ANTERO MIDSTREAM CORP

Ticker: AM CUSIP: 03676B102 Class: Com

WELLINGTON MANAGEMENT GROUP LLP's Holding History (CIK: 0000902219)

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

Q4 2025

Shares 218,558 Value ($000) $3,888 Avg Close $17.75 Range $16.76 - $19.24

Q3 2025

Shares 442,300 Value ($000) $8,598 Avg Close $17.58 Range $16.36 - $19.34

Q2 2025

Shares 669,412 Value ($000) $12,685 Avg Close $17.16 Range $14.32 - $18.38

Q1 2025

Shares 563,040 Value ($000) $10,135 Avg Close $15.67 Range $14.22 - $17.38

Q4 2024

Shares 341,708 Value ($000) $5,156 Avg Close $14.21 Range $13.32 - $14.99

Q3 2024

Shares 513,114 Value ($000) $7,722 Avg Close $13.39 Range $12.11 - $14.12

Q2 2024

Shares 1,362,211 Value ($000) $20,079 Avg Close $12.99 Range $12.03 - $13.72

Q1 2024

Shares 1,367,279 Value ($000) $19,224 Avg Close $11.39 Range $10.36 - $12.63

Q4 2023

Shares 1,696,887 Value ($000) $21,262 Avg Close $11.02 Range $9.92 - $11.82

Q3 2023

Shares 1,424,136 Value ($000) $17,061 Avg Close $10.17 Range $9.62 - $10.67

Q2 2023

Shares 1,591,305 Value ($000) $18,459 Avg Close $8.94 Range $8.20 - $9.87

Q1 2023

Shares 1,606,578 Value ($000) $16,853 Avg Close $8.76 Range $7.91 - $9.37

Q4 2022

Shares 1,838,696 Value ($000) $19,840 Avg Close $8.56 Range $7.39 - $9.41

Q3 2022

Shares 1,173,041 Value ($000) $10,769 Avg Close $7.77 Range $6.64 - $8.55

Q2 2022

Shares 43,729 Value ($000) $396 Avg Close $8.02 Range $6.79 - $8.88

Q1 2022

Shares 75,429 Value ($000) $820 Avg Close $7.65 Range $6.95 - $8.72

Q4 2021

Shares 35,523 Value ($000) $344 Avg Close $7.64 Range $6.72 - $8.52

Q3 2021

Shares 35,523 Value ($000) $370 Avg Close $7.08 Range $6.12 - $7.87

Q2 2021

Shares 79,714 Value ($000) $828 Avg Close $6.74 Range $5.73 - $7.60

Q3 2020

Shares 31,256 Value ($000) $168 Avg Close $3.81 Range $3.03 - $4.82

Q2 2020

Shares 15,698 Value ($000) $80 Avg Close $2.62 Range $1.11 - $3.87

Q1 2020

Shares 36,958 Value ($000) $78 Avg Close $2.61 Range $0.95 - $4.18

Q4 2019

Shares 166,280 Value ($000) $1,262 Avg Close $3.30 Range $2.26 - $4.29

Q3 2019

Shares 730,817 Value ($000) $5,408 Avg Close $4.34 Range $3.32 - $6.15

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	218,558	$3,888	$17.75	$16.76 - $19.24
Q3 2025	442,300	$8,598	$17.58	$16.36 - $19.34
Q2 2025	669,412	$12,685	$17.16	$14.32 - $18.38
Q1 2025	563,040	$10,135	$15.67	$14.22 - $17.38
Q4 2024	341,708	$5,156	$14.21	$13.32 - $14.99
Q3 2024	513,114	$7,722	$13.39	$12.11 - $14.12
Q2 2024	1,362,211	$20,079	$12.99	$12.03 - $13.72
Q1 2024	1,367,279	$19,224	$11.39	$10.36 - $12.63
Q4 2023	1,696,887	$21,262	$11.02	$9.92 - $11.82
Q3 2023	1,424,136	$17,061	$10.17	$9.62 - $10.67
Q2 2023	1,591,305	$18,459	$8.94	$8.20 - $9.87
Q1 2023	1,606,578	$16,853	$8.76	$7.91 - $9.37
Q4 2022	1,838,696	$19,840	$8.56	$7.39 - $9.41
Q3 2022	1,173,041	$10,769	$7.77	$6.64 - $8.55
Q2 2022	43,729	$396	$8.02	$6.79 - $8.88
Q1 2022	75,429	$820	$7.65	$6.95 - $8.72
Q4 2021	35,523	$344	$7.64	$6.72 - $8.52
Q3 2021	35,523	$370	$7.08	$6.12 - $7.87
Q2 2021	79,714	$828	$6.74	$5.73 - $7.60
Q3 2020	31,256	$168	$3.81	$3.03 - $4.82
Q2 2020	15,698	$80	$2.62	$1.11 - $3.87
Q1 2020	36,958	$78	$2.61	$0.95 - $4.18
Q4 2019	166,280	$1,262	$3.30	$2.26 - $4.29
Q3 2019	730,817	$5,408	$4.34	$3.32 - $6.15