REGENERON PHARMACEUTICALS

Ticker: REGN CUSIP: 75886F107 Class: COM

Magnetar Financial LLC's Holding History (CIK: 0001352851)

Note: Option positions (PUT/CALL) are excluded.

Q3 2025

Shares 1,307 Value ($000) $735 Avg Close $564.28 Range $519.56 - $609.69

Q2 2025

Shares 470 Value ($000) $247 Avg Close $556.12 Range $475.17 - $638.52

Q1 2025

Shares 11,542 Value ($000) $7,320 Avg Close $684.44 Range $615.89 - $745.12

Q4 2024

Shares 108,150 Value ($000) $77,038 Avg Close $834.60 Range $689.18 - $1055.74

Q3 2024

Shares 7,000 Value ($000) $7,359 Avg Close $1106.73 Range $1002.85 - $1204.52

Q1 2024

Shares 33,257 Value ($000) $32,010 Avg Close $945.64 Range $866.58 - $992.82

Q2 2023

Shares 68,320 Value ($000) $49,091 Avg Close $766.75 Range $681.03 - $832.93

Q3 2022

Shares 5,253 Value ($000) $3,619 Avg Close $625.92 Range $560.71 - $750.51

Q2 2022

Shares 459 Value ($000) $271 Avg Close $646.43 Range $535.04 - $743.30

Q1 2021

Shares 5,832 Value ($000) $2,759 Avg Close $484.19 Range $438.57 - $555.83

Q4 2020

Shares 3,080 Value ($000) $1,488 Avg Close $536.82 Range $468.18 - $616.55

Q3 2020

Shares 3,160 Value ($000) $1,769 Avg Close $602.99 Range $537.02 - $660.97

Q2 2019

Shares 1,227 Value ($000) $384 Avg Close $331.08 Range $293.64 - $413.60

Q1 2019

Shares 1,823 Value ($000) $749 Avg Close $409.51 Range $363.99 - $439.56

Q3 2018

Shares 810 Value ($000) $327 Avg Close $378.49 Range $340.69 - $414.19

Q4 2017

Shares 1,395 Value ($000) $524 Avg Close $402.77 Range $351.19 - $474.37

Q3 2017

Shares 3,009 Value ($000) $1,345 Avg Close $473.21 Range $424.12 - $523.22

Q3 2016

Shares 1,525 Value ($000) $613 Avg Close $398.92 Range $346.51 - $441.54

Q1 2016

Shares 1,188 Value ($000) $428 Avg Close $409.79 Range $347.04 - $529.97

Q4 2015

Shares 457 Value ($000) $248 Avg Close $538.82 Range $445.63 - $589.32

Q3 2015

Shares 1,636 Value ($000) $761 Avg Close $534.07 Range $433.12 - $602.59

Q2 2015

Shares 647 Value ($000) $330 Avg Close $485.93 Range $431.08 - $541.00

Q1 2015

Shares 5,197 Value ($000) $2,346 Avg Close $421.46 Range $390.83 - $492.77

Q3 2014

Shares 3,858 Value ($000) $1,391 Avg Close $333.32 Range $283.49 - $367.27

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2025	1,307	$735	$564.28	$519.56 - $609.69
Q2 2025	470	$247	$556.12	$475.17 - $638.52
Q1 2025	11,542	$7,320	$684.44	$615.89 - $745.12
Q4 2024	108,150	$77,038	$834.60	$689.18 - $1055.74
Q3 2024	7,000	$7,359	$1106.73	$1002.85 - $1204.52
Q1 2024	33,257	$32,010	$945.64	$866.58 - $992.82
Q2 2023	68,320	$49,091	$766.75	$681.03 - $832.93
Q3 2022	5,253	$3,619	$625.92	$560.71 - $750.51
Q2 2022	459	$271	$646.43	$535.04 - $743.30
Q1 2021	5,832	$2,759	$484.19	$438.57 - $555.83
Q4 2020	3,080	$1,488	$536.82	$468.18 - $616.55
Q3 2020	3,160	$1,769	$602.99	$537.02 - $660.97
Q2 2019	1,227	$384	$331.08	$293.64 - $413.60
Q1 2019	1,823	$749	$409.51	$363.99 - $439.56
Q3 2018	810	$327	$378.49	$340.69 - $414.19
Q4 2017	1,395	$524	$402.77	$351.19 - $474.37
Q3 2017	3,009	$1,345	$473.21	$424.12 - $523.22
Q3 2016	1,525	$613	$398.92	$346.51 - $441.54
Q1 2016	1,188	$428	$409.79	$347.04 - $529.97
Q4 2015	457	$248	$538.82	$445.63 - $589.32
Q3 2015	1,636	$761	$534.07	$433.12 - $602.59
Q2 2015	647	$330	$485.93	$431.08 - $541.00
Q1 2015	5,197	$2,346	$421.46	$390.83 - $492.77
Q3 2014	3,858	$1,391	$333.32	$283.49 - $367.27