SEI Investments’s Antero Midstream AM Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q1 | $9.97M | Buy |
437,144
+332,822
| +319% | +$6.87M | 0.01% | 1150 |
|
|
2025
Q4 | $1.86M | Sell |
104,322
-21,080
| -17% | -$380K | ﹤0.01% | 1895 |
|
|
2025
Q3 | $2.44M | Buy |
125,402
+20,444
| +19% | +$369K | ﹤0.01% | 1619 |
|
|
2025
Q2 | $1.99M | Buy |
104,958
+40,910
| +64% | +$731K | ﹤0.01% | 1655 |
|
|
2025
Q1 | $1.15M | Buy |
64,048
+29,990
| +88% | +$497K | ﹤0.01% | 1854 |
|
|
2024
Q4 | $514K | Sell |
34,058
-24,179
| -42% | -$368K | ﹤0.01% | 2175 |
|
|
2024
Q3 | $876K | Sell |
58,237
-16,400
| -22% | -$239K | ﹤0.01% | 1991 |
|
|
2024
Q2 | $1.1M | Buy |
74,637
+54,892
| +278% | +$788K | ﹤0.01% | 1878 |
|
|
2024
Q1 | $278K | Buy |
19,745
+4,273
| +28% | +$54.7K | ﹤0.01% | 2332 |
|
|
2023
Q4 | $194K | Sell |
15,472
-50,486
| -77% | -$636K | ﹤0.01% | 2443 |
|
|
2023
Q3 | $790K | Buy |
65,958
+51,856
| +368% | +$614K | ﹤0.01% | 1959 |
|
|
2023
Q2 | $164K | Buy |
14,102
+359
| +3% | +$3.82K | ﹤0.01% | 2499 |
|
|
2023
Q1 | $144K | Buy |
+13,743
| New | +$146K | ﹤0.01% | 2539 |
|
|
2022
Q1 | – | Sell |
-37,430
| Closed | -$396K | – | 2571 |
|
|
2021
Q4 | $396K | Buy |
37,430
+408
| +1% | +$4.23K | ﹤0.01% | 2234 |
|
|
2021
Q3 | $413K | Buy |
37,022
+757
| +2% | +$7.42K | ﹤0.01% | 2158 |
|
|
2021
Q2 | $403K | Sell |
36,265
-13,733
| -27% | -$131K | ﹤0.01% | 2198 |
|
|
2021
Q1 | $379K | Hold |
49,998
| – | – | ﹤0.01% | 2157 |
|
|
2020
Q4 | $379K | Sell |
49,998
-48,098
| -49% | -$326K | ﹤0.01% | 2105 |
|
|
2020
Q3 | $404K | Buy |
+98,096
| New | +$598K | ﹤0.01% | 1971 |
|
|
2019
Q4 | – | Sell |
-110,905
| Closed | -$821K | – | 2381 |
|
|
2019
Q3 | $821K | Sell |
110,905
-1,932
| -2% | -$16.7K | ﹤0.01% | 1681 |
|
|
2019
Q2 | $1.29M | Sell |
112,837
-313,361
| -74% | -$4.01M | ﹤0.01% | 1510 |
|
|
2019
Q1 | $5.87M | Buy |
426,198
+191,558
| +82% | +$2.5M | 0.02% | 828 |
|
|
2018
Q4 | $3.97M | Hold |
234,640
| – | – | 0.01% | 1008 |
|
|
2018
Q3 | $3.97M | Sell |
234,640
-5,547
| -2% | -$102K | 0.01% | 981 |
|
|
2018
Q2 | $4.53M | Buy |
240,187
+41,577
| +21% | +$738K | 0.02% | 965 |
|
|
2018
Q1 | $3.18M | Buy |
198,610
+1,185
| +0.6% | +$22.9K | 0.01% | 1022 |
|
|
2017
Q4 | $3.89M | Buy |
197,425
+24,824
| +14% | +$462K | 0.01% | 1019 |
|
|
2017
Q3 | $3.53M | Buy |
172,601
+97,148
| +129% | +$1.94M | 0.01% | 1026 |
|
|
2017
Q2 | $1.66M | Buy |
+75,453
| New | +$1.63M | 0.01% | 1266 |
|
Other funds holding AM
VPM
VCM
TCA
SEI Investments's AM Position: Q1 2026 in Review
SEI Investments increased its Antero Midstream (AM) stake by 319% in Q1 2026, buying an estimated $6.87M and bringing the position to 437,144 shares worth $9.97M. The position accounts for 0.01% of the portfolio, ranked #1150.
SEI Investments first reported a position in AM in Q2 2017 and has held it in 29 quarters since. 510 funds tracked by Wall St. Rank hold AM as of Q1 2026.
- SEI Investments held 437,144 shares of Antero Midstream worth $9.97M as of Q1 2026.
- SEI Investments bought 332,822 Antero Midstream shares in Q1 2026, an estimated $6.87M.
- Antero Midstream made up 0.01% of SEI Investments's portfolio in Q1 2026, its #1150 holding.
- SEI Investments first reported a position in Antero Midstream in Q2 2017 and has held it in 29 quarters since.
- 510 funds tracked by Wall St. Rank held Antero Midstream as of Q1 2026.
Based on SEI Investments's 13F filing for Q1 2026, filed 13 May 2026.