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MF

Magnetar Financial Portfolio holdings

AUM $9.84B
1-Year Est. Return 190.64%
This Fund
S&P 500
This Quarter Est. Return
+7.2%
1 Year Est. Return
+190.64%
3 Year Est. Return
+293.18%
5 Year Est. Return
+491.79%
10 Year Est. Return
+5,174.28%
AUM
$9.84B
AUM Growth
-$362M
Cap. Flow
-$305M
Cap. Flow %
-3.09%
Top 10 Hldgs %
55.7%
Holding
1,493
New
604
Increased
145
Reduced
173
Closed
363

Top Buys

Rank Stock Value
1
PEN icon
Penumbra
PEN
+$85.1M
2
WBS icon
Webster Financial
WBS
+$77.3M
3
AAUC
Allied Gold Corp
AAUC
+$76.1M
4
MASI
Masimo
MASI
+$66.2M
5
MCHPP
Microchip Technology Inc 7.50% Series A Preferred Stock
MCHPP
+$65.3M

Top Sells

Rank Stock Value
1
CMA
Comerica
CMA
+$99.1M
2
REVG
REV Group
REVG
+$97.8M
3
FYBR
Frontier Communications
FYBR
+$89.2M
4
CYBR
CyberArk
CYBR
+$89M
5
TGNA
TEGNA Inc
TGNA
+$84.5M

Sector Composition

Rank Sector Weight
1 Technology 53.03%
2 Financials 19.67%
3 Industrials 4.76%
4 Healthcare 4.19%
5 Materials 2.11%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
ALUB.U
1101
Alussa Energy Acquisition Corp II Units
ALUB.U
$81 ﹤0.01%
8
-1,249,992
-100% -$12.7M
MESHU
1102
Meshflow Acquisition Corp Units
MESHU
$80 ﹤0.01%
8
-1,249,992
-100% -$12.5M
BLRKU
1103
Bluerock Acquisition Corp Unit
BLRKU
$153M
$80 ﹤0.01%
8
-799,992
-100% -$8.01M
BBCQU
1104
Bleichroeder Acquisition Corp II Units
BBCQU
$270M
$72 ﹤0.01%
+7
New +$71
EVAC.U
1105
EQV Ventures Acquisition Corp II Units
EVAC.U
$71 ﹤0.01%
+7
New +$71
VACI.U
1106
Viking Acquisition Corp I Units
VACI.U
$70 ﹤0.01%
7
-699,993
-100% -$7.07M
BIII.U
1107
Black Spade Acquisition III Co Units
BIII.U
$70 ﹤0.01%
+7
New +$70
SORNU
1108
Soren Acquisition Corp Unit
SORNU
$315M
$70 ﹤0.01%
+7
New +$70
GRAF.U
1109
Graf Global Corp Units
GRAF.U
$68 ﹤0.01%
+5
New +$57
YCY.U
1110
AA Mission Acquisition Corp II Units
YCY.U
$62 ﹤0.01%
6
-699,994
-100% -$7.06M
PAII.U
1111
Pyrophyte Acquisition Corp II Units
PAII.U
$52 ﹤0.01%
+5
New +$52
HVMCU
1112
Highview Merger Corp Units
HVMCU
$52 ﹤0.01%
+5
New +$51
MBVIU
1113
M3-Brigade Acquisition VI Corp Units
MBVIU
$308M
$51 ﹤0.01%
5
-1,099,995
-100% -$11.2M
LEGO.U
1114
Legato Merger Corp IV Units
LEGO.U
$50 ﹤0.01%
+5
New +$50
SIMAU
1115
SIM Acquisition Corp I Unit
SIMAU
$48 ﹤0.01%
+4
New +$43
LPAAU
1116
Launch One Acquisition Corp Unit
LPAAU
$230M
$43 ﹤0.01%
+4
New +$43
ALDFU
1117
Aldel Financial II Inc Units
ALDFU
$43 ﹤0.01%
+4
New +$43
CUBWU
1118
Lionheart Holdings Unit
CUBWU
$41 ﹤0.01%
+3
New +$33
SCPQU
1119
Social Commerce Partners Corp Unit
SCPQU
$40 ﹤0.01%
4
-817,948
-100% -$8.19M
MUZEU
1120
Muzero Acquisition Corp Unit
MUZEU
$188M
$40 ﹤0.01%
+4
New +$40
FACTU
1121
FACT II Acquisition Corp Unit
FACTU
$197M
$21 ﹤0.01%
+2
New +$21
BIXIU
1122
Bitcoin Infrastructure Acquisition Corp Unit
BIXIU
$20 ﹤0.01%
2
-999,998
-100% -$10M
AA icon
1123
Alcoa
AA
$11.7B
– –
-39,158
Closed -$2.08M
ABCB icon
1124
Ameris Bancorp
ABCB
$5.89B
– –
-3,077
Closed -$229K
ABCL icon
1125
AbCellera Biologics
ABCL
$1.62B
– –
-14,264
Closed -$48.8K
43 44
45
46 47

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HI
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MPI
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URS
Utah Retirement Systems Salt Lake City, Utah $9.78B AUM 28.72% 1-Year Est. Return
FPAS
Focus Partners Advisor Solutions Saint Louis, Missouri $9.92B AUM 21.52% 1-Year Est. Return
CCM
Cullen Capital Management New York $9.75B AUM 21.81% 1-Year Est. Return
OAM
OP Asset Management Helsinki $9.95B AUM 30.22% 1-Year Est. Return
FCM
Frontier Capital Management Boston, Massachusetts $9.73B AUM 55.65% 1-Year Est. Return
HL
Harding Loevner Bridgewater, New Jersey $9.72B AUM 22.38% 1-Year Est. Return

Magnetar Financial's Q1 2026 Portfolio in Review

As of Q1 2026, Magnetar Financial held 1,493 positions worth $9.84B, down 3.5% from $10.2B the previous quarter. Its ten largest holdings account for 56% of the portfolio.

Magnetar Financial withdrew a net $305M in Q1 2026, closing 363 positions and reducing 173 holdings. Its most notable exit was Comerica, an estimated $99.1M position sold in full.

By sector, the portfolio is most concentrated in Technology at 53% of assets, down from 54% a quarter earlier, followed by Financials and Industrials.

Against the trend, Magnetar Financial opened a new position in Penumbra worth $82.6M.

  • Magnetar Financial's largest Q1 2026 buy was Penumbra: 251,433 shares worth $82.6M.
  • Magnetar Financial added most to Webster Financial in Q1 2026, an estimated $77.3M increase.
  • Magnetar Financial's biggest Q1 2026 reduction was Shift4 Payments Inc 6.00% Series A Preferred Stock, cutting an estimated $37.3M.
  • Magnetar Financial fully exited Comerica in Q1 2026, selling an estimated $99.1M.
  • Magnetar Financial's ten largest holdings make up 56% of its $9.84B portfolio in Q1 2026.
  • Magnetar Financial opened 604 new positions and closed 363 in Q1 2026.
  • Magnetar Financial's portfolio value fell 3.5% quarter-over-quarter to $9.84B.

Based on Magnetar Financial's 13F filing for Q1 2026, filed 13 May 2026.