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APAAPA Corporation · Insider ownership research

APA Corporation insiders sold $1.2M 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, Matthew Bob, sold shares equal to 78% of starting holdings, but more shares were added, so the stake grew.

Updated Oct 8, 2026 from SEC filings · covers Oct 9, 2025 to Oct 8, 2026
How this comparesMore of their stake sold than at 81 of the 311 other companies we can measure (#231 of 312)See ranking
0
buyers among officers and directors, past 12 months
0%
of sales were under disclosed trading plans, past 12 months
2 of 17
officers and directors sold shares, past 12 months
Recent activity · past 30 days, Sep 9, 2026 to Oct 8, 2026

No officer or director trades were reported for the past 30 days. The most recent before that:

May 26, 2026Tracey Henderson had 2K shares ($74K) withheld by the company for taxes (not a market sale). That is 1.7% of the total stake held that day.
WhoSharesPrice% of total stakeTotal stake afterTrade dateFiled
Tracey Henderson
Executive VP Exploration
1,968$37.501.7%112KMay 26, 2026May 27, 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? In line with the past 4 years. 2 insiders sold; the average is 0 a year. Year by year
Latest filing: Filed Oct 1 for a stock award on Sep 30. Chansoo Joung received an award of 1.2K shares. Filing
80 SEC ownership filings in the period · See the evidence

What stands out

Matthew Bob sold 23K shares (78% of starting holdings), but 24K more shares were added, so the stake grew (from 30K to 30K).Largest sale, Mar 18, 2026
Tax withholding outweighed market sales: the company withheld $1.6M of officers' and directors' shares for taxes, against $1.2M sold on the open market. The largest was John Christmann ($662K withheld).Largest withholding, Feb 1, 2026

Percentages cover 9 of 17 officers and directors. 8 are left out

i
Left out: Mark Maddox and Kenneth Fisher (holdings couldn't be fully reconciled); Annell Bay, Lamar McKay, Peter Ragauss, Charles Hooper, David Stover and Anya Weaving (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
Matthew Bob
Director
78% · $833KNo plan disclosed
Mark Maddox
Executive VP - Administration
No bar: holdings couldn't be fully reconciled.
$392KNo 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
OctNovDecJanFebMar 2026: $833K no plan disclosed$833KMarAprMay 2026: $392K no plan disclosedMayJunJulAugSepOct

Common questions

Is the APA Corporation CEO selling stock?

No. John Christmann reported no open-market sales in the past 12 months.

Why are APA Corporation insiders selling?

Filings rarely give a reason, and we don't guess at one. What they show is how the sales were made: 0% of sales by value ran under 10b5-1 trading plans disclosed in the filings and 100% had no disclosed plan. A trading plan schedules sales in advance.

Are any APA Corporation insiders buying?

No. Officers and directors reported no purchases in the past 12 months.

How much of their stake did APA Corporation insiders sell?

About 1.2% overall. As a group they ended with more shares than they started with. The biggest individual seller, Matthew Bob, sold shares equal to 78% of starting holdings, but more shares were added, so the stake grew. 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 sold2 officers and directors: amount, % of holdings, trading plan
Who soldAmount% of holdingsTrading plan
Matthew Bob
Director
$833K
23K shares
78%No plan disclosed
Mark Maddox
Executive VP - Administration
$392K
9.8K shares
i
No percentage: holdings couldn't be fully reconciled.
No plan disclosed
The full ownership picture15 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
John Christmann
i
Minor difference of 1,813 shares. Difference is under 0.5% of holdings.
CEO, Director
1.12M01.12Mno sales
Vesting, gifts, unvested awards and holding lines for John Christmann
0shares vested or exercised
0gifted (net of own trusts)
−26Kwithheld by the company for taxes
69K → 138Kunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectCommon Stock603,843639,249
NQ PlanCommon Stock200,860200,860
JJC V 1998 TrustCommon Stock11,18313,152
CAC 1998 TrustCommon Stock11,18313,152
CEC 2003 TrustCommon Stock11,18313,152
401(k) PlanCommon Stock2,8872,887
JJC IV 1984 TrustCommon Stock1,6851,768
DirectRestricted Stock / Units280,403239,556

Stock options (not counted as shares):

Options heldStrike priceExpiresIntrinsic value (estimate)
199,579$23.68Jan 9, 2035$3.3M
194,666$23.88Jan 6, 2036$3.1M

Estimate: options held × ($40.04 − strike price), using the most recent insider trade price on Form 4 (May 20, 2026), not a market close.

Reconciliation: minor difference of 1,813 shares. Difference is under 0.5% of holdings.

Stephen Riney
President
437K0441Kno sales
Vesting, gifts, unvested awards and holding lines for Stephen Riney
0shares vested or exercised
0gifted (net of own trusts)
−14Kwithheld by the company for taxes
none reportedunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectCommon Stock18,88921,564
Lisa Riney 2016 Family TrustCommon Stock175,701194,589
NQ PlanCommon Stock94,68294,682
DirectRestricted Stock / Units147,680129,967

Stock options (not counted as shares):

Options heldStrike priceExpiresIntrinsic value (estimate)
113,564$23.68Jan 9, 2035$1.9M
110,769$23.88Jan 6, 2036$1.8M

Estimate: options held × ($40.04 − strike price), using the most recent insider trade price on Form 4 (May 20, 2026), not a market close.

Chansoo Joung
i
Minor difference of 102,346 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer).
Director
140K0247Kno sales
Vesting, gifts, unvested awards and holding lines for Chansoo Joung
0shares vested or exercised
0gifted (net of own trusts)
97K → 197Kunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectCommon Stock140,285246,547
DirectRestricted Stock / Units00

Reconciliation: minor difference of 102,346 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer).

Mark Maddox
!
Holdings couldn't be fully reconciled. Balance changed with no matching transaction and no footnote: +2,175.385 shares on Jan 4, 2026 (NQ Plan). See the filing Sales and other transactions for Mark Maddox are complete.
Executive VP - Administration
n/a−9.8Kn/an/a
Vesting, gifts, unvested awards and holding lines for Mark Maddox
0shares vested or exercised
0gifted (net of own trusts)
−5.7Kwithheld by the company for taxes
0 → 22Kunvested awards, start → end

Holdings couldn't be fully reconciled. Balance changed with no matching transaction and no footnote: +2,175.385 shares on Jan 4, 2026 (NQ Plan). The balances below are as reported, not verified totals.

Held throughShare classOct 8, 2025Oct 8, 2026
DirectCommon Stock67,88266,810
NQ PlanCommon Stock2,6684,844
DirectRestricted Stock / Units60,95954,041

Stock options (not counted as shares):

Options heldStrike priceExpiresIntrinsic value (estimate)
46,004$23.68Jan 9, 2035$753K
44,871$23.88Jan 6, 2036$725K

Estimate: options held × ($40.04 − strike price), using the most recent insider trade price on Form 4 (May 20, 2026), not a market close.

Tracey Henderson
Executive VP Exploration
109K0112Kno sales
Vesting, gifts, unvested awards and holding lines for Tracey Henderson
0shares vested or exercised
0gifted (net of own trusts)
−8.1Kwithheld by the company for taxes
none reportedunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectCommon Stock41,32953,758
DirectRestricted Stock / Units67,51757,968

Stock options (not counted as shares):

Options heldStrike priceExpiresIntrinsic value (estimate)
46,004$23.68Jan 9, 2035$753K
44,871$23.88Jan 6, 2036$725K

Estimate: options held × ($40.04 − strike price), using the most recent insider trade price on Form 4 (May 20, 2026), not a market close.

Ben Rodgers
EVP and CFO
64K070Kno sales
Vesting, gifts, unvested awards and holding lines for Ben Rodgers
0shares vested or exercised
0gifted (net of own trusts)
−4.1Kwithheld by the company for taxes
none reportedunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectCommon Stock35,01641,257
DirectRestricted Stock / Units28,71628,867

Stock options (not counted as shares):

Options heldStrike priceExpiresIntrinsic value (estimate)
31,545$23.68Jan 9, 2035$516K
44,871$23.88Jan 6, 2036$725K

Estimate: options held × ($40.04 − strike price), using the most recent insider trade price on Form 4 (May 20, 2026), not a market close.

Matthew Bob
i
Minor difference of 22,409 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer).
Director
30K−23K30K+2%
Vesting, gifts, unvested awards and holding lines for Matthew Bob
0shares vested or exercised
0gifted (net of own trusts)
13K → 29Kunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectCommon Stock023,587
DirectCommon Stock, par value $0.625 per share29,6346,634
DirectRestricted Stock / Units00

Reconciliation: minor difference of 22,409 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer).

Robert Rayphole
i
Minor difference of 46 shares. Difference is under 0.5% of holdings. Started reporting during the period; starting holdings are from the Form 3.
VP CAO & Controller
29K035Kno sales
Vesting, gifts, unvested awards and holding lines for Robert Rayphole
0shares vested or exercised
0gifted (net of own trusts)
−1.1Kwithheld by the company for taxes
0 → 1.6Kunvested awards, start → end
  • Started reporting during the period; starting holdings are from the Form 3.
Held throughShare classOct 8, 2025Oct 8, 2026
DirectCommon Stock16,89118,274
Trustee NQ PlanCommon Stock1,4891,535
DirectRestricted Stock / Units10,85015,288

Stock options (not counted as shares):

Options heldStrike priceExpiresIntrinsic value (estimate)
16,384$23.88Jan 6, 2036$265K

Estimate: options held × ($40.04 − strike price), using the most recent insider trade price on Form 4 (May 20, 2026), not a market close.

Reconciliation: minor difference of 46 shares. Difference is under 0.5% of holdings.

Kimberly Warnica
EVP, CLO & Secretary
18K034Kno sales
Vesting, gifts, unvested awards and holding lines for Kimberly Warnica
0shares vested or exercised
0gifted (net of own trusts)
−2.6Kwithheld by the company for taxes
none reportedunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectCommon Stock03,365
DirectRestricted Stock / Units17,94530,284

Stock options (not counted as shares):

Options heldStrike priceExpiresIntrinsic value (estimate)
46,004$24.38Jan 13, 2035$720K
44,871$23.88Jan 6, 2036$725K

Estimate: options held × ($40.04 − strike price), using the most recent insider trade price on Form 4 (May 20, 2026), not a market close.

Juliet Ellis
i
Minor difference of 74,617 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer).
Director
12K091Kno sales
Vesting, gifts, unvested awards and holding lines for Juliet Ellis
0shares vested or exercised
0gifted (net of own trusts)
70K → 143Kunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectCommon Stock12,43690,969
DirectRestricted Stock / Units00

Reconciliation: minor difference of 74,617 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer).

Annell Bay
i
Minor difference of 101,609 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer).
Director
00106Kno sales
Vesting, gifts, unvested awards and holding lines for Annell Bay
0shares vested or exercised
0gifted (net of own trusts)
96K → 196Kunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectCommon Stock0105,525
DirectRestricted Stock / Units00

Reconciliation: minor difference of 101,609 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer).

Lamar McKay
i
Minor difference of 51,954 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer).
Director
0058Kno sales
Vesting, gifts, unvested awards and holding lines for Lamar McKay
0shares vested or exercised
0gifted (net of own trusts)
47K → 98Kunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectCommon Stock057,827
DirectRestricted Stock / Units00

Reconciliation: minor difference of 51,954 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer).

Peter Ragauss
i
Minor difference of 99,733 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer).
Director
00104Kno sales
Vesting, gifts, unvested awards and holding lines for Peter Ragauss
0shares vested or exercised
0gifted (net of own trusts)
95K → 192Kunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectCommon Stock0103,649
DirectRestricted Stock / Units00

Reconciliation: minor difference of 99,733 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer).

Charles Hooper
i
Minor difference of 29,158 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer).
Director
0033Kno sales
Vesting, gifts, unvested awards and holding lines for Charles Hooper
0shares vested or exercised
0gifted (net of own trusts)
26K → 55Kunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectCommon Stock033,074
DirectRestricted Stock / Units00

Reconciliation: minor difference of 29,158 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer).

David Stover
i
Minor difference of 28,864 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer).
Director
0033Kno sales
Vesting, gifts, unvested awards and holding lines for David Stover
0shares vested or exercised
0gifted (net of own trusts)
26K → 54Kunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectCommon Stock032,780
DirectRestricted Stock / Units00

Reconciliation: minor difference of 28,864 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer).

Anya Weaving
i
Minor difference of 15,991 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer).
Director
0020Kno sales
Vesting, gifts, unvested awards and holding lines for Anya Weaving
0shares vested or exercised
0gifted (net of own trusts)
13K → 29Kunvested awards, start → end
Held throughShare classOct 8, 2025Oct 8, 2026
DirectCommon Stock019,907
DirectRestricted Stock / Units00

Reconciliation: minor difference of 15,991 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer).

Kenneth Fisher
!
Holdings couldn't be fully reconciled. Balance changed without a matching transaction, and the footnote does not state the amount: +11,184 shares on Mar 31, 2026 (Direct). See the filing Sales and other transactions for Kenneth Fisher are complete.
Director
n/a0n/an/a
Vesting, gifts, unvested awards and holding lines for Kenneth Fisher
0shares vested or exercised
0gifted (net of own trusts)
8.9K → 20Kunvested awards, start → end

Holdings couldn't be fully reconciled. Balance changed without a matching transaction, and the footnote does not state the amount: +11,184 shares on Mar 31, 2026 (Direct). The balances below are as reported, not verified totals.

Held throughShare classOct 8, 2025Oct 8, 2026
DirectCommon Stock015,260
DirectRestricted Stock / Units00

15 of 17 insiders fully reconciled: starting holdings plus reported transactions match ending holdings (4 exactly, 11 with a minor or footnoted difference). For 2 we show sales but not holdings; the ! icon on their rows explains why. Percentages cover 9 of 17 officers and directors. Left out: Mark Maddox and Kenneth Fisher (holdings couldn't be fully reconciled); Annell Bay, Lamar McKay, Peter Ragauss, Charles Hooper, David Stover and Anya Weaving (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$1.2M of sales by plan status, purpose, seller and month

Officer and director open-market sales: $1.2M across 32,800 shares. Plan status and stated purpose are separate questions, and a sale can have both.

By plan status

No plan disclosed · $1.2M

Sales with no 10b5-1 plan and no tax reference in the filing. $833K of it is Matthew Bob. No plan disclosed is a statement about the filing, not about why the sale happened. Largest such sale: Matthew Bob, Mar 18, 2026

Taxes

61,191 shares ($1.6M) were withheld by the company for taxes, which isn't a market sale.

SellerShares soldProceedsUnder a disclosed planShare of totalSales dates
Matthew Bob
Director
23K$833K0%68%Mar 18, 2026 to Mar 18, 2026
Mark Maddox
Executive VP - Administration
9.8K$392K0%32%May 20, 2026 to May 20, 2026

Sales by month

MonthSale proceedsDisclosed planTo cover taxesNo plan disclosed
Oct 2025$0$0$0$0
Nov 2025$0$0$0$0
Dec 2025$0$0$0$0
Jan 2026$0$0$0$0
Feb 2026$0$0$0$0
Mar 2026$833K$0$0$833K
Apr 2026$0$0$0$0
May 2026$392K$0$0$392K
Jun 2026$0$0$0$0
Jul 2026$0$0$0$0
Aug 2026$0$0$0$0
Sep 2026$0$0$0$0
Oct 2026$0$0$0$0
Is this normal? Selling year by year4 earlier years to compare with

In line with the past 4 years. 2 insiders sold; the average is 0 a year.

12 months endingShares soldInsiders who soldProceeds
Oct 8, 2026
Latest 12 months
33K2$1.2M
Oct 8, 2025
1 year earlier
00$0
Oct 8, 2024
2 years earlier
00$0
Oct 9, 2023
3 years earlier
00$0
Oct 9, 2022
4 years earlier
140K2$5.6M
Oct 9, 2021
5 years earlier · filings don't cover the whole year
55K2$1.1M

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 uncertainty2 insiders whose holdings couldn't be fully reconciled

Mark Maddox: holdings couldn't be fully reconciled (difference of 2,175 shares). Balance changed with no matching transaction and no footnote: +2,175.385 shares on Jan 4, 2026 (NQ Plan). Filing, Jan 4, 2026

Kenneth Fisher: holdings couldn't be fully reconciled (difference of 11,344 shares). Balance changed without a matching transaction, and the footnote does not state the amount: +11,184 shares on Mar 31, 2026 (Direct). Filing, Mar 31, 2026

Footnote: "Restricted stock units granted to each of APA's non-employee directors under the 2016 Omnibus Compensation Plan, which immediately vest and are automatically deferred under the deferred compensation provisions of APA's Outside Directors' Deferral Program (the "ODDP"). | The reporting person has reported prior awards of restricted stock units and automatic deferrals in the form of phantom stock units in Table II of Form 4. The total reported in Column 5 includes 1,178 newly deferred phantom stock units, 11,088 phantom stock units previously reported in Table II, and 96 phantom stock units accru"

John Christmann: minor difference of 1,813 shares. Difference is under 0.5% of holdings.

Chansoo Joung: minor difference of 102,346 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer).

Matthew Bob: minor difference of 22,409 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer).

Robert Rayphole: minor difference of 46 shares. Difference is under 0.5% of holdings.

Juliet Ellis: minor difference of 74,617 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer).

Annell Bay: minor difference of 101,609 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer).

Lamar McKay: minor difference of 51,954 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer).

Peter Ragauss: minor difference of 99,733 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer).

Charles Hooper: minor difference of 29,158 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer).

David Stover: minor difference of 28,864 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer).

Anya Weaving: minor difference of 15,991 shares. Difference is stated in footnotes (unreported vesting, exempt acquisition or transfer).

Inferred rename: "Trustee NQ Plan" is treated as the same holder as "NQ Plan", because the old name was never reported again and the new one opened with the same balance (38,987 shares). Old name, new name

Inferred rename: "Trustee NQ Plan" is treated as the same holder as "NQ Plan", because the old name was never reported again and the new one opened with the same balance (2,132 shares). Old name, new name

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

Sources and methodology618 filings from SEC EDGAR, and how we read them

All 618 Forms 3, 4 and 5 filed for APA Corporation (SEC CIK 1841666) from Mar 12, 2021 to Oct 1, 2026, retrieved from SEC EDGAR on Oct 8, 2026. Prices are the ones reported in each filing, often weighted averages.

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 (9)No filing in 18 months; last reported balances, not in any total
NameLast filedLast reported balance
Rebecca HoytFeb 7, 2025162,030 shares, last reported balance as of Feb 5, 2025
Clay BretchesFeb 7, 2025148,975 shares, last reported balance as of Feb 5, 2025
Amy NelsonMay 24, 2024No balance on record
Daniel RabunMay 24, 2024No balance on record
David PursellFeb 5, 2024249,857 shares, last reported balance as of Feb 1, 2024
Anthony LannieFeb 5, 2024232,958 shares, last reported balance as of Feb 1, 2024
John LoweAug 23, 2022No balance on record
William MontgomeryApr 4, 2022No balance on record
Rene JoyceMay 24, 2021No balance on record