Filer Snapshot

Magnetar Financial LLC

CIK 0001352851. SEC filing timeline plus parsed ownership intelligence from 13F, 13D/G, and Forms 3/4/5 where available.

Entity type

Company

Total filings

282

Latest filing

14 Aug 2026

Industry

n/a

Filing-backed research brief

Start with the SEC data that changes for this CIK

Latest signal: 13F-HR for Q2 2026. Each card links back to the PortfolioSavvy page where the filing evidence is closest.

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Latest 13F portfolio

$10.94B

1,134 holdings for Q2 2026

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Largest parsed holding

CRWV

$5.18B reported value

Open holding

13D/G large stake

WHLR

30 Jun 2026 · 45% ownership

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Source: SEC Schedule 13D/G

SCHEDULE 13G/A filed on 14 Aug 2026 for CIK 0001352851.

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Ownership signals CIK-linked ownership evidence from parsed SEC filings. 1 signal
Parsed SEC ownership signals

Parsed SEC ownership coverage

These bars compare filing-backed value available in each disclosure family. Read them as separate lenses, not as one combined ownership total.

13F portfolio$10.94B

Quarterly institutional holdings reported on Form 13F; not total AUM.

Forms 3/4/5 positions$202.55M

Reporting-owner positions with enough filing detail to estimate value.

Latest reported 13F value

13F
$10.94B

Reported market value from the latest parsed Form 13F information table; this is not total assets under management.

Source: SEC Form 13FScope: U.S.-listed equity holdings

Forms 3/4/5 position value

3/4/5
$202.55M

Estimated from parsed Forms 3/4/5 when filings include enough share and price data.

Source: Forms 3/4/5Confidence: Estimated when price data is available

Largest 13F holdings

13F
CRWV HPEPRC WBS KVUE GTLS
+15 moreNSC JD.COM INC D TXNM PEN TECK MCHPP GOOGM ALIBABA GROUP HLDG LTD WBD ROKU DBRG ORCLPRD FIRSTENERGY CORP TRIP COM GROUP LTD

Largest symbols in the latest parsed Form 13F information table.

Freshness: Latest parsed 13F period

Largest linked holdings

Largest issuer positions linked to this CIK across parsed 13F, 13D/G, and Forms 3/4/5 records.

CRWV AJX TLSI

Largest 13F holdings

Largest symbols in the latest parsed Form 13F information table.

CRWV HPEPRC WBS KVUE GTLS NSC JD.COM INC D
+12 moreTXNM PEN TECK MCHPP GOOGM ALIBABA GROUP HLDG LTD WBD ROKU DBRG ORCLPRD FIRSTENERGY CORP TRIP COM GROUP LTD

Largest active 13D stakes

Active large-stake positions disclosed in parsed Schedule 13D filings.

CMTL PRA RDUS ETWO FARO ACCD
+4 moreCCRN IMXI ATXS USAP

Largest active 13G stakes

Passive or institutional large-stake positions disclosed in parsed Schedule 13G filings.

CRWV CCXI CXII CCXIU GCGR EVACU
+14 moreCCIRU MBAV VACH TACH VACHU CAII GSRTU CCIX LPBBU KEYYU RACU ALDF RREV MLAA
How to read these SEC ownership signals
  • Read each filing family separately: Form 13F, Schedules 13D/G, and Forms 3/4/5 answer different SEC disclosure questions and should not be blended into one ownership total.
  • Use 13F values for visible U.S.-listed equity portfolios, 13D/G rows for large beneficial-owner stakes, and Forms 3/4/5 rows for reporting-owner positions and transactions.
  • Open the linked research path when you need the filing, CIK, issuer, CUSIP, date, or source trail behind a value.
At a glance Names, identifiers, and filing context for this profile. 1 identity field
Business address
1603 Orrington Ave., 13 Th Floor, Evanston, IL, 60201
EDGAR profile Static EDGAR fields kept behind disclosure so the main profile stays readable. 2 profile fields available
Incorporated in
DE
Fiscal year end
31 December

Filer intelligence

What SEC filings say about Magnetar Financial LLC

A compact read of parsed XML filings. 13F, 13D/G, and Forms 3/4/5 are shown separately because they answer different ownership questions.

Open 13F portfolio Save filer

Quick read

  • Latest parsed 13F shows $10.94B across 1,134 reported holdings for Q2 2026.
  • Largest parsed 13F holding: CRWV at $5.18B.
  • 5 recent 13D/G stake rows found; top row is WHLR at 45% ownership.
  • Forms 3/4/5 show insider context for CRWV worth $160.63M.

SEC source mix

Counts show available parsed rows, not one combined ownership total.

XML parsed
13F portfolio 1,134 rows

Quarterly institutional portfolio holdings.

Open
13D/G stakes 5 rows

Beneficial ownership and large-stake disclosures.

Open
Forms 3/4/5 5 rows

Officer, director, and 10% owner holdings or transactions.

Open

Top parsed 13F holdings

Visual share of the latest parsed 13F portfolio. Values are reported market value, not a recommendation.

Q2 2026 - 14 Aug 2026

Top 5 concentration

51%

Share of latest parsed 13F value represented by the visible holdings below.

Top 5 reported value

$5.53B

Compared with $10.94B total 13F value.

Top 5 net change

-$1.66B

Position-value change inside the visible top holdings only.

13F concentration map

A simple visual split of the latest parsed 13F portfolio.

Largest add: D · Largest trim: CRWV

CRWV HPEPRC WBS KVUE GTLS Other holdings

CRWV

47.3%

Coreweave Inc

$5.18B

HPEPRC

0.8%

Hewlett Packard Enterprise C

$88.98M

WBS

0.8%

Webster Finl Corp

$88.39M

KVUE

0.8%

Kenvue Inc

$88.2M

GTLS

0.8%

Chart Inds Inc

$87.4M

13D/G large-stake context

WHLR

30 Jun 2026 · Common Stock, $0.01 par value per share

45%
Issuer page 13D/G history

CAII

30 Jun 2026 · Class A ordinary shares, par value $0.0001

9.8%
Issuer page 13D/G history

INTERPRIVATE INVESTMENT PARTNERS V INC

30 Jun 2026 · Class A ordinary shares, par value $0.0001

9.3%
Issuer page 13D/G history

TRIBECA STRATEGIC ACQUISITION CORP

30 Jun 2026 · Class A ordinary shares, par value $0.0001

8.9%
Issuer page 13D/G history

Forms 3/4/5 insider context

CRWV

14 Aug 2026 · 10% owner

$160.63M
Issuer page Owner page

AJX

31 Aug 2022 · 10% owner

$41.75M
Issuer page Owner page

TLSI

12 Jun 2023 · 10% owner

$174.8K
Issuer page Owner page

WHLR

15 Apr 2026 · 10% owner

$0
Issuer page Owner page

Latest update

What changed recently for Magnetar Financial LLC

Ownership report updated

Latest ownership report period: 14 Aug 2026. Open the source-backed page to inspect the fresh filing or facts context.

Update date

18 Aug 2026

Page type

Ownership filings

Latest period

14 Aug 2026

Ownership context was refreshed from SEC Forms 3/4/5 filed on 18 Aug 2026.

Open ownership filings Browse recent public updates

Benchmark Context

Benchmark context for this company

Magnetar Financial LLC has a source-backed company facts view where you can compare the latest reported metrics with its own recent history and with peer rankings for the same metric.

Compared with

Start on the facts page for period-to-period context, then open a metric ranking when you want to compare the same reported fact across other SEC-reporting companies.

Why this is notable

Latest ownership report period: 14 Aug 2026. That gives you a fresh baseline before you compare this company with peers.

  • Peer comparisons stay conservative: same metric, compatible units, latest valid company row only.
  • Open the facts page first if you want the cleanest path to verification.

Benchmark context is only shown where the app has enough comparable SEC-backed data to keep the interpretation honest.

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SEC filing record

CIK 0001352851 filing coverage

Start with this filing record, then use the linked ownership pages when parsed 13F, 13D/G, Forms 3/4/5, or facts data exists for this CIK.

SEC filings
282
First seen
14 Feb 2014
Latest filing
14 Aug 2026
Entity
Company

Observed form types

13F-HR 13F-HR/A 3 4 SCHEDULE 13D SCHEDULE 13D/A SCHEDULE 13G SCHEDULE 13G/A

CIK-linked evidence first

Magnetar Financial LLC SEC filings Magnetar Financial LLC 13F portfolio Magnetar Financial LLC 13D/G history Magnetar Financial LLC owner filings Open SEC filing index

Latest Filings

Showing the latest 12 of 282 SEC filings for Magnetar Financial LLC.

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SCHEDULE 13G/A

SCHEDULE 13G/A filing

Filing date
14 Aug 2026
Reporting date
Not listed
SEC evidence
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4

4 filing

Filing date
14 Aug 2026
Reporting date
14 Aug 2026
SEC evidence
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4

4 filing

Filing date
14 Aug 2026
Reporting date
14 Aug 2026
SEC evidence
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4

4 filing

Filing date
14 Aug 2026
Reporting date
13 Aug 2026
SEC evidence
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4

4 filing

Filing date
14 Aug 2026
Reporting date
13 Aug 2026
SEC evidence
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4

4 filing

Filing date
14 Aug 2026
Reporting date
13 Aug 2026
SEC evidence
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4

4 filing

Filing date
14 Aug 2026
Reporting date
13 Aug 2026
SEC evidence
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4

4 filing

Filing date
14 Aug 2026
Reporting date
12 Aug 2026
SEC evidence
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4

4 filing

Filing date
14 Aug 2026
Reporting date
12 Aug 2026
SEC evidence
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13F-HR

13F-HR filing

Filing date
14 Aug 2026
Reporting date
30 Jun 2026
SEC evidence
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SCHEDULE 13G

SCHEDULE 13G filing

Filing date
13 Aug 2026
Reporting date
Not listed
SEC evidence
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SCHEDULE 13G

SCHEDULE 13G filing

Filing date
13 Aug 2026
Reporting date
Not listed
SEC evidence
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