PTC THERAPEUTICS INC

Ticker: PTCT CUSIP: 69366J200 Class: Common Stock

CHARLES SCHWAB INVESTMENT MANAGEMENT INC's Holding History (CIK: 0000884546)

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

Q4 2025

Shares 734,933 Value ($000) $55,826 Avg Close $72.67 Range $60.80 - $87.50

Q3 2025

Shares 702,758 Value ($000) $43,128 Avg Close $52.09 Range $43.17 - $63.19

Q2 2025

Shares 707,704 Value ($000) $34,564 Avg Close $47.47 Range $35.95 - $52.98

Q1 2025

Shares 662,074 Value ($000) $33,739 Avg Close $49.90 Range $41.66 - $58.38

Q4 2024

Shares 685,709 Value ($000) $30,953 Avg Close $42.80 Range $34.57 - $54.16

Q3 2024

Shares 706,730 Value ($000) $26,220 Avg Close $33.48 Range $29.02 - $38.62

Q2 2024

Shares 658,828 Value ($000) $20,147 Avg Close $32.39 Range $24.00 - $40.69

Q1 2024

Shares 619,293 Value ($000) $18,015 Avg Close $28.01 Range $23.58 - $32.91

Q4 2023

Shares 610,918 Value ($000) $16,837 Avg Close $22.87 Range $17.53 - $30.11

Q3 2023

Shares 596,763 Value ($000) $13,373 Avg Close $37.19 Range $22.03 - $42.63

Q2 2023

Shares 573,475 Value ($000) $23,323 Avg Close $48.93 Range $39.66 - $59.84

Q1 2023

Shares 558,309 Value ($000) $27,044 Avg Close $45.71 Range $37.25 - $50.20

Q4 2022

Shares 559,985 Value ($000) $21,375 Avg Close $41.57 Range $33.25 - $55.25

Q3 2022

Shares 547,488 Value ($000) $27,484 Avg Close $49.00 Range $40.00 - $55.58

Q2 2022

Shares 528,538 Value ($000) $21,174 Avg Close $35.06 Range $25.01 - $45.80

Q1 2022

Shares 512,380 Value ($000) $19,117 Avg Close $38.53 Range $32.45 - $45.19

Q4 2021

Shares 499,179 Value ($000) $19,883 Avg Close $38.27 Range $34.85 - $42.95

Q3 2021

Shares 488,610 Value ($000) $18,182 Avg Close $41.08 Range $36.38 - $45.46

Q2 2021

Shares 492,908 Value ($000) $20,836 Avg Close $42.85 Range $37.12 - $50.26

Q1 2021

Shares 472,965 Value ($000) $22,395 Avg Close $59.38 Range $46.51 - $70.82

Q4 2020

Shares 451,001 Value ($000) $27,525 Avg Close $58.94 Range $46.86 - $68.81

Q3 2020

Shares 443,077 Value ($000) $20,714 Avg Close $49.23 Range $44.19 - $58.13

Q2 2020

Shares 430,045 Value ($000) $21,821 Avg Close $49.14 Range $40.03 - $55.00

Q1 2020

Shares 383,152 Value ($000) $17,093 Avg Close $50.35 Range $30.79 - $59.89

Q4 2019

Shares 375,114 Value ($000) $18,017 Avg Close $42.49 Range $31.49 - $50.96

Q3 2019

Shares 352,548 Value ($000) $11,924 Avg Close $43.52 Range $33.05 - $48.81

Q2 2019

Shares 324,137 Value ($000) $14,587 Avg Close $39.49 Range $34.51 - $45.00

Q1 2019

Shares 357,431 Value ($000) $13,454 Avg Close $33.58 Range $27.53 - $39.67

Q4 2018

Shares 318,944 Value ($000) $10,947 Avg Close $35.96 Range $28.91 - $48.99

Q3 2018

Shares 282,854 Value ($000) $13,295 Avg Close $41.38 Range $32.13 - $48.85

Q2 2018

Shares 295,635 Value ($000) $9,972 Avg Close $31.18 Range $24.60 - $52.95

Q1 2018

Shares 223,327 Value ($000) $6,044 Avg Close $25.34 Range $16.38 - $33.22

Q4 2017

Shares 188,488 Value ($000) $3,144 Avg Close $16.93 Range $14.87 - $21.58

Q3 2017

Shares 178,795 Value ($000) $3,578 Avg Close $19.54 Range $14.56 - $22.00

Q2 2017

Shares 154,429 Value ($000) $2,831 Avg Close $13.47 Range $9.41 - $18.86

Q1 2017

Shares 125,761 Value ($000) $1,238 Avg Close $12.10 Range $8.12 - $16.50

Q4 2016

Shares 118,921 Value ($000) $1,298 Avg Close $10.49 Range $4.03 - $14.57

Q3 2016

Shares 112,761 Value ($000) $1,580 Avg Close $8.13 Range $5.64 - $14.35

Q2 2016

Shares 59,021 Value ($000) $415 Avg Close $7.33 Range $5.78 - $10.15

Q1 2016

Shares 100,786 Value ($000) $650 Avg Close $17.36 Range $5.27 - $31.89

Q4 2015

Shares 104,549 Value ($000) $3,388 Avg Close $29.43 Range $22.67 - $35.76

Q3 2015

Shares 97,721 Value ($000) $2,610 Avg Close $42.77 Range $24.63 - $62.15

Q2 2015

Shares 84,252 Value ($000) $4,056 Avg Close $58.34 Range $46.17 - $78.72

Q1 2015

Shares 68,428 Value ($000) $4,164 Avg Close $61.01 Range $46.91 - $77.87

Q4 2014

Shares 65,498 Value ($000) $3,391 Avg Close $44.02 Range $33.02 - $57.50

Q3 2014

Shares 58,353 Value ($000) $2,569 Avg Close $31.28 Range $22.70 - $47.20

Q2 2014

Shares 50,260 Value ($000) $1,314 Avg Close $21.40 Range $14.51 - $28.75

Q1 2014

Shares 34,786 Value ($000) $910 Avg Close $26.87 Range $16.21 - $34.65

Q4 2013

Shares 20,591 Value ($000) $350 Avg Close $17.58 Range $13.15 - $22.42

Q3 2013

Shares 19,943 Value ($000) $447 Avg Close $17.38 Range $13.88 - $24.38

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	734,933	$55,826	$72.67	$60.80 - $87.50
Q3 2025	702,758	$43,128	$52.09	$43.17 - $63.19
Q2 2025	707,704	$34,564	$47.47	$35.95 - $52.98
Q1 2025	662,074	$33,739	$49.90	$41.66 - $58.38
Q4 2024	685,709	$30,953	$42.80	$34.57 - $54.16
Q3 2024	706,730	$26,220	$33.48	$29.02 - $38.62
Q2 2024	658,828	$20,147	$32.39	$24.00 - $40.69
Q1 2024	619,293	$18,015	$28.01	$23.58 - $32.91
Q4 2023	610,918	$16,837	$22.87	$17.53 - $30.11
Q3 2023	596,763	$13,373	$37.19	$22.03 - $42.63
Q2 2023	573,475	$23,323	$48.93	$39.66 - $59.84
Q1 2023	558,309	$27,044	$45.71	$37.25 - $50.20
Q4 2022	559,985	$21,375	$41.57	$33.25 - $55.25
Q3 2022	547,488	$27,484	$49.00	$40.00 - $55.58
Q2 2022	528,538	$21,174	$35.06	$25.01 - $45.80
Q1 2022	512,380	$19,117	$38.53	$32.45 - $45.19
Q4 2021	499,179	$19,883	$38.27	$34.85 - $42.95
Q3 2021	488,610	$18,182	$41.08	$36.38 - $45.46
Q2 2021	492,908	$20,836	$42.85	$37.12 - $50.26
Q1 2021	472,965	$22,395	$59.38	$46.51 - $70.82
Q4 2020	451,001	$27,525	$58.94	$46.86 - $68.81
Q3 2020	443,077	$20,714	$49.23	$44.19 - $58.13
Q2 2020	430,045	$21,821	$49.14	$40.03 - $55.00
Q1 2020	383,152	$17,093	$50.35	$30.79 - $59.89
Q4 2019	375,114	$18,017	$42.49	$31.49 - $50.96
Q3 2019	352,548	$11,924	$43.52	$33.05 - $48.81
Q2 2019	324,137	$14,587	$39.49	$34.51 - $45.00
Q1 2019	357,431	$13,454	$33.58	$27.53 - $39.67
Q4 2018	318,944	$10,947	$35.96	$28.91 - $48.99
Q3 2018	282,854	$13,295	$41.38	$32.13 - $48.85
Q2 2018	295,635	$9,972	$31.18	$24.60 - $52.95
Q1 2018	223,327	$6,044	$25.34	$16.38 - $33.22
Q4 2017	188,488	$3,144	$16.93	$14.87 - $21.58
Q3 2017	178,795	$3,578	$19.54	$14.56 - $22.00
Q2 2017	154,429	$2,831	$13.47	$9.41 - $18.86
Q1 2017	125,761	$1,238	$12.10	$8.12 - $16.50
Q4 2016	118,921	$1,298	$10.49	$4.03 - $14.57
Q3 2016	112,761	$1,580	$8.13	$5.64 - $14.35
Q2 2016	59,021	$415	$7.33	$5.78 - $10.15
Q1 2016	100,786	$650	$17.36	$5.27 - $31.89
Q4 2015	104,549	$3,388	$29.43	$22.67 - $35.76
Q3 2015	97,721	$2,610	$42.77	$24.63 - $62.15
Q2 2015	84,252	$4,056	$58.34	$46.17 - $78.72
Q1 2015	68,428	$4,164	$61.01	$46.91 - $77.87
Q4 2014	65,498	$3,391	$44.02	$33.02 - $57.50
Q3 2014	58,353	$2,569	$31.28	$22.70 - $47.20
Q2 2014	50,260	$1,314	$21.40	$14.51 - $28.75
Q1 2014	34,786	$910	$26.87	$16.21 - $34.65
Q4 2013	20,591	$350	$17.58	$13.15 - $22.42
Q3 2013	19,943	$447	$17.38	$13.88 - $24.38