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NYSE · CIK 0001509991

KOS Kosmos Energy Ltd.

Insider trading from SEC Form 4. Last filing May 29, 2026. Close $2.64 on Oct 9, 2026, +203% from the 52-week low and -19% from the high.

Kosmos Energy Ltd. (KOS) has 30 SEC Form 4 filings on file from 12 insiders, the latest filed on May 29, 2026. No insider bought or sold on the open market in the last 90 days; rows filed in that time are grants, exercises, tax withholding and other transactions that carry no view on the price.

19 open-market trades have been scored at KOS. The newest: Roy A. Franklin (director) sold $119k of stock on May 28, 2026, filed May 29, 2026, scored 30 (weak). The largest of the 19 shown: Adebayo O. Ogunlesi (director) bought $6.0M on Mar 10, 2026, scored 65 (notable). 4 insiders bought within 14 days of each other around Mar 10, 2026.

KOS closed at $2.64 on Oct 9, 2026, 203% above its 52-week low and 19% below its 52-week high.

15 Form 144 notices of planned sales are on file, the latest filed Jun 5, 2025.

Last 90 days

Net insider value
$0
no open-market trades
Buys
0
$0 by 0 insiders
Sells
0
$0 by 0 insiders
Insiders on file
12
with a Form 4 at this company

Price and insider trades, last year

KOSOct 9, 2026 · close 2.64

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™

Signals

Open-market buys and sells at Kosmos Energy Ltd., scored.

ScoreInsiderValueHoldingsPrice contextFiled
30WeakRoy A. Franklin
director
sell
$119k
43,466 shares
-22%+215% from low-16% from high
62NotableAndrew G Inglis
Chairman and CEO
buy
$600k
315,790 shares
+7%+177% from low-6% from high
54ModerateNealesh D. Shah
SVP and CFO
buy
$300k
157,894 shares
+9%+177% from low-6% from high
46ModerateJ Michael Stice
director
buy
$100k
52,631 shares
+34%+177% from low-6% from high
65NotableAdebayo O. Ogunlesi
director
buy
$6.0M
3,157,895 shares
+174%+177% from low-6% from high
15WeakRonald W. Glass
VP & Chief Accounting Officer
sell
$31k
22,598 shares
-6%+59% from low-60% from high
32WeakAndrew G Inglis
Chairman and CEO
sell
$205k
148,182 shares
-3%+59% from low-60% from high
27WeakNealesh D. Shah
SVP and CFO
sell
$110k
79,124 shares
-4%+59% from low-60% from high
20WeakJosh R. Marion
SVP and General Counsel
sell
$32k
22,940 shares
-11%+59% from low-60% from high
12WeakJohn Douglas Kelso Grant
director
sell
$51k
27,923 shares
-48%+16% from low-61% from high
36WeakChristopher James Ball
SVP, Chief Commercial Officer
sell
$696k
223,482 shares
-12%-
18WeakRonald W. Glass
VP & Chief Accounting Officer
sell
$65k
20,733 shares
-6%-
43ModerateAndrew G Inglis
Chairman and CEO
sell
$865k
277,691 shares
-7%-
35WeakNealesh D. Shah
SVP and CFO
sell
$487k
156,206 shares
-9%-
23WeakJosh R. Marion
SVP and General Counsel
sell
$65k
20,733 shares
-12%-
17WeakRonald W. Glass
VP & Chief Accounting Officer
sell
$50k
16,182 shares
-5%-
34WeakAndrew G Inglis
Chairman and CEO
sell
$320k
102,701 shares
-2%-
29WeakNealesh D. Shah
SVP and CFO
sell
$178k
56,987 shares
-3%-
17WeakJosh R. Marion
SVP and General Counsel
sell
$50k
16,144 shares
-9%-

Planned sales

Form 144 notices filed before a sale of restricted or control stock, newest first. The sale itself usually reaches a Form 4 within days. All planned sales

FiledSellerSharesValueSale datePast 3 months
Jun 5, 2025 Grant John Douglas Kelso
Director
27,923
0.01% of outstanding
$51kJun 5, 2025none
Feb 5, 2025 Ball Christopher James
Officer
84,898
0.02% of outstanding
$265kFeb 5, 2025$432k
Feb 5, 2025 Glass Ronald W.
Officer
10,354
0.00% of outstanding
$32kFeb 5, 2025$83k
Feb 5, 2025 INGLIS ANDREW G
Officer, Director
138,689
0.03% of outstanding
$433kFeb 5, 2025$753k
Feb 5, 2025 Shah Nealesh D.
Officer
78,015
0.02% of outstanding
$244kFeb 5, 2025$421k
Feb 5, 2025 Marion Josh R.
Officer
10,354
0.00% of outstanding
$32kFeb 5, 2025$83k
Feb 4, 2025 Ball Christopher James
Officer
138,584
0.03% of outstanding
$432kFeb 4, 2025none
Feb 4, 2025 Glass Ronald W.
Officer
10,379
0.00% of outstanding
$32kFeb 4, 2025$50k
Feb 4, 2025 INGLIS ANDREW G
Officer, Director
139,002
0.03% of outstanding
$433kFeb 4, 2025$320k
Feb 4, 2025 Marion Josh R.
Officer
10,379
0.00% of outstanding
$32kFeb 4, 2025$50k
Feb 4, 2025 Shah Nealesh D.
Officer
78,191
0.02% of outstanding
$244kFeb 4, 2025$178k
Feb 3, 2025 Glass Ronald W.
Officer
16,182
0.00% of outstanding
$50kFeb 3, 2025none
Feb 3, 2025 INGLIS ANDREW G
Officer, Director
102,701
0.02% of outstanding
$320kFeb 3, 2025none
Feb 3, 2025 Marion Josh R.
Officer
16,144
0.00% of outstanding
$50kFeb 3, 2025none
Feb 3, 2025 Shah Nealesh D.
Officer
56,987
0.01% of outstanding
$178kFeb 3, 2025none

Transactions

The newest 50 of 57 rows filed, every code.

DateInsiderTransactionSharesPriceValueHoldings afterFiled
May 27, 2026Roy A. Franklin
director
FTax withholding
Common Stock
-976$2.85$2,782194,188May 29, 2026
May 28, 2026Roy A. Franklin
director
SOpen-market sale
Common Stock
-43,466$2.73$119k150,722May 29, 2026
May 28, 2026Roy A. Franklin
director
AGrant or award
Common Stock
+62,044$2.74$170k212,766May 29, 2026
Mar 10, 2026J Michael Stice
director
POpen-market purchase
Common Stock
+52,631$1.90$100k207,620Mar 12, 2026
Mar 10, 2026Nealesh D. Shah
SVP and CFO
POpen-market purchase
Common Stock
+157,894$1.90$300k1,863,061Mar 12, 2026
Mar 10, 2026Andrew G Inglis
Chairman and CEO
POpen-market purchase
Common Stock
+315,790$1.90$600k4,542,807Mar 12, 2026
Mar 10, 2026Adebayo O. Ogunlesi
director
POpen-market purchase
Common Stock
+3,157,895$1.90$6.0M4,974,184Mar 12, 2026
Feb 3, 2026Nealesh D. Shah
SVP and CFO
AGrant or award
Common Stock10b5-1
+65,567$0.00$01,784,291Feb 5, 2026
Feb 3, 2026Josh R. Marion
SVP and General Counsel
AGrant or award
Common Stock10b5-1
+7,661$0.00$0217,065Feb 5, 2026
Feb 3, 2026Ronald W. Glass
VP & Chief Accounting Officer
AGrant or award
Common Stock10b5-1
+7,732$0.00$0362,230Feb 5, 2026
Feb 3, 2026Andrew G Inglis
Chairman and CEO
AGrant or award
Common Stock10b5-1
+118,539$0.00$04,375,199Feb 5, 2026
Feb 3, 2026Josh R. Marion
SVP and General Counsel
SOpen-market sale
Common Stock10b5-1
-19,656$1.37$27k197,409Feb 5, 2026
Feb 3, 2026Nealesh D. Shah
SVP and CFO
SOpen-market sale
Common Stock10b5-1
-54,434$1.37$75k1,729,857Feb 5, 2026
Feb 3, 2026Ronald W. Glass
VP & Chief Accounting Officer
SOpen-market sale
Common Stock10b5-1
-19,285$1.37$26k342,945Feb 5, 2026
Feb 3, 2026Andrew G Inglis
Chairman and CEO
SOpen-market sale
Common Stock10b5-1
-103,554$1.37$142k4,271,645Feb 5, 2026
Feb 4, 2026Nealesh D. Shah
SVP and CFO
SOpen-market sale
Common Stock10b5-1
-24,690$1.42$35k1,705,167Feb 5, 2026
Feb 4, 2026Andrew G Inglis
Chairman and CEO
SOpen-market sale
Common Stock10b5-1
-44,628$1.42$63k4,227,017Feb 5, 2026
Feb 4, 2026Josh R. Marion
SVP and General Counsel
SOpen-market sale
Common Stock10b5-1
-3,284$1.42$4,663194,125Feb 5, 2026
Feb 4, 2026Ronald W. Glass
VP & Chief Accounting Officer
SOpen-market sale
Common Stock10b5-1
-3,313$1.42$4,704339,632Feb 5, 2026
Jan 31, 2026Andrew G Inglis
Chairman and CEO
AGrant or award
Common Stock10b5-1
+297,660$0.00$04,256,660Feb 3, 2026
Jan 31, 2026Ronald W. Glass
VP & Chief Accounting Officer
AGrant or award
Common Stock10b5-1
+55,000$0.00$0354,498Feb 3, 2026
Jan 31, 2026Nealesh D. Shah
SVP and CFO
AGrant or award
Common Stock10b5-1
+163,350$0.00$01,718,724Feb 3, 2026
Jan 31, 2026Josh R. Marion
SVP and General Counsel
AGrant or award
Common Stock10b5-1
+58,080$0.00$0209,404Feb 3, 2026
Jun 4, 2025Roy A. Franklin
director
FTax withholding
Common Stock
-299$1.81$54198,573Jun 6, 2025
Jun 4, 2025John Douglas Kelso Grant
director
FTax withholding
Common Stock10b5-1
-275$1.81$49857,844Jun 6, 2025
Jun 5, 2025Deanna L Goodwin
director
AGrant or award
Common Stock
+96,591$1.76$170k226,319Jun 6, 2025
Jun 5, 2025Steven Sterin
director
AGrant or award
Common Stock
+96,591$1.76$170k369,931Jun 6, 2025
Jun 5, 2025J Michael Stice
director
AGrant or award
Common Stock
+96,591$1.76$170k154,989Jun 6, 2025
Jun 5, 2025Hanssen Maria Moraeus
director
AGrant or award
Common Stock
+96,591$1.76$170k161,650Jun 6, 2025
Jun 5, 2025Adebayo O. Ogunlesi
director
AGrant or award
Common Stock
+96,591$1.76$170k1,816,289Jun 6, 2025
Jun 5, 2025Roy A. Franklin
director
AGrant or award
Common Stock
+96,591$1.76$170k195,164Jun 6, 2025
Jun 5, 2025John Douglas Kelso Grant
director
SOpen-market sale
Common Stock10b5-1
-27,923$1.81$51k29,921Jun 6, 2025
Jun 5, 2025John Douglas Kelso Grant
director
AGrant or award
Common Stock10b5-1
+96,591$1.76$170k126,512Jun 6, 2025
Feb 4, 2025Christopher James Ball
SVP, Chief Commercial Officer
SOpen-market sale
Common Stock10b5-1
-138,584$3.11$431k1,724,823Feb 6, 2025
Feb 4, 2025Ronald W. Glass
VP & Chief Accounting Officer
SOpen-market sale
Common Stock10b5-1
-10,379$3.11$32k309,852Feb 6, 2025
Feb 4, 2025Andrew G Inglis
Chairman and CEO
SOpen-market sale
Common Stock10b5-1
-139,002$3.11$432k4,097,689Feb 6, 2025
Feb 4, 2025Nealesh D. Shah
SVP and CFO
SOpen-market sale
Common Stock10b5-1
-78,191$3.11$243k1,633,389Feb 6, 2025
Feb 4, 2025Josh R. Marion
SVP and General Counsel
SOpen-market sale
Common Stock10b5-1
-10,379$3.11$32k161,678Feb 6, 2025
Feb 5, 2025Christopher James Ball
SVP, Chief Commercial Officer
SOpen-market sale
Common Stock10b5-1
-84,898$3.12$265k1,639,925Feb 6, 2025
Feb 5, 2025Ronald W. Glass
VP & Chief Accounting Officer
SOpen-market sale
Common Stock10b5-1
-10,354$3.12$32k299,498Feb 6, 2025
Feb 5, 2025Andrew G Inglis
Chairman and CEO
SOpen-market sale
Common Stock10b5-1
-138,689$3.12$433k3,959,000Feb 6, 2025
Feb 5, 2025Nealesh D. Shah
SVP and CFO
SOpen-market sale
Common Stock10b5-1
-78,015$3.12$243k1,555,374Feb 6, 2025
Feb 5, 2025Josh R. Marion
SVP and General Counsel
SOpen-market sale
Common Stock10b5-1
-10,354$3.12$32k151,324Feb 6, 2025
Jan 31, 2025Andrew G Inglis
Chairman and CEO
AGrant or award
Common Stock10b5-1
+270,600$0.00$03,647,416Feb 4, 2025
Jan 31, 2025Josh R. Marion
SVP and General Counsel
AGrant or award
Common Stock10b5-1
+52,800$0.00$0136,561Feb 4, 2025
Jan 31, 2025Nealesh D. Shah
SVP and CFO
AGrant or award
Common Stock10b5-1
+148,500$0.00$01,379,330Feb 4, 2025
Jan 31, 2025Christopher James Ball
SVP, Chief Commercial Officer
AGrant or award
Common Stock
+99,525$0.00$01,508,769Feb 4, 2025
Jan 31, 2025Ronald W. Glass
VP & Chief Accounting Officer
AGrant or award
Common Stock10b5-1
+50,000$0.00$0284,773Feb 4, 2025
Jan 31, 2025Andrew G Inglis
Chairman and CEO
AGrant or award
Common Stock10b5-1
+691,976$0.00$04,339,392Feb 4, 2025
Jan 31, 2025Ronald W. Glass
VP & Chief Accounting Officer
AGrant or award
Common Stock10b5-1
+51,640$0.00$0336,413Feb 4, 2025
50 of 57 rows shown.

Insiders

Everyone who has filed a Form 4 here.

Questions about KOS

Answered from the filings on this page, as of the latest one.

Are insiders buying KOS?

No. In the last 90 days no insider at Kosmos Energy Ltd. bought or sold shares on the open market according to SEC Form 4 filings. The rows on file from that period are grants, exercises, tax withholding or other transactions, which carry no view on the price.

Who was the last insider to trade KOS on the open market?

Roy A. Franklin (director) sold $119k of KOS on May 28, 2026 and filed the Form 4 on May 29, 2026. InsiderTell scored 30 (weak).

How many insiders file Form 4 at Kosmos Energy Ltd.?

12 people have filed a Form 4 at Kosmos Energy Ltd., among them Christopher James Ball (SVP, Chief Commercial Officer), Roy A. Franklin (director), Deanna L Goodwin (director). Officers, directors and holders of more than 10% of a share class must report their trades within two business days.

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.

KOS insider trading: Kosmos Energy Ltd. | InsiderTell