FolioLantern
KMIKinder Morgan · Insider ownership research

Kinder Morgan insiders sold $2.9M in the past 12 months. How much of their stake is that?

About 1.2% overall. As a group they ended with more shares than they started with. The biggest individual seller, John Schlosser, gave up 25% of starting holdings. These figures leave out Richard Kinder, the largest holder (most holdings were last confirmed in 2018).

Updated Oct 8, 2026 from SEC filings · covers Oct 9, 2025 to Oct 8, 2026
How this comparesMore of their stake sold than at 80 of the 311 other companies we can measure (#232 of 312)See ranking
3
buyers among officers and directors (4 trades), past 12 months
91%
of sales were under disclosed trading plans, past 12 months
4 of 17
officers and directors sold shares, past 12 months
Recent activity · past 30 days, Sep 9, 2026 to Oct 8, 2026
Sep 16, 2026Michael Garthwaite sold 1.6K shares ($48K) under a disclosed trading plan. That is 3.1% of the total stake held that day.
WhoSharesPrice% of total stakeTotal stake afterTrade dateFiled
Michael Garthwaite
VP (Pres., Products Pipelines)
1,550$30.803.1%49KSep 16, 2026Sep 18, 2026

"% of total stake" is the shares in this event against all the vested shares the person held that day, across every share class and holding entity, after that day's vesting. "n/a" means the person's holdings don't reconcile, or the row is a purchase. "Holdings record incomplete" means more shares were sold than the filings show the person held that day, so a percentage would be wrong.

Is this normal? Less than usual: about one-fifth of the 5-year average. 4 insiders sold; the average is 4 a year. Year by year
Latest filing: Filed Sep 18 for a sale on Sep 16. Michael Garthwaite sold 1.6K shares ($48K) under a disclosed plan. Filing
45 SEC ownership filings in the period · See the evidence

What stands out

Three insiders bought shares: Richard Kinder (1.00M shares, $26.0M), Amy Chronis (4.3K shares, $112K) and William Smith (3K shares, $89K).Richard Kinder: purchase, Oct 27, 2025 · Amy Chronis: purchase, Oct 31, 2025 · William Smith: purchase, Feb 2, 2026
John Schlosser sold 25% of vested holdings: 55K shares for $1.7M, all under a disclosed plan.Largest sale, Mar 5, 2026
Michael Garthwaite sold 11K shares (23% of starting holdings), but 16K more vested, so the stake grew (from 48K to 49K).Largest sale, May 18, 2026

Percentages cover 13 of 17 officers and directors. 4 are left out

i
Left out: Richard Kinder (most holdings were last confirmed in 2018); David Michels and Anthony Ashley (most of their shares vested during the period, so a percentage would mislead); Sital Mody (held no vested shares at the start).
Disclosed company stock is not an insider's whole wealth.

Who sold, and how much of their stake

Officers and directors, past 12 months. Each bar is the insider's vested stake at the start of the period (Oct 8, 2025). The gold part is what they sold.

SoldRest of starting stakeAdded during the period
John Schlosser
V.P. (President, Terminals)
25% · $1.7MDisclosed plan
David Michels
VP and Chief Financial Officer
Sold 9% of the shares held or received (after tax withholding) during the period†. No bar against the starting stake: most of these shares arrived during the period.
$600KDisclosed plan
Michael Garthwaite
VP (Pres., Products Pipelines)
Sold 23%, but 16K shares were added (mostly vesting), so the stake grew
23% · $350KDisclosed plan
Anthony Ashley
VP (President, CO2 and ETV)
Sold 5% of the shares held or received (after tax withholding) during the period†. No bar against the starting stake: most of these shares arrived during the period.
$256KNo plan disclosed
Amounts, filings and trading plans for each seller

Selling by month

Officers and directors, Oct 2025 to Oct 2026. Each sale is counted once: under a disclosed plan, else to cover taxes, else no plan disclosed.

Disclosed planTo cover taxesNo plan disclosed
OctNov 2025: $166K under a disclosed planNovDec 2025: $171K under a disclosed planDecJan 2026: $769K under a disclosed plan$769KJanFeb 2026: $186K under a disclosed planFeb 2026: $256K no plan disclosedFebMar 2026: $259K under a disclosed planMarApr 2026: $252K under a disclosed planAprMay 2026: $252K under a disclosed planMayJun 2026: $245K under a disclosed planJunJul 2026: $247K under a disclosed planJulAug 2026: $51K under a disclosed planAugSep 2026: $48K under a disclosed planSepOct

Common questions

Is the Kinder Morgan CEO selling stock?

No. Kimberly Dang reported no open-market sales in the past 12 months.

Why are Kinder Morgan insiders selling?

Filings rarely give a reason, and we don't guess at one. What they show is how the sales were made: 91% of sales by value ran under 10b5-1 trading plans disclosed in the filings and 9% had no disclosed plan. A trading plan schedules sales in advance.

Are any Kinder Morgan insiders buying?

Yes. 3 officers or directors reported 4 purchases in the past 12 months (Form 4 code P, which includes private purchases).

How much of their stake did Kinder Morgan insiders sell?

About 1.2% overall. As a group they ended with more shares than they started with. The biggest individual seller, John Schlosser, gave up 25% of starting holdings. These figures leave out Richard Kinder, the largest holder (most holdings were last confirmed in 2018). That covers the 12 months to Oct 8, 2026 and counts vested shares reported on SEC Forms 3, 4 and 5, which is not an insider's whole wealth.

The evidence

Who sold4 officers and directors: amount, % of holdings, trading plan
Who soldAmount% of holdingsTrading plan
John Schlosser
V.P. (President, Terminals)
$1.7M
55K shares
25%Disclosed plan
David Michels
VP and Chief Financial Officer
$600K
20K shares
9%†
i
† Most of the shares David Michels sold arrived during the period, so this is shares sold as a share of the 159K held at the start plus the 122K received, less 48K withheld by the company for taxes.
Disclosed plan
Michael Garthwaite
VP (Pres., Products Pipelines)
$350K
11K shares
23%Disclosed plan
Anthony Ashley
VP (President, CO2 and ETV)
$256K
8K shares
5%†
i
† Most of the shares Anthony Ashley sold arrived during the period, so this is shares sold as a share of the 108K held at the start plus the 104K received, less 40K withheld by the company for taxes.
No plan disclosed
The full ownership picture17 of 17 insiders fully reconciled · 17 officers and directors

Vested shares across all share classes, held directly and through trusts, LLCs and family members, as reported on SEC Forms 3, 4 and 5. Unvested awards and options are never counted as owned shares.

InsiderHeld Oct 8, 2025SoldHeld Oct 8, 2026Still held
Richard Kinder
!
Most of this insider's holdings were last confirmed in 2018. Confirmed in the last three years: 258,086,579 shares. Not confirmed since: 469,074,706 shares, left out of this row. "Still held" is not shown because it would cover only the smaller, confirmed part.
Executive Chairman, Director
257.09M0258.09Msee note
Vesting, gifts, unvested awards and holding lines for Richard Kinder
0shares vested or exercised
0gifted (net of own trusts)
none reportedunvested awards, start → end
  • Additional holdings last reported more than 3 years ago are shown separately and excluded from totals.
Held throughShare classOct 8, 2025Oct 8, 2026
DirectClass P Common Stock245,212,353246,212,353
Limited PartnershipClass P Common Stock11,812,74711,812,747
SpouseClass P Common Stock61,47961,479

Additional holdings last reported Sep 27, 2018, not confirmed since: 469,074,706 shares. Not included in any total or percentage on this page.

Kimberly Dang
i
Additional holdings last reported more than 3 years ago are shown separately and excluded from totals.
Chief Executive Officer, Director
2.86M03.24Mno sales
Vesting, gifts, unvested awards and holding lines for Kimberly Dang
+637Kshares vested or exercised
0gifted (net of own trusts)
−250Kwithheld by the company for taxes
1.60M → 1.36Munvested awards, start → end
  • Additional holdings last reported more than 3 years ago are shown separately and excluded from totals.
Held throughShare classOct 8, 2025Oct 8, 2026
DirectClass P Common Stock830,6011,216,943
Limited PartnershipClass P Common Stock2,026,0482,026,048

Additional holdings last reported Sep 14, 2012, not confirmed since: 2,232,620 shares. Not included in any total or percentage on this page.

Thomas Martin
President
1.28M01.28Mno sales
Vesting, gifts, unvested awards and holding lines for Thomas Martin
0shares vested or exercised
0gifted (net of own trusts)
none reportedunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectClass P Common Stock1,003,6811,003,681
TrustClass P Common Stock277,950277,950
James Holland
VP and COO
535K0615Kno sales
Vesting, gifts, unvested awards and holding lines for James Holland
+130Kshares vested or exercised
0gifted (net of own trusts)
−51Kwithheld by the company for taxes
335K → 204Kunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectClass P Common Stock535,477614,693
Dax Sanders
President
292K0369Kno sales
Vesting, gifts, unvested awards and holding lines for Dax Sanders
+130Kshares vested or exercised
−1.5Kgifted (net of own trusts)
−51Kwithheld by the company for taxes
347K → 316Kunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectClass P Common Stock292,000369,471
John Schlosser
V.P. (President, Terminals)
220K−55K164K75%
Vesting, gifts, unvested awards and holding lines for John Schlosser
0shares vested or exercised
0gifted (net of own trusts)
183K → 263Kunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectClass P Common Stock219,702164,208
David Michels
VP and Chief Financial Officer
159K−20K213Knot meaningful
Vesting, gifts, unvested awards and holding lines for David Michels
+122Kshares vested or exercised
0gifted (net of own trusts)
−48Kwithheld by the company for taxes
333K → 297Kunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectClass P Common Stock159,428213,383
Catherine James
VP and General Counsel
123K0166Kno sales
Vesting, gifts, unvested awards and holding lines for Catherine James
+69Kshares vested or exercised
0gifted (net of own trusts)
−27Kwithheld by the company for taxes
175K → 155Kunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectClass P Common Stock122,653165,338
401(k) PlanClass P Common Stock286286
SpouseClass P Common Stock7575
Anthony Ashley
VP (President, CO2 and ETV)
108K−8K164Knot meaningful
Vesting, gifts, unvested awards and holding lines for Anthony Ashley
+104Kshares vested or exercised
0gifted (net of own trusts)
−40Kwithheld by the company for taxes
278K → 240Kunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectClass P Common Stock108,146164,038
Kenneth Grubb
i
Started reporting during the period; starting holdings are from the Form 3.
VP and COO
66K066Kno sales
Vesting, gifts, unvested awards and holding lines for Kenneth Grubb
0shares vested or exercised
0gifted (net of own trusts)
133K → 133Kunvested awards, start → end
  • Started reporting during the period; starting holdings are from the Form 3.
Held throughShare classOct 8, 2025Oct 8, 2026
DirectClass P Common Stock66,32866,328
Michael Pitta
i
Minor difference of 500 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer).
VP and Chief Admin. Officer
66K077Kno sales
Vesting, gifts, unvested awards and holding lines for Michael Pitta
+14Kshares vested or exercised
0gifted (net of own trusts)
−3.5Kwithheld by the company for taxes
67K → 78Kunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectClass P Common Stock65,79177,236

Reconciliation: minor difference of 500 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer).

Kevin Grahmann
V.P., Corporate Development
59K086Kno sales
Vesting, gifts, unvested awards and holding lines for Kevin Grahmann
+41Kshares vested or exercised
0gifted (net of own trusts)
−14Kwithheld by the company for taxes
115K → 105Kunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectClass P Common Stock58,65385,587
Robert Vagt
Director
49K051Kno sales
Vesting, gifts, unvested awards and holding lines for Robert Vagt
0shares vested or exercised
0gifted (net of own trusts)
none reportedunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectClass P Common Stock49,18950,979
Michael Garthwaite
VP (Pres., Products Pipelines)
48K−11K49K+1.9%
Vesting, gifts, unvested awards and holding lines for Michael Garthwaite
+16Kshares vested or exercised
0gifted (net of own trusts)
−4.1Kwithheld by the company for taxes
74K → 120Kunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectClass P Common Stock47,94348,863
William Smith
Director
48K051Kno sales
Vesting, gifts, unvested awards and holding lines for William Smith
0shares vested or exercised
0gifted (net of own trusts)
none reportedunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectClass P Common Stock28,08731,087
SpouseClass P Common Stock19,58119,581
Amy Chronis
Director
35K048Kno sales
Vesting, gifts, unvested awards and holding lines for Amy Chronis
0shares vested or exercised
0gifted (net of own trusts)
none reportedunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectClass P Common Stock34,76448,001
Sital Mody
V.P. (Pres.,Nat Gas Pipelines)
0070Kno sales
Vesting, gifts, unvested awards and holding lines for Sital Mody
+116Kshares vested or exercised
0gifted (net of own trusts)
−46Kwithheld by the company for taxes
324K → 362Kunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectClass P Common Stock070,196

17 of 17 insiders fully reconciled: starting holdings plus reported transactions match ending holdings (16 exactly, 1 with a minor or footnoted difference). Percentages cover 13 of 17 officers and directors. Left out: Richard Kinder (most holdings were last confirmed in 2018); David Michels and Anthony Ashley (most of their shares vested during the period, so a percentage would mislead); Sital Mody (held no vested shares at the start). "Still held" compares ending with starting vested shares; a plus sign means the holding grew.

What explains the selling$2.9M of sales by plan status, purpose, seller and month

Officer and director open-market sales: $2.9M across 94,344 shares. Plan status and stated purpose are separate questions, and a sale can have both.

By plan status

The lighter segment is sales with no plan disclosed in the filing ($256K), including tax-related sales outside a plan.

No plan disclosed · $256K

Sales with no 10b5-1 plan and no tax reference in the filing. $256K of it is Anthony Ashley. No plan disclosed is a statement about the filing, not about why the sale happened. Largest such sale: Anthony Ashley, Feb 17, 2026

Taxes

533,861 shares ($17.2M) were withheld by the company for taxes, which isn't a market sale.

Purchases · 3 buyers (4 trades)

3 officers and directors bought shares in this period, in 4 trades(Form 4 code P). Across all their filings on record there are 106 purchase trades.

Charitable gifts · 1.5K shares

Gifts the filings describe as charitable. Gifts are not sales and are not included in the sale totals.

SellerShares soldProceedsUnder a disclosed planShare of totalSales dates
John Schlosser
V.P. (President, Terminals)
55K$1.7M100%58%Nov 10, 2025 to Jul 6, 2026
David Michels
VP and Chief Financial Officer
20K$600K100%21%Jan 22, 2026 to Jan 22, 2026
Michael Garthwaite
VP (Pres., Products Pipelines)
11K$350K100%12%Mar 16, 2026 to Sep 16, 2026
Anthony Ashley
VP (President, CO2 and ETV)
8K$256K0%9%Feb 17, 2026 to Feb 17, 2026

Sales by month

MonthSale proceedsDisclosed planTo cover taxesNo plan disclosed
Oct 2025$0$0$0$0
Nov 2025$166K$166K$0$0
Dec 2025$171K$171K$0$0
Jan 2026$769K$769K$0$0
Feb 2026$441K$186K$0$256K
Mar 2026$259K$259K$0$0
Apr 2026$252K$252K$0$0
May 2026$252K$252K$0$0
Jun 2026$245K$245K$0$0
Jul 2026$247K$247K$0$0
Aug 2026$51K$51K$0$0
Sep 2026$48K$48K$0$0
Oct 2026$0$0$0$0
Is this normal? Selling year by year5 earlier years to compare with

Less than usual: about one-fifth of the 5-year average. 4 insiders sold; the average is 4 a year.

12 months endingShares soldInsiders who soldProceeds
Oct 8, 2026
Latest 12 months
94K4$2.9M
Oct 8, 2025
1 year earlier
1.44M8$37.0M
Oct 8, 2024
2 years earlier
567K6$11.1M
Oct 9, 2023
3 years earlier
86K3$1.5M
Oct 9, 2022
4 years earlier
177K3$3.3M
Oct 9, 2021
5 years earlier
74K2$1.3M

Open-market sales (Form 4 code S) by people who were officers or directors, in split-adjusted shares. Earlier years include people who have since left. A sale that an outside holder also reports (a family trust, a fund) is counted with outside holders in every year. Shares, not dollars, are compared, so a change in the stock price doesn't look like a change in selling. Years the filings don't fully cover are shown but left out of the average.

Known gaps and uncertaintyEvery officer and director reconciles

Every officer and director reconciles for this period.

Michael Pitta: minor difference of 500 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer).

Inferred rename: "Limited Partnership" is treated as the same holder as "Family Limited Partnership", because the old name was never reported again and the new one opened with the same balance (1,957,784 shares). Old name, new name

Inferred typo: the share class "Class P. Common Stock" is treated as the same class as "Class P Common Stock" on 1 holding line, because the two spellings are nearly identical and each balance carried over exactly. Example (Richard Kinder, 231,688,110 shares): old title, new title

Inferred rename: the share class "COMMON STOCK" is treated as the same class as "Class P common stock" on 1 holding line, because the old title was never reported again on those lines and each balance carried over exactly. Example (James Street, 158,446 shares): old title, new title

Inferred rename: the share class "Shares" is treated as the same class as "Class P Common Stock" on 1 holding line, because the old title was never reported again on those lines and each balance carried over exactly. Example (Deborah Macdonald, 10,000 shares): old title, new title

Inferred rename: the share class "Common Stock" is treated as the same class as "Class P Common Stock" on 4 holding lines, because the old title was never reported again on those lines and each balance carried over exactly. Example (Dax Sanders, 202,605 shares): old title, new title

External context: we only cite outside events when a documented connection exists. None is shown for this period.

Sources and methodology678 filings from SEC EDGAR, and how we read them

All 678 Forms 3, 4 and 5 filed for Kinder Morgan (SEC CIK 1506307) from Feb 10, 2011 to Sep 18, 2026, retrieved from SEC EDGAR on Oct 8, 2026. Prices are the ones reported in each filing, often weighted averages. 1 filing was left out because Kinder Morgan filed them as an owner of another company's stock.

Holdings. Each holding line (a share class plus an owner, such as a trust or LLC) carries its last reported balance forward. Entities first reported during the period start at zero, so transfers between an insider's own trusts don't count as selling. Lines not reported for three years or more are listed separately and left out of totals.

Sales. A sale counts as under a 10b5-1 plan if its footnote cites one or the filing's Rule 10b5-1 box is checked, and as tax-related if its footnote cites tax obligations or sell-to-cover. Shares withheld by the company for taxes are listed separately. Sales with neither attribute are labeled "no plan disclosed".

Full methodology

Former or inactive filers (37)No filing in 18 months; last reported balances, not in any total
NameLast filedLast reported balance
Michael MorganFeb 20, 20253,715,528 shares, last reported balance as of Feb 19, 2025
Park ShaperOct 23, 202410,915,683 shares, last reported balance as of Oct 22, 2024
Joel StaffJan 17, 2024124,645 shares, last reported balance as of Jan 16, 2024
Steven KeanDec 15, 20237,366,062 shares, last reported balance as of Dec 14, 2023
Denise MathewsDec 7, 202380,978 shares, last reported balance as of Dec 6, 2023
Ted GardnerJan 19, 2023503,633 shares, last reported balance as of Jan 17, 2023
Jesse ArenivasMar 1, 202232,727 shares, last reported balance as of Mar 1, 2022
Deborah MacdonaldJan 20, 202250,608 shares, last reported balance as of Jan 18, 2022
Gary HultquistJan 20, 202242,513 shares, last reported balance as of Jan 18, 2022
Perry WaughtalAug 3, 2020299,293 shares, last reported balance as of Aug 3, 2020
Fayez SarofimNov 22, 201945,143,524 shares, last reported balance as of Nov 20, 2019
Adam FormanJan 11, 2019445,543 shares, last reported balance as of Jan 3, 2019
Ian AndersonSep 5, 201817,803 shares, last reported balance as of Dec 5, 2014
James MoffattJan 18, 2018No balance on record
Lisa ShorbJul 20, 2017248,671 shares, last reported balance as of Jul 16, 2016
Ronald Kuehn Jr.Nov 9, 2016146,006 shares, last reported balance as of Dec 5, 2014
David DeVeauJul 21, 2016354,132 shares, last reported balance as of Oct 30, 2015
Ronald McClainNov 23, 2015307,520 shares, last reported balance as of Nov 13, 2015
Arthur ReichstetterDec 12, 2014107,507 shares, last reported balance as of Dec 5, 2014
Michael MillerMar 21, 2014102,373,937 shares, last reported balance as of Mar 14, 2014
John StokesFeb 14, 2014102,373,937 shares, last reported balance as of Feb 6, 2014
James StreetDec 5, 20132,071,304 shares, last reported balance as of Dec 4, 2013
David KinderJan 9, 20132,446,145 shares, last reported balance as of Dec 26, 2012
Joseph ListengartJan 4, 20134,002,934 shares, last reported balance as of Dec 27, 2012
Henry CornellOct 19, 201284,586,269 shares, last reported balance as of Oct 17, 2012
Kenneth PontarelliOct 19, 201284,586,269 shares, last reported balance as of Oct 17, 2012
GSCP KMI Investors Offshore, LPOct 19, 201257,611,011 shares, last reported balance as of Oct 17, 2012
GOLDMAN SACHS GROUP INCOct 19, 201257,849,427 shares, last reported balance as of Oct 17, 2012
GS Capital Partners VI GmbH & Co KGOct 19, 201257,611,011 shares, last reported balance as of Oct 17, 2012
GS ADVISORS V, L.L.C.Oct 19, 201257,611,011 shares, last reported balance as of Oct 17, 2012
Anthony Hall Jr.Jun 4, 201247,260 shares, last reported balance as of May 30, 2012
LONE PINE CAPITAL LLCJun 1, 201217,624,581 shares, last reported balance as of May 25, 2012
Highstar Capital LPDec 12, 201182,114,453 shares, last reported balance as of Dec 9, 2011
C/R Energy GP III, LLCDec 12, 201177,645,704 shares, last reported balance as of Dec 9, 2011
TCG HOLDINGS LLCDec 12, 201183,134,170 shares, last reported balance as of Dec 9, 2011
Baran TekkoraNo balance on record
Glenn YoungkinNo balance on record