400 61.3800 834,800
63.4500 63.5900 61.7400 62.0900 568,700
63.5000 63.9400 62.3700 63.4200 658,400
Weekend
Weekend
64.2000 64.5100 63.3100 63.8000 371,600
64.6600 64.9800 64.0500 64.5800 338,600
64.6000 65.2300 64.2500 64.2700 402,000
64.0800 64.9200 63.9200 64.6000 410,500
64.0500 64.0500 63.0000 63.7900 390,500
Weekend
Weekend
64.4200 64.5000 63.8200 64.0500 398,100
64.2000 64.4700 63.8300 64.1700 378,500
63.2600 64.0400 63.1300 63.9800 335,900
62.5700 63.4400 62.5000 63.1300 449,300
No trading
Weekend
Weekend
64.0100 64.3800 63.5000 63.9600 474,900
16 · 8-K After market open · 10:34 ET 8-K ↗
62.4000 64.5900 62.2100 64.2000 924,000
60.8100 62.3500 60.5900 62.2700 542,800
60.7500 61.3400 60.4000 60.6900 490,500
60.7700 61.8800 60.6700 60.6900 429,900
Weekend
Weekend
62.2500 62.5200 61.1200 61.1900 591,400
15 · 8-K After market open · 09:44 ET 8-K ↗
60.4900 62.6300 60.4100 62.2000 622,200
62.3100 62.4600 60.3900 60.7500 502,400
62.6800 62.7000 61.6900 62.3100 497,400
61.9700 62.6700 61.9500 62.4400 538,700
Weekend
Weekend
60.7400 61.9800 60.2600 61.7500 500,000
No trading
60.1500 60.6300 60.0400 60.3900 316,700
59.8200 60.5400 59.4800 60.1800 391,700
60.6700 60.9500 59.7500 59.7500 433,900
Weekend
Weekend
59.8700 60.9000 59.8700 60.7700 365,600
No trading
59.1600 60.0600 59.1100 59.8100 206,800
58.9900 59.5400 58.8900 58.9600 457,900
59.9100 60.2000 59.3100 59.3900 854,100
Weekend
Weekend
60.3900 60.8200 60.1500 60.1800 2,329,400
61.1300 61.1400 59.8500 60.3100 531,900
60.7500 61.1700 60.2500 60.5300 549,700
60.8100 61.1500 59.8700 60.5100 570,700
62.1200 62.1800 59.9700 60.7700 770,300
Weekend
Weekend
62.2900 62.7500 61.7300 62.0500 360,200
62.9000 63.1000 62.1200 62.2900 399,500
62.2400 63.2100 61.8800 62.9400 461,700
61.7300 62.7900 61.6800 62.5900 468,600
60.7400 62.4500 60.5000 61.9100 601,700
Weekend
Weekend
60.2000 61.0900 60.1500 60.7300 551,300
59.6000 60.1500 59.1900 59.9800 514,800
58.3000 59.3600 58.1800 59.3500 428,700
58.0000 58.3700 57.5700 58.0600 357,300
57.8200 58.4500 57.7000 57.9200 362,400
Weekend
Weekend
58.0000 58.1800 57.8100 58.0400 182,800
No trading
57.2000 57.9000 57.1900 57.6900 288,500
56.5600 57.2200 56.4000 57.1700 363,100
55.5600 56.6400 55.2500 56.3900 397,100
Weekend
Weekend
55.5800 56.2500 54.8500 55.5600 791,100
56.7200 56.9900 55.1400 55.5100 582,600
56.9100 57.2600 56.1700 56.3800 562,700
57.0200 57.4500 56.4100 57.0300 451,300
58.4800 58.6300 56.9900 57.1200 508,500
Weekend
Weekend
58.5000 58.9000 57.8100 58.4200 475,000
59.0000 59.2600 58.5100 58.9000 348,100
58.9100 59.4500 58.7300 59.1400 340,100
14 · 8-K Pre-market · 07:38 ET 8-K ↗ 13 · 424B3 Pre-market · 07:34 ET 424B3 ↗
58.7400 59.4500 58.5000 59.2200 309,100
58.8700 59.5800 58.4000 58.7000 778,300
Weekend
Weekend
12 · 10-Q After market open · 11:39 ET 10-Q ↗
57.4700 58.8800 56.3100 58.7000 531,600
11 · 8-K Next filing day · accepted 06 Nov, 17:48 ET 8-K ↗
57.6500 58.2500 57.0900 57.1500 652,700
57.1800 57.3200 56.1200 57.2100 525,200
10 · 8-K After market open · 09:50 ET 8-K ↗
57.5000 57.5000 56.7000 57.1700 504,400
57.0000 57.4300 56.5300 57.1600 474,600
Weekend
Weekend
56.1500 57.3800 55.8600 56.9200 452,100
57.5300 58.0000 56.0400 56.3500 539,400
58.3500 58.7800 57.3200 57.7200 405,000
58.3100 58.9500 57.9900 58.5000 375,100
57.4500 58.2300 57.2600 58.2300 483,900
Weekend
Weekend
58.0900 58.4800 57.4500 57.4500 379,300
57.8800 58.1600 57.2900 57.6200 383,100
57.8700 58.0000 57.0000 57.5900 634,900
57.9600 58.3000 57.3000 57.9600 500,500
58.2700 58.5600 57.6800 57.9500 510,700
Weekend
Weekend
57.1200 58.5000 56.7700 58.1400 696,100
58.3000 58.9600 57.0500 57.2100 516,100
58.4900 59.0000 57.7600 58.1300 597,300
9 · 8-K After market open · 09:39 ET 8-K ↗
56.0000 58.6200 55.7400 58.3800 808,500
56.0600 57.0000 55.6800 56.5700 918,700
Weekend
Weekend
57.2500 57.4000 55.0600 55.1000 2,055,500
60.1000 60.4300 57.0500 57.0800 1,696,600
8 · 8-K Pre-market · 09:27 ET 8-K ↗
61.5500 61.9200 60.2800 60.5500 695,800
62.8000 62.8400 61.0100 61.7700 708,500
63.0000 63.3000 61.8800 62.4900 557,800
Weekend
Weekend
64.2000 64.2100 62.9100 62.9600 369,000
62.5800 64.1300 62.4600 63.9700 413,600
63.5000 63.5600 62.3600 62.8400 477,600
63.5600 64.0800 62.8600 63.5900 359,800
64.0000 64.3900 63.0700 63.3500 387,000
Weekend
Weekend
7 · 8-K After-hours · 16:05 ET 8-K ↗
63.8500 64.4700 63.6800 63.7500 382,500
62.5200 63.9300 62.2000 63.7200 508,600
64.3400 64.6000 62.8300 62.8700 545,400
64.2000 64.9400 64.0100 64.2800 401,900
65.3500 65.8500 64.0200 64.2800 757,600
Weekend
Weekend
65.8400 66.0500 65.0500 65.7800 1,944,800
66.0000 66.8500 65.6600 66.1300 853,800
65.1300 66.5400 65.0000 65.7900 531,300
65.3800 65.8600 64.8000 65.0800 611,000
67.0000 67.2600 65.0700 65.1700 743,400
Weekend
Weekend
67.0000 67.3400 66.6900 66.9800 459,100
66.7200 67.2600 66.4800 67.1700 423,800
66.0500 66.7100 65.8300 66.7100 598,800
65.5600 66.2600 65.5600 65.9500 442,200
66.2900 66.3700 65.3500 65.9700 430,100
Weekend
Weekend
66.7900 66.8800 66.1100 66.5200 540,000
66.0000 66.5900 65.7700 66.5900 345,600
65.8100 66.3000 65.3200 65.6400 359,800
65.7500 66.5300 65.3700 65.7900 594,000
No trading
Weekend
Weekend
66.1300 66.5000 65.9600 66.2900 486,800
64.7900 65.9100 64.6400 65.8200 503,700
64.6000 65.2300 64.6000 64.7300 388,300
63.7500 64.6700 63.6200 64.6300 359,900
65.2600 65.3700 64.0000 64.0000 656,100
Weekend
Weekend
65.6500 66.3600 65.0700 65.0900 580,900
65.5700 66.0300 65.2000 65.6500 446,700
65.1100 65.6200 64.7300 65.3900 403,400
66.1300 66.2000 65.0400 65.2300 685,900
66.2500 66.5900 65.6100 65.6300 540,000
Weekend
Weekend
6 · 8-K After-hours · 17:05 ET 8-K ↗
67.1500 67.4800 66.1000 66.1000 390,100
5 · 424B2 After-hours · 16:43 ET 424B2 ↗
67.5100 67.7700 67.0600 67.1500 388,100
67.0000 67.6800 66.7000 67.5400 557,000
4 · 424B2 Pre-market · 09:27 ET 424B2 ↗
66.1000 66.6800 65.9800 66.6600 374,500
65.6200 67.0300 65.3700 65.9800 662,900
Weekend
Weekend
3 · 10-Q After market open · 11:04 ET 10-Q ↗
64.1000 65.8500 63.3200 65.6300 762,300
2 · 8-K After-hours · 17:02 ET 8-K ↗
64.3400 64.5000 63.1600 63.5300 733,700
63.7600 64.4800 63.4300 64.1500 406,600
1 · 8-K After market open · 15:16 ET 8-K ↗
64.3700 64.3700 62.9200 63.6600 658,200
64.2100 64.7500 63.7000 64.1900 409,800
Weekend
Weekend
64.1600 64.2700 63.0100 63.9900 574,800
64.7000 65.5200 64.3000 64.7000 320,800
64.5600 65.0000 64.0200 64.5400 342,400
65.1800 65.2900 63.8000 64.5000 488,900
65.8300 66.0000 64.7900 65.1500 470,200
Weekend
Weekend
65.8300 65.9600 65.1500 65.8300 366,800
65.5000 66.3900 65.4400 65.5700 547,700
64.4400 65.6700 64.4400 65.4300 665,500

Announcement Events

Each title opens the filing on the SEC website. Registered users can summarise the filing and up to seven relevant exhibits linked within the same SEC submission.

34 8-K 8-K (opens SEC filing in a new tab) Pre-market · 09:15 ET Summarise
33 8-K 8-K (opens SEC filing in a new tab) After market open · 09:38 ET Summarise
32 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:02 ET Summarise
31 8-K 8-K (opens SEC filing in a new tab) After market open · 13:10 ET Summarise
30 10-Q 10-Q (opens SEC filing in a new tab) After market open · 11:59 ET Summarise
29 8-K 8-K (opens SEC filing in a new tab) After-hours · 17:06 ET Summarise
28 8-K 8-K (opens SEC filing in a new tab) Pre-market · 07:43 ET Summarise
27 8-K 8-K (opens SEC filing in a new tab) After market open · 10:09 ET Summarise
26 8-K 8-K (opens SEC filing in a new tab) After market open · 09:33 ET Summarise
25 8-K 8-K (opens SEC filing in a new tab) After-hours · 17:06 ET Summarise
24 8-K 8-K (opens SEC filing in a new tab) Pre-market · 09:02 ET Summarise
23 8-K 8-K (opens SEC filing in a new tab) After-hours · 17:16 ET Summarise
22 424B2 424B2 (opens SEC filing in a new tab) Next filing day · accepted 30 Mar, 17:59 ET Summarise
21 424B2 424B2 (opens SEC filing in a new tab) After market open · 11:22 ET Summarise
20 DEF 14A DEF 14A (opens SEC filing in a new tab) Pre-market · 09:16 ET Summarise
19 10-K 10-K (opens SEC filing in a new tab) After market open · 11:52 ET Summarise
18 8-K 8-K (opens SEC filing in a new tab) After-hours · 17:08 ET Summarise
17 8-K 8-K (opens SEC filing in a new tab) After market open · 11:27 ET Summarise
16 8-K 8-K (opens SEC filing in a new tab) After market open · 10:34 ET Summarise
15 8-K 8-K (opens SEC filing in a new tab) After market open · 09:44 ET Summarise
14 8-K 8-K (opens SEC filing in a new tab) Pre-market · 07:38 ET Summarise
13 424B3 424B3 (opens SEC filing in a new tab) Pre-market · 07:34 ET Summarise
12 10-Q 10-Q (opens SEC filing in a new tab) After market open · 11:39 ET Summarise
11 8-K 8-K (opens SEC filing in a new tab) Next filing day · accepted 06 Nov, 17:48 ET Summarise
10 8-K 8-K (opens SEC filing in a new tab) After market open · 09:50 ET Summarise
9 8-K 8-K (opens SEC filing in a new tab) After market open · 09:39 ET Summarise
8 8-K 8-K (opens SEC filing in a new tab) Pre-market · 09:27 ET Summarise
7 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:05 ET Summarise
6 8-K 8-K (opens SEC filing in a new tab) After-hours · 17:05 ET Summarise
5 424B2 424B2 (opens SEC filing in a new tab) After-hours · 16:43 ET Summarise
4 424B2 424B2 (opens SEC filing in a new tab) Pre-market · 09:27 ET Summarise
3 10-Q 10-Q (opens SEC filing in a new tab) After market open · 11:04 ET Summarise
2 8-K 8-K (opens SEC filing in a new tab) After-hours · 17:02 ET Summarise
1 8-K 8-K (opens SEC filing in a new tab) After market open · 15:16 ET Summarise