| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| Fourthstone LLC | 10% | +48% | $15,632,245 | +$5,250,009 | 767,792 | +51% | Fourthstone LLC | 31 Dec 2025 |
| ALLIANCEBERNSTEIN L.P. | 8.5% | $12,255,775 | 648,797 | AllianceBernstein L.P. | 30 Sep 2024 | |||
| WELLINGTON MANAGEMENT GROUP LLP | 4.7% | $7,317,608 | 359,411 | Wellington Management Group LLP | 31 Dec 2025 |
As of 31 Dec 2025, 74 institutional investors reported holding 4,749,317 shares of MainStreet Bancshares, Inc. - COMMON STOCK (MNSB). This represents 62% of the company’s total 7,708,755 outstanding shares.
The largest institutional shareholders of MainStreet Bancshares, Inc. - COMMON STOCK (MNSB) together control 59% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| Fourthstone LLC | 10% | 767,792 | +51% | 2.9% | $15,632,245 |
| ALLIANCEBERNSTEIN L.P. | 8.9% | 684,945 | +1.6% | 0% | $13,945,480 |
| BANC FUNDS CO LLC | 5.5% | 421,981 | -26% | 1.7% | $8,591,533 |
| VANGUARD GROUP INC | 4.9% | 379,278 | -0.27% | 0% | $7,722,101 |
| WELLINGTON MANAGEMENT GROUP LLP | 4.7% | 359,411 | -13% | 0% | $7,317,608 |
| BlackRock, Inc. | 4.5% | 350,338 | +5.1% | 0% | $7,132,882 |
| Cresset Asset Management, LLC | 4.3% | 333,136 | -0.77% | 0.03% | $6,782,639 |
| FIRST MANHATTAN CO. LLC. | 2.4% | 188,108 | -10% | 0.01% | $3,829,879 |
| GEODE CAPITAL MANAGEMENT, LLC | 1.9% | 149,969 | -1.8% | 0% | $3,053,709 |
| DIMENSIONAL FUND ADVISORS LP | 1.8% | 138,351 | +16% | 0% | $2,816,878 |
| UBS Group AG | 1.5% | 113,676 | -16% | 0% | $2,314,443 |
| ACADIAN ASSET MANAGEMENT LLC | 1.3% | 97,034 | +13% | 0% | $1,971,000 |
| STATE STREET CORP | 0.95% | 73,562 | +0.8% | 0% | $1,497,722 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 0.79% | 60,742 | +18% | 0.03% | $1,236,707 |
| RENAISSANCE TECHNOLOGIES LLC | 0.64% | 49,000 | -0.79% | 0% | $997,640 |
| NORTHERN TRUST CORP | 0.63% | 48,488 | -9.5% | 0% | $987,216 |
| MENDON CAPITAL ADVISORS CORP | 0.61% | 47,312 | +23% | 0.38% | $963,272 |
| MARSHALL WACE, LLP | 0.57% | 44,287 | +256% | 0% | $901,683 |
| CITADEL ADVISORS LLC | 0.51% | 39,288 | 0% | $799,904 | |
| Squarepoint Ops LLC | 0.45% | 34,424 | 0% | $700,873 | |
| Empowered Funds, LLC | 0.41% | 31,362 | +9.6% | 0.01% | $638,530 |
| Connor, Clark & Lunn Investment Management Ltd. | 0.35% | 26,971 | +51% | 0% | $549,130 |
| MORGAN STANLEY | 0.34% | 26,465 | +4.2% | 0% | $538,828 |
| BARCLAYS PLC | 0.34% | 26,048 | +17% | 0% | $530,338 |
| ELCO Management Co., LLC | 0.29% | 22,312 | +95% | 0.29% | $454,272 |
| Period | Reported Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2025 Q4 | 4,749,317 | $96,690,403 | +$2,857,962 | $20.36 | 74 |
| 2025 Q3 | 4,589,305 | $95,527,235 | +$6,799,595 | $20.83 | 70 |
| 2025 Q2 | 4,266,844 | $80,648,091 | +$11,262,860 | $18.90 | 61 |
| 2025 Q1 | 3,702,538 | $61,907,545 | -$1,509,419 | $16.72 | 51 |
| 2024 Q4 | 3,789,817 | $68,594,548 | +$324,810 | $18.10 | 53 |
| 2024 Q3 | 3,770,610 | $69,566,920 | -$3,460,316 | $18.45 | 53 |
| 2024 Q2 | 3,935,503 | $69,774,685 | -$5,599,884 | $17.73 | 65 |
| 2024 Q1 | 4,265,818 | $77,464,108 | +$1,680,327 | $18.16 | 61 |
| 2023 Q4 | 4,191,299 | $103,968,287 | +$7,613,844 | $24.81 | 63 |
| 2023 Q3 | 3,850,135 | $79,080,643 | +$2,043,343 | $20.54 | 61 |
| 2023 Q2 | 3,773,569 | $85,505,904 | +$8,661,430 | $22.66 | 59 |
| 2023 Q1 | 3,348,821 | $78,657,624 | -$1,161,875 | $23.49 | 53 |
| 2022 Q4 | 3,365,456 | $92,509,925 | +$3,713,035 | $27.49 | 52 |
| 2022 Q3 | 3,268,472 | $74,553,000 | -$1,717,446 | $22.81 | 43 |
| 2022 Q2 | 3,343,443 | $76,134,000 | -$709,864 | $22.77 | 44 |
| 2022 Q1 | 3,407,056 | $82,826,000 | -$861,529 | $24.31 | 43 |
| 2021 Q4 | 3,442,262 | $84,642,402 | +$7,120,673 | $24.59 | 45 |
| 2021 Q3 | 3,130,073 | $75,087,367 | -$2,560,816 | $23.99 | 39 |
| 2021 Q2 | 3,246,224 | $73,315,274 | -$7,121,400 | $22.58 | 44 |
| 2021 Q1 | 3,572,641 | $74,174,695 | +$528,042 | $20.76 | 49 |
| 2020 Q4 | 3,546,723 | $59,974,987 | -$7,707,353 | $16.91 | 50 |
| 2020 Q3 | 4,016,842 | $49,165,743 | +$574,997 | $12.24 | 51 |
| 2020 Q2 | 3,969,416 | $52,389,462 | -$1,123,471 | $13.20 | 50 |
| 2020 Q1 | 4,019,993 | $67,369,637 | -$2,775,410 | $16.76 | 46 |
| 2019 Q4 | 4,192,976 | $96,438,985 | +$4,009,637 | $23.00 | 48 |
| 2019 Q3 | 3,919,965 | $82,508,882 | +$3,072,757 | $21.05 | 45 |
| 2019 Q2 | 3,688,754 | $83,921,794 | +$57,022,502 | $22.79 | 45 |
| 2019 Q1 | 1,186,788 | $25,634,000 | -$284,590 | $21.60 | 4 |
| 2018 Q4 | 1,199,963 | $20,524,000 | +$197,478 | $17.06 | 4 |
| 2018 Q3 | 1,183,783 | $24,787,000 | +$12,034,374 | $20.95 | 5 |
| 2018 Q2 | 609,286 | $12,606,000 | +$600,210 | $20.75 | 3 |
| 2018 Q1 | 580,276 | $12,766,000 | +$1,520,000 | $22.00 | 3 |
| 2017 Q4 | 511,597 | $8,963,139 | +$1,702,363 | $17.51 | 2 |
| 2017 Q3 | 415,428 | $6,771,000 | +$213,700 | $16.29 | 2 |
| 2017 Q2 | 402,300 | $6,457,000 | +$458,619 | $16.05 | 1 |
| 2017 Q1 | 373,726 | $6,185,000 | $16.55 | 1 | |
| 2016 Q4 | 373,726 | $5,307,000 | -$1,779,000 | $14.20 | 1 |
| 2016 Q3 | 514,903 | $6,488,000 | +$1,652,999 | $12.60 | 2 |
| 2016 Q2 | 383,726 | $4,566,000 | +$4,566,000 | $11.90 | 1 |