PTC THERAPEUTICS INC

Ticker: PTCT CUSIP: 69366J200 Class: Common Stock

NORTHERN TRUST CORP's Holding History (CIK: 0000073124)

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

Q4 2025

Shares 769,420 Value ($000) $58,445 Avg Close $72.67 Range $60.80 - $87.50

Q3 2025

Shares 737,569 Value ($000) $45,265 Avg Close $52.09 Range $43.17 - $63.19

Q2 2025

Shares 739,191 Value ($000) $36,102 Avg Close $47.47 Range $35.95 - $52.98

Q1 2025

Shares 744,011 Value ($000) $37,915 Avg Close $49.90 Range $41.66 - $58.38

Q4 2024

Shares 727,976 Value ($000) $32,861 Avg Close $42.80 Range $34.57 - $54.16

Q3 2024

Shares 675,262 Value ($000) $25,052 Avg Close $33.48 Range $29.02 - $38.62

Q2 2024

Shares 658,459 Value ($000) $20,136 Avg Close $32.39 Range $24.00 - $40.69

Q1 2024

Shares 675,001 Value ($000) $19,636 Avg Close $28.01 Range $23.58 - $32.91

Q4 2023

Shares 688,847 Value ($000) $18,985 Avg Close $22.87 Range $17.53 - $30.11

Q3 2023

Shares 691,193 Value ($000) $15,490 Avg Close $37.19 Range $22.03 - $42.63

Q2 2023

Shares 686,132 Value ($000) $27,905 Avg Close $48.93 Range $39.66 - $59.84

Q1 2023

Shares 656,863 Value ($000) $31,818 Avg Close $45.71 Range $37.25 - $50.20

Q4 2022

Shares 651,713 Value ($000) $24,876 Avg Close $41.57 Range $33.25 - $55.25

Q3 2022

Shares 647,611 Value ($000) $32,510 Avg Close $49.00 Range $40.00 - $55.58

Q2 2022

Shares 655,569 Value ($000) $26,262 Avg Close $35.06 Range $25.01 - $45.80

Q1 2022

Shares 672,323 Value ($000) $25,085 Avg Close $38.53 Range $32.45 - $45.19

Q4 2021

Shares 708,623 Value ($000) $28,224 Avg Close $38.27 Range $34.85 - $42.95

Q3 2021

Shares 714,381 Value ($000) $26,582 Avg Close $41.08 Range $36.38 - $45.46

Q2 2021

Shares 735,486 Value ($000) $31,089 Avg Close $42.85 Range $37.12 - $50.26

Q1 2021

Shares 729,918 Value ($000) $34,561 Avg Close $59.38 Range $46.51 - $70.82

Q4 2020

Shares 778,307 Value ($000) $47,500 Avg Close $58.94 Range $46.86 - $68.81

Q3 2020

Shares 801,597 Value ($000) $37,474 Avg Close $49.23 Range $44.19 - $58.13

Q2 2020

Shares 839,344 Value ($000) $42,589 Avg Close $49.14 Range $40.03 - $55.00

Q1 2020

Shares 784,761 Value ($000) $35,009 Avg Close $50.35 Range $30.79 - $59.89

Q4 2019

Shares 765,746 Value ($000) $36,779 Avg Close $42.49 Range $31.49 - $50.96

Q3 2019

Shares 757,026 Value ($000) $25,603 Avg Close $43.52 Range $33.05 - $48.81

Q2 2019

Shares 682,232 Value ($000) $30,701 Avg Close $39.49 Range $34.51 - $45.00

Q1 2019

Shares 669,778 Value ($000) $25,211 Avg Close $33.58 Range $27.53 - $39.67

Q4 2018

Shares 590,227 Value ($000) $20,257 Avg Close $35.96 Range $28.91 - $48.99

Q3 2018

Shares 762,338 Value ($000) $35,829 Avg Close $41.38 Range $32.13 - $48.85

Q2 2018

Shares 736,892 Value ($000) $24,855 Avg Close $31.18 Range $24.60 - $52.95

Q1 2018

Shares 665,136 Value ($000) $17,999 Avg Close $25.34 Range $16.38 - $33.22

Q4 2017

Shares 667,657 Value ($000) $11,136 Avg Close $16.93 Range $14.87 - $21.58

Q3 2017

Shares 677,230 Value ($000) $13,551 Avg Close $19.54 Range $14.56 - $22.00

Q2 2017

Shares 615,096 Value ($000) $11,275 Avg Close $13.47 Range $9.41 - $18.86

Q1 2017

Shares 566,788 Value ($000) $5,578 Avg Close $12.10 Range $8.12 - $16.50

Q4 2016

Shares 563,557 Value ($000) $6,149 Avg Close $10.49 Range $4.03 - $14.57

Q3 2016

Shares 547,068 Value ($000) $7,664 Avg Close $8.13 Range $5.64 - $14.35

Q2 2016

Shares 456,607 Value ($000) $3,205 Avg Close $7.33 Range $5.78 - $10.15

Q1 2016

Shares 402,534 Value ($000) $3,062 Avg Close $17.36 Range $5.27 - $31.89

Q4 2015

Shares 428,004 Value ($000) $13,868 Avg Close $29.43 Range $22.67 - $35.76

Q3 2015

Shares 419,709 Value ($000) $11,205 Avg Close $42.77 Range $24.63 - $62.15

Q2 2015

Shares 306,666 Value ($000) $14,759 Avg Close $58.34 Range $46.17 - $78.72

Q1 2015

Shares 303,104 Value ($000) $18,444 Avg Close $61.01 Range $46.91 - $77.87

Q4 2014

Shares 286,145 Value ($000) $14,814 Avg Close $44.02 Range $33.02 - $57.50

Q3 2014

Shares 263,377 Value ($000) $11,591 Avg Close $31.28 Range $22.70 - $47.20

Q2 2014

Shares 158,564 Value ($000) $4,145 Avg Close $21.40 Range $14.51 - $28.75

Q1 2014

Shares 150,010 Value ($000) $3,921 Avg Close $26.87 Range $16.21 - $34.65

Q4 2013

Shares 131,522 Value ($000) $2,232 Avg Close $17.58 Range $13.15 - $22.42

Q3 2013

Shares 44,386 Value ($000) $953 Avg Close $17.38 Range $13.88 - $24.38

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	769,420	$58,445	$72.67	$60.80 - $87.50
Q3 2025	737,569	$45,265	$52.09	$43.17 - $63.19
Q2 2025	739,191	$36,102	$47.47	$35.95 - $52.98
Q1 2025	744,011	$37,915	$49.90	$41.66 - $58.38
Q4 2024	727,976	$32,861	$42.80	$34.57 - $54.16
Q3 2024	675,262	$25,052	$33.48	$29.02 - $38.62
Q2 2024	658,459	$20,136	$32.39	$24.00 - $40.69
Q1 2024	675,001	$19,636	$28.01	$23.58 - $32.91
Q4 2023	688,847	$18,985	$22.87	$17.53 - $30.11
Q3 2023	691,193	$15,490	$37.19	$22.03 - $42.63
Q2 2023	686,132	$27,905	$48.93	$39.66 - $59.84
Q1 2023	656,863	$31,818	$45.71	$37.25 - $50.20
Q4 2022	651,713	$24,876	$41.57	$33.25 - $55.25
Q3 2022	647,611	$32,510	$49.00	$40.00 - $55.58
Q2 2022	655,569	$26,262	$35.06	$25.01 - $45.80
Q1 2022	672,323	$25,085	$38.53	$32.45 - $45.19
Q4 2021	708,623	$28,224	$38.27	$34.85 - $42.95
Q3 2021	714,381	$26,582	$41.08	$36.38 - $45.46
Q2 2021	735,486	$31,089	$42.85	$37.12 - $50.26
Q1 2021	729,918	$34,561	$59.38	$46.51 - $70.82
Q4 2020	778,307	$47,500	$58.94	$46.86 - $68.81
Q3 2020	801,597	$37,474	$49.23	$44.19 - $58.13
Q2 2020	839,344	$42,589	$49.14	$40.03 - $55.00
Q1 2020	784,761	$35,009	$50.35	$30.79 - $59.89
Q4 2019	765,746	$36,779	$42.49	$31.49 - $50.96
Q3 2019	757,026	$25,603	$43.52	$33.05 - $48.81
Q2 2019	682,232	$30,701	$39.49	$34.51 - $45.00
Q1 2019	669,778	$25,211	$33.58	$27.53 - $39.67
Q4 2018	590,227	$20,257	$35.96	$28.91 - $48.99
Q3 2018	762,338	$35,829	$41.38	$32.13 - $48.85
Q2 2018	736,892	$24,855	$31.18	$24.60 - $52.95
Q1 2018	665,136	$17,999	$25.34	$16.38 - $33.22
Q4 2017	667,657	$11,136	$16.93	$14.87 - $21.58
Q3 2017	677,230	$13,551	$19.54	$14.56 - $22.00
Q2 2017	615,096	$11,275	$13.47	$9.41 - $18.86
Q1 2017	566,788	$5,578	$12.10	$8.12 - $16.50
Q4 2016	563,557	$6,149	$10.49	$4.03 - $14.57
Q3 2016	547,068	$7,664	$8.13	$5.64 - $14.35
Q2 2016	456,607	$3,205	$7.33	$5.78 - $10.15
Q1 2016	402,534	$3,062	$17.36	$5.27 - $31.89
Q4 2015	428,004	$13,868	$29.43	$22.67 - $35.76
Q3 2015	419,709	$11,205	$42.77	$24.63 - $62.15
Q2 2015	306,666	$14,759	$58.34	$46.17 - $78.72
Q1 2015	303,104	$18,444	$61.01	$46.91 - $77.87
Q4 2014	286,145	$14,814	$44.02	$33.02 - $57.50
Q3 2014	263,377	$11,591	$31.28	$22.70 - $47.20
Q2 2014	158,564	$4,145	$21.40	$14.51 - $28.75
Q1 2014	150,010	$3,921	$26.87	$16.21 - $34.65
Q4 2013	131,522	$2,232	$17.58	$13.15 - $22.42
Q3 2013	44,386	$953	$17.38	$13.88 - $24.38