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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
TYL icon
1401
Tyler Technologies
TYL
$15.1B
– –
-1,122
Closed -$509K
UAA icon
1402
Under Armour
UAA
$2.18B
– –
-24,610
Closed -$122K
UBS icon
1403
UBS Group
UBS
$166B
– –
-8,330
Closed -$386K
UGI icon
1404
UGI
UGI
$8.2B
– –
-61,166
Closed -$2.29M
UHAL.B icon
1405
U-Haul Holding Co Series N
UHAL.B
$11.7B
– –
-16,186
Closed -$757K
USFD icon
1406
US Foods
USFD
$23.3B
– –
-4,585
Closed -$345K
VET icon
1407
Vermilion Energy
VET
$1.94B
– –
-29,456
Closed -$246K
VIAV icon
1408
Viavi Solutions
VIAV
$9.49B
– –
-13,178
Closed -$235K
VKTX icon
1409
Viking Therapeutics
VKTX
$3.95B
– –
-15,647
Closed -$550K
VLO icon
1410
Valero Energy
VLO
$99.8B
– –
-27,818
Closed -$4.53M
VLTO icon
1411
Veralto
VLTO
$24B
– –
-20,545
Closed -$2.05M
VMC icon
1412
Vulcan Materials
VMC
$35.5B
– –
-917
Closed -$262K
VNO icon
1413
Vornado Realty Trust
VNO
$7.23B
– –
-8,097
Closed -$269K
VRRM icon
1414
Verra Mobility
VRRM
$670M
– –
-78,624
Closed -$1.76M
VRT icon
1415
Vertiv
VRT
$104B
– –
-2,357
Closed -$382K
VRTS icon
1416
Virtus Investment Partners
VRTS
$1.12B
– –
-2,418
Closed -$394K
WCC
1417
WESCO International
WCC
$17.1B
– –
-1,011
Closed -$247K
WDAY icon
1418
Workday
WDAY
$47.8B
– –
-11,843
Closed -$2.54M
WEC icon
1419
WEC Energy
WEC
$34.6B
– –
-15,269
Closed -$1.61M
WELL icon
1420
Welltower
WELL
$173B
– –
-1,691
Closed -$314K
WEX icon
1421
WEX
WEX
$6.76B
– –
-2,489
Closed -$371K
WFRD icon
1422
Weatherford International
WFRD
$6.59B
– –
-3,221
Closed -$252K
WINA icon
1423
Winmark
WINA
$1.2B
– –
-777
Closed -$315K
WMG icon
1424
Warner Music
WMG
$14.7B
– –
-15,244
Closed -$468K
WMS icon
1425
Advanced Drainage Systems
WMS
$10.5B
– –
-6,720
Closed -$973K
55 56
57
58 59

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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
Mairs & Power Inc St Paul, Minnesota $10.9B AUM 27.5% 1-Year Est. Return
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.