SEG · Seaport Entertainment Group 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 SEG
All superinvestors →Holder Concentration
Across 117 13F filersWho Holds SEG
Last 8 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: 116 filers, like-for-like change +95.5%; actively managed books +126.0%; index-like books +8.7%.
| Holder type | Share | Filers | Change |
|---|---|---|---|
| Registered adviser | 79.9% | 57 | +149.2% |
| Exempt adviser | 0.3% | 1 | -5.8% |
| Adviser | 8.5% | 4 | 0.0% |
| Bank | 3.1% | 16 | +7.7% |
| Insurer | 0.2% | 1 | -1.0% |
| Broker-dealer | 0.5% | 1 | -2.0% |
| Benefit plan | 0.0% | 2 | -16.6% |
| Non-US | 0.1% | 4 | +21.8% |
| Holding company | 6.3% | 5 | +11.5% |
| Unknown | 1.3% | 25 | +15.1% |
| Style | Share | Filers | Change |
|---|---|---|---|
| Index-like | 14.5% | 18 | +8.7% |
| Systematic-like | 0.5% | 2 | -20.0% |
| Concentrated | 62.6% | 22 | +268.9% |
| Diversified active | 22.4% | 74 | +10.6% |
| Not measured | 0.0% | 0 | — |
| Unknown | 0.0% | 0 | — |
| Turnover | Share | Filers | Change |
|---|---|---|---|
| Low turnover | 74.5% | 77 | +163.5% |
| Medium turnover | 16.3% | 26 | -0.7% |
| High turnover | 1.9% | 5 | -6.5% |
| Unknown | 7.3% | 8 | +64.0% |
| Not measured | 0.0% | 0 | — |
| Holding horizon | Share | Filers | Change |
|---|---|---|---|
| Short horizon | 54.0% | 10 | +793.9% |
| Medium horizon | 13.2% | 21 | +8.9% |
| Long horizon | 27.7% | 83 | -0.9% |
| Unknown | 5.2% | 2 | +1.4% |
| Not measured | 0.0% | 0 | — |
| 13F book size | Share | Filers | Change |
|---|---|---|---|
| Under $1B | 20.0% | 24 | +2.2% |
| $1B to $10B | 1.2% | 27 | -14.2% |
| $10B to $100B | 54.7% | 28 | +441.6% |
| $100B or more | 24.1% | 37 | +20.2% |
| Not measured | 0.0% | 0 | — |
| Client base | Share | Filers | Change |
|---|---|---|---|
| Individuals and high net worth | 3.8% | 26 | +5.1% |
| Pooled investment vehicles | 53.9% | 7 | +465.1% |
| Registered funds and BDCs | 13.2% | 9 | +29.8% |
| Pension and profit sharing plans | 0.0% | 1 | -40.9% |
| Insurance companies | 0.1% | 2 | 0.0% |
| Charitable organizations | 6.5% | 1 | +4.9% |
| Governments and sovereign funds | 1.4% | 3 | +31.4% |
| Corporations | 0.0% | 1 | 0.0% |
| Other investment advisers | 0.0% | 2 | -14.9% |
| Diversified | 0.8% | 4 | -0.6% |
| Other | 0.0% | 0 | -100.0% |
| Unknown | 20.3% | 60 | +3.8% |
| Private funds | Share | Filers | Change |
|---|---|---|---|
| Hedge funds | 62.1% | 15 | +254.9% |
| Private equity funds | 0.0% | 3 | +0.1% |
| Venture capital funds | 0.0% | 1 | +312.5% |
| Real estate funds | 0.0% | 3 | +3651.2% |
| Securitized asset funds | 0.0% | 1 | 0.0% |
| Other private funds | 7.0% | 7 | -5.5% |
| No private funds | 10.8% | 27 | +50.0% |
| Private funds, type not stated | 0.0% | 0 | — |
| Unknown | 20.1% | 59 | +5.5% |
| Location | Share | Filers | Change |
|---|---|---|---|
| United States | 99.5% | 104 | +96.5% |
| Outside the US | 0.5% | 12 | +2.5% |
The Sep 30, 2026 filing window is still open, so its bar carries the Jun 30, 2026 positions of filers that have not filed yet.
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 1 holder with no observed 2026-03-31 13F and 4 holders with no observed 2026-06-30 13F.
Conviction and Crowding
116 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 $794,628 (1 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 91.3% 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 SEG's active holders also own, quarter ended Jun 30, 2026Shareholder Targets
13F filers that own its peers but not SEG, quarter ended Jun 30, 2026Found through its holder-overlap peers: SGA, STHO, IPI, ARQ, NNDM, SEER, AXR, CLW, ALCO, PCYO, FULC, KELYA, ACTG, BCYC, PLRX, ABEO, ENGN, DRVN, NVS, BMY. 3,037 filers in all.
| # | Filer | In peers | Largest peers |
|---|---|---|---|
| 1 | PRIMECAP MANAGEMENT CO/CA/ Registered adviser, Diversified active | $2,469,232,791 2 held | BMY, NVS |
| 2 | Fisher Asset Management, LLC Adviser, Diversified active | $2,442,815,338 2 held | NVS, BMY |
| 3 | NORGES BANK Non-US, Index-like | $2,124,256,833 1 held | BMY |
| 4 | AMERIPRISE FINANCIAL INC Adviser, Diversified active | $1,629,262,228 8 held | BMY, NVS, CLW |
| 5 | Independent Franchise Partners LLP Registered adviser, Concentrated | $1,255,703,498 1 held | BMY |
| 6 | PZENA INVESTMENT MANAGEMENT LLC Registered adviser, Diversified active | $979,945,874 1 held | BMY |
| 7 | LOOMIS SAYLES & CO L P Registered adviser, Diversified active | $830,936,435 2 held | NVS, BMY |
| 8 | FRANKLIN RESOURCES INC Adviser, Diversified active | $789,341,131 6 held | NVS, BMY, IPI |
| 9 | SCHRODER INVESTMENT MANAGEMENT GROUP Registered adviser, Diversified active | $707,128,217 2 held | BMY, BCYC |
| 10 | ACADIAN ASSET MANAGEMENT LLC Unknown, Diversified active | $696,746,138 12 held | BMY, BCYC, IPI |
Fund Ownership of SEG by Fund Type
Registered funds' Form N-PORT reports for the quarter ended Jun 30, 2026Index funds and index ETFs hold 7.74% of shares outstanding.
| Fund type | Of shares outstanding | Shares |
|---|---|---|
| Index funds | 2.06% | 264,362 |
| Index ETFs | 5.68% | 727,706 |
| Active ETFs | 0.99% | 126,542 |
| Active funds | 2.95% | 378,486 |
| Unclassified | 0.22% | 28,190 |
| All registered funds | 11.91% | 1,525,286 |
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.
| Holder | Value (USD) | % of 13F | Shares | Type | Filed | Open |
|---|---|---|---|---|---|---|
| Large PERSHING SQUARE INC. Registered adviser | $133,632,548 | 45.25% | 5,023,780 | Shares | 2026-08-14 | |
| Small KAHN BROTHERS GROUP INC Adviser | $24,392,333 | 8.26% | 917,005 | Shares | 2026-08-17 | |
| Small GATE CITY CAPITAL MANAGEMENT, LLC Registered adviser | $19,238,396 | 6.51% | 723,248 | Shares | 2026-08-14 | |
| Large Rubric Capital Management LP Registered adviser | $15,122,898 | 5.12% | 568,530 | Shares | 2026-08-14 | |
| Mega BlackRock, Inc. Holding company | $14,712,988 | 4.98% | 553,120 | Shares | 2026-08-07 | |
| Mega DIMENSIONAL FUND ADVISORS LP Registered adviser | $10,548,654 | 3.57% | 396,566 | Shares | 2026-08-11 | |
| Mega VANGUARD PORTFOLIO MANAGEMENT LLC Registered adviser | $10,219,720 | 3.46% | 384,200 | Shares | 2026-08-13 | |
| Mega VANGUARD CAPITAL MANAGEMENT LLC Registered adviser | $9,138,403 | 3.09% | 343,549 | Shares | 2026-08-13 | |
| Large Cerity Partners LLC Registered adviser | $8,377,802 | 2.84% | 314,955 | Shares | 2026-08-14 | |
| Small Solas Capital Management, LLC Registered adviser | $5,662,927 | 1.92% | 212,892 | Shares | 2026-08-14 | |
| Mega GEODE CAPITAL MANAGEMENT, LLC Registered adviser | $5,536,417 | 1.87% | 208,136 | Shares | 2026-08-12 | |
| Mega STATE STREET CORP Bank | $4,943,290 | 1.67% | 185,838 | Shares | 2026-09-22 | |
| Small Rangeley Capital, LLC Registered adviser | $4,083,552 | 1.38% | 153,517 | Shares | 2026-08-14 | |
| Mega GOLDMAN SACHS GROUP INC Holding company | $3,121,349 | 1.06% | 117,344 | Shares | 2026-08-14 | |
| Small Peapod Lane Capital LLC Registered adviser | $2,337,984 | 0.79% | 102,140 | Shares | 2026-10-22 | |
| Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC Registered adviser | $1,691,414 | 0.57% | 63,587 | Shares | 2026-08-14 | |
| Mega NORTHERN TRUST CORP Bank | $1,608,262 | 0.54% | 60,461 | Shares | 2026-08-13 | |
| Mega LPL Financial LLC Broker-dealer | $1,375,512 | 0.47% | 51,711 | Shares | 2026-08-07 | |
| Mega AQR CAPITAL MANAGEMENT LLC Registered adviser | $1,360,160 | 0.46% | 51,134 | Shares | 2026-08-14 | |
| Mega VANGUARD FIDUCIARY TRUST CO | $1,353,408 | 0.46% | 50,880 | Shares | 2026-08-13 | |
| Small O'Keefe Stevens Advisory, Inc. Registered adviser | $1,233,061 | 0.42% | 53,869 | Shares | 2026-10-09 | |
| Mid HORIZON KINETICS ASSET MANAGEMENT LLC Registered adviser | $1,130,579 | 0.38% | 42,503 | Shares | 2026-08-11 | |
| Large Trexquant Investment LP Registered adviser | $908,948 | 0.31% | 34,171 | Shares | 2026-08-14 | |
| Mega PRICE T ROWE ASSOCIATES INC /MD/ Registered adviser | $842,235 | 0.29% | 31,663 | Shares | 2026-08-14 | |
| Small Gem Investment Advisors, LLC Exempt adviser | $745,119 | 0.25% | 28,012 | Shares | 2026-08-11 | |
| Large RENAISSANCE TECHNOLOGIES LLC Registered adviser | $744,773 | 0.25% | 27,999 | Shares | 2026-08-13 | |
| Large Quantinno Capital Management LP Registered adviser | $735,303 | 0.25% | 27,643 | Shares | 2026-08-13 | |
| Mega MORGAN STANLEY Holding company | $718,917 | 0.24% | 27,027 | Shares | 2026-08-13 | |
| Mega Bank of New York Mellon Corp Bank | $601,266 | 0.20% | 22,604 | Shares | 2026-08-06 | |
| Mid INGALLS & SNYDER LLC Registered adviser | $587,913 | 0.20% | 22,102 | Shares | 2026-08-14 | |
| Mega UBS Group AG Bank | $587,301 | 0.20% | 22,079 | Shares | 2026-08-13 | |
| Mid XTX Topco Ltd | $540,299 | 0.18% | 20,312 | Shares | 2026-08-14 | |
| Mega PRINCIPAL FINANCIAL GROUP INC Insurer | $484,810 | 0.16% | 18,226 | Shares | 2026-08-04 | |
| Large COMMERCE BANK Bank | $467,016 | 0.16% | 17,557 | Shares | 2026-08-12 | |
| Mid BRIDGEWAY CAPITAL MANAGEMENT, LLC Registered adviser | $446,481 | 0.15% | 16,785 | Shares | 2026-08-14 | |
| Large State of New Jersey Common Pension Fund D | $422,700 | 0.14% | 15,891 | Shares | 2026-08-04 | |
| Mega AMERICAN CENTURY COMPANIES INC | $403,788 | 0.14% | 15,180 | Shares | 2026-08-12 | |
| Large LAZARD ASSET MANAGEMENT LLC Adviser | $388,998 | 0.13% | 14,624 | Shares | 2026-08-14 | |
| Large Tidal Investments LLC Registered adviser | $378,970 | 0.13% | 14,247 | Shares | 2026-08-13 | |
| Mega Nuveen, LLC | $367,478 | 0.12% | 13,815 | Shares | 2026-08-11 | |
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $367,080 | 0.12% | 13,800 | Call | 2026-08-14 | |
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $356,440 | 0.12% | 13,400 | Put | 2026-08-14 | |
| Mid Moran Wealth Management, LLC Registered adviser | $345,501 | 0.12% | 15,094 | Shares | 2026-10-22 | |
| Mega DEUTSCHE BANK AG\ Non-US | $294,222 | 0.10% | 11,061 | Shares | 2026-08-07 | |
| Large GABELLI FUNDS LLC Registered adviser | $244,241 | 0.08% | 9,182 | Shares | 2026-08-12 | |
| Mega Invesco Ltd. Adviser | $242,936 | 0.08% | 9,133 | Shares | 2026-08-14 | |
| Mega BANK OF AMERICA CORP /DE/ Bank | $237,617 | 0.08% | 8,933 | Shares | 2026-08-14 | |
| Small Empirical Asset Management, LLC Registered adviser | $228,760 | 0.08% | 8,600 | Shares | 2026-08-10 | |
| Mega RHUMBLINE ADVISERS Registered adviser | $219,343 | 0.07% | 8,246 | Shares | 2026-08-12 | |
| Mid Quinn Opportunity Partners LLC Registered adviser | $213,225 | 0.07% | 8,016 | Shares | 2026-08-14 | |
| Small INDEPENDENT INVESTORS INC Registered adviser | $201,734 | 0.07% | 7,584 | Shares | 2026-07-16 | |
| Mega WELLS FARGO & COMPANY/MN Bank | $173,431 | 0.06% | 6,520 | Shares | 2026-08-14 | |
| Large MetLife Investment Management, LLC Registered adviser | $131,829 | 0.04% | 4,956 | Shares | 2026-08-14 | |
| Mega Russell Investments Group, Ltd. | $108,845 | 0.04% | 4,092 | Shares | 2026-08-06 | |
| Mega CITIGROUP INC Bank | $97,914 | 0.03% | 3,681 | Shares | 2026-08-03 | |
| Large MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | $92,913 | 0.03% | 3,493 | Shares | 2026-08-14 | |
| Mega JPMORGAN CHASE & CO Bank | $83,816 | 0.03% | 3,151 | Shares | 2026-08-12 | |
| Mega Vanguard Global Advisers, LLC Registered adviser | $79,613 | 0.03% | 2,993 | Shares | 2026-08-13 | |
| Large Police & Firemen's Retirement System of New Jersey | $46,204 | 0.02% | 1,737 | Shares | 2026-07-23 | |
| Large Arax Advisory Partners Registered adviser | $39,155 | 0.01% | 1,472 | Shares | 2026-08-10 | |
| Large NEW YORK STATE COMMON RETIREMENT FUND | $38,676 | 0.01% | 1,454 | Shares | 2026-07-29 | |
| Large STRS OHIO Benefit plan | $37,240 | 0.01% | 1,400 | Shares | 2026-07-30 | |
| Mega BNP PARIBAS ARBITRAGE, SA Non-US | $34,580 | 0.01% | 1,300 | Shares | 2026-08-13 | |
| Mega BARCLAYS PLC Bank | $32,451 | 0.01% | 1,220 | Shares | 2026-08-14 | |
| Mega FMR LLC Holding company | $24,817 | 0.01% | 933 | Shares | 2026-08-13 | |
| Mega ROYAL BANK OF CANADA Bank | $24,711 | 0.01% | 929 | Shares | 2026-08-14 | |
| Small Hilltop National Bank | $23,187 | 0.01% | 1,013 | Shares | 2026-10-14 | |
| Mid Ameritas Investment Partners, Inc. Registered adviser | $20,269 | 0.01% | 762 | Shares | 2026-08-13 | |
| Mega Legal & General Group Plc | $17,955 | 0.01% | 675 | Shares | 2026-08-14 | |
| Large NISA INVESTMENT ADVISORS, LLC Registered adviser | $16,229 | 0.01% | 709 | Shares | 2026-10-20 | |
| Mid Tower Research Capital LLC (TRC) | $12,448 | 0.00% | 468 | Shares | 2026-08-11 | |
| Mid Versant Capital Management, Inc Registered adviser | $7,645 | 0.00% | 334 | Shares | 2026-10-02 | |
| Mid Cullen/Frost Bankers, Inc. Bank | $5,506 | 0.00% | 207 | Shares | 2026-07-27 | |
| Mid GAMMA Investing LLC Registered adviser | $4,806 | 0.00% | 210 | Shares | 2026-10-08 | |
| Large ASSETMARK, INC Registered adviser | $3,662 | 0.00% | 160 | Shares | 2026-10-21 | |
| Mid MONTAG A & ASSOCIATES INC | $3,537 | 0.00% | 133 | Shares | 2026-08-05 | |
| Mid Sterling Capital Management LLC Registered adviser | $3,433 | 0.00% | 150 | Shares | 2026-10-22 | |
| Large Allworth Financial LP | $3,165 | 0.00% | 119 | Shares | 2026-08-11 | |
| Mega CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM Benefit plan | $2,766 | 0.00% | 104 | Shares | 2026-08-24 | |
| Mid Quent Capital, LLC Registered adviser | $2,447 | 0.00% | 92 | Shares | 2026-08-07 | |
| Mega JONES FINANCIAL COMPANIES LLLP | $1,968 | 0.00% | 74 | Shares | 2026-08-14 | |
| Large NATIXIS Non-US | $1,702 | 0.00% | 64 | Shares | 2026-08-13 | |
| Mid EverSource Wealth Advisors, LLC Registered adviser | $1,621 | 0.00% | 61 | Shares | 2026-07-24 | |
| Mid Leonteq Securities AG | $1,170 | 0.00% | 44 | Shares | 2026-07-27 | |
| Small SJS Investment Consulting Inc. Registered adviser | $961 | 0.00% | 42 | Shares | 2026-10-26 | |
| Small Lummis Asset Management, LP | $957 | 0.00% | 36 | Shares | 2026-08-03 | |
| Small Costello Asset Management, INC | $957 | 0.00% | 36 | Shares | 2026-07-28 | |
| Small Essential Partners LLC Registered adviser | $938 | 0.00% | 41 | Shares | 2026-10-14 | |
| Mid ROTHSCHILD INVESTMENT LLC Registered adviser | $877 | 0.00% | 33 | Shares | 2026-08-06 | |
| Mid IFP Advisors, Inc Registered adviser | $869 | 0.00% | 38 | Shares | 2026-10-16 | |
| Mid Global Retirement Partners, LLC | $824 | 0.00% | 31 | Shares | 2026-08-06 | |
| Mega PNC FINANCIAL SERVICES GROUP, INC. Bank | $824 | 0.00% | 31 | Shares | 2026-08-07 | |
| Small McMillan Office, Inc. Registered adviser | $744 | 0.00% | 28 | Shares | 2026-08-13 | |
| Large Farther Finance Advisors, LLC Registered adviser | $732 | 0.00% | 32 | Shares | 2026-10-08 | |
| Mid Smartleaf Asset Management LLC Registered adviser | $425 | 0.00% | 16 | Shares | 2026-08-12 | |
| Mid Laurel Wealth Advisors LLC Registered adviser | $412 | 0.00% | 18 | Shares | 2026-10-27 | |
| Mid Root Financial Partners, LLC Registered adviser | $389 | 0.00% | 17 | Shares | 2026-10-21 | |
| Mid SBI Securities Co., Ltd. Non-US | $320 | 0.00% | 14 | Shares | 2026-10-22 | |
| Mid North Star Investment Management Corp. Adviser | $297 | 0.00% | 13 | Shares | 2026-10-27 | |
| Small True Wealth Design, LLC Registered adviser | $274 | 0.00% | 12 | Shares | 2026-10-13 |
Showing the top 100 of 118 holders. Create a free account to see every holder, past quarters, search, filters and CSV export.