Seaport Entertainment Group Inc.: which funds bought and sold

Institutions that bought and sold Seaport Entertainment Group shares in Q2 2026, from the holdings they reported to the SEC on Form 13F for March 31, 2026 and June 30, 2026.

Between March 31, 2026 and June 30, 2026, 51 institutions that filed 13F reports for both quarters added to or opened positions in Seaport Entertainment Group, and 35 cut or closed them. Together they added a net 413K shares, +7.3% on what they held at the start of the quarter. Active managers and hedge funds on our list were net sellers of 49K shares (−6.0%); index fund managers were net buyers of 445K shares (+31.5%). 13 opened a new position and 11 sold out entirely.

Bought, Q2 2026 51 institutions, 13 of them new holders Sold, Q2 2026 35 institutions, 11 of them sold out

Net change, all compared +413K shares (+7.3%)

Net change, active managers −49K shares (−6.0%), 6 bought, 3 sold

Buyers versus sellers

institutions compared, 125

51 bought 39 35 sold

Active managers and hedge funds 6 bought · 3 sold · −49K

Index fund managers 9 bought · 0 sold · +445K

Other institutions 36 bought · 32 sold · +16K

Biggest buyers

by change in shares held

Biggest buyers
Institution	Change in shares	Shares June 30, 2026	Value
Vanguard Portfolio Management LLC Index funds	+341K +792.2%	384K	$10.2M
Blackrock, Inc. Index funds	+47K +9.4%	553K	$14.7M
Gate City Capital Management, LLC	+34K +4.9%	723K	$19.2M
AQR Capital Management LLC Hedge fund	+28K +120.1%	51K	$1.4M
Kahn Brothers Group Inc	+24K +2.7%	917K	$24.4M
Geode Capital Management, LLC Index funds	+23K +12.5%	208K	$5.5M
Peapod Lane Capital LLC	+17K +18.8%	110K	$2.9M
Trexquant Investment LP Hedge fund	+17K +94.5%	34K	$908,949
Vanguard Capital Management LLC Index funds	+16K +4.8%	344K	$9.1M
Marquette Asset Management, LLC	+15K New position	15K	$392,324
Goldman Sachs Group Inc	+13K +12.6%	117K	$3.1M
Morgan Stanley	+11K +74.0%	27K	$718,925
Gabelli Funds LLC Active manager	+9,182 New position	9,182	$244,241
Invesco Ltd.	+9,133 New position	9,133	$242,938
Bank Of America Corp	+8,933 New position	8,933	$237,618
Empirical Asset Management, LLC	+8,600 New position	8,600	$228,760
Quinn Opportunity Partners LLC	+8,016 New position	8,016	$213,226
State Street Corp Index funds	+7,857 +4.4%	186K	$4.9M
Independent Investors Inc	+7,584 New position	7,584	$201,734
Price T Rowe Associates Inc Active manager	+6,012 +23.4%	32K	$843,000

Biggest buyers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
AQR Capital Management LLC Hedge fund	+28K +120.1%	51K	$1.4M
Trexquant Investment LP Hedge fund	+17K +94.5%	34K	$908,949
Gabelli Funds LLC Active manager	+9,182 New position	9,182	$244,241
Price T Rowe Associates Inc Active manager	+6,012 +23.4%	32K	$843,000
American Century Companies Inc Active manager	+4,536 +42.6%	15K	$403,788
FMR LLC Active manager	+11 +1.2%	933	$24,824

Biggest sellers

by change in shares held

Biggest sellers
Institution	Change in shares	Shares June 30, 2026	Value
Dimensional Fund Advisors LP	−59K −12.9%	397K	$10.5M
Renaissance Technologies LLC Hedge fund	−54K −66.0%	28K	$744,773
Lazard Asset Management LLC Active manager	−33K −69.2%	15K	$388,998
Marnell Management LLC	−32K Sold out	0	—
Citadel Advisors LLC Hedge fund	−26K Sold out	0	—
Arrowmark Colorado Holdings LLC	−18K Sold out	0	—
Solas Capital Management, LLC	−10K −4.5%	213K	$5.7M
Horizon Kinetics Asset Management LLC	−9,937 −18.9%	43K	$1.1M
Odyssean, LLC	−9,723 Sold out	0	—
Byrne Asset Management LLC	−6,320 Sold out	0	—
Aquatic Capital Management LLC	−5,216 Sold out	0	—
Cerity Partners LLC	−3,964 −1.2%	315K	$8.4M
UBS Group AG	−2,381 −9.7%	22K	$587,301
Jpmorgan Chase & Co	−2,203 −41.1%	3,151	$85,581
Gem Investment Advisors, LLC	−1,726 −5.8%	28K	$745,119
Tidal Investments LLC	−1,604 −10.1%	14K	$378,970
LPL Financial LLC	−1,055 −2.0%	52K	$1.4M
Tower Research Capital LLC (TRC)	−856 −64.7%	468	$12,449
Quent Capital, LLC	−580 −86.3%	92	$2,447
NISA Investment Advisors, LLC	−491 −40.9%	709	$18,859

Biggest sellers, active managers and hedge funds
Institution	Change in shares	Shares June 30, 2026	Value
Renaissance Technologies LLC Hedge fund	−54K −66.0%	28K	$744,773
Lazard Asset Management LLC Active manager	−33K −69.2%	15K	$388,998
Citadel Advisors LLC Hedge fund	−26K Sold out	0	—

New positions

largest by value

Institution	Shares	Value June 30, 2026
Marquette Asset Management, LLC	15K	$392,324
Gabelli Funds LLCActive manager	9,182	$244,241
Invesco Ltd.	9,133	$242,938
Bank Of America Corp	8,933	$237,618
Empirical Asset Management, LLC	8,600	$228,760
Quinn Opportunity Partners LLC	8,016	$213,226
Independent Investors Inc	7,584	$201,734
Arax Advisory Partners	1,472	$39,155
Integrated Wealth Concepts LLC	353	$9,388
Clearstead Advisors, LLC	5	$134

Sold out

largest by value

Institution	Shares	Value March 31, 2026
Marnell Management LLC	32K	$693,804
Citadel Advisors LLCHedge fund	26K	$554,184
Arrowmark Colorado Holdings LLC	18K	$395,361
Odyssean, LLC	9,723	$208,850
Byrne Asset Management LLC	6,320	$135,754
Aquatic Capital Management LLC	5,216	$112,040
Bayban	20	$430
Greykasell Wealth Strategies, Inc.	18	$376
Root Financial Partners, LLC	9	$193
Mai Capital Management	7	$151

Who holds the shares

13F holdings at June 30, 2026

Institutions reporting: 116
Ten largest holders: 84.8%
Index fund managers: 16.7%
Active managers and hedge funds: 52.1%

Buying and selling by type of institution, March 31, 2026 to June 30, 2026
Type	Bought	Sold	New	Sold out	Net change in shares	Net %
Active managers and hedge funds	6	3	1	1	−49K	−6.0%
Index fund managers	9	0	0	0	+445K	+31.5%
Other institutions	36	32	12	10	+16K	+0.5%

Active managers and hedge funds: a list we maintain of about 400 well-known stock-picking firms and hedge funds, matched by SEC registration number (CIK) and checked against the filer names each quarter. Index fund managers: the large index houses, such as BlackRock, Vanguard, State Street, Geode and Northern Trust. Every other filer (banks, brokers, wealth managers, pension funds, insurers and firms not on the list) counts as another institution. A firm that files under several SEC registrations appears once for each.

What these filings can and cannot tell you

Form 13F lists the long positions in US-listed shares held by investment managers with more than $100 million in such holdings. Managers file it up to 45 days after each quarter ends, so this page shows what funds held at the end of each quarter, not what they are doing now: a position may have changed since. Short positions, most derivatives and smaller managers are not included, and a cut can mean a fund lost clients or rebalanced rather than a view on Seaport Entertainment Group.

Only managers that filed a holdings report for both quarters are compared (125 here). 6 other holders are left out: first-time or late filers, firms that changed their SEC registration, and filings that withheld positions under confidential treatment, any of which would otherwise look like a new position or a sale. Figures are as reported by each manager in the SEC's quarterly 13F data sets; option positions are excluded.

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