13F filer · CIK 1352851 ↗

Magnetar Financial LLC

You are looking at Q3 2022. See the latest, Q2 2026 →

Reported value

$7.21B

−25% on the quarter before

Positions

1,356

467 new · 772 sold out

Top 10

13.0%

of the value

Est. gain

−$731.9M

on stocks held all quarter

Est. return

−20.1%

on those stocks since Q2 2022

Filed

Nov 14, 2022

On SEC EDGAR ↗

Positions as of Sep 30, 2022, from Magnetar Financial LLC's 13F filing with the SEC. A 13F lists a manager's US-listed stocks and options at a quarter end and is filed up to 45 days later, so the fund may hold something else today. It leaves out short positions, cash and holdings outside the US.

Portfolio at a glance

New
Added
Cut
Same
Options

The 24 largest positions, 26% of the reported value, each sized by its share, colored by what the fund did with it since Q2 2022. Striped tiles are options.

Change Healthcare Inc1.6%

Churchill Capital Corp Vii1.5%

Lhc Group Inc1.5%

Boston Scientific Corp1.4%

Pnm Res Inc1.2%

Vmware Inc1.2%

Black Knight Inc1.2%

Irobot Corp1.2%

Duke Realty Corp1.2%

Signify Health Inc1.1%

Spirit Airls Inc1.1%

Shaw Communications Inc1.1%

Meridian Bioscience Inc1.0%

Yamana Gold Inc1.0%

First Horizon Corporation0.9%

1life Healthcare Inc0.9%

Merck & Co Inc0.9%

Kkr Acquisition Holding I Co0.9%

Activision Blizzard Inc0.9%

Cowen Inc0.9%

Rogers Corp0.8%

Elanco Animal Health Inc0.8%

Global Blood Therapeutics In0.8%

Biohaven Pharmactl Hldg Co L0.8%

Change Healthcare Inc1.6%

Churchill Capital Corp Vii1.5%

Lhc Group Inc1.5%

Boston Scientific Corp1.4%

Pnm Res Inc1.2%

Vmware Inc1.2%

Black Knight Inc1.2%

Irobot Corp1.2%

Duke Realty Corp1.2%

Signify Health Inc1.1%

Spirit Airls Inc1.1%

Shaw Communications Inc1.1%

Meridian Bioscience Inc1.0%

Yamana Gold Inc1.0%

First Horizon Corporation0.9%

1life Healthcare Inc0.9%

Merck & Co Inc0.9%

Kkr Acquisition Holding I Co0.9%

Activision Blizzard Inc0.9%

Cowen Inc0.9%

Rogers Corp0.8%

Elanco Animal Health Inc0.8%

Global Blood Therapeutics In0.8%

Biohaven Pharmactl Hldg Co L0.8%

Largest buys

Since Q2 2022, by estimated size: the change in shares at the quarter-end price, since a 13F gives no trade prices. Percentages are the position's share of the portfolio, before and after.

Churchill Capital Corp Vii~$103.0MAdded · 0.1% → 1.5%+10,482,975 shares
Irobot Corp~$84.0MNew · 0.0% → 1.2%+1,491,829 shares
Meridian Bioscience Inc~$70.9MNew · 0.0% → 1.0%+2,248,159 shares
1life Healthcare Inc~$67.8MNew · 0.0% → 0.9%+3,955,336 shares
Signify Health Inc~$67.2MAdded · 0.1% → 1.1%+2,305,466 shares
Cowen Inc~$63.0MNew · 0.0% → 0.9%+1,630,625 shares
Kkr Acquisition Holding I Co~$62.0MAdded · 0.0% → 0.9%+6,298,080 shares
Spirit Airls Inc~$58.5MAdded · 0.3% → 1.1%+3,106,770 shares
Global Blood Therapeutics In~$56.5MNew · 0.0% → 0.8%+829,531 shares
Chemocentryx Inc~$52.0MNew · 0.0% → 0.7%+1,007,047 shares

Largest sells

Since Q2 2022, by estimated size: the change in shares at the quarter-end price, since a 13F gives no trade prices. Percentages are the position's share of the portfolio, before and after.

Coherent Inc~$168.3MSold out · 1.7% → 0.0%−632,348 shares
Sanderson Farms Inc~$155.2MSold out · 1.6% → 0.0%−720,047 shares
Mandiant Inc~$112.2MSold out · 1.2% → 0.0%−5,140,247 shares
Welbilt Inc~$112.0MSold out · 1.2% → 0.0%−4,703,516 shares
Cmc Materials Inc~$111.1MSold out · 1.1% → 0.0%−636,858 shares
Churchill Capital Corp Vii~$103.3MSold out · 1.1% → 0.0%−10,483,005 shares
Meritor Inc~$94.7MSold out · 1.0% → 0.0%−2,606,688 shares
Change Healthcare Inc~$86.5MCut · 1.7% → 1.6%−3,146,405 shares
Gcp Applied Technologies Inc~$83.8MSold out · 0.9% → 0.0%−2,679,721 shares
Plantronics Inc New~$73.2MSold out · 0.8% → 0.0%−1,843,765 shares

Holdings

As of Sep 30, 2022. Changes are in shares against Jun 30, 2022, so a price move alone never reads as a buy or a sale.

Positions, sorted by share of the portfolio
#	Holding		% prev	Value	Shares		Price	Prev price
1	Change Healthcare IncCOM · shares −43% · price +19.2%	1.6%	1.7%	$113.1M	4.1M	−43%	$27.49	$23.06	+19.2%	+$18.2M
2	Churchill Capital Corp ViiCOM CL A · shares +1,817% · price +0.6%	1.5%	0.06%	$108.7M	11.1M	+1,817%	$9.83	$9.77	+0.6%	+$34,903
3	Lhc Group IncCOM · shares −26% · price +5.1%	1.5%	1.4%	$106.0M	647,493	−26%	$163.66	$155.74	+5.1%	+$5.1M
4	Boston Scientific CorpCOM · shares −3.9% · price +3.9%	1.4%	1.0%	$98.0M	2.5M	−3.9%	$38.73	$37.27	+3.9%	+$3.7M
5	Pnm Res IncCOM · shares −27% · price −4.3%	1.2%	1.3%	$90.0M	2.0M	−27%	$45.73	$47.78	−4.3%	−$4.0M
6	Vmware IncCL A COM · shares −35% · price −6.6%	1.2%	1.5%	$88.9M	834,750	−35%	$106.46	$113.98	−6.6%	−$6.3M
7	Black Knight IncCOM · shares −35% · price −1.0%	1.2%	1.4%	$87.6M	1.4M	−35%	$64.73	$65.39	−1.0%	−$893,431
8	Irobot CorpCOM · shares New	1.2%	—	$84.0M	1.5M	New	$56.33	—	—	—
9	Duke Realty CorpCOM NEW · shares −13% · price −12.3%	1.2%	1.1%	$83.0M	1.7M	−13%	$48.20	$54.95	−12.3%	−$11.6M
10	Signify Health IncCL A COM · shares +499% · price +111.2%	1.1%	0.07%	$80.7M	2.8M	+499%	$29.15	$13.80	+111.2%	+$7.1M
11	Spirit Airls IncCOM · shares +272% · price −21.1%	1.1%	0.28%	$80.0M	4.2M	+272%	$18.82	$23.84	−21.1%	−$5.7M
12	Shaw Communications IncCL B CONV · shares −34% · price −17.6%	1.1%	1.5%	$76.4M	3.1M	−34%	$24.29	$29.46	−17.6%	−$16.3M
13	Meridian Bioscience IncCOM · shares New	0.98%	—	$70.9M	2.2M	New	$31.53	—	—	—
14	Yamana Gold IncCOM · shares −26% · price −2.6%	0.97%	1.00%	$69.7M	15.4M	−26%	$4.53	$4.65	−2.6%	−$1.8M
15	First Horizon CorporationCOM · shares −35% · price +4.8%	0.94%	1.0%	$68.1M	3.0M	−35%	$22.90	$21.86	+4.8%	+$3.1M
16	1life Healthcare IncCOM · shares New	0.94%	—	$67.8M	4.0M	New	$17.15	—	—	—
17	Merck & Co IncCOM · shares +51% · price −5.5%	0.92%	0.48%	$66.4M	771,489	+51%	$86.12	$91.17	−5.5%	−$2.6M
18	Kkr Acquisition Holding I CoCOM CLASS A · shares +1,861% · price +0.5%	0.91%	0.03%	$65.3M	6.6M	+1,861%	$9.84	$9.79	+0.5%	+$16,933
19	Activision Blizzard IncCOM · shares −35% · price −4.5%	0.88%	1.1%	$63.2M	850,567	−35%	$74.34	$77.86	−4.5%	−$3.0M
20	Cowen IncCL A NEW · shares New	0.87%	—	$63.0M	1.6M	New	$38.64	—	—	—
21	Rogers CorpCOM · shares −39% · price −7.7%	0.82%	1.1%	$59.3M	245,313	−39%	$241.88	$262.09	−7.7%	−$5.0M
22	Elanco Animal Health IncCOM · shares +96% · price −36.8%	0.81%	0.49%	$58.6M	4.7M	+96%	$12.41	$19.63	−36.8%	−$17.4M
23	Global Blood Therapeutics InCOM · shares New	0.78%	—	$56.5M	829,531	New	$68.10	—	—	—
24	Biohaven Pharmactl Hldg Co LCOM · shares −39% · price +3.7%	0.76%	0.89%	$54.9M	363,372	−39%	$151.17	$145.71	+3.7%	+$2.0M
25	Chemocentryx IncCOM · shares New	0.72%	—	$52.0M	1.0M	New	$51.66	—	—	—
	Total · 1,356 positions	100%		$7.21B						−$731.9M

The filing on SEC EDGAR ↗

Price is a stock's reported value over its shares at the quarter end. The estimated gain is the shares held at both quarter ends times the change in that price: shares bought or sold during the quarter add nothing, options are left out, and a stock split is read into the earlier share count and price.

What made money

From Q2 2022 to Q3 2022: 863 stocks held throughout, down $731.9M (−20.1%).

Change Healthcare Inc+$18.2M+19%
Signify Health Inc+$7.1M+111%
Pg&E Corp+$5.2M+20%
Lhc Group Inc+$5.1M+5%
Boston Scientific Corp+$3.7M+4%
Duke Realty Corp−$11.6M−12%
Shaw Communications Inc−$16.3M−18%
Elanco Animal Health Inc−$17.4M−37%
Avantor Inc−$23.5M−37%
Valaris Limited−$623.0M−100%

Estimated as in the holdings table: shares held at both quarter ends times the change in price; options left out, 42 splits read into the share counts.

Reported value by quarter

The total value of each quarter's 13F at that quarter end. It moves with prices as well as with buying and selling. Pick a quarter to see what the fund held then.

$30.00B$15.00B$0

Q1 201642 quartersQ2 2026

Every quarter's filing

Each quarter's 13F filing, newest first
Quarter	Filed	Reported value	Positions	Filing
Q2 2026	Aug 14, 2026	$10.96B+11%	1,134	SEC ↗
Q1 2026	May 13, 2026	$9.84B−4%	1,130	SEC ↗
Q4 2025	Feb 17, 2026	$10.21B−38%	896	SEC ↗
Q3 2025	Nov 13, 2025	$16.50B−20%	853	SEC ↗
Q2 2025	Aug 12, 2025	$20.65B+171%	870	SEC ↗
Q1 2025	May 15, 2025	$7.61B+75%	717	SEC ↗
Q4 2024	Feb 11, 2025	$4.36B−6%	589	SEC ↗
Q3 2024	Nov 13, 2024	$4.62B−4%	507	SEC ↗
Q2 2024	Aug 14, 2024	$4.80B+7%	497	SEC ↗
Q1 2024	May 15, 2024	$4.47B+13%	363	SEC ↗
Q4 2023	Feb 13, 2024	$3.94B+1%	363	SEC ↗
Q3 2023	Nov 14, 2023	$3.92B−14%	435	SEC ↗
Q2 2023	Aug 11, 2023	$4.56B−11%	476	SEC ↗
Q1 2023	May 15, 2023	$5.13B−13%	597	SEC ↗
Q4 2022	Feb 14, 2023	$5.91B−18%	767	SEC ↗
Q3 2022	Nov 14, 2022	$7.21B−25%	1,356	SEC ↗
Q2 2022	Aug 15, 2022	$9.67B+3%	1,661	SEC ↗
Q1 2022	May 16, 2022	$9.37B−6%	1,308	SEC ↗
Q4 2021	Feb 14, 2022	$9.96B+1%	1,351	SEC ↗
Q3 2021	Jan 14, 2022 (amended)	$9.82B−7%	1,287	SEC ↗
Q2 2021	Aug 6, 2021	$10.56B+2%	1,173	SEC ↗
Q1 2021	May 14, 2021	$10.40B+47%	1,026	SEC ↗
Q4 2020	Feb 12, 2021	$7.08B+25%	693	SEC ↗
Q3 2020	Nov 16, 2020	$5.66B+67%	640	SEC ↗
Q2 2020	Aug 14, 2020	$3.39B−18%	418	SEC ↗
Q1 2020	May 15, 2020	$4.15B−13%	456	SEC ↗
Q4 2019	Feb 13, 2020	$4.79B+22%	524	SEC ↗
Q3 2019	Nov 14, 2019	$3.93B−21%	470	SEC ↗
Q2 2019	Aug 14, 2019	$5.00B+29%	435	SEC ↗
Q1 2019	May 15, 2019	$3.89B−5%	416	SEC ↗
Q4 2018	Feb 14, 2019	$4.08B−26%	273	SEC ↗
Q3 2018	Feb 14, 2019 (amended)	$5.54B−16%	490	SEC ↗
Q2 2018	Aug 14, 2018 (amended)	$6.56B+13%	485	SEC ↗
Q1 2018	May 15, 2018 (amended)	$5.80B+3%	556	SEC ↗
Q4 2017	Feb 14, 2018 (amended)	$5.62B+2%	674	SEC ↗
Q3 2017	Nov 14, 2017 (amended)	$5.52B−15%	703	SEC ↗
Q2 2017	Aug 14, 2017 (amended)	$6.52B−7%	768	SEC ↗
Q1 2017	May 15, 2017 (amended)	$7.02B+1,897%	703	SEC ↗
Q4 2016	Aug 14, 2017 (amended)	$351.5M−95%	5	SEC ↗
Q3 2016	Nov 14, 2016 (amended)	$7.03B+17%	540	SEC ↗
Q2 2016	Aug 15, 2016 (amended)	$6.02B−7%	351	SEC ↗
Q1 2016	May 16, 2016 (amended)	$6.49B	374	SEC ↗