STRK · Strategy Inc · Holdings
Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.
Institutional Ownership Trend
Superinvestors Holding STRK
All superinvestors →Holder Concentration
Across 10 13F filers · Δ vs Jun 30, 2026Who Holds STRK
Last 7 quarters through Sep 30, 2026 (filing window open)Each kind of 13F filer's share of the common shares 13F filers report. Holder type comes from regulatory records, never the filer's name; style, turnover and horizon are measured from each filer's own 13F book. The quarter selector does not change this card.
Jun 30, 2026, the newest closed quarter: 84 filers, like-for-like change -13.6%; actively managed books -13.7%; index-like books -13.2%.
| Holder type | Share | Filers | Change |
|---|---|---|---|
| Registered adviser | 27.6% | 40 | -21.2% |
| Exempt adviser | 0.1% | 1 | -36.4% |
| Adviser | 34.8% | 2 | -13.4% |
| Bank | 4.1% | 8 | -7.2% |
| Broker-dealer | 1.2% | 2 | -73.3% |
| Holding company | 20.4% | 5 | -2.5% |
| Non-US | 0.0% | 0 | -100.0% |
| Unknown | 11.7% | 26 | +14.2% |
| Style | Share | Filers | Change |
|---|---|---|---|
| Index-like | 24.1% | 5 | -13.2% |
| Concentrated | 8.4% | 17 | -33.4% |
| Diversified active | 67.6% | 62 | -5.7% |
| Systematic-like | 0.0% | 0 | -100.0% |
| Not measured | 0.0% | 0 | — |
| Unknown | 0.0% | 0 | — |
| Turnover | Share | Filers | Change |
|---|---|---|---|
| Low turnover | 61.7% | 52 | -13.1% |
| Medium turnover | 31.1% | 17 | -15.6% |
| High turnover | 6.7% | 9 | -8.3% |
| Unknown | 0.5% | 6 | -12.1% |
| Not measured | 0.0% | 0 | — |
| Holding horizon | Share | Filers | Change |
|---|---|---|---|
| Short horizon | 2.8% | 8 | +23.1% |
| Medium horizon | 30.5% | 17 | -12.2% |
| Long horizon | 62.2% | 53 | -18.0% |
| Unknown | 4.6% | 6 | +56.8% |
| Not measured | 0.0% | 0 | — |
| 13F book size | Share | Filers | Change |
|---|---|---|---|
| Under $1B | 17.0% | 28 | -3.4% |
| $1B to $10B | 2.4% | 20 | -53.6% |
| $10B to $100B | 16.0% | 18 | +42.8% |
| $100B or more | 64.6% | 18 | -21.0% |
| Not measured | 0.0% | 0 | — |
| Client base | Share | Filers | Change |
|---|---|---|---|
| Individuals and high net worth | 4.6% | 29 | -49.5% |
| Pooled investment vehicles | 9.0% | 6 | -32.7% |
| Registered funds and BDCs | 14.0% | 4 | +11.3% |
| Diversified | 0.0% | 1 | -79.5% |
| Pension and profit sharing plans | 0.0% | 0 | -100.0% |
| Insurance companies | 0.0% | 0 | — |
| Corporations | 0.0% | 0 | — |
| Unknown | 72.4% | 44 | -10.3% |
| Private funds | Share | Filers | Change |
|---|---|---|---|
| Hedge funds | 8.5% | 9 | -1.7% |
| Venture capital funds | 4.1% | 1 | -47.0% |
| Real estate funds | 0.9% | 2 | +34.2% |
| Other private funds | 3.9% | 3 | -0.1% |
| Private funds, type not stated | 5.8% | 1 | -8.9% |
| No private funds | 4.6% | 25 | -43.0% |
| Private equity funds | 0.0% | 0 | — |
| Unknown | 72.2% | 43 | -10.2% |
| Location | Share | Filers | Change |
|---|---|---|---|
| United States | 92.0% | 75 | -15.3% |
| Outside the US | 8.0% | 9 | +12.7% |
The Sep 30, 2026 filing window is still open, so its bar shows only the filers that have filed so far.
How the mix is measured
Shares are 13F common shares restated to today's split basis; options and principal amounts are left out. The change compares only filers with a 13F in both quarters and keeps each filer in its bucket of the later quarter on both sides; a filer that continues under a new CIK is compared through its successor. Holder type comes from each filer's current regulatory profile; client base and private funds come from the Form ADV roster current at each quarter end (rosters from December 2019, so an earlier quarter reads Unknown). Style, turnover, horizon and book size are measured from each filer's 13F book in the newest measured quarter, and Not measured means none was. Actively managed books are those measured systematic-like, concentrated or diversified active.
Excluded 4 holders with no observed 2026-03-31 13F and 1 holder with no observed 2026-06-30 13F.
Conviction and Crowding
84 13F filers, quarter ended Jun 30, 2026Measured across every 13F filer's common-share book once the quarter's filing window closed. Crowding counts filers with high turnover or that advise private funds on Form ADV.
Managers in the top fifth by current three-year FundScore alpha were net buyers of $0 (0 buying, 0 selling).
Estimated Holder Cost Basis
Quarter ended Jun 30, 2026, on that quarter's share basisEstimated, never filed: each 13F buy is costed at its quarter's average traded price and each sale keeps the average cost, so this is what holders paid on average if they traded evenly through each quarter.
Estimated cost covers 99.6% of the 13F shares; positions already held when a filer's 13F history starts, or bought in a quarter without a trusted average price, have no estimate.
Shared Holders
Companies STRK's active holders also own, quarter ended Jun 30, 2026| # | Company | Shared holders |
|---|---|---|
| 1 | BMNR Bitmine Immersion Technologies, Inc. | 40 |
| 2 | SMCI Super Micro Computer, Inc. | 31 |
| 3 | COIN Coinbase Global, Inc. | 39 |
| 4 | PLTR Palantir Technologies Inc. | 112 |
| 5 | TSLA Tesla, Inc. | 152 |
| 6 | CRCL Circle Internet Group, Inc. | 23 |
| 7 | HOOD Robinhood Markets, Inc. | 48 |
| 8 | MU Micron Technology Inc | 135 |
| 9 | GOOGL Alphabet Inc. | 178 |
| 10 | ASST Strive, Inc. | 9 |
Shareholder Targets
13F filers that own its peers but not STRK, quarter ended Jun 30, 2026Found through its holder-overlap peers: BMNR, SMCI, COIN, PLTR, TSLA, CRCL, HOOD, MU, GOOGL, ASST, AMD, AMZN, META, NVDA, AAPL, MSFT, SPCX, AVGO, LLY, INTC. 6,445 filers in all.
| # | Filer | In peers | Largest peers |
|---|---|---|---|
| 1 | LILLY ENDOWMENT INC Unknown, Unknown | $108,400,867,760 1 held | LLY |
| 2 | Berkshire Hathaway Inc Insurer, Concentrated | $103,714,385,303 2 held | AAPL, GOOGL |
| 3 | DIMENSIONAL FUND ADVISORS LP Registered adviser, Diversified active | $100,773,444,781 18 held | NVDA, AAPL, MSFT |
| 4 | Alphabet Inc. Unknown, Concentrated | $94,176,237,970 1 held | SPCX |
| 5 | Valor Management LLC Adviser, Concentrated | $86,013,406,595 1 held | SPCX |
| 6 | Fisher Asset Management, LLC Adviser, Diversified active | $84,049,867,569 16 held | NVDA, AAPL, GOOGL |
| 7 | JENNISON ASSOCIATES LLC Registered adviser, Diversified active | $80,183,945,469 15 held | NVDA, GOOGL, AAPL |
| 8 | PRIMECAP MANAGEMENT CO/CA/ Registered adviser, Diversified active | $64,457,057,433 14 held | MU, LLY, INTC |
| 9 | MASSACHUSETTS FINANCIAL SERVICES CO /MA/ Registered adviser, Diversified active | $59,146,834,189 15 held | NVDA, GOOGL, AAPL |
| 10 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP Registered adviser, Diversified active | $52,518,139,973 13 held | GOOGL, MSFT, AMZN |
Fund Ownership of STRK by Fund Type
Registered funds' Form N-PORT reports for the quarter ended Jun 30, 2026Index funds and index ETFs hold 1,230,651 shares.
| Fund type | Shares |
|---|---|
| Index funds | 0 |
| Index ETFs | 1,230,651 |
| Active ETFs | 78,190 |
| Active funds | 14,200 |
| Unclassified | 0 |
| All registered funds | 1,323,041 |
How fund types are measured
Each fund series counts once, with its latest Form N-PORT report dated inside the quarter; only long share positions count, restated to today's split basis. The fund type is the series' latest Form N-CEN answer on or before the quarter end (the index-fund box and the exchange-traded flag), never its name. Unclassified funds have no usable N-CEN; unit investment trusts are among them, so index ownership is a floor. Funds sit inside their advisers' 13F reports, so these shares overlap the 13F figures and are never added to them.
Quarterly Activity
New and Sold Out count only filers that reported a 13F for both quarters: a first-time filer's book is not a buy, and a fund that has not filed, or withheld its positions under confidential treatment, has not sold.
Top Buyers
vs Jun 30, 2026| Institution | Added | Now Holds | Open |
|---|---|---|---|
| Small Alliance Wealth Advisors, LLC | +98 | 3,833 | |
| Small Moisand Fitzgerald Tamayo, LLC | +19 | 735 | |
| Small Planning Strategies Inc. | +9 | 336 |
Top Sellers
vs Jun 30, 2026Top New Positions
vs Jun 30, 2026| Institution | Acquired | Value (USD) | Open |
|---|---|---|---|
| Mid INDEPENDENT FINANCIAL GROUP, LLC | 9,195 | $681,901 | |
| Mid MISSION WEALTH MANAGEMENT, LP | 5,501 | $407,954 | |
| Small Key Client Fiduciary Advisors, LLC | 3,161 | $234,419 |
Top Sold-Out Positions
vs Jun 30, 2026| Holder | Value (USD) | % of 13F | Shares | Type | Filed | Open |
|---|---|---|---|---|---|---|
| Mid INDEPENDENT FINANCIAL GROUP, LLC Registered adviser STRK | $681,901 | 34.14% | 9,195 | Shares | 2026-10-13 | |
| Mid MISSION WEALTH MANAGEMENT, LP Registered adviser STRK | $407,954 | 20.42% | 5,501 | Shares | 2026-10-15 | |
| Small Ulland Investment Advisors, LLC Registered adviser STRK | $292,932 | 14.67% | 3,950 | Shares | 2026-10-13 | |
| Small Alliance Wealth Advisors, LLC Registered adviser STRK | $284,255 | 14.23% | 3,833 | Shares | 2026-10-14 | |
| Small Key Client Fiduciary Advisors, LLC Registered adviser STRK | $234,419 | 11.74% | 3,161 | Shares | 2026-10-19 | |
| Small Moisand Fitzgerald Tamayo, LLC Registered adviser STRK | $54,507 | 2.73% | 735 | Shares | 2026-10-15 | |
| Small Planning Strategies Inc. Registered adviser STRK | $24,917 | 1.25% | 336 | Shares | 2026-10-02 | |
| Large Farther Finance Advisors, LLC Registered adviser STRK | $7,786 | 0.39% | 105 | Shares | 2026-10-08 | |
| Mid IFP Advisors, Inc Registered adviser STRK | $6,526 | 0.33% | 88 | Shares | 2026-10-16 | |
| Small Triumph Capital Management Registered adviser STRK | $2,224 | 0.11% | 30 | Shares | 2026-10-14 |