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Boston Properties

534 hedge funds and large institutions have $8.79B invested in Boston Properties in 2026 Q1 according to their latest regulatory filings, with 73 funds opening new positions, 155 increasing their positions, 235 reducing their positions, and 142 closing their positions.

New
Increased
Maintained
Reduced
Closed

6.86% less ownership

Funds ownership: 113.51%106.65% (-6.9%)

13% less funds holding

Funds holding: 616534 (-82)

23% less call options, than puts

Call options by funds: $37.3M | Put options by funds: $48.7M

28% less capital invested

Capital invested by funds: $12.1B → $8.79B (-$3.36B)

33% less funds holding in top 10

Funds holding in top 10: 32 (-1)

34% less repeat investments, than reductions

Existing positions increased: 155 | Existing positions reduced: 235

49% less first-time investments, than exits

New positions opened: 73 | Existing positions closed: 142

Holders
534
Holders Change
-82
Holders Change %
-13.31%
% of All Funds
6.57%
Holding in Top 10
2
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-33.33%
% of All Funds
0.02%
New
73
Increased
155
Reduced
235
Closed
142
Calls
$37.3M
Puts
$48.7M
Net Calls
-$11.4M
Net Calls Change
-$50M
Name Holding Trade Value Shares
Change
Change in
Stake
BNP Paribas Asset Management
76
BNP Paribas Asset Management
France
$11.6M -$7.64M -126,956 -36%
Adage Capital Partners
77
Adage Capital Partners
Massachusetts
$11.4M -$13.2M -220,069 -50%
Asset Management One
78
Asset Management One
Japan
$11.2M -$4.52M -75,184 -26%
Universal-Beteiligungs- und Servicegesellschaft
79
Universal-Beteiligungs- und Servicegesellschaft
Germany
$11.2M -$7.79M -129,544 -38%
CBU
80
CIBC Bancorp USA
Illinois
$11.1M +$12.9M +213,917 New
Tudor Investment Corp
81
Tudor Investment Corp
Connecticut
$9.35M +$10.8M +180,174 New
California State Teachers Retirement System (CalSTRS)
82
California State Teachers Retirement System (CalSTRS)
California
$9.21M -$3.46M -57,483 -24%
Marshall Wace
83
Marshall Wace
United Kingdom
$9.21M -$14.5M -241,659 -58%
JG
84
Jain Global
New York
$9.15M +$10.6M +176,210 New
Natixis Advisors
85
Natixis Advisors
Massachusetts
$8.85M -$5.62M -93,388 -35%
ETC
86
Exchange Traded Concepts
Oklahoma
$8.84M +$10.1M +168,440 +8,856%
Jones Financial Companies
87
Jones Financial Companies
Missouri
$8.44M +$9.5M +157,965 +2,558%
Commonwealth Equity Services
88
Commonwealth Equity Services
Massachusetts
$7.98M +$1.94M +32,278 +27%
Hudson Bay Capital Management
89
Hudson Bay Capital Management
Connecticut
$7.95M +$9.21M +153,168 New
MMA
90
Mizuho Markets Americas
New York
$7.73M -$2.31M -38,400 -20%
Bank of Montreal
91
Bank of Montreal
Ontario, Canada
$7.52M -$1.07M -17,714 -11%
VIA
92
Vanguard Investments Australia
Australia
$7.48M +$8.67M +144,137 New
AMH
93
Apollo Management Holdings
New York
$7.29M -$734K -12,200 -8%
VAM
94
Vanguard Asset Management
$7.15M +$8.29M +137,786 New
JFG
95
Jefferies Financial Group
New York
$6.78M +$291K +4,833 +4%
RCA
96
Riverview Capital Advisers
Massachusetts
$6.75M -$82.1K -1,364 -1%
New York State Common Retirement Fund
97
New York State Common Retirement Fund
New York
$6.7M -$186K -3,100 -2%
WT
98
Whittier Trust
California
$6.64M -$10.5M -173,936 -58%
State Board of Administration of Florida Retirement System
99
State Board of Administration of Florida Retirement System
Florida
$6.54M -$382K -6,354 -5%
State of New Jersey Common Pension Fund D
100
State of New Jersey Common Pension Fund D
New Jersey
$6.38M

BXP Hedge Fund Activity: Q1 2026 in Review

534 of the 8,126 institutional investors tracked by Wall St. Rank reported a position in Boston Properties (BXP) for Q1 2026, worth a combined $8.79B — down 28% from $12.1B a quarter earlier.

Sellers outnumbered buyers: 142 funds closed out of BXP and 73 opened new positions — a net loss of 69 holders — while 235 trimmed existing stakes and 155 added.

The largest buyer was First Eagle Investment Management, adding an estimated $357M. The largest seller was Boston Partners, cutting an estimated $207M.

  • 534 institutional investors held Boston Properties (BXP) as of Q1 2026, down from 616 in Q4 2025.
  • Funds reported $8.79B of Boston Properties stock for Q1 2026, down 28% quarter-over-quarter.
  • 73 funds opened new Boston Properties positions in Q1 2026 and 142 closed out, a net change of -69 holders.
  • The largest Boston Properties buyer in Q1 2026 was First Eagle Investment Management, an estimated $357M added.
  • The largest Boston Properties seller in Q1 2026 was Boston Partners, an estimated $207M sold.

Based on aggregated 13F filings for Q1 2026.