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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
ST icon
1376
Sensata Technologies
ST
$6.18B
– –
-108,536
Closed -$3.61M
STAG icon
1377
STAG Industrial
STAG
$7.15B
– –
-6,209
Closed -$228K
STE icon
1378
Steris
STE
$22.7B
– –
-15,155
Closed -$3.84M
SU icon
1379
Suncor Energy
SU
$77.7B
– –
-18,400
Closed -$817K
SUI icon
1380
Sun Communities
SUI
$15B
– –
-28,906
Closed -$3.58M
SYM icon
1381
Symbotic
SYM
$5.34B
– –
-11,466
Closed -$682K
TDS icon
1382
Telephone and Data Systems
TDS
$3.82B
– –
-12,555
Closed -$515K
TDW icon
1383
Tidewater
TDW
$4.63B
– –
-5,356
Closed -$271K
TDY icon
1384
Teledyne Technologies
TDY
$29B
– –
-594
Closed -$303K
TEX icon
1385
Terex
TEX
$7.38B
– –
-15,862
Closed -$847K
TGNA
1386
DELISTED
TEGNA Inc
TGNA
– –
-4,355,886
Closed -$84.5M
THC icon
1387
Tenet Healthcare
THC
$21.6B
– –
-1,055
Closed -$210K
THRY icon
1388
Thryv Holdings
THRY
$84.4M
– –
-65,671
Closed -$397K
TIPT icon
1389
Tiptree Inc
TIPT
$681M
– –
-19,530
Closed -$357K
TOST icon
1390
Toast
TOST
$20.3B
– –
-50,985
Closed -$1.81M
TRDA icon
1391
Entrada Therapeutics
TRDA
$283M
– –
-13,373
Closed -$137K
TRMB icon
1392
Trimble
TRMB
$14.3B
– –
-2,935
Closed -$230K
TRNO icon
1393
Terreno Realty
TRNO
$7.31B
– –
-4,031
Closed -$237K
TRV icon
1394
Travelers Companies
TRV
$77B
– –
-5,497
Closed -$1.59M
TSCO icon
1395
Tractor Supply
TSCO
$18.1B
– –
-13,014
Closed -$651K
TSLA icon
1396
Tesla
TSLA
$1.4T
– –
-7,738
Closed -$3.48M
TTD icon
1397
Trade Desk
TTD
$6.31B
– –
-111,424
Closed -$4.23M
TTEK icon
1398
Tetra Tech
TTEK
$9.38B
– –
-30,856
Closed -$1.03M
TXN icon
1399
Texas Instruments
TXN
$243B
– –
-17,485
Closed -$3.03M
TXT icon
1400
Textron
TXT
$14.2B
– –
-5,314
Closed -$463K
54 55
56
57 58

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BEI
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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.