ANTERO MIDSTREAM CORP

Ticker: AM CUSIP: 03676B102 Class: Com

OPPENHEIMER & CO INC's Holding History (CIK: 0000822581)

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

Q4 2025

Shares 150,012 Value ($000) $2,669 Avg Close $17.75 Range $16.76 - $19.24

Q3 2025

Shares 504,755 Value ($000) $9,812 Avg Close $17.58 Range $16.36 - $19.34

Q2 2025

Shares 358,455 Value ($000) $6,793 Avg Close $17.16 Range $14.32 - $18.38

Q1 2025

Shares 742,257 Value ($000) $13,361 Avg Close $15.67 Range $14.22 - $17.38

Q4 2024

Shares 693,996 Value ($000) $10,472 Avg Close $14.21 Range $13.32 - $14.99

Q3 2024

Shares 686,933 Value ($000) $10,338 Avg Close $13.39 Range $12.11 - $14.12

Q2 2024

Shares 393,695 Value ($000) $5,803 Avg Close $12.99 Range $12.03 - $13.72

Q1 2024

Shares 537,289 Value ($000) $7,554 Avg Close $11.39 Range $10.36 - $12.63

Q4 2023

Shares 426,307 Value ($000) $5,342 Avg Close $11.02 Range $9.92 - $11.82

Q3 2023

Shares 224,735 Value ($000) $2,692 Avg Close $10.17 Range $9.62 - $10.67

Q2 2023

Shares 338,801 Value ($000) $3,930 Avg Close $8.94 Range $8.20 - $9.87

Q1 2023

Shares 581,571 Value ($000) $6,101 Avg Close $8.76 Range $7.91 - $9.37

Q4 2022

Shares 659,826 Value ($000) $7,120 Avg Close $8.56 Range $7.39 - $9.41

Q3 2022

Shares 495,349 Value ($000) $4,547 Avg Close $7.77 Range $6.64 - $8.55

Q2 2022

Shares 522,421 Value ($000) $4,728 Avg Close $8.02 Range $6.79 - $8.88

Q1 2022

Shares 505,651 Value ($000) $5,497 Avg Close $7.65 Range $6.95 - $8.72

Q4 2021

Shares 416,176 Value ($000) $4,029 Avg Close $7.64 Range $6.72 - $8.52

Q3 2021

Shares 475,739 Value ($000) $4,957 Avg Close $7.08 Range $6.12 - $7.87

Q2 2021

Shares 406,546 Value ($000) $4,224 Avg Close $6.74 Range $5.73 - $7.60

Q1 2021

Shares 395,220 Value ($000) $3,569 Avg Close $5.90 Range $5.05 - $6.72

Q4 2020

Shares 182,883 Value ($000) $1,410 Avg Close $4.46 Range $3.23 - $5.76

Q3 2020

Shares 130,772 Value ($000) $702 Avg Close $3.81 Range $3.03 - $4.82

Q2 2020

Shares 80,300 Value ($000) $409 Avg Close $2.62 Range $1.11 - $3.87

Q1 2020

Shares 33,904 Value ($000) $71 Avg Close $2.61 Range $0.95 - $4.18

Q4 2019

Shares 41,454 Value ($000) $315 Avg Close $3.30 Range $2.26 - $4.29

Q3 2019

Shares 71,258 Value ($000) $527 Avg Close $4.34 Range $3.32 - $6.15

Q2 2019

Shares 67,811 Value ($000) $777 Avg Close $6.28 Range $5.32 - $7.00

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	150,012	$2,669	$17.75	$16.76 - $19.24
Q3 2025	504,755	$9,812	$17.58	$16.36 - $19.34
Q2 2025	358,455	$6,793	$17.16	$14.32 - $18.38
Q1 2025	742,257	$13,361	$15.67	$14.22 - $17.38
Q4 2024	693,996	$10,472	$14.21	$13.32 - $14.99
Q3 2024	686,933	$10,338	$13.39	$12.11 - $14.12
Q2 2024	393,695	$5,803	$12.99	$12.03 - $13.72
Q1 2024	537,289	$7,554	$11.39	$10.36 - $12.63
Q4 2023	426,307	$5,342	$11.02	$9.92 - $11.82
Q3 2023	224,735	$2,692	$10.17	$9.62 - $10.67
Q2 2023	338,801	$3,930	$8.94	$8.20 - $9.87
Q1 2023	581,571	$6,101	$8.76	$7.91 - $9.37
Q4 2022	659,826	$7,120	$8.56	$7.39 - $9.41
Q3 2022	495,349	$4,547	$7.77	$6.64 - $8.55
Q2 2022	522,421	$4,728	$8.02	$6.79 - $8.88
Q1 2022	505,651	$5,497	$7.65	$6.95 - $8.72
Q4 2021	416,176	$4,029	$7.64	$6.72 - $8.52
Q3 2021	475,739	$4,957	$7.08	$6.12 - $7.87
Q2 2021	406,546	$4,224	$6.74	$5.73 - $7.60
Q1 2021	395,220	$3,569	$5.90	$5.05 - $6.72
Q4 2020	182,883	$1,410	$4.46	$3.23 - $5.76
Q3 2020	130,772	$702	$3.81	$3.03 - $4.82
Q2 2020	80,300	$409	$2.62	$1.11 - $3.87
Q1 2020	33,904	$71	$2.61	$0.95 - $4.18
Q4 2019	41,454	$315	$3.30	$2.26 - $4.29
Q3 2019	71,258	$527	$4.34	$3.32 - $6.15
Q2 2019	67,811	$777	$6.28	$5.32 - $7.00