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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
TGB
501
Trekor Metals
TGB
$3.35B
$868K 0.01%
134,512
+122,785
+1,047% +$892K
MZTI
502
The Marzetti Company
MZTI
$3.1B
$867K 0.01%
6,269
+171
+3% +$27.2K
SPOT icon
503
Spotify
SPOT
$113B
$859K 0.01%
1,771
-1,266
-42% -$635K
SBLK icon
504
Star Bulk Carriers
SBLK
$3.42B
$857K 0.01%
37,292
+17,291
+86% +$394K
FMNB icon
505
Farmers National Banc Corp
FMNB
$933M
$855K 0.01%
64,947
+38,374
+144% +$504K
YUMC icon
506
Yum China
YUMC
$15.3B
$850K 0.01%
+17,434
New +$903K
REGN icon
507
Regeneron Pharmaceuticals
REGN
$81.5B
$847K 0.01%
+1,130
New +$865K
WASH icon
508
Washington Trust Bancorp
WASH
$757M
$845K 0.01%
+25,256
New +$832K
STRA icon
509
Strategic Education
STRA
$1.88B
$843K 0.01%
+10,163
New +$828K
VICI icon
510
VICI Properties
VICI
$28.5B
$840K 0.01%
30,982
+9,551
+45% +$273K
MXL icon
511
MaxLinear
MXL
$5.65B
$830K 0.01%
+47,707
New +$857K
UTZ icon
512
Utz Brands
UTZ
$1.26B
$820K 0.01%
+103,489
New +$961K
ANET icon
513
Arista Networks
ANET
$247B
$819K 0.01%
7,049
-19,258
-73% -$2.58M
GNW icon
514
Genworth Financial
GNW
$3.77B
$815K 0.01%
+100,396
New +$852K
PGR icon
515
Progressive
PGR
$127B
$807K 0.01%
+4,006
New +$827K
BRZE icon
516
Braze
BRZE
$3.85B
$804K 0.01%
34,038
+19,281
+131% +$417K
AGI icon
517
Alamos Gold
AGI
$15.2B
$795K 0.01%
+17,886
New +$788K
JHX icon
518
James Hardie Industries
JHX
$17.4B
$785K 0.01%
+41,445
New +$932K
MORN icon
519
Morningstar
MORN
$8.18B
$781K 0.01%
+4,621
New +$858K
ASH icon
520
Ashland
ASH
$3.37B
$774K 0.01%
+13,916
New +$823K
CHPG
521
ChampionsGate Acquisition Corp
CHPG
$768K 0.01%
75,000
– –
DV icon
522
DoubleVerify
DV
$2.07B
$765K 0.01%
+80,575
New +$824K
TWLO icon
523
Twilio
TWLO
$37B
$765K 0.01%
+6,082
New +$748K
WK icon
524
Workiva
WK
$4.31B
$758K 0.01%
12,707
+8,916
+235% +$622K
WHD icon
525
Cactus
WHD
$4.79B
$756K 0.01%
15,959
+8,680
+119% +$455K
19 20
21
22 23

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BEI
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LCAM
London & Capital Asset Management London, United Kingdom $10.9B AUM 39.88% 1-Year Est. Return
IIM
INTECH Investment Management West Palm Beach, Florida $10.9B AUM 37.22% 1-Year Est. Return
RCMNY
Rubric Capital Management (New York) New York $10.9B AUM 70.31% 1-Year Est. Return
MPI
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RCMF
RK Capital Management (Florida) Weston, Florida $10.8B AUM 53.02% 1-Year Est. Return
SIM
SRS Investment Management New York $10.8B AUM 34.05% 1-Year Est. Return
ACA
Avoro Capital Advisors New York $11.1B AUM 207.82% 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'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.