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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
NAVN
926
Navan Inc
NAVN
$5.9B
$155K ﹤0.01%
+11,706
New +$139K
NEWT icon
927
NewtekOne
NEWT
$417M
$155K ﹤0.01%
+14,121
New +$179K
LPBBW
928
Launch Two Acquisition Corp Warrant
LPBBW
$155K ﹤0.01%
990,000
– –
SVAQW
929
Silicon Valley Acquisition Corp Warrants
SVAQW
$8.33M
$154K ﹤0.01%
+550,000
New +$168K
WHLR
930
Wheeler Real Estate Investment Trust
WHLR
$1.15M
$152K ﹤0.01%
+12,089
New +$428K
NTWOW
931
Newbury Street II Acquisition Corp Warrant
NTWOW
$152K ﹤0.01%
725,000
– –
MEVOW
932
M Evo Global Acquisition Corp II Warrants
MEVOW
$152K ﹤0.01%
+450,000
New +$154K
SPOK icon
933
Spok Holdings
SPOK
$221M
$152K ﹤0.01%
13,904
-7,577
-35% -$96.4K
BIXIW
934
Bitcoin Infrastructure Acquisition Corp Warrant
BIXIW
$149K ﹤0.01%
+499,999
New +$154K
SLS icon
935
SELLAS Life Sciences
SLS
$2.23B
$148K ﹤0.01%
+35,032
New +$157K
VACHW
936
DELISTED
Voyager Acquisition Corp Warrants
VACHW
$148K ﹤0.01%
1,078,110
– –
IPEXR
937
Inflection Point Acquisition Corp V Rights
IPEXR
$148K ﹤0.01%
250,000
– –
ADCT icon
938
ADC Therapeutics
ADCT
$146M
$147K ﹤0.01%
39,092
– –
CRAQR
939
Cal Redwood Acquisition Corp Right
CRAQR
$146K ﹤0.01%
730,033
– –
TU icon
940
Telus
TU
$16B
$143K ﹤0.01%
+11,140
New +$151K
DAAQW
941
Digital Asset Acquisition Corp Warrant
DAAQW
$2.81M
$141K ﹤0.01%
375,000
– –
RNA
942
Atrium Therapeutics
RNA
$197M
$141K ﹤0.01%
+10,512
New +$148K
DCTH icon
943
Delcath Systems
DCTH
$422M
$139K ﹤0.01%
+14,989
New +$145K
HLX icon
944
Helix Energy Solutions
HLX
$1.46B
$138K ﹤0.01%
13,905
-48,549
-78% -$413K
KTWOR
945
K2 Capital Acquisition Corp Rights
KTWOR
$137K ﹤0.01%
+650,000
New +$139K
AXINR
946
Axiom Intelligence Acquisition Corp 1 Right
AXINR
$136K ﹤0.01%
800,000
– –
LPAAW
947
Launch One Acquisition Corp Warrant
LPAAW
$136K ﹤0.01%
972,598
– –
UAC.WS
948
United Acquisition Corp I Warrants
UAC.WS
$135K ﹤0.01%
+250,000
New +$121K
HVMCW
949
Highview Merger Corp Warrants
HVMCW
$3.68M
$135K ﹤0.01%
464,644
– –
OPFI icon
950
OppFi
OPFI
$770M
$135K ﹤0.01%
+17,460
New +$160K
36 37
38
39 40

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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.