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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
PGC icon
1326
Peapack-Gladstone Financial
PGC
$801M
– –
-11,742
Closed -$327K
PHR icon
1327
Phreesia
PHR
$733M
– –
-16,366
Closed -$277K
PII icon
1328
Polaris
PII
$3.63B
– –
-56,150
Closed -$3.55M
PJT icon
1329
PJT Partners
PJT
$4.57B
– –
-1,744
Closed -$292K
PLAB icon
1330
Photronics
PLAB
$1.78B
– –
-9,048
Closed -$290K
PLAY icon
1331
Dave & Buster's
PLAY
$319M
– –
-11,413
Closed -$185K
PLD icon
1332
Prologis
PLD
$135B
– –
-25,749
Closed -$3.29M
POOL icon
1333
Pool Corp
POOL
$6.76B
– –
-7,556
Closed -$1.73M
POWL icon
1334
Powell Industries
POWL
$7.02B
– –
-2,529
Closed -$269K
PRDO icon
1335
Perdoceo Education
PRDO
$2.12B
– –
-10,848
Closed -$318K
PSA icon
1336
Public Storage
PSA
$58.1B
– –
-6,763
Closed -$1.75M
PSMT icon
1337
Pricesmart
PSMT
$5.34B
– –
-2,257
Closed -$277K
PSX icon
1338
Phillips 66
PSX
$95.7B
– –
-2,395
Closed -$309K
PTC icon
1339
PTC
PTC
$17.2B
– –
-14,481
Closed -$2.52M
PTEN icon
1340
Patterson-UTI
PTEN
$4.68B
– –
-40,469
Closed -$247K
PTON icon
1341
Peloton Interactive
PTON
$2.33B
– –
-11,630
Closed -$71.6K
QLYS icon
1342
Qualys
QLYS
$6.52B
– –
-8,509
Closed -$1.13M
R icon
1343
Ryder
R
$9.51B
– –
-2,649
Closed -$507K
RBLX icon
1344
Roblox
RBLX
$27.3B
– –
-8,324
Closed -$674K
REVG
1345
DELISTED
REV Group
REVG
– –
-1,608,032
Closed -$97.8M
REXR icon
1346
Rexford Industrial Realty
REXR
$8.28B
– –
-21,543
Closed -$834K
RHI icon
1347
Robert Half
RHI
$4.6B
– –
-17,072
Closed -$464K
RIOT icon
1348
Riot Platforms
RIOT
$7.84B
– –
-24,903
Closed -$316K
RL icon
1349
Ralph Lauren
RL
$21B
– –
-2,436
Closed -$861K
RNAM
1350
DELISTED
Avidity Biosciences
RNAM
– –
-1,158,603
Closed -$83.6M
52 53
54
55 56

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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.