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MF

Magnetar Financial Portfolio holdings

AUM $11B
1-Year Est. Return 3.37%
This Fund
S&P 500
This Quarter Est. Return
+7.2%
1 Year Est. Return
-3.37%
3 Year Est. Return
+334.16%
5 Year Est. Return
+550.58%
10 Year Est. Return
+5,328.36%
AUM
$9.84B
AUM Growth
-$362M
Cap. Flow
-$294M
Cap. Flow %
-2.99%
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
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 Miscellaneous 8.46%
4 Industrials 4.76%
5 Healthcare 4.19%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
UVE icon
801
Universal Insurance Holdings
UVE
$1.21B
$255K ﹤0.01%
7,469
+380
+5% +$12.2K
IMKTA icon
802
Ingles Markets
IMKTA
$1.56B
$255K ﹤0.01%
+2,834
New +$230K
WFG icon
803
West Fraser Timber
WFG
$5.3B
$254K ﹤0.01%
+3,895
New +$263K
CMG icon
804
Chipotle Mexican Grill
CMG
$48.1B
$254K ﹤0.01%
8,156
-87,081
-91% -$3.22M
DXCM icon
805
DexCom
DXCM
$34.3B
$254K ﹤0.01%
4,099
-10,192
-71% -$710K
GRBK icon
806
Green Brick Partners
GRBK
$3.15B
$254K ﹤0.01%
+3,934
New +$277K
TNC icon
807
Tennant Co
TNC
$1.19B
$253K ﹤0.01%
+3,817
New +$277K
LULU icon
808
lululemon athletica
LULU
$13.7B
$253K ﹤0.01%
+1,733
New +$311K
SUPN icon
809
Supernus Pharmaceuticals
SUPN
$2.54B
$252K ﹤0.01%
+4,881
New +$249K
SNDX icon
810
Syndax Pharmaceuticals
SNDX
$1.74B
$252K ﹤0.01%
+10,791
New +$234K
WKC icon
811
World Kinect Corp
WKC
$1.81B
$252K ﹤0.01%
+10,926
New +$277K
SLDE
812
Slide Insurance Holdings
SLDE
$2.74B
$252K ﹤0.01%
+13,995
New +$245K
ALC icon
813
Alcon
ALC
$34.8B
$251K ﹤0.01%
3,337
+87
+3% +$6.94K
TNK icon
814
Teekay Tankers
TNK
$3.08B
$250K ﹤0.01%
3,406
-2,221
-39% -$149K
KRUS icon
815
Kura Sushi USA
KRUS
$577M
$249K ﹤0.01%
+3,569
New +$239K
DFTX
816
Definium Therapeutics
DFTX
$5.51B
$249K ﹤0.01%
+13,178
New +$224K
RYAN icon
817
Ryan Specialty Holdings
RYAN
$11.2B
$248K ﹤0.01%
+7,348
New +$314K
NPKI
818
NPK International
NPKI
$1.12B
$246K ﹤0.01%
16,993
-15,034
-47% -$209K
RUSHA icon
819
Rush Enterprises Class A
RUSHA
$8.27B
$245K ﹤0.01%
+3,707
New +$244K
HRTG icon
820
Heritage Insurance Holdings
HRTG
$1.01B
$244K ﹤0.01%
9,296
-3,867
-29% -$102K
CLMB icon
821
Climb Global Solutions
CLMB
$528M
$243K ﹤0.01%
+12,267
New +$318K
MCO icon
822
Moody's
MCO
$89.2B
$242K ﹤0.01%
+559
New +$264K
RANGR
823
Range Capital Acquisition Corp Rights
RANGR
$240K ﹤0.01%
800,000
– –
HCSG icon
824
Healthcare Services Group
HCSG
$1.54B
$240K ﹤0.01%
+12,937
New +$255K
FLG
825
Flagstar Bank National Association
FLG
$5.58B
$240K ﹤0.01%
18,221
-78,390
-81% -$1.03M
31 32
33
34 35

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LCAM
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IIM
INTECH Investment Management West Palm Beach, Florida $10.9B AUM 37.22% 1-Year Est. Return
RCMNY
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MPI
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RCMF
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SIM
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ACA
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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's Q1 2026 filing shows 604 new, 145 increased, 173 reduced and 363 closed positions. Its largest new stake was Penumbra: 251,433 shares worth $82.6M. The largest sale was Comerica, an estimated $99.1M.

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

  • 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.