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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
BULL
1451
Webull Corp
BULL
$3.98B
– –
-113,485
Closed -$882K
TPC
1452
Tutor Perini Cor
TPC
$4.57B
– –
-18,823
Closed -$1.26M
AHL
1453
DELISTED
Aspen Insurance
AHL
– –
-1,218,999
Closed -$45.2M
GLXY
1454
Galaxy Digital Inc
GLXY
$4.34B
– –
-16,000
Closed -$358K
CHACR
1455
DELISTED
Crane Harbor Acquistion Corp Rights
CHACR
– –
-900,000
Closed -$720K
CHAC
1456
DELISTED
Crane Harbor Acquisition Corp
CHAC
– –
-900,000
Closed -$9.69M
PELIR
1457
DELISTED
Pelican Acquisition Corp Right
PELIR
– –
-194,996
Closed -$44.8K
PELI
1458
DELISTED
Pelican Acquisition Corp
PELI
– –
-194,996
Closed -$1.98M
CAI
1459
Caris Life Sciences
CAI
$4.39B
– –
-17,493
Closed -$472K
CCCX
1460
DELISTED
Churchill Capital Corp X
CCCX
– –
-712,262
Closed -$11.1M
CCCXW
1461
DELISTED
Churchill Capital Corp X Warrants
CCCXW
– –
-500,000
Closed -$3.85M
OTGAU
1462
OTG Acquisition Corp I Unit
OTGAU
$214M
– –
-650,000
Closed -$6.62M
FCRS.U
1463
FutureCrest Acquisition Corp Units
FCRS.U
– –
-700,000
Closed -$7.17M
RNGTU
1464
Range Capital Acquisition Corp II Units
RNGTU
– –
-1,400,000
Closed -$14.3M
GIWWU
1465
GigCapital8 Corp Units
GIWWU
– –
-695,261
Closed -$7.12M
HAVAU
1466
Harvard Ave Acquisition Corporation Unit
HAVAU
– –
-550,000
Closed -$5.51M
LAFAU
1467
LaFayette Acquisition Corp Unit
LAFAU
– –
-425,000
Closed -$4.26M
TDWDU
1468
Tailwind 2.0 Acquisition Corp Unit
TDWDU
– –
-400,000
Closed -$3.93M
EVOXU
1469
Evolution Global Acquisition Corp Units
EVOXU
$179M
– –
-700,000
Closed -$7.04M
HCACU
1470
Hall Chadwick Acquisition Corp Unit
HCACU
– –
-500,000
Closed -$5.01M
IGACU
1471
Invest Green Acquisition Corp Units
IGACU
– –
-1,000,000
Closed -$10M
SCIIU
1472
SC II Acquisition Corp Units
SCIIU
– –
-300,000
Closed -$3.02M
AEAQU
1473
Activate Energy Acquisition Corp Unit
AEAQU
– –
-800,000
Closed -$8M
SAC.U
1474
Safeguard Acquisition Corp Units
SAC.U
– –
-500,000
Closed -$5.04M
LFACU
1475
Leapfrog Acquisition Corp Units
LFACU
– –
-700,000
Closed -$7M
56 57 58
59
60

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HI
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MPI
Mairs & Power Inc St Paul, Minnesota $9.79B AUM 20.6% 1-Year Est. Return
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.