AMAntero Midstream Corporationas of 2026-09-16
Horizon

Issued 2026-09-16 at $21.16 · now $21.16 (2026-09-16, +0.0% since)

Based on its own history, a month from the 2026-09-16 close, AM has typically landed between $19.27 and $23.67 — a range of −8.9% to +11.9% from the issuance price $21.16.

Range of outcomes in historically similar periods — not a price prediction. Ranges are scored publicly on /methodology.
  • Actual close
  • Typical path (median)
  • Middle 50% of outcomes
  • 90% range

2,323 overlapping 1 month windows · 2017-05-03 – 2026-08-17 · basis climatology · forecast (batch). Probability up 53.9% (90% CI 51.7–56.1%, ≈1,408 obs).

The cone is anchored at the 2026-09-16 issuance close ($21.16) — the price the forecast resolves against on 2026-10-15, not the latest close. The drawn path shape is illustrative (bands widen with √t); every labeled number is real — the anchor, the scored batch p90/IQR endpoints, and the typical move.

Where AM has typically landed a month from the 2026-09-16 close of $21.16 — the range is history, not a prediction.

$19.27worst · -8.9%$23.67best · +11.9%
  • now $21.16 (+0.0%)
  • typicalThe typical outcome — half of similar past periods did better and half did worse (not an average, so a few wild periods don't skew it). $21.54 (+1.8%)
  • middle 50%The central range of outcomes — half of similar past periods landed inside it, a quarter finished above, a quarter below. $20.66–$22.41
  • 90% rangeA nine-in-ten range — in about nine of every ten similar past periods the outcome stayed within these bounds. $19.27–$23.67
Actual 1-month windows behind the coneiEvery overlapping 1-month window in this security's own price history was ranked by realized return; shown are the 3 worst and 3 best of 2,323 windows spanning 2017-05-03 to 2026-09-16. Not cherry-picked — these are the extremes of the full sample. Max drop / max rise are the deepest and highest points reached within each window. See /methodology.
StartReturnMax dropMax rise
3 worst
2020-02-19−57.4%−59.6%+3.3%
2020-02-18−55.3%−55.3%+14.2%
2020-02-20−54.4%−60.9%+0.0%
3 best
2020-04-01+149.1%+0.0%+149.1%
2020-03-31+141.9%−2.6%+141.9%
2020-03-30+121.5%−5.8%+126.4%

2,323 overlapping windows · 2017-05-03 – 2026-09-16 · not cherry-picked

Seasonality · by month iHow this security has tended to do in each calendar month historically — a frequency, never a prediction.

iFor each calendar month, the share of years this security closed higher than the month before, and the average month-over-month return, over ~10 years of its own price history. Cells are shaded by average return. This is historical frequency, not a prediction — no month is a signal.
Jan
78%
+2.9%
n=9
Feb
56%
+1.7%
n=9
Mar
67%
−3.8%
n=9
Apr
44%
+14.3%
n=9
May
78%
+4.5%
n=9
Jun
60%
+1.3%
n=10
Jul
50%
+0.7%
n=10
Aug
50%
−2.3%
n=10
Sep
60%
−0.6%
n=10
Oct
44%
+0.5%
n=9
Nov
56%
−0.3%
n=9
Dec
33%
+5.5%
n=9

Up-frequency and average month-over-month return · historical frequency, not a prediction

Reported insider & political trades

Every Form 4 the people closest to this company have filed with the SEC — plotted against the share price, aggregated by month, and shown with the gap between when each trade happened and when it was disclosed. A public record, not advice.

Share price & reported tradesMonthly open-market valueReporting lag — trade date to filing date2026-092026-082026-072026-062026-052026-042026-032026-022026-012025-122025-112025-102025-092025-08$23$172026-08-06: 1 insider sale, $106K — KLIMLEY BROOKS J2026-08-04: 1 insider sale, $352K — Pearce Sheri2026-05-04: 2 insider sales, $3.7M — Kennedy Michael N., Schultz Yvette K2026-03-12: 1 insider sale, $116K — KLIMLEY BROOKS J2026-03-10: 1 insider sale, $319K — Pearce Sheri2026-03-09: 1 insider sale, $570K — Schultz Yvette K2025-12-16: 1 insider sale, $88K — KLIMLEY BROOKS J2025-08-20: 1 insider sale, $686K — Pearce Sheri2025-08: 1 open-market sale, $686K2025-12: 1 open-market sale, $88K2026-03: 3 open-market sales, $1.0M2026-05: 2 open-market sales, $3.7M2026-08: 2 open-market sales, $459K↑ buys↓ salesdirector KLIMLEY BROOKS J — Sale on 2026-08-06, filed same dayofficer Pearce Sheri — Sale on 2026-08-04, filed 1 day after the tradedirector Kennedy Michael N. — Sale on 2026-05-04, filed same daydirector Schultz Yvette K — Sale on 2026-05-04, filed same daydirector KLIMLEY BROOKS J — Sale on 2026-03-12, filed same dayofficer Pearce Sheri — Sale on 2026-03-10, filed same daydirector Schultz Yvette K — Sale on 2026-03-09, filed 1 day after the tradedirector KLIMLEY BROOKS J — Sale on 2025-12-16, filed same dayofficer Pearce Sheri — Sale on 2025-08-20, filed 1 day after the trade
DatePersonRoleActionShares @ priceValueOwnership Δvs S&P 1mvs S&P 6mOwned afterFiling
2026-08-06KLIMLEY BROOKS JdirectorSale5,000 @ $21.27$106K−6.8% of holding−2.3%not yet — horizon still open68,204Form 4 · filed same day
2026-08-04Pearce SheriofficerSale16,000 @ $22.01$352K−16.0% of holding−2.3%not yet — horizon still open83,900Form 4 · filed 1 day after the trade
2026-05-04Kennedy Michael N.directorSale100,000 @ $21.92$2.2M−6.2% of holding−8.3%not yet — horizon still open1,500,594Form 4 · filed same day
2026-05-04Schultz Yvette KdirectorSale69,269 @ $21.90$1.5M−10.7% of holding−8.3%not yet — horizon still open580,565Form 4 · filed same day
2026-03-12KLIMLEY BROOKS JdirectorSale5,000 @ $23.16$116K−6.7% of holding−8.6%not yet — horizon still open69,680Form 4 · filed same day
2026-03-10Pearce SheriofficerSale14,000 @ $22.76$319K−12.3% of holding−2.4%not yet — horizon still open99,900Form 4 · filed same day
2026-03-09Schultz Yvette KdirectorSale25,000 @ $22.81$570K−3.7% of holding−1.2%not yet — horizon still open649,834Form 4 · filed 1 day after the trade
2025-12-16KLIMLEY BROOKS JdirectorSale5,000 @ $17.59$88K−6.4% of holding+1.4%+14.8%72,622Form 4 · filed same day
2025-08-20Pearce SheriofficerSale39,155 @ $17.51$686K−26.9% of holding+1.8%+18.0%106,489Form 4 · filed 1 day after the trade
2025-05-28KLIMLEY BROOKS JdirectorSale5,000 @ $18.88$94K−6.4% of holding−4.7%−19.7%73,645Form 4 · filed 1 day after the trade
2024-12-13MCARDLE JANINE JdirectorPurchase1,174 @ $15.11$18K+1.7% of holding+9.8%+23.9%68,320Form 4 · filed 3 days after the trade

The vs-S&P columns are a labeled look-back on what the stock did after each filing, measured against the index over the same window. Descriptive history, not a claim about the person or a reason to trade.

102 award / exercise / gift records — not counted as purchases

Awards, option exercises, gifts and tax-withholding disposals are shown separately and never counted as open-market purchases or sales — they carry no conviction information.

DatePersonRoleActionSharesOwned afterFiling
2026-07-10KEYTE DAVID HdirectorAward / grant3,225117,903Form 4
2026-07-10MCARDLE JANINE JdirectorAward / grant1,90782,424Form 4
2026-07-10Munoz Jeffrey S.directorAward / grant1,90713,404Form 4
2026-07-10MOLLENKOPF JOHN CdirectorAward / grant1,907106,566Form 4
2026-07-10Chisholm NancydirectorAward / grant1,90734,208Form 4
2026-07-10Keenan W Howard JRdirectorAward / grant1,907157,691Form 4
2026-07-10DEA PETER AdirectorAward / grant1,90768,808Form 4
2026-07-10KLIMLEY BROOKS JdirectorAward / grant1,90773,204Form 4
2026-04-10Keenan W Howard JRdirectorAward / grant1,617155,784Form 4
2026-04-10Munoz Jeffrey S.directorAward / grant1,61711,497Form 4
2026-04-10Chisholm NancydirectorAward / grant1,61732,301Form 4
2026-04-10KLIMLEY BROOKS JdirectorAward / grant1,61771,297Form 4
2026-04-10MOLLENKOPF JOHN CdirectorAward / grant1,617104,659Form 4
2026-04-10MCARDLE JANINE JdirectorAward / grant1,61780,517Form 4
2026-04-10KEYTE DAVID HdirectorAward / grant2,950114,678Form 4
2026-04-10DEA PETER AdirectorAward / grant1,61766,901Form 4
2026-03-07Kennedy Michael N.directorWithheld for tax108,5261,615,594Form 4
2026-03-07Schultz Yvette KdirectorWithheld for tax66,252674,834Form 4
2026-03-07Krueger Brendan E.officerWithheld for tax56,546674,952Form 4
2026-03-07Pearce SheriofficerWithheld for tax25,240113,900Form 4
2026-03-07Agnew Justin J.officerWithheld for tax15,499208,895Form 4
2026-03-07Kennedy Michael N.directorAward / grant261,2101,724,120Form 4
2026-03-07Krueger Brendan E.officerAward / grant97,953731,498Form 4
2026-03-07Pearce SheriofficerAward / grant32,651139,140Form 4
2026-03-07Agnew Justin J.officerAward / grant32,651224,394Form 4
2026-03-07Schultz Yvette KdirectorAward / grant97,953741,086Form 4
2026-03-07Kennedy Michael N.directorGift15,0001,600,594Form 4
2026-02-24Kennedy Michael N.directorWithheld for tax89,3921,462,910Form 4
2026-02-24Schultz Yvette KdirectorWithheld for tax54,785643,133Form 4
2026-02-24Krueger Brendan E.officerWithheld for tax43,847633,545Form 4
2026-02-24Schultz Yvette KdirectorAward / grant124,054697,918Form 4
2026-02-24Kennedy Michael N.directorAward / grant203,2121,552,302Form 4
2026-02-24Krueger Brendan E.officerAward / grant99,242677,392Form 4
2026-01-10KEYTE DAVID HdirectorAward / grant3,755111,728Form 4
2026-01-10MCARDLE JANINE JdirectorAward / grant2,05878,900Form 4
2026-01-10MOLLENKOPF JOHN CdirectorAward / grant2,058103,042Form 4
2026-01-10Chisholm NancydirectorAward / grant2,05830,684Form 4
2026-01-10DEA PETER AdirectorAward / grant2,05865,284Form 4
2026-01-10Munoz Jeffrey S.directorAward / grant2,0589,880Form 4
2026-01-10Keenan W Howard JRdirectorAward / grant2,058154,167Form 4

Source: SEC Form 4 filings. Each row links to its original filing.

Across 2012–2021, stocks where a CEO, C-suite officer, or director had recently made an open-market common-stock purchase ran about +28 bp per month above the universe average (n=34,268 stock-weeks). A historical tendency, not a prediction.

Congressional disclosures iStock trades disclosed by members of Congress for this company, by the date they were filed.iDisclosures shown as facts. A purchase “cluster” (≥2 members of Congress filing a buy within 90 days) has historically preceded modestly higher forward returns — and it persisted out-of-sample, though it roughly halved after 2021 (see below). A descriptive historical tendency, not a signal to trade and not used in our forecast. See /methodology.

As of 2026-09-16 · point-in-time by filed date

Purchase clusters · 2015–2021 (dev)+45 bp/mo vs baseline · up-rate 59.3% vs 57.3% · n=31,607 cluster ticker-weeks
Purchase clusters · 2022–2026 (out-of-sample)+32 bp/mo vs baseline · up-rate 54.0% vs 53.3% · n=27,793

A cluster = ≥2 members of Congress filing a purchase within 90 days. The historical tilt persisted after 2021 but roughly halved (+45 → +32 bp/mo forward 1-month vs the S&P 500 weekly-grid baseline). Descriptive historical tendency — not a signal to trade, and not used in our forecast (audition-log 2026-07-27, recomputed 2026-09-08).

MemberChamberTypeFiledTradedSize
Virginia FoxxHousepurchase2022-03-072022-02-10$1–15K
Virginia FoxxHousesale2022-03-072022-02-17$50–100K
Mark Dr GreenHousesale2022-02-142022-02-09$1M+
Mark Dr GreenHousepurchase2022-02-142022-02-07$100–250K
Mark Dr GreenHousepurchase2022-01-182022-01-06$250–500K
Mark Dr GreenHousepurchase2022-01-032021-12-29$500K–1M
Virginia FoxxHousepurchase2021-12-032021-11-11$1–15K
Mark Dr GreenHousesale2021-09-302021-09-27$250–500K
Mark Dr GreenHousepurchase2021-09-232021-09-01$100–250K
Virginia FoxxHousepurchase2021-09-032021-08-11$1–15K
Mark Dr GreenHousesale2021-08-232021-08-19$500K–1M
Mark Dr GreenHousepurchase2021-08-232021-08-11$50–100K
Mark Dr GreenHousepurchase2021-07-132021-07-09$250–500K
Virginia FoxxHousepurchase2021-06-032021-05-13$1–15K

Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.