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MacroGenics
MGNX

109 hedge funds and large institutions have $125M invested in MacroGenics in 2026 Q1 according to their latest regulatory filings, with 32 funds opening new positions, 29 increasing their positions, 28 reducing their positions, and 9 closing their positions.

New
Increased
Maintained
Reduced
Closed

1,264% more call options, than puts

Call options by funds: $600K | Put options by funds: $44K

256% more first-time investments, than exits

New positions opened: 32 | Existing positions closed: 9

94% more capital invested

Capital invested by funds: $64.2M → $125M (+$60.6M)

24% more funds holding

Funds holding: 88 → 109 (+21)

4.87% more ownership

Funds ownership: 63.05% → 67.92% (+4.9%)

4% more repeat investments, than reductions

Existing positions increased: 29 | Existing positions reduced: 28

Holders
109
Holders Change
+21
Holders Change %
+23.86%
% of All Funds
1.34%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
32
Increased
29
Reduced
28
Closed
9
Calls
$600K
Puts
$44K
Net Calls
+$556K
Net Calls Change
+$432K

Top Buyers

Rank Fund Capital Flow
1
RCM
RA Capital Management
Massachusetts
+$3.98M
2
Two Sigma Investments
Two Sigma Investments
New York
+$3.26M
3
Millennium Management
Millennium Management
New York
+$1.75M
4
Marshall Wace
Marshall Wace
United Kingdom
+$1.58M
5
DP
Diadema Partners
New Jersey
+$1.28M

Top Sellers

Rank Fund Capital Flow
1
JFG
Jefferies Financial Group
New York
-$2.96M
2
Jane Street
Jane Street
New York
-$1.38M
3
Jacobs Levy Equity Management
Jacobs Levy Equity Management
New Jersey
-$981K
4
AC
Armistice Capital
New York
-$665K
5
Universal-Beteiligungs- und Servicegesellschaft
Universal-Beteiligungs- und Servicegesellschaft
Germany
-$619K
Name Holding Trade Value Shares
Change 		Change in
Stake
LWCFA
101
Loring Wolcott & Coolidge Fiduciary Advisors
Massachusetts
$767 – – –
TC
102
Truvestments Capital
Florida
$462 -$1.81K -848 -84%
FMII
103
Farmers & Merchants Investments Inc
Nebraska
$231 – – –
ASN
104
Advisory Services Network
Georgia
$205 +$151 +71 New
UBS AM
105
UBS AM
Illinois
$159 +$117 +55 New
Jones Financial Companies
106
Jones Financial Companies
Missouri
$88 – – –
II
107
Inspire Investing
Idaho
$51 +$9 +4 +29%
SS
108
SBI Securities
Japan
$3 -$124 -58 -98%
JFG
109
Jefferies Financial Group
New York
– -$2.96M -1,841,172 Closed
Two Sigma Advisers
110
Two Sigma Advisers
New York
– -$1.92M -1,195,000 Closed
CIAM
111
Caitong International Asset Management
Hong Kong
– -$2.36K -1,464 Closed
TRCT
112
Tower Research Capital (TRC)
New York
– -$1.57K -978 Closed
Royal Bank of Canada
113
Royal Bank of Canada
Ontario, Canada
– -$1.68K -789 -90%
SSG
114
Summit Securities Group
New York
– -$200 -124 Closed
AAP
115
Arax Advisory Partners
Colorado
– -$89 -55 Closed
Rockefeller Capital Management
116
Rockefeller Capital Management
New York
– -$40 -25 Closed
1 2 3 4
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MGNX Hedge Fund Activity: Q1 2026 in Review

109 of the 8,126 institutional investors tracked by Wall St. Rank reported a position in MacroGenics (MGNX) for Q1 2026, worth a combined $125M — up 94% from $64.2M a quarter earlier.

Buyers outnumbered sellers: 32 funds opened new MGNX positions and 9 closed out — a net gain of 23 holders — while 29 added to existing stakes and 28 trimmed.

The largest buyer was RA Capital Management, opening a new position worth an estimated $3.98M. The largest seller was Jefferies Financial Group, exiting entirely with an estimated $2.96M sold.

  • 109 institutional investors held MacroGenics (MGNX) as of Q1 2026, up from 88 in Q4 2025.
  • Funds reported $125M of MacroGenics stock for Q1 2026, up 94% quarter-over-quarter.
  • 32 funds opened new MacroGenics positions in Q1 2026 and 9 closed out, a net change of +23 holders.
  • The largest MacroGenics buyer in Q1 2026 was RA Capital Management, an estimated $3.98M added.
  • The largest MacroGenics seller in Q1 2026 was Jefferies Financial Group, an estimated $2.96M sold.

Based on aggregated 13F filings for Q1 2026.