Ranked by reported Q2 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 | $76.2M | 0.0% | 18.498% | 16.01% |
| 2 | MASSACHUSETTS INSTITUTE OF TECHNOLOGY | 2.4M | $33.3M | 0.0% | 8.090% | 4.55% |
| 3 | BlackRock, Inc. | 1.8M | $24.4M | +15.3% | 5.924% | 0.00% |
| 4 | Elgethun Capital Management | 1.5M | $19.9M | +0.3% | 4.838% | 2.78% |
| 5 | DIMENSIONAL FUND ADVISORS LP | 1.4M | $19.5M | -8.7% | 4.725% | 0.00% |
| 6 | VANGUARD CAPITAL MANAGEMENT LLC | 968K | $13.2M | -8.3% | 3.205% | 0.00% |
| 7 | PRIVATE MANAGEMENT GROUP INC | 935K | $12.8M | +1.9% | 3.094% | 0.34% |
| 8 | GEODE CAPITAL MANAGEMENT, LLC | 563K | $7.7M | +3.6% | 1.863% | 0.00% |
| 9 | STATE STREET CORP | 535K | $7.3M | +4.9% | 1.771% | 0.00% |
| 10 | Nitor Capital Management, LLC | 416K | $5.7M | +14.2% | 1.377% | 3.83% |
| 11 | FIRST MANHATTAN CO. LLC. | 394K | $5.4M | -4.4% | 1.305% | 0.01% |
| 12 | STEVENS CAPITAL PARTNERS | 364K | $5.0M | -20.4% | 1.203% | 0.94% |
| 13 | VANGUARD PORTFOLIO MANAGEMENT LLC | 231K | $3.2M | +5.3% | 0.766% | 0.00% |
| 14 | GOLDMAN SACHS GROUP INC | 197K | $2.7M | +37.3% | 0.651% | 0.00% |
| 15 | TWO SIGMA INVESTMENTS, LP | 187K | $2.5M | +30.5% | 0.619% | 0.00% |
| 16 | NORTHERN TRUST CORP | 180K | $2.5M | +5.3% | 0.595% | 0.00% |
| 17 | CITADEL ADVISORS LLC | 154K | $2.1M | +4.7% | 0.511% | 0.00% |
| 18 | VANGUARD FIDUCIARY TRUST CO | 145K | $2.0M | +1.2% | 0.481% | 0.00% |
| 19 | GEORGE KAISER FAMILY FOUNDATION | 141K | $1.9M | 0.0% | 0.466% | 0.18% |
| 20 | Meixler Investment Management, Ltd. | 96K | $1.3M | -5.8% | 0.317% | 0.72% |
| 21 | Ironvine Capital Partners, LLC | 90K | $1.2M | -78.9% | 0.297% | 0.11% |
| 22 | Nuveen, LLC | 82K | $1.1M | +109.6% | 0.271% | 0.00% |
| 23 | JANE STREET GROUP, LLC | 79K | $1.1M | +425.6% | 0.261% | 0.00% |
| 24 | Qube Research & Technologies Ltd | 77K | $1.1M | — | 0.255% | 0.00% |
| 25 | D. E. Shaw & Co., Inc. | 66K | $894K | +13.1% | 0.217% | 0.00% |
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 Q2 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 |
|---|---|---|---|---|---|---|
| Q2 2026 | 136 | +11% | 66.31% | 1.92 pp | $273M | +13% |
| Q1 2026 | 122 | +0.8% | 68.23% | +0.98 pp | $241M | 5.9% |
| Q4 2025 | 121 | +0.0% | 67.25% | 0.70 pp | $256M | 6.5% |
| Q3 2025 | 121 | 6.2% | 67.95% | +1.07 pp | $274M | 5.1% |
| Q2 2025 | 129 | 2.3% | 66.88% | +0.67 pp | $288M | 3.5% |
| Q1 2025 | 132 | +0.8% | 66.21% | +0.96 pp | $299M | +6.8% |
| Q4 2024 | 131 | +4.8% | 65.25% | +0.97 pp | $280M | 3.9% |
| Q3 2024 | 125 | — | 64.28% | — | $291M | — |
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 Q2 2026 13F filings, institutional ownership of Boston Omaha Corporation stands at 66.3%, held across 136 reporting institutions.
MAGNOLIA GROUP, LLC is the largest reported institutional holder of BOC, with approximately 5,589,253 shares worth $0.08B as of Q2 2026.
Yes — 3 widely-followed marquee investors appear among the top 25 institutional holders of BOC, including TWO SIGMA INVESTMENTS, LP, CITADEL ADVISORS LLC, JANE STREET GROUP, LLC.
Our composite Smart Money Score for BOC is 57 out of 100 (Neutral). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
22 institutions opened new positions in BOC during Q2 2026, while 9 fully exited. 101 added to existing positions and 11 trimmed.
BOC institutional ownership fell by 1.92 percentage points quarter-over-quarter, with a net change of +14 holders.
The top 10 institutions account for 80.6% of all reported 13F value in BOC, and the top 25 account for 93.1%.
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