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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
CRSR icon
1026
Corsair Gaming
CRSR
$1.05B
$79.4K ﹤0.01%
+14,300
New +$78.8K
ANNX icon
1027
Annexon
ANNX
$855M
$78.7K ﹤0.01%
+14,205
New +$80K
SPEGR
1028
Silver Pegasus Acquisition Corp Rights
SPEGR
$78K ﹤0.01%
300,000
– –
BLRKW
1029
Bluerock Acquisition Corp Warrants
BLRKW
$3.5M
$77.5K ﹤0.01%
+266,664
New +$83.9K
ARTCW
1030
Art Technology Acquisition Corp Warrants
ARTCW
$75.5K ﹤0.01%
+250,000
New +$88K
STLA icon
1031
Stellantis
STLA
$16.5B
$75.3K ﹤0.01%
+10,620
New +$89K
LPCVW
1032
Launchpad Cadenza Acquisition Corp I Warrant
LPCVW
$75K ﹤0.01%
+333,330
New +$108K
VACI.WS
1033
Viking Acquisition Corp I Warrants
VACI.WS
$72.5K ﹤0.01%
+233,331
New +$81.5K
RTACW
1034
Renatus Tactical Acquisition Corp I Warrant
RTACW
$7.98M
$72K ﹤0.01%
150,000
– –
PD icon
1035
PagerDuty
PD
$700M
$70.9K ﹤0.01%
+11,421
New +$98.8K
FGIIW
1036
FG Imperii Acquisition Corp Warrants
FGIIW
$2.73M
$70.2K ﹤0.01%
+400,000
New +$72.4K
LATAW
1037
Galata Acquisition Corp II Warrant
LATAW
$1.61M
$70K ﹤0.01%
+233,329
New +$83.5K
TWLVR
1038
Twelve Seas Investment Co III Rights
TWLVR
$69.6K ﹤0.01%
+400,000
New +$67.6K
CMPX icon
1039
Compass Therapeutics
CMPX
$373M
$69K ﹤0.01%
+13,045
New +$75.3K
HAVAR
1040
Harvard Ave Acquisition Corp Rights
HAVAR
$68.8K ﹤0.01%
+550,000
New +$75K
AQN icon
1041
Algonquin Power & Utilities
AQN
$4.69B
$68.5K ﹤0.01%
11,162
-32,619
-75% -$211K
YCY.WS
1042
AA Mission Acquisition Corp II Warrants
YCY.WS
$66.7K ﹤0.01%
+349,997
New +$71.6K
SCIIR
1043
SC II Acquisition Corp Rights
SCIIR
$65.3K ﹤0.01%
+300,000
New +$73.1K
FIGXW
1044
FIGX Capital Acquisition Corp Warrant
FIGXW
$2.18M
$63.8K ﹤0.01%
250,000
– –
PAYO icon
1045
Payoneer
PAYO
$2.41B
$63.6K ﹤0.01%
+13,173
New +$69.5K
DSACW
1046
Daedalus Special Acquisition Corp Warrant
DSACW
$3.85M
$63K ﹤0.01%
+150,000
New +$67.8K
TDWDR
1047
Tailwind 2.0 Acquisition Corp Rights
TDWDR
$62K ﹤0.01%
+400,000
New +$69.2K
PAII.WS
1048
Pyrophyte Acquisition Corp II Warrants
PAII.WS
$62K ﹤0.01%
187,915
– –
TVAIR
1049
Thayer Ventures Acquisition Corporation II Rights
TVAIR
$61.3K ﹤0.01%
350,000
– –
DYORW
1050
Insight Digital Partners II Warrants
DYORW
$61K ﹤0.01%
200,000
– –
40 41
42
43 44

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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.