Seaport Entertainment Group
SEG • XASE
Seaport Entertainment Group is a services-miscellaneous amusement & recreation company on XASE, led by Matthew Morris Partridge, with a market cap of $265.5M. As of Q3 2025, 78% of shares are held by 98 institutional investors, with Pershing Square Capital Management, L.P. as the largest holder at 39.46%.
CEOMatthew Morris Partridge
Market Cap$265.5M
SERVICES-MISCELLANEOUS AMUSEMENT & RECREATION
Overview
Overview of institutional ownership in SEG as of Q3 2025 with a market cap of $291.8M
All Institutions
- Institutions
- 98
- Value Held
- $227.1M
- Shares Held
- 9.9M
- Avg Position
- $2.3M
- Median Position
- $34.5K
Hedge Funds
- Hedge Funds
- 9
- Value Held
- $140.2M
- Shares Held
- 6.1M
- Avg Position
- $15.6M
- Median Position
- $1.9M
Ownership Breakdown
Based on market cap of $291.8M as of Q3 2025. Institutional (non-HF) excludes hedge funds to avoid double counting.
Biggest Investors
Institutions with the largest positions in SEG as of Q3 2025
| Institution | Position Value |
|---|---|
 Pershing Square Capital Management, L.P. Hedge Fund•Activist | $115.1M 0.79% of portfolio |
K KAHN BROTHERS & CO INC /DE/ RIA/Wealth | $13.4M 2.31% of portfolio |
 DIMENSIONAL FUND ADVISORS LP Long Only Manager | $13.3M 0.00% of portfolio |
R Rubric Capital Management LP Hedge Fund•Long/Short | $13.0M 0.19% of portfolio |
 BlackRock, Inc. Institution | $12.0M 0.00% of portfolio |
 VANGUARD GROUP INC Institution | $10.6M 0.00% of portfolio |
 HPM Partners LLC RIA/Wealth | $6.0M 0.01% of portfolio |
S Solas Capital Management, LLC Hedge Fund•Long/Short | $5.3M 3.25% of portfolio |
 GEODE CAPITAL MANAGEMENT LLC ETF Provider | $4.2M 0.00% of portfolio |
 STATE STREET CORP Institution | $4.1M 0.00% of portfolio |
Net Capital Flow
Institutional buying and selling activity for SEG in Q3 2025
- Traded
- +$25.4M
- Buyers
- 37
- Sellers
- 51
- Total Bought
- +$30.5M
- Total Sold
- −$5.2M
- Avg Position
- $1.9M
Biggest Buyers
| Institution | Net Bought |
|---|---|
K KAHN BROTHERS & CO INC /DE/ RIA/Wealth | +$13.4M +583.4K shares |
HPM Partners LLC RIA/Wealth | +$6.0M +259.9K shares |
S Solas Capital Management, LLC Hedge Fund•Long/Short | +$5.3M +232.2K shares |
 CenterBook Partners LP Hedge Fund•Market Neutral | +$1.9M +81.2K shares |
 GOLDMAN SACHS GROUP INC Institution | +$1.7M +72.8K shares |
 LAZARD ASSET MANAGEMENT LLC Long Only Manager | +$1.0M +44.1K shares |
STATE STREET CORP Institution | +$269.4K +11.8K shares |
J JANE STREET GROUP, LLC Institution | +$235.4K +10.3K shares |
E Empirical Finance, LLC Institution | +$227.7K +9.9K shares |
A AMERICAN CENTURY COMPANIES INC Institution | +$215.5K +9.4K shares |
Biggest Sellers
| Institution | Net Sold |
|---|---|
 CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy | −$762.7K −40.9K shares |
 HighTower Advisors, LLC RIA/Wealth | −$586.1K −31.4K shares |
R Russell Investments Group, Ltd. RIA/Wealth | −$540.9K −23.6K shares |
 MORGAN STANLEY RIA/Wealth | −$476.2K −20.8K shares |
 Marshall Wace LLP Institution | −$443.0K −23.8K shares |
 SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity | −$245.7K −13.2K shares |
 JPMORGAN CHASE & CO Institution | −$241.4K −10.5K shares |
P Phoenix Holdings Ltd. Institution | −$229.2K −10.0K shares |
 ExodusPoint Capital Management, LP Hedge Fund•Multi-Strategy | −$226.0K −12.1K shares |
 DEUTSCHE BANK AG\ Institution | −$201.2K −8.8K shares |
Entry and Exit Activity
Institutions that initiated new positions or completely exited SEG in Q3 2025
- New Positions
- 10
- New Value
- $26.7M
- Exited Positions
- 18
- Exited Value
- $2.6M
New Positions
| Institution | Position Value |
|---|---|
K KAHN BROTHERS & CO INC /DE/ RIA/Wealth | $13.4M 583.4K shares |
HPM Partners LLC RIA/Wealth | $6.0M 259.9K shares |
S Solas Capital Management, LLC Hedge Fund•Long/Short | $5.3M 232.2K shares |
CenterBook Partners LP Hedge Fund•Market Neutral | $1.9M 81.2K shares |
E Empirical Finance, LLC Institution | $227.7K 9.9K shares |
A Advisory Services Network, LLC RIA/Wealth | $390.0 17.0 shares |
B Binnacle Investments Inc Institution | $183.0 8.0 shares |
 Sunbelt Securities, Inc. RIA/Wealth | $138.0 6.0 shares |
 Sontag Advisory, LLC RIA/Wealth | $46.0 2.0 shares |
T Turning Point Benefit Group, Inc. Institution | $23.0 1.0 shares |
Exited Positions
| Institution | Previous Position |
|---|---|
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy | $762.7K 40.9K shares |
HighTower Advisors, LLC RIA/Wealth | $586.1K 31.4K shares |
Marshall Wace LLP Institution | $443.0K 23.8K shares |
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity | $245.7K 13.2K shares |
ExodusPoint Capital Management, LP Hedge Fund•Multi-Strategy | $226.0K 12.1K shares |
X XTX Topco Ltd Institution | $197.1K 10.6K shares |
C Concorde Financial Corp Institution | $92.3K 5.0K shares |
$9.3K 500.0 shares | |
L Laurel Wealth Advisors LLC RIA/Wealth | $6.3K 336.0 shares |
S SIMPLEX TRADING, LLC Institution | $3.4K 182.0 shares |
Options Activity
Institutions with the largest Call and Put options positions in SEG as of Q3 2025
- Call Positions
- 1
- Call Value
- $488.2K
- Put Positions
- 2
- Put Value
- $499.7K
Call Positions
| Institution | Position Value |
|---|---|
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity | $488.2K 213.0 contracts |
Put Positions
| Institution | Position Value |
|---|---|
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy | $291.1K 127.0 contracts |
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity | $208.6K 91.0 contracts |
Most Committed Institutions
Institutions with SEG as the highest % of their portfolio as of Q3 2025
| Institution | Portfolio Weight |
|---|---|
R Rangeley Capital, LLC Hedge Fund•Event Driven | 3.34% $3.5M |
S Solas Capital Management, LLC Hedge Fund•Long/Short | 3.25% $5.3M |
K KAHN BROTHERS & CO INC /DE/ RIA/Wealth | 2.31% $13.4M |
 Sandia Investment Management LP Hedge Fund•Event Driven | 1.04% $305.1K |
Pershing Square Capital Management, L.P. Hedge Fund•Activist | 0.79% $115.1M |
R Rubric Capital Management LP Hedge Fund•Long/Short | 0.19% $13.0M |
CenterBook Partners LP Hedge Fund•Market Neutral | 0.09% $1.9M |
 O'Keefe Stevens Advisory, Inc. RIA/Wealth | 0.08% $299.2K |
 Ancora Advisors, LLC RIA/Wealth | 0.04% $2.0M |
 INGALLS & SNYDER LLC RIA/Wealth | 0.02% $492.7K |
Hedge Fund Spotlight
Discover hedge funds investing in SEG
Quent Capital, LLC
Hedge Fund • Long/Short
Portfolio ManagerWilliam Albert Jollie
- Portfolio Value
- $1.2B
- Positions
- 1,433
- Last Reported
- Q3 2025
Sector Allocation
Position in Seaport Entertainment Group
- Market Value
- $3.6K
- Shares Held
- 155.0
- Portfolio Weight
- 0.00%
- Owned Since
- 2024-Q4
| Top Holding | Sector | Market Value | Weight |
|---|---|---|---|
ETF ETF | $129.0M | 10.81% | |
ETF ETF | $79.3M | 6.64% | |
ETF ETF | $59.0M | 4.94% |
