Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in BOC held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | MAGNOLIA GROUP, LLC | 5.6M | $65.3M | 0.0% | 18.383% | 12.15% |
| 2 | MASSACHUSETTS INSTITUTE OF TECHNOLOGY | 2.4M | $28.6M | 0.0% | 8.040% | 4.95% |
| 3 | DIMENSIONAL FUND ADVISORS LP | 1.6M | $18.3M | -0.1% | 5.142% | 0.00% |
| 4 | BlackRock, Inc. | 1.6M | $18.1M | -1.7% | 5.104% | 0.00% |
| 5 | Elgethun Capital Management | 1.5M | $17.0M | +0.3% | 4.795% | 2.82% |
| 6 | VANGUARD CAPITAL MANAGEMENT LLC | 1.1M | $12.3M | — | 3.475% | 0.00% |
| 7 | FENIMORE ASSET MANAGEMENT INC | 930K | $10.9M | +0.4% | 3.059% | 0.24% |
| 8 | PRIVATE MANAGEMENT GROUP INC | 918K | $10.7M | +28.8% | 3.018% | 0.31% |
| 9 | GEODE CAPITAL MANAGEMENT, LLC | 543K | $6.3M | +4.5% | 1.787% | 0.00% |
| 10 | STATE STREET CORP | 510K | $6.0M | +8.8% | 1.678% | 0.00% |
| 11 | STEVENS CAPITAL PARTNERS | 457K | $5.3M | +4.8% | 1.502% | 1.28% |
| 12 | Ironvine Capital Partners, LLC | 425K | $5.0M | -5.8% | 1.399% | 0.55% |
| 13 | FIRST MANHATTAN CO | 412K | $4.8M | +23.5% | 1.357% | 0.01% |
| 14 | Nitor Capital Management LLC | 364K | $4.3M | -1.6% | 1.198% | 3.28% |
| 15 | VANGUARD PORTFOLIO MANAGEMENT LLC | 220K | $2.6M | — | 0.722% | 0.00% |
| 16 | NORTHERN TRUST CORP | 171K | $2.0M | +3.2% | 0.562% | 0.00% |
| 17 | VANGUARD FIDUCIARY TRUST CO | 144K | $1.7M | — | 0.473% | 0.00% |
| 18 | GOLDMAN SACHS GROUP INC | 143K | $1.7M | +62.0% | 0.471% | 0.00% |
| 19 | TWO SIGMA INVESTMENTS, LP | 143K | $1.7M | +29.6% | 0.471% | 0.00% |
| 20 | GEORGE KAISER FAMILY FOUNDATION | 141K | $1.6M | 0.0% | 0.464% | 0.19% |
| 21 | Meixler Investment Management, Ltd. | 102K | $1.3M | -3.5% | 0.335% | 0.67% |
| 22 | UBS Group AG | 70K | $822K | -13.0% | 0.231% | 0.00% |
| 23 | AMERICAN CENTURY COMPANIES INC | 60K | $695K | -0.9% | 0.196% | 0.00% |
| 24 | D. E. Shaw & Co., Inc. | 58K | $677K | +96.5% | 0.191% | 0.00% |
| 25 | Trexquant Investment LP | 58K | $674K | -19.8% | 0.190% | 0.01% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). “% of Fund” shows how much of that investor’s total 13F portfolio is invested in BOC — a direct measure of their conviction.
Filings activity in BOC during Q1 2026, grouped by how each filer changed its position.
8 quarters of 13F filings · Δ columns show change vs prior quarter
| Quarter | Inst. Holders | Δ Holders | Ownership % | Δ Ownership | Total 13F Value | Δ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 119 | 0.8% | 57.70% | 3.43 pp | $239M | 5.6% |
| Q4 2025 | 120 | 0.8% | 61.13% | 4.96 pp | $253M | 7.5% |
| Q3 2025 | 121 | 6.2% | 66.09% | 3.59 pp | $274M | 5.1% |
| Q2 2025 | 129 | 2.3% | 69.68% | 2.53 pp | $288M | 3.5% |
| Q1 2025 | 132 | +0.8% | 72.21% | +4.60 pp | $299M | +6.8% |
| Q4 2024 | 131 | +4.8% | 67.61% | 2.75 pp | $280M | 3.9% |
| Q3 2024 | 125 | +3.3% | 70.36% | +6.15 pp | $291M | +9.6% |
| Q2 2024 | 121 | — | 64.21% | — | $266M | — |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Δ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying BOC stock.
Based on Q1 2026 13F filings, institutional ownership of Boston Omaha Corporation stands at 57.7%, held across 119 reporting institutions.
MAGNOLIA GROUP, LLC is the largest reported institutional holder of BOC, with approximately 5,589,253 shares worth $0.07B as of Q1 2026.
Yes — 1 widely-followed marquee investor appear among the top 25 institutional holders of BOC, including TWO SIGMA INVESTMENTS, LP.
Our composite Smart Money Score for BOC is 35 out of 100 (Bearish). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
21 institutions opened new positions in BOC during Q1 2026, while 22 fully exited. 20 added to existing positions and 76 trimmed.
BOC institutional ownership fell by 3.43 percentage points quarter-over-quarter, with a net change of -1 holders.
The top 10 institutions account for 81.0% of all reported 13F value in BOC, and the top 25 account for 95.6%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
Boston Omaha Corporation (BOC) Institutional Ownership