Who owns Boston Omaha (BOMN)
Which tracked institutional funds hold BOMN, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See BOMN company fundamentals →
Ownership as of the 2026-Q2 13F filings (latest filed 2026-09-22). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
The tracked-fund tape on BOMN is one-sided between 2026-Q1 and 2026-Q2: 29 added or opened and 5 trimmed or exited — on balance accumulating.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
BOMN’s largest tracked holder by dollar value, MAGNOLIA GROUP, LLC, sizes it at 16.0% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 16.0pp conviction gap — its largest holder concentrates the name more heavily than the typical one.
Book-share is each fund’s reported value in BOMN divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2026-Q1 and 2026-Q2, across 134 tracked filers holding BOMN, 79 increased or opened the position and 37 reduced or closed it; over the same quarter, there were no open-market insider Form 4s.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in BOMN between the 2026-Q1 and 2026-Q2 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 1
- Qube Research & Technologies Ltd$1M
Full exits 2
- Fenimore Asset Management Inc$11M
- ARROWSTREET CAPITAL, LIMITED PARTNERSHIP$537K
Largest adds
- MAGNOLIA GROUP, LLC$11M
- BlackRock, Inc.$6M
- MASSACHUSETTS INSTITUTE OF TECHNOLOGY$5M
- Elgethun Capital Management$3M
- PRIVATE MANAGEMENT GROUP INC$2M
- Nitor Capital Management LLC$1M
Largest trims
- Ironvine Capital Partners, LLC$4M
- STEVENS CAPITAL PARTNERS$374K
- UBS Group AG$254K
Institutional holders
One row per tracked fund, most shares held first (every row is from one quarter; reported value breaks ties). “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding.
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| MAGNOLIA GROUP, LLC | 5,589,253 | $76M | 28.0% | 2026-Q2 |
| MASSACHUSETTS INSTITUTE OF TECHNOLOGY | 2,444,473 | $33M | 12.3% | 2026-Q2 |
| BlackRock, Inc. added | 1,789,928 | $24M | 9.0% | 2026-Q2 |
| Elgethun Capital Management added | 1,461,947 | $20M | 7.3% | 2026-Q2 |
| DIMENSIONAL FUND ADVISORS LP trimmed | 1,427,553 | $19M | 7.2% | 2026-Q2 |
| VANGUARD CAPITAL MANAGEMENT LLC trimmed | 968,456 | $13M | 4.9% | 2026-Q2 |
| PRIVATE MANAGEMENT GROUP INC added | 934,876 | $13M | 4.7% | 2026-Q2 |
| GEODE CAPITAL MANAGEMENT, LLC added | 562,893 | $8M | 2.8% | 2026-Q2 |
| STATE STREET CORP added | 535,031 | $7M | 2.7% | 2026-Q2 |
| Nitor Capital Management LLC added | 415,950 | $6M | 2.1% | 2026-Q2 |
| FIRST MANHATTAN CO. LLC. trimmed | 394,243 | $5M | 2.0% | 2026-Q2 |
| STEVENS CAPITAL PARTNERS trimmed | 363,526 | $5M | 1.8% | 2026-Q2 |
| VANGUARD PORTFOLIO MANAGEMENT LLC added | 231,329 | $3M | 1.2% | 2026-Q2 |
| GOLDMAN SACHS GROUP INC added | 196,611 | $3M | 1.0% | 2026-Q2 |
| TWO SIGMA INVESTMENTS, LP added | 186,889 | $3M | 0.9% | 2026-Q2 |
| NORTHERN TRUST CORP added | 179,873 | $2M | 0.9% | 2026-Q2 |
| VANGUARD FIDUCIARY TRUST CO added | 145,472 | $2M | 0.7% | 2026-Q2 |
| George Kaiser Family Foundation | 140,932 | $2M | 0.7% | 2026-Q2 |
| CITADEL ADVISORS LLC added | 131,455 | $2M | 0.7% | 2026-Q2 |
| Meixler Investment Management, Ltd. trimmed | 95,895 | $1M | 0.5% | 2026-Q2 |
| Ironvine Capital Partners, LLC trimmed | 89,758 | $1M | 0.5% | 2026-Q2 |
| Nuveen, LLC added | 81,784 | $1M | 0.4% | 2026-Q2 |
| Qube Research & Technologies Ltd new | 76,985 | $1M | 0.4% | 2026-Q2 |
| JANE STREET GROUP, LLC added | 66,193 | $903K | 0.3% | 2026-Q2 |
| D. E. Shaw & Co., Inc. added | 65,517 | $894K | 0.3% | 2026-Q2 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 62,181 | $848K | 0.3% | 2026-Q2 |
| Quantinno Capital Management LP added | 59,911 | $817K | 0.3% | 2026-Q2 |
| Trexquant Investment LP added | 59,789 | $816K | 0.3% | 2026-Q2 |
| Bank of New York Mellon Corp added | 58,963 | $804K | 0.3% | 2026-Q2 |
| AMERICAN CENTURY COMPANIES INC trimmed | 55,623 | $759K | 0.3% | 2026-Q2 |
| Equitable Holdings, Inc. added | 55,325 | $755K | 0.3% | 2026-Q2 |
| CAPTRUST FINANCIAL ADVISORS added | 55,248 | $754K | 0.3% | 2026-Q2 |
| MILLENNIUM MANAGEMENT LLC added | 49,414 | $674K | 0.2% | 2026-Q2 |
| MORGAN STANLEY added | 47,057 | $642K | 0.2% | 2026-Q2 |
| TUDOR INVESTMENT CORP ET AL added | 42,991 | $586K | 0.2% | 2026-Q2 |
| AQR CAPITAL MANAGEMENT LLC added | 42,603 | $581K | 0.2% | 2026-Q2 |
| UBS Group AG trimmed | 41,643 | $568K | 0.2% | 2026-Q2 |
| XTX Topco Ltd added | 41,072 | $560K | 0.2% | 2026-Q2 |
| MANGROVE PARTNERS IM, LLC new | 36,470 | $497K | 0.2% | 2026-Q2 |
| BANK OF AMERICA CORP /DE/ added | 35,339 | $482K | 0.2% | 2026-Q2 |
| RHUMBLINE ADVISERS trimmed | 28,966 | $395K | 0.1% | 2026-Q2 |
| ArrowMark Colorado Holdings LLC | 27,890 | $380K | 0.1% | 2026-Q2 |
| Flagstone Financial Management added | 24,775 | $338K | 0.1% | 2026-Q2 |
| Invesco Ltd. added | 23,502 | $321K | 0.1% | 2026-Q2 |
| ALLIANCEBERNSTEIN L.P. | 23,270 | $272K | 0.1% | 2026-Q2 |
| EntryPoint Capital, LLC added | 22,913 | $313K | 0.1% | 2026-Q2 |
| BNP PARIBAS FINANCIAL MARKETS added | 22,753 | $310K | 0.1% | 2026-Q2 |
| ExodusPoint Capital Management, LP trimmed | 22,533 | $307K | 0.1% | 2026-Q2 |
| DEUTSCHE BANK AG\ added | 21,503 | $293K | 0.1% | 2026-Q2 |
| FRANKLIN RESOURCES INC added | 20,500 | $280K | 0.1% | 2026-Q2 |
| FMR LLC added | 20,069 | $274K | 0.1% | 2026-Q2 |
| Susquehanna Portfolio Strategies, LLC trimmed | 19,857 | $271K | 0.1% | 2026-Q2 |
| WELLS FARGO & COMPANY/MN added | 19,599 | $267K | 0.1% | 2026-Q2 |
| Jump Financial, LLC added | 18,821 | $257K | 0.1% | 2026-Q2 |
| Cetera Investment Advisers trimmed | 18,588 | $254K | 0.1% | 2026-Q2 |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 17,518 | $239K | 0.1% | 2026-Q2 |
| Global Retirement Partners, LLC added | 17,213 | $235K | 0.1% | 2026-Q2 |
| Waterloo Capital, L.P. new | 16,800 | $229K | 0.1% | 2026-Q2 |
| BALYASNY ASSET MANAGEMENT L.P. added | 16,436 | $224K | 0.1% | 2026-Q2 |
| INSIGNEO ADVISORY SERVICES, LLC trimmed | 15,040 | $205K | 0.1% | 2026-Q2 |
| MERCER GLOBAL ADVISORS INC /ADV added | 14,963 | $204K | 0.1% | 2026-Q2 |
| Russell Investments Group, Ltd. added | 13,892 | $189K | 0.1% | 2026-Q2 |
| CITIGROUP INC added | 13,472 | $184K | 0.1% | 2026-Q2 |
| RAYMOND JAMES FINANCIAL INC trimmed | 12,506 | $171K | 0.1% | 2026-Q2 |
| RENAISSANCE TECHNOLOGIES LLC trimmed | 12,400 | $169K | 0.1% | 2026-Q2 |
| MetLife Investment Management, LLC trimmed | 11,905 | $162K | 0.1% | 2026-Q2 |
| Creative Planning trimmed | 10,726 | $146K | 0.1% | 2026-Q2 |
| JPMORGAN CHASE & CO added | 10,590 | $142K | 0.1% | 2026-Q2 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP trimmed | 10,381 | $142K | 0.1% | 2026-Q2 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. trimmed | 10,148 | $138K | 0.1% | 2026-Q2 |
| BFSG, LLC | 8,745 | $119K | 0.0% | 2026-Q2 |
| Vanguard Global Advisers, LLC trimmed | 7,925 | $108K | 0.0% | 2026-Q2 |
| SIMPLEX TRADING, LLC added | 6,555 | $89K | 0.0% | 2026-Q2 |
| BARCLAYS PLC added | 6,298 | $86K | 0.0% | 2026-Q2 |
| NEW YORK STATE COMMON RETIREMENT FUND added | 5,743 | $78K | 0.0% | 2026-Q2 |
| Police & Firemen's Retirement System of New Jersey | 5,581 | $76K | 0.0% | 2026-Q2 |
| PNC Financial Services Group, Inc. added | 5,008 | $68K | 0.0% | 2026-Q2 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 4,469 | $61K | 0.0% | 2026-Q2 |
| PITTENGER & ANDERSON INC | 4,250 | $58K | 0.0% | 2026-Q2 |
| OSAIC HOLDINGS, INC. added | 4,005 | $55K | 0.0% | 2026-Q2 |
| Security National Bank | 2,800 | $38K | 0.0% | 2026-Q2 |
| ROYAL BANK OF CANADA trimmed | 2,761 | $38K | 0.0% | 2026-Q2 |
| JONES FINANCIAL COMPANIES LLLP added | 2,439 | $33K | 0.0% | 2026-Q2 |
| Ameritas Investment Partners, Inc. | 2,278 | $31K | 0.0% | 2026-Q2 |
| Tower Research Capital LLC (TRC) added | 2,103 | $29K | 0.0% | 2026-Q2 |
| US BANCORP \DE\ trimmed | 2,093 | $29K | 0.0% | 2026-Q2 |
| Legal & General Group Plc | 1,989 | $27K | 0.0% | 2026-Q2 |
| Aquatic Capital Management LLC trimmed | 1,549 | $21K | 0.0% | 2026-Q2 |
| NISA INVESTMENT ADVISORS, LLC added | 1,507 | $21K | 0.0% | 2026-Q2 |
| GAMMA Investing LLC added | 956 | $13K | 0.0% | 2026-Q2 |
| Kilter Group LLC | 772 | $11K | 0.0% | 2026-Q2 |
| EverSource Wealth Advisors, LLC trimmed | 730 | $10K | 0.0% | 2026-Q2 |
| Farther Finance Advisors, LLC added | 595 | $8K | 0.0% | 2026-Q2 |
| VISION FINANCIAL MARKETS LLC added | 500 | $21K | 0.0% | 2026-Q2 |
| Grove Bank & Trust new | 500 | $7K | 0.0% | 2026-Q2 |
| Arax Advisory Partners trimmed | 425 | $6K | 0.0% | 2026-Q2 |
| Sterling Capital Management LLC trimmed | 420 | $6K | 0.0% | 2026-Q2 |
| SBI Securities Co., Ltd. | 394 | $5K | 0.0% | 2026-Q2 |
| Federation des caisses Desjardins du Quebec | 369 | $5K | 0.0% | 2026-Q2 |
| FIFTH THIRD BANCORP added | 361 | $5K | 0.0% | 2026-Q2 |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.