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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
PH icon
251
Parker-Hannifin
PH
$127B
$3.04M 0.03%
+3,524
New +$3.34M
SSACU
252
SPACSphere Acquisition Corp Unit
SSACU
$3.02M 0.03%
+300,000
New +$3.02M
SF
253
Stifel
SF
$12.2B
$3.01M 0.03%
40,766
+14,981
+58% +$1.19M
MKLY
254
McKinley Acquisition Corp
MKLY
$250M
$3.01M 0.03%
300,000
– –
SCII
255
SC II Acquisition Corp
SCII
$252M
$3M 0.03%
+300,000
New +$2.99M
TTC icon
256
Toro Company
TTC
$9.47B
$2.96M 0.03%
31,641
-3,045
-9% -$287K
FIS icon
257
Fidelity National Information Services
FIS
$20.9B
$2.93M 0.03%
62,473
+19,159
+44% +$1.03M
CCC
258
CCC Intelligent Solutions
CCC
$4.48B
$2.93M 0.03%
+487,671
New +$3.19M
AVGO icon
259
Broadcom
AVGO
$1.77T
$2.92M 0.03%
+9,956
New +$3.28M
VLOS
260
Velos Acquisition I Corp
VLOS
$252M
$2.9M 0.03%
269,016
– –
VTRS icon
261
Viatris
VTRS
$19.4B
$2.85M 0.03%
+211,247
New +$2.96M
RFAMU
262
RF Acquisition Corp III Units
RFAMU
$2.82M 0.03%
+285,000
New +$2.83M
KEYS icon
263
Keysight
KEYS
$55.5B
$2.76M 0.03%
10,253
+3,839
+60% +$962K
UDMY
264
DELISTED
Udemy
UDMY
$2.76M 0.03%
596,969
+2,716
+0.5% +$13.4K
B
265
Barrick Mining
B
$77.9B
$2.76M 0.03%
67,564
-32,177
-32% -$1.49M
VEEV icon
266
Veeva Systems
VEEV
$45.8B
$2.75M 0.03%
15,674
+13,704
+696% +$2.69M
RGA icon
267
Reinsurance Group of America
RGA
$16.1B
$2.74M 0.03%
13,408
+11,889
+783% +$2.46M
BNS icon
268
Scotiabank
BNS
$113B
$2.73M 0.03%
39,460
+32,443
+462% +$2.38M
AXSM icon
269
Axsome Therapeutics
AXSM
$10.8B
$2.71M 0.03%
+16,009
New +$2.77M
A icon
270
Agilent Technologies
A
$44.5B
$2.7M 0.03%
24,144
-17,203
-42% -$2.18M
AAPL icon
271
Apple
AAPL
$4.59T
$2.64M 0.03%
+10,704
New +$2.79M
IPEX
272
Inflection Point Acquisition Corp V
IPEX
$127M
$2.6M 0.03%
250,000
– –
TD icon
273
Toronto Dominion Bank
TD
$198B
$2.55M 0.03%
27,327
-18,382
-40% -$1.75M
FRO icon
274
Frontline
FRO
$9.74B
$2.51M 0.03%
72,020
-130,997
-65% -$4M
AWI icon
275
Armstrong World Industries
AWI
$7.42B
$2.5M 0.03%
+15,200
New +$2.78M
9 10
11
12 13

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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.