AM

Antero Midstream Corp
UtilitiesUSCUSIP 03676B102◍ Confluence graph
Tracked 13F Holders
465
-174 QoQ
13F Value (tracked)
$5.7B
Insider Net · 180d
-$5.2M
0↑ 4↓
Recent Filings
15
Smart-money sentimentMixed
BearishBullish
13F funds (latest Q)34 adding · 19 trimming
Insider net (180d)-$5.2M

Who owns AM?

465 tracked 13F filers

465 tracked 13F filers disclose a position in AM as of the latest SEC 13F filings, a combined $5.7B in reported value. Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.

All quarters use one ordinary-share-equivalent series. Historical ADS are converted at 2 ADS = 1 ordinary share. Expand a row for the exact calculation; the residual is not classified as a trade.
4 source-reported value rows are withheld because the reported units do not agree with same-security peers. Share counts remain visible and unchanged.
#FundPosition valueSharesLast moveAs ofHistory
1BlackRock, Inc.
$846.3M
37.1M
−5.3%
Reduced · −2.1M sh
Q1 2026
2VANGUARD PORTFOLIO MANAGEMENT LLC
$417.2M
18.3M
First observed position
No prior filed position
Q1 2026
3VANGUARD CAPITAL MANAGEMENT LLC
$337.7M
14.8M
First observed position
No prior filed position
Q1 2026
4STATE STREET CORP
$263.0M
11.6M
−0.3%
Reduced · −35K sh
Q2 2026
5TORTOISE CAPITAL ADVISORS, L.L.C.
$254.4M
11.2M
−2.1%
Reduced · −244K sh
Q1 2026
6GEODE CAPITAL MANAGEMENT, LLC
$235.7M
10.4M
+4.7%
Added · +462K sh
Q2 2026
7Bank of New York Mellon Corp
$208.1M
9.1M
+11%
Added · +921K sh
Q1 2026
8DIMENSIONAL FUND ADVISORS LP
$205.6M
9.0M
−2.4%
Reduced · −223K sh
Q1 2026
9Neuberger Berman Group LLC
$165.8M
7.3M
−2.2%
Reduced · −165K sh
Q1 2026
10MORGAN STANLEY
$142.6M
6.3M
+3.7%
Added · +221K sh
Q1 2026
11KAYNE ANDERSON CAPITAL ADVISORS LP
$96.9M
4.2M
−6.3%
Reduced · −286K sh
Q1 2026
12CHARLES SCHWAB INVESTMENT MANAGEMENT INC
$89.8M
3.9M
+2.5%
Added · +97K sh
Q1 2026
13MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.
$89.0M
3.9M
−3.6%
Reduced · −144K sh
Q1 2026
14ALLIANCEBERNSTEIN L.P.
$68.0M
3.8M
+676%
Added · +3.3M sh
Q1 2026
15NORGES BANK
$67.0M
3.8M
−11%
Reduced · −482K sh
Q4 2025
16Clearbridge Investments, LLC
$85.3M
3.7M
+2.9%
Added · +107K sh
Q1 2026
17NORTHERN TRUST CORP
$85.1M
3.7M
−0.2%
Reduced · −7K sh
Q1 2026
18Boston Trust Walden Corp
$78.2M
3.4M
−7.4%
Reduced · −274K sh
Q1 2026
19Blackstone Inc.
$64.1M
2.8M
+0.5%
Added · +14K sh
Q1 2026
20Qube Research & Technologies Ltd
$59.9M
2.6M
+2.6%
Added · +67K sh
Q1 2026
21Clark Capital Management Group, Inc.
$59.5M
2.6M
+2.5%
Added · +63K sh
Q2 2026
22PRUDENTIAL FINANCIAL INC
$59.5M
2.6M
128×
Added · +2.6M sh
Q1 2026
23Orbis Allan Gray Ltd
$55.1M
2.4M
+7.0%
Added · +158K sh
Q2 2026
24WESTWOOD HOLDINGS GROUP INC
$53.0M
2.3M
−12%
Reduced · −319K sh
Q1 2026
25BNP PARIBAS FINANCIAL MARKETS
$51.5M
2.3M
+42%
Added · +666K sh
Q1 2026

Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.

Is AM being bought or sold by institutions?

Last quarter, 1 fund opened a new position in AM and 33 added to an existing one, while 19 reduced and 0 exited entirely — based on 13F filings from active, signal-eligible managers (passive index funds and other mechanical holders are excluded from this count).

Opened (NEW)
1
funds
Added
33
funds
Reduced
19
funds
Exited
0
funds

Funds that own AM also own

CompanyCo-held byCombined value
MICROSOFT CORPMSFT255 funds$252.6B
AMAZON.COM INCAMZN254 funds$191.1B
NVIDIA CORPNVDA253 funds$367.0B
APPLE INCAAPL252 funds$279.2B
ALPHABET INC-CL AGOOGL249 funds$157.6B
META PLATFORMS INC-CLASS AMETA249 funds$105.1B
BROADCOM INCAVGO247 funds$150.9B
ELI LILLY & COLLY244 funds$74.7B
VISA INC-CLASS A SHARESV241 funds$56.8B
CHEVRON CORPCVX241 funds$27.3B
ALPHABET INC-CL CGOOG240 funds$119.2B
JPMORGAN CHASE & COJPM240 funds$56.1B

Ranked by how many of AM's institutional holders also hold each name, a cross-fund conviction signal.

Insider activity (Form 4)

Full insider page →
Buys · 180d
$0
0 insiders
Sells · 180d
$5.2M
4 insiders
Net
-$5.2M
7 P/S txns
Signal
Net Selling
open-market
DateInsiderRoleActionSharesValue
Aug 6, 2026KLIMLEY BROOKS JDirectorSell (S)5K$106K
Aug 4, 2026Pearce SheriSee RemarksSell (S)16K$352K
May 4, 2026Kennedy Michael N.See Remarks, DirectorSell (S)100K$2.2M
May 4, 2026Schultz Yvette KSee Remarks, DirectorSell (S)69K$1.5M
Mar 12, 2026KLIMLEY BROOKS JDirectorSell (S)5K$116K
Mar 10, 2026Pearce SheriSee RemarksSell (S)14K$319K
Mar 9, 2026Schultz Yvette KSee Remarks, DirectorSell (S)25K$570K
Dec 16, 2025KLIMLEY BROOKS JDirectorSell (S)5K$88K
Aug 20, 2025Pearce SheriSee RemarksSell (S)39K$686K
May 28, 2025KLIMLEY BROOKS JDirectorSell (S)5K$94K
Dec 13, 2024MCARDLE JANINE JDirectorBuy (P)1K$18K
Nov 5, 2024KLIMLEY BROOKS JDirectorSell (S)10K$147K

Institutional ownership over time

256 funds-52 since Q3 2024
0215430Q3 2024Q1 2025Q3 2025Q1 2026Q2 2026
funds holding aggregate valuelatest $1.2B · 2 values withheld

Recent filings

15 shown

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Connected entities for AM

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Ask your agent what changed in AM

This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.

Copy-paste
curl -H "Authorization: Bearer YOUR_API_KEY" \
  "https://arkolith.com/api/v1/stocks/AM/capital-change-brief"
Ask your agent
Use Arkolith's capital_change_brief for AM.
Tell me what changed, whether insider activity
corroborates it, and cite the SEC evidence.

13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for AM. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.