Vault-13

SEAPORT ENTMT GROUP INC SEG

COMMON STOCK · Common Stock · CUSIP 812215200 · ISIN US8122152007

117 institutional holders -1 vs Q1 2026
11,127,44611.1m shares reported held*
86.9% of all shares outstanding*
$296.0mreported value*
14 new 38 added 24 reduced 12 sold out net bought ≈ $143.3m (+5.4m shares)

* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($32.9k this quarter). Holder counts are more reliable. Shares outstanding: 12.8m as of 2026-08-03, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $26.60. Options: 2 managers hold calls ($393.7k notional), 1 hold puts ($356.4k).

Trends to Q2 2026

Institutional holders

Managers reporting a position, each quarter

050100150Q3 24: 119Q4 24: 128Q1 25: 123Q2 25: 104Q3 25: 101Q4 25: 113Q1 26: 118Q2 26: 117117Q3 24Q1 25Q3 25Q1 26Q2 26
Numbers
QuarterHolders
Q3 2024119
Q4 2024128
Q1 2025123
Q2 2025104
Q3 2025101
Q4 2025113
Q1 2026118
Q2 2026117

Buyers vs sellers

Managers adding to or starting a position, vs cutting or selling out

Bought or addedCut or sold out
1000100Q4 24: 71 bought or addedQ4 24: 41 cut or sold outQ4 24Q1 25: 44 bought or addedQ1 25: 64 cut or sold outQ2 25: 50 bought or addedQ2 25: 69 cut or sold outQ2 25Q3 25: 37 bought or addedQ3 25: 52 cut or sold outQ4 25: 41 bought or addedQ4 25: 49 cut or sold outQ4 25Q1 26: 54 bought or addedQ1 26: 49 cut or sold outQ2 26: 52 bought or addedQ2 26: 36 cut or sold outQ2 26
Numbers
QuarterBought or addedCut or sold out
Q4 20247141
Q1 20254464
Q2 20255069
Q3 20253752
Q4 20254149
Q1 20265449
Q2 20265236

Calls vs puts

Options held, notional value, last 4 quarters. P/C = puts ÷ calls

CallsPuts
$0$200k$400k$600kQ3 25 calls: $494.2kQ3 25 puts: $587.1kQ3 25P/C 1.19Q4 25 calls: $4.0kQ4 25 puts: $94.6kQ4 25P/C 23.93Q1 26 calls: $242.7kQ1 26 puts: $227.7kQ1 26P/C 0.94Q2 26 calls: $393.7kQ2 26 puts: $356.4kQ2 26P/C 0.91
Numbers
QuarterCallsPutsP/C
Q3 2025$494.2k$587.1k1.19
Q4 2025$4.0k$94.6k23.93
Q1 2026$242.7k$227.7k0.94
Q2 2026$393.7k$356.4k0.91

Biggest buyers

PERSHING SQUARE INC. New +5,023,780+5.0m
VANGUARD PORTFOLIO MANAGEMENT LLC Added +341,138+341.1k
BlackRock, Inc. Added +47,491+47.5k
GATE CITY CAPITAL MANAGEMENT, LLC Added +33,801+33.8k
AQR CAPITAL MANAGEMENT LLC Added +27,904+27.9k
KAHN BROTHERS GROUP INC Added +23,778+23.8k
GEODE CAPITAL MANAGEMENT, LLC Added +23,116+23.1k
Peapod Lane Capital LLC Added +17,345+17.3k
Trexquant Investment LP Added +16,601+16.6k
VANGUARD CAPITAL MANAGEMENT LLC Added +15,864+15.9k

Biggest sellers

Focus Partners Wealth Sold out -59,600-59.6k
DIMENSIONAL FUND ADVISORS LP Reduced -58,581-58.6k
RENAISSANCE TECHNOLOGIES LLC Reduced -54,301-54.3k
LAZARD ASSET MANAGEMENT LLC Reduced -32,844-32.8k
Marnell Management LLC Sold out -32,300-32.3k
CITADEL ADVISORS LLC Sold out -25,800-25.8k
ArrowMark Colorado Holdings LLC Sold out -18,406-18.4k
Solas Capital Management, LLC Reduced -10,026-10.0k
HORIZON KINETICS ASSET MANAGEMENT LLC Reduced -9,937-9.9k
Odyssean, LLC Sold out -9,723-9.7k

Biggest calls

SUSQUEHANNA INTERNATIONAL GROUP, LLP Added $367.1k13.8k shares
SIMPLEX TRADING, LLC Added $26.6k1.0k shares

Biggest puts

SUSQUEHANNA INTERNATIONAL GROUP, LLP New $356.4k13.4k shares

Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.

Major shareholders (over 5%)

Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.

HolderStakeChangeShares Last filed
KAHN BROTHERS GROUP INC 13G · institution new · filed 2026-05-08 7.0% new 893.2k≈ $23.8m 2026-05-08
GATE CITY CAPITAL MANAGEMENT, LLC 13G · institution new · filed 2026-05-15 5.4% new 689.4k≈ $18.3m 2026-05-15

Insider purchases and sales since 1 Apr 2026

Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.

None reported since 1 Apr 2026.

Holders, Q2 2026

#ManagerLocationShares Value% of their portfolioChangeShares change
1 PERSHING SQUARE INC. 0.69% of their portfolio NEW YORK, NY 5,023,7805.0m $133.6m $133.6m 0.69% New
2 KAHN BROTHERS GROUP INC 3.86% of their portfolio NEW YORK, NY 917,005917.0k $24.4m $24.4m 3.86% Added +23.8k +23,778
3 GATE CITY CAPITAL MANAGEMENT, LLC 4.99% of their portfolio CHICAGO, IL 723,248723.2k $19.2m $19.2m 4.99% Added +33.8k +33,801
4 Rubric Capital Management LP 0.14% of their portfolio NEW YORK, NY 568,530568.5k $15.1m $15.1m 0.14% Unchanged
5 BlackRock, Inc. 0.00% of their portfolio New York, NY 553,120553.1k $14.7m $14.7m 0.00% Added +47.5k +47,491
6 DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio AUSTIN, TX 396,566396.6k $10.5m $10.5m 0.00% Reduced -58.6k -58,581
7 VANGUARD PORTFOLIO MANAGEMENT LLC 0.00% of their portfolio MALVERN, PA 384,200384.2k $10.2m $10.2m 0.00% Added +341.1k +341,138
8 VANGUARD CAPITAL MANAGEMENT LLC 0.00% of their portfolio MALVERN, PA 343,549343.5k $9.1m $9.1m 0.00% Added +15.9k +15,864
9 Cerity Partners LLC 0.01% of their portfolio NEW YORK, NY 314,955315.0k $8.4m $8.4m 0.01% Reduced -4.0k -3,964
10 Solas Capital Management, LLC 3.03% of their portfolio DARIEN, CT 212,892212.9k $5.7m $5.7m 3.03% Reduced -10.0k -10,026
11 GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio BOSTON, MA 208,136208.1k $5.5m $5.5m 0.00% Added +23.1k +23,116
12 STATE STREET CORP 0.00% of their portfolio BOSTON, MA 185,838185.8k $4.9m $4.9m 0.00% Added +7.9k +7,857
13 Rangeley Capital, LLC 3.80% of their portfolio NEW CANAAN, CT 153,517153.5k $4.1m $4.1m 3.80% Unchanged
14 GOLDMAN SACHS GROUP INC 0.00% of their portfolio NEW YORK, NY 117,344117.3k $3.1m $3.1m 0.00% Added +13.1k +13,148
15 Peapod Lane Capital LLC 1.97% of their portfolio Bedford Hills, NY 109,851109.9k $2.9m $2.9m 1.97% Added +17.3k +17,345
16 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio SAN FRANCISCO, CA 63,58763.6k $1.7m $1.7m 0.00% Added +1.6k +1,581
17 NORTHERN TRUST CORP 0.00% of their portfolio CHICAGO, IL 60,46160.5k $1.6m $1.6m 0.00% Added +3.3k +3,308
18 LPL Financial LLC 0.00% of their portfolio FORT MILL, SC 51,71151.7k $1.4m $1.4m 0.00% Reduced -1.1k -1,055
19 AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio Greenwich, CT 51,13451.1k $1.4m $1.4m 0.00% Added +27.9k +27,904
20 VANGUARD FIDUCIARY TRUST CO 0.00% of their portfolio MALVERN, PA 50,88050.9k $1.4m $1.4m 0.00% Added +2.6k +2,616
21 O'Keefe Stevens Advisory, Inc. 0.27% of their portfolio ROCHESTER, NY 49,08549.1k $1.3m $1.3m 0.27% Added +1.4k +1,415
22 HORIZON KINETICS ASSET MANAGEMENT LLC 0.01% of their portfolio NEW YORK, NY 42,50342.5k $1.1m $1.1m 0.01% Reduced -9.9k -9,937
23 Trexquant Investment LP 0.01% of their portfolio STAMFORD, CT 34,17134.2k $908.9k $908.9k 0.01% Added +16.6k +16,601
24 PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio BALTIMORE, MD 31,66331.7k $843.0k $843.0k 0.00% Added +6.0k +6,012
25 Gem Investment Advisors, LLC 0.46% of their portfolio TEANECK, NJ 28,01228.0k $745.1k $745.1k 0.46% Reduced -1.7k -1,726
26 RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio NEW YORK, NY 27,99928.0k $744.8k $744.8k 0.00% Reduced -54.3k -54,301
27 Quantinno Capital Management LP 0.00% of their portfolio NEW YORK, NY 27,64327.6k $735.3k $735.3k 0.00% Added +3.5k +3,502
28 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 27,02727.0k $718.9k $718.9k 0.00% Added +11.5k +11,493
29 Bank of New York Mellon Corp 0.00% of their portfolio NEW YORK, NY 22,60422.6k $601.3k $601.3k 0.00% Added +2.1k +2,088
30 INGALLS & SNYDER LLC 0.02% of their portfolio NEW YORK, NY 22,10222.1k $588.0k $588.0k 0.02% Reduced -32 -32
31 UBS Group AG 0.00% of their portfolio ZURICH, V8 22,07922.1k $587.3k $587.3k 0.00% Reduced -2.4k -2,381
32 XTX Topco Ltd 0.01% of their portfolio LONDON, X0 20,31220.3k $540.3k $540.3k 0.01% Added +833 +833
33 PRINCIPAL FINANCIAL GROUP INC 0.00% of their portfolio DES MOINES, IA 18,22618.2k $484.8k $484.8k 0.00% Reduced -184 -184
34 COMMERCE BANK 0.00% of their portfolio KANSAS CITY, MO 17,55717.6k $467.0k $467.0k 0.00% Unchanged
35 BRIDGEWAY CAPITAL MANAGEMENT, LLC 0.01% of their portfolio HOUSTON, TX 16,78516.8k $446.5k $446.5k 0.01% Unchanged
36 State of New Jersey Common Pension Fund D 0.00% of their portfolio TRENTON, NJ 15,89115.9k $422.7k $422.7k 0.00% Unchanged
37 AMERICAN CENTURY COMPANIES INC 0.00% of their portfolio KANSAS CITY, MO 15,18015.2k $403.8k $403.8k 0.00% Added +4.5k +4,536
38 Marquette Asset Management, LLC 0.05% of their portfolio MINNEAPOLIS, MN 14,74914.7k $392.3k $392.3k 0.05% New
39 LAZARD ASSET MANAGEMENT LLC 0.00% of their portfolio NEW YORK, NY 14,62414.6k $389.0k $389.0k 0.00% Reduced -32.8k -32,844
40 Moran Wealth Management, LLC 0.01% of their portfolio NAPLES, FL 14,33014.3k $381.2k $381.2k 0.01% Added +3.4k +3,395
41 Tidal Investments LLC 0.00% of their portfolio Milwaukee, WI 14,24714.2k $379.0k $379.0k 0.00% Reduced -1.6k -1,604
42 Nuveen, LLC 0.00% of their portfolio CHARLOTTE, NC 13,81513.8k $367.5k $367.5k 0.00% Unchanged
43 CITIZENS FINANCIAL GROUP INC/RI 0.00% of their portfolio PROVIDENCE, RI 11,66011.7k $310.2k $310.2k 0.00% Unchanged
44 DEUTSCHE BANK AG\ 0.00% of their portfolio FRANKFURT AM MAIN, 2M 11,06111.1k $294.2k $294.2k 0.00% Added +2.6k +2,641
45 GABELLI FUNDS LLC 0.00% of their portfolio Rye, NY 9,1829.2k $244.2k $244.2k 0.00% New
46 Invesco Ltd. 0.00% of their portfolio ATLANTA, GA 9,1339.1k $242.9k $242.9k 0.00% New
47 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 8,9338.9k $237.6k $237.6k 0.00% New
48 Empirical Asset Management, LLC 0.05% of their portfolio WELLESLEY, MA 8,6008.6k $228.8k $228.8k 0.05% New
49 RHUMBLINE ADVISERS 0.00% of their portfolio BOSTON, MA 8,2468.2k $219.3k $219.3k 0.00% Added +2.5k +2,476
50 Quinn Opportunity Partners LLC 0.01% of their portfolio CHARLOTTESVILLE, VA 8,0168.0k $213.2k $213.2k 0.01% New
51 INDEPENDENT INVESTORS INC 0.04% of their portfolio NESCONSET, NY 7,5847.6k $201.7k $201.7k 0.04% New
52 WELLS FARGO & COMPANY/MN 0.00% of their portfolio SAN FRANCISCO, CA 6,5206.5k $173.4k $173.4k 0.00% Added +3.5k +3,532
53 MetLife Investment Management, LLC 0.00% of their portfolio Whippany, NJ 4,9565.0k $131.8k $131.8k 0.00% Unchanged
54 Russell Investments Group, Ltd. 0.00% of their portfolio Seattle, WA 4,0924.1k $108.9k $108.9k 0.00% Added +3.4k +3,414
55 CITIGROUP INC 0.00% of their portfolio NEW YORK, NY 3,6813.7k $97.9k $97.9k 0.00% Added +3.2k +3,156
56 MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% of their portfolio CAUSEWAY BAY, K3 3,4933.5k $92.9k $92.9k 0.00% Reduced -96 -96
57 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 3,1513.2k $85.6k $85.6k 0.00% Reduced -2.2k -2,203
58 Vanguard Global Advisers, LLC 0.00% of their portfolio MALVERN, PA 2,9933.0k $79.6k $79.6k 0.00% Unchanged
59 Police & Firemen's Retirement System of New Jersey 0.00% of their portfolio TRENTON, NJ 1,7371.7k $46.2k $46.2k 0.00% Unchanged
60 Arax Advisory Partners 0.00% of their portfolio NEW YORK, NY 1,4721.5k $39.2k $39.2k 0.00% New
61 NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio ALBANY, NY 1,4541.5k $38.7k $38.7k 0.00% Unchanged
62 STRS OHIO 0.00% of their portfolio COLUMBUS, OH 1,4001.4k $37.2k $37.2k 0.00% Unchanged
63 BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio PARIS, I0 1,3001.3k $34.6k $34.6k 0.00% Reduced -418 -418
64 BARCLAYS PLC 0.00% of their portfolio LONDON, X0 1,2201.2k $32.5k $32.5k 0.00% Reduced -267 -267
65 Hilltop National Bank 0.01% of their portfolio CASPER, WY 1,0131.0k $26.9k $26.9k 0.01% Unchanged
66 FMR LLC 0.00% of their portfolio BOSTON, MA 933933 $24.8k $24.8k 0.00% Added +11 +11
67 ROYAL BANK OF CANADA 0.00% of their portfolio TORONTO, A6 929929 $24.0k $24.0k 0.00% Added +713 +713
68 Ameritas Investment Partners, Inc. 0.00% of their portfolio LINCOLN, NE 762762 $20.3k $20.3k 0.00% Unchanged
69 NISA INVESTMENT ADVISORS, LLC 0.00% of their portfolio ST. LOUIS, MO 709709 $18.9k $18.9k 0.00% Reduced -491 -491
70 Legal & General Group Plc 0.00% of their portfolio London, X0 675675 $18.0k $18.0k 0.00% Unchanged
71 Tower Research Capital LLC (TRC) 0.00% of their portfolio NEW YORK, NY 468468 $12.4k $12.4k 0.00% Reduced -856 -856
72 Integrated Wealth Concepts LLC 0.00% of their portfolio WALTHAM, MA 353353 $9.4k $9.4k 0.00% New
73 Versant Capital Management, Inc 0.00% of their portfolio PHOENIX, AZ 334334 $8.9k $8.9k 0.00% Unchanged
74 Cullen/Frost Bankers, Inc. 0.00% of their portfolio San Antonio, TX 207207 $5.5k $5.5k 0.00% Unchanged
75 ASSETMARK, INC 0.00% of their portfolio CONCORD, CA 160160 $4.3k $4.3k 0.00% Added +80 +80
76 Sterling Capital Management LLC 0.00% of their portfolio CHARLOTTE, NC 153153 $4.1k $4.1k 0.00% Reduced -94 -94
77 MONTAG A & ASSOCIATES INC 0.00% of their portfolio ATLANTA, GA 133133 $3.5k $3.5k 0.00% Unchanged
78 Allworth Financial LP 0.00% of their portfolio FOLSOM, CA 119119 $3.2k $3.2k 0.00% Added +95 +95
79 CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio WEST SACRAMENTO, CA 104104 $2.8k $2.8k 0.00% Reduced -299 -299
80 Quent Capital, LLC 0.00% of their portfolio NEW YORK, NY 9292 $2.4k $2.4k 0.00% Reduced -580 -580
81 GAMMA Investing LLC 0.00% of their portfolio FOSTER CITY, CA 8787 $2.3k $2.3k 0.00% Reduced -18 -18
82 JONES FINANCIAL COMPANIES LLLP 0.00% of their portfolio DES PERES, MO 7474 $2.0k $2.0k 0.00% Unchanged
83 NATIXIS 0.00% of their portfolio PARIS, I0 6464 $1.6k $1.6k 0.00% Unchanged
84 EverSource Wealth Advisors, LLC 0.00% of their portfolio BIRMINGHAM, AL 6161 $1.6k $1.6k 0.00% Added +27 +27
85 Leonteq Securities AG 0.00% of their portfolio ZURICH, V8 4444 $1.2k $1.2k 0.00% Unchanged
86 Essential Partners LLC 0.00% of their portfolio RANCHO SANTA FE, CA 4141 $1.1k $1.1k 0.00% Reduced -245 -245
87 Costello Asset Management, INC 0.00% of their portfolio FEASTERVILLE, PA 3636 $958 $958 0.00% Unchanged
88 Lummis Asset Management, LP 0.00% of their portfolio FORT WORTH, TX 3636 $958 $958 0.00% Unchanged
89 ROTHSCHILD INVESTMENT LLC 0.00% of their portfolio CHICAGO, IL 3333 $878 $878 0.00% Added +25 +25
90 PNC Financial Services Group, Inc. 0.00% of their portfolio Pittsburgh, PA 3131 $825 $825 0.00% Reduced -13 -13
91 Global Retirement Partners, LLC 0.00% of their portfolio San Rafael, CA 3131 $825 $825 0.00% First filing
92 IFP Advisors, Inc 0.00% of their portfolio TAMPA, FL 2929 $771 $771 0.00% Added +25 +25
93 McMillan Office, Inc. 0.00% of their portfolio ST. CLAIR SHORES, MI 2828 $745 $745 0.00% Unchanged
94 Farther Finance Advisors, LLC 0.00% of their portfolio SAN FRANCISCO, CA 2727 $718 $718 0.00% Added +25 +25
95 Smartleaf Asset Management LLC 0.00% of their portfolio BOSTON, MA 1616 $435 $435 0.00% Unchanged
96 SBI Securities Co., Ltd. 0.00% of their portfolio TOKYO, M0 1414 $372 $372 0.00% Unchanged
97 North Star Investment Management Corp. 0.00% of their portfolio CHICAGO, IL 1313 $346 $346 0.00% Unchanged
98 OSAIC HOLDINGS, INC. 0.00% of their portfolio SCOTTSDALE, AZ 1010 $265 $265 0.00% Added +2 +2
99 Ancora Advisors LLC 0.00% of their portfolio Cleveland, OH 99 $239 $239 0.00% Unchanged
100 True Wealth Design, LLC 0.00% of their portfolio AKRON, OH 99 $240 $240 0.00% Added +1 +1