CLH

Clean Harbors INC

Insider trading activity for Clean Harbors INC, straight from SEC Form 4 filings. Net figures below count open-market buys and sales only — grants, option exercises and tax withholding are excluded because they are compensation, not decisions to trade.

Past 3 months

-$1.1M

net selling

Bought(0 · 0 insiders): $0
Sold(2 · 2 insiders): $1.1M

Past 6 months

-$1.1M

net selling

Bought(1 · 1 insiders): $135.8K
Sold(3 · 3 insiders): $1.3M

Past 12 months

-$63.3M

net selling

Bought(1 · 1 insiders): $135.8K
Sold(13 · 9 insiders): $63.4M

Transaction history

The 100 most recent Form 4 transactions.

Open in screener →

Insider transactions, newest first: date, security, transaction type, size and a link to the filing each row came from.
Date	Insider	Role	Type	Shares	Price	Value	Δ Own	Filing
Aug 14	Gerstenberg Eric W	Co-ceo	SSELL	2,500	$321.34	$803.4K	-4.2%	Open the original filing on SEC.gov
Aug 3	Robertson Andrea	Director	SSELL	789	$314.01	$247.8K	-8.1%	Open the original filing on SEC.gov
Jul 17	McKim Alan S	Exec Chair, CTO.	FTAX	1,265	$310.58	$392.9K	-4.0%	Open the original filing on SEC.gov
Jul 1	Gerstenberg Eric W	Co-ceo	FTAX↺	564	$290.74	$164K	-0.9%	Open the original filing on SEC.gov
Jul 1	Dugas Eric J.	EVP Chief Financial…	FTAX↺	447	$290.74	$130K	-2.5%	Open the original filing on SEC.gov
Jul 1	Curtis George L	Exec. Vice President…	FTAX	1,757	$290.74	$510.8K	-3.8%	Open the original filing on SEC.gov
Jul 1	Battles Michael Louis	Co-ceo	FTAX	1,032	$290.74	$300K	-1.1%	Open the original filing on SEC.gov
Jul 1	Geer Charles H. II	EVP, Industrial Services	FTAX	40	$290.74	$11.6K	-0.4%	Open the original filing on SEC.gov
Jul 1	Underwood Rebecca	President & EVP…	FTAX	311	$290.74	$90.4K	-1.7%	Open the original filing on SEC.gov
Jul 1	Gabriel Sharon M.	Evp/cio (chesi)	FTAX	359	$290.74	$104.4K	-1.7%	Open the original filing on SEC.gov
Jul 1	Weber Brian P	EVP (chesi)	FTAX	814	$290.74	$236.7K	-1.7%	Open the original filing on SEC.gov
Jul 1	McKim Alan S	Exec Chair, CTO.	FTAX	1,343	$290.74	$390.5K	-4.1%	Open the original filing on SEC.gov
Jun 1	Diderich Jeroen	EVP&President of…	FTAX	1,717	$281.00	$482.5K	-9.6%	Open the original filing on SEC.gov
May 26	States Lauren	Director	SSELL	789	$286.19	$225.8K	-6.5%	Open the original filing on SEC.gov
May 20	Polito Karyn	Director	AGRANT	652	—	—	+18.8%	Open the original filing on SEC.gov
May 20	Reed Marcy L.	Director	AGRANT	652	—	—	+12.8%	Open the original filing on SEC.gov
May 20	States Lauren	Director	AGRANT	652	—	—	+5.7%	Open the original filing on SEC.gov
May 20	Welch John R.	Director	AGRANT	652	—	—	+6.4%	Open the original filing on SEC.gov
May 20	Quirk Alison A.	Director	AGRANT	652	—	—	+21.9%	Open the original filing on SEC.gov
May 20	Stewart Shelley JR	Director	AGRANT	652	—	—	+16.8%	Open the original filing on SEC.gov
May 20	Willett Robert	Director	AGRANT	652	—	—	+7.0%	Open the original filing on SEC.gov
May 20	Robertson Andrea	Director	AGRANT	652	—	—	+7.1%	Open the original filing on SEC.gov
May 20	Galante Edward G	Director	AGRANT	652	—	—	+2.6%	Open the original filing on SEC.gov
May 20	Preston John T	Director	AGRANT	652	—	—	+10.2%	Open the original filing on SEC.gov
May 11	Robertson Andrea	Director	GGIFT	342	—	—	-3.6%	Open the original filing on SEC.gov
May 11	Polito Karyn	Director	PBUY↺★	460	$295.13	$135.8K	+15.3%	Open the original filing on SEC.gov
Mar 18	Gerstenberg Eric W	Co-ceo	SSELL↺	1,000	$293.00	$293K	-1.6%	Open the original filing on SEC.gov
Mar 18	Reed Marcy L.	Director	SSELL	836	$287.94	$240.7K	-14.1%	Open the original filing on SEC.gov
Mar 17	Weber Brian P	EVP (chesi)	SSELL	4,683	$293.39	$1.4M	-8.8%	Open the original filing on SEC.gov
Mar 13	Geer Charles H. II	EVP, Industrial Services	DTOISS	139	—	—	-1.3%	Open the original filing on SEC.gov
Mar 13	Underwood Rebecca	President & EVP…	DTOISS	1,401	—	—	-7.0%	Open the original filing on SEC.gov
Mar 13	Underwood Rebecca	President & EVP…	FTAX	125	$288.93	$36.1K	-0.6%	Open the original filing on SEC.gov
Mar 13	Harrison Robert W.	EVP, Ehs	DTOISS	368	—	—	-5.3%	Open the original filing on SEC.gov
Mar 13	Harrison Robert W.	EVP, Ehs	FTAX	18	$288.93	$5.2K	-0.3%	Open the original filing on SEC.gov
Mar 13	Gabriel Sharon M.	Evp/cio (chesi)	DTOISS	1,401	—	—	-6.2%	Open the original filing on SEC.gov
Mar 13	Gabriel Sharon M.	Evp/cio (chesi)	FTAX	727	$288.93	$210.1K	-3.1%	Open the original filing on SEC.gov
Mar 13	Weber Brian P	EVP (chesi)	DTOISS	1,869	—	—	-3.4%	Open the original filing on SEC.gov
Mar 13	Weber Brian P	EVP (chesi)	FTAX	960	$288.93	$277.4K	-1.7%	Open the original filing on SEC.gov
Mar 13	Curtis George L	Exec. Vice President…	DTOISS	1,028	—	—	-2.2%	Open the original filing on SEC.gov
Mar 13	Curtis George L	Exec. Vice President…	FTAX	350	$288.93	$101.1K	-0.7%	Open the original filing on SEC.gov
Mar 13	McKim Alan S	Exec Chair, CTO.	FTAX	1,265	$288.93	$365.5K	-3.7%	Open the original filing on SEC.gov
Mar 13	Battles Michael Louis	Co-ceo	DTOISS	2,166	—	—	-2.2%	Open the original filing on SEC.gov
Mar 13	Battles Michael Louis	Co-ceo	FTAX	1,148	$288.93	$331.7K	-1.2%	Open the original filing on SEC.gov
Mar 13	Gerstenberg Eric W	Co-ceo	DTOISS↺	2,166	—	—	-3.4%	Open the original filing on SEC.gov
Mar 13	Gerstenberg Eric W	Co-ceo	FTAX↺	977	$288.93	$282.3K	-1.5%	Open the original filing on SEC.gov
Mar 13	Dugas Eric J.	EVP Chief Financial…	DTOISS↺	1,324	—	—	-6.8%	Open the original filing on SEC.gov
Mar 13	Dugas Eric J.	EVP Chief Financial…	FTAX↺	630	$288.93	$182K	-3.1%	Open the original filing on SEC.gov
Mar 4	McKim Alan S	Exec Chair, CTO.	SSELL	100,000	$292.65	$29.3M	-4.6%	Open the original filing on SEC.gov
Feb 23	Gerstenberg Eric W	Co-ceo	SSELL↺	2,500	$279.86	$699.7K	-3.8%	Open the original filing on SEC.gov
Feb 20	Gabriel Sharon M.	Evp/cio (chesi)	SSELL	3,540	$282.07	$998.5K	-13.2%	Open the original filing on SEC.gov
Feb 20	Dugas Eric J.	EVP Chief Financial…	SSELL↺	2,788	$281.31	$784.3K	-12.2%	Open the original filing on SEC.gov
Feb 19	Welch John R.	Director	SSELL	750	$273.07	$204.8K	-6.8%	Open the original filing on SEC.gov
Feb 19	McKim Alan S	Exec Chair, CTO.	GGIFT	10,000	—	—	-0.4%	Open the original filing on SEC.gov
Feb 19	McKim Alan S	Exec Chair, CTO.	SSELL	100,000	$281.14	$28.1M	-4.2%	Open the original filing on SEC.gov
Feb 2	Geer Charles H. II	EVP, Industrial Services	FTAX	197	$259.91	$51.2K	-2.2%	Open the original filing on SEC.gov
Feb 2	Diderich Jeroen	EVP&President of…	FTAX	105	$259.91	$27.3K	-0.8%	Open the original filing on SEC.gov
Feb 2	Underwood Rebecca	President & EVP…	FTAX	425	$259.91	$110.5K	-2.5%	Open the original filing on SEC.gov
Feb 2	Harrison Robert W.	EVP, Ehs	FTAX	184	$259.91	$47.8K	-3.2%	Open the original filing on SEC.gov
Feb 2	Gabriel Sharon M.	Evp/cio (chesi)	FTAX	508	$259.91	$132K	-1.9%	Open the original filing on SEC.gov
Feb 2	Dugas Eric J.	EVP Chief Financial…	FTAX	567	$259.91	$147.4K	-2.9%	Open the original filing on SEC.gov
Feb 2	Weber Brian P	EVP (chesi)	FTAX	1,394	$259.91	$362.3K	-2.6%	Open the original filing on SEC.gov
Feb 2	Curtis George L	Exec. Vice President…	FTAX	249	$259.91	$64.7K	-0.5%	Open the original filing on SEC.gov
Feb 2	Gerstenberg Eric W	Co-ceo	FTAX	4,934	$259.91	$1.3M	-9.8%	Open the original filing on SEC.gov
Feb 2	Battles Michael Louis	Co-ceo	FTAX	5,205	$259.91	$1.4M	-6.3%	Open the original filing on SEC.gov
Feb 1	Geer Charles H. II	EVP, Industrial Services	AGRANT	503	—	—	+4.8%	Open the original filing on SEC.gov
Feb 1	Geer Charles H. II	EVP, Industrial Services	AGRANT	1,843	—	—	+21.4%	Open the original filing on SEC.gov
Feb 1	Diderich Jeroen	EVP&President of…	AGRANT	1,047	—	—	+6.2%	Open the original filing on SEC.gov
Feb 1	Diderich Jeroen	EVP&President of…	AGRANT	3,141	—	—	+23.0%	Open the original filing on SEC.gov
Feb 1	Underwood Rebecca	President & EVP…	AGRANT	838	—	—	+4.3%	Open the original filing on SEC.gov
Feb 1	Underwood Rebecca	President & EVP…	AGRANT	2,513	—	—	+14.9%	Open the original filing on SEC.gov
Feb 1	Harrison Robert W.	EVP, Ehs	AGRANT	430	—	—	+6.5%	Open the original filing on SEC.gov
Feb 1	Harrison Robert W.	EVP, Ehs	AGRANT	1,003	—	—	+17.9%	Open the original filing on SEC.gov
Feb 1	Gabriel Sharon M.	Evp/cio (chesi)	AGRANT	566	—	—	+2.0%	Open the original filing on SEC.gov
Feb 1	Gabriel Sharon M.	Evp/cio (chesi)	AGRANT	2,073	—	—	+7.8%	Open the original filing on SEC.gov
Feb 1	Dugas Eric J.	EVP Chief Financial…	AGRANT	1,022	—	—	+4.7%	Open the original filing on SEC.gov
Feb 1	Dugas Eric J.	EVP Chief Financial…	AGRANT	3,066	—	—	+16.4%	Open the original filing on SEC.gov
Feb 1	Weber Brian P	EVP (chesi)	AGRANT	1,056	—	—	+1.9%	Open the original filing on SEC.gov
Feb 1	Weber Brian P	EVP (chesi)	AGRANT	3,166	—	—	+6.1%	Open the original filing on SEC.gov
Feb 1	Gerstenberg Eric W	Co-ceo	AGRANT	10,690	—	—	+19.1%	Open the original filing on SEC.gov
Feb 1	Gerstenberg Eric W	Co-ceo	AGRANT	10,290	—	—	+22.6%	Open the original filing on SEC.gov
Feb 1	Battles Michael Louis	Co-ceo	AGRANT	10,690	—	—	+12.2%	Open the original filing on SEC.gov
Feb 1	Battles Michael Louis	Co-ceo	AGRANT	10,290	—	—	+13.2%	Open the original filing on SEC.gov
Jan 2	Gabriel Sharon M.	Evp/cio (chesi)	FTAX	525	$234.48	$123.1K	-1.9%	Open the original filing on SEC.gov
Dec 17, 2025	Welch John R.	Director	GGIFT	415	—	—	-3.6%	Open the original filing on SEC.gov
Dec 16, 2025	Gerstenberg Eric W	Co-ceo	SSELL	601	$240.90	$144.8K	-1.2%	Open the original filing on SEC.gov
Dec 15, 2025	Geer Charles H. II	EVP, Industrial Services	FTAX	28	$240.71	$6.7K	-0.3%	Open the original filing on SEC.gov
Dec 15, 2025	Underwood Rebecca	President & EVP…	FTAX	51	$240.71	$12.3K	-0.3%	Open the original filing on SEC.gov
Dec 15, 2025	Harrison Robert W.	EVP, Ehs	FTAX	16	$240.71	$3.9K	-0.3%	Open the original filing on SEC.gov
Dec 9, 2025	Curtis George L	Exec. Vice President…	GGIFT	1,000	—	—	-2.1%	Open the original filing on SEC.gov
Dec 1, 2025	Harrison Robert W.	EVP, Ehs	FTAX	122	$228.54	$27.9K	-2.1%	Open the original filing on SEC.gov
Nov 13, 2025	States Lauren	Director	GGIFT	245	—	—	-2.1%	Open the original filing on SEC.gov
Nov 1, 2025	Geer Charles H. II	EVP, Industrial Services	FTAX	294	$210.51	$61.9K	-3.2%	Open the original filing on SEC.gov
Sep 16, 2025	McKim Alan S	Exec Chair, CTO.	GGIFT	4,283	—	—	-0.2%	Open the original filing on SEC.gov
Sep 16, 2025	McKim Alan S	Exec Chair, CTO.	GGIFT	8,567	—	—	-0.4%	Open the original filing on SEC.gov
Aug 5, 2025	Robertson Andrea	Director	GGIFT	430	—	—	-4.3%	Open the original filing on SEC.gov
Aug 1, 2025	Battles Michael Louis	Co-ceo	PBUY	2,000	$233.50	$467K	+2.5%	Open the original filing on SEC.gov
Jul 31, 2025	Robertson Andrea	Director	SSELL	836	$233.64	$195.3K	-7.8%	Open the original filing on SEC.gov
Jul 1, 2025	Underwood Rebecca	President & EVP…	FTAX	1,051	$229.55	$241.3K	-5.7%	Open the original filing on SEC.gov
Jul 1, 2025	Gerstenberg Eric W	Co-ceo	FTAX	564	$229.55	$129.5K	-1.1%	Open the original filing on SEC.gov
Jul 1, 2025	Curtis George L	Exec. Vice President…	FTAX	399	$229.55	$91.6K	-0.8%	Open the original filing on SEC.gov

SSELL$803.4K

Gerstenberg Eric W · Co-ceoAug 14

2,500 sh @ $321.34 · -4.2% own

SSELL$247.8K

Robertson Andrea · DirectorAug 3

789 sh @ $314.01 · -8.1% own

FTAX$392.9K

McKim Alan S · Exec Chair, CTO.Jul 17

1,265 sh @ $310.58 · -4.0% own

FTAX↺$164K

Gerstenberg Eric W · Co-ceoJul 1

564 sh @ $290.74 · -0.9% own

FTAX↺$130K

Dugas Eric J. · EVP Chief Financia…Jul 1

447 sh @ $290.74 · -2.5% own

FTAX$510.8K

Curtis George L · Exec. Vice Preside…Jul 1

1,757 sh @ $290.74 · -3.8% own

FTAX$300K

Battles Michael Louis · Co-ceoJul 1

1,032 sh @ $290.74 · -1.1% own

FTAX$11.6K

Geer Charles H. II · EVP, Industrial…Jul 1

40 sh @ $290.74 · -0.4% own

FTAX$90.4K

Underwood Rebecca · President & EVP…Jul 1

311 sh @ $290.74 · -1.7% own

FTAX$104.4K

Gabriel Sharon M. · Evp/cio (chesi)Jul 1

359 sh @ $290.74 · -1.7% own

FTAX$236.7K

Weber Brian P · EVP (chesi)Jul 1

814 sh @ $290.74 · -1.7% own

FTAX$390.5K

McKim Alan S · Exec Chair, CTO.Jul 1

1,343 sh @ $290.74 · -4.1% own

FTAX$482.5K

Diderich Jeroen · EVP&President of…Jun 1

1,717 sh @ $281.00 · -9.6% own

SSELL$225.8K

States Lauren · DirectorMay 26

789 sh @ $286.19 · -6.5% own

AGRANT—

Polito Karyn · DirectorMay 20

652 sh · +18.8% own

AGRANT—

Reed Marcy L. · DirectorMay 20

652 sh · +12.8% own

AGRANT—

States Lauren · DirectorMay 20

652 sh · +5.7% own

AGRANT—

Welch John R. · DirectorMay 20

652 sh · +6.4% own

AGRANT—

Quirk Alison A. · DirectorMay 20

652 sh · +21.9% own

AGRANT—

Stewart Shelley JR · DirectorMay 20

652 sh · +16.8% own

AGRANT—

Willett Robert · DirectorMay 20

652 sh · +7.0% own

AGRANT—

Robertson Andrea · DirectorMay 20

652 sh · +7.1% own

AGRANT—

Galante Edward G · DirectorMay 20

652 sh · +2.6% own

AGRANT—

Preston John T · DirectorMay 20

652 sh · +10.2% own

GGIFT—

Robertson Andrea · DirectorMay 11

342 sh · -3.6% own

PBUY↺★$135.8K

Polito Karyn · DirectorMay 11

460 sh @ $295.13 · +15.3% own

SSELL↺$293K

Gerstenberg Eric W · Co-ceoMar 18

1,000 sh @ $293.00 · -1.6% own

SSELL$240.7K

Reed Marcy L. · DirectorMar 18

836 sh @ $287.94 · -14.1% own

SSELL$1.4M

Weber Brian P · EVP (chesi)Mar 17

4,683 sh @ $293.39 · -8.8% own

DTOISS—

Geer Charles H. II · EVP, Industrial…Mar 13

139 sh · -1.3% own

DTOISS—

Underwood Rebecca · President & EVP…Mar 13

1,401 sh · -7.0% own

FTAX$36.1K

Underwood Rebecca · President & EVP…Mar 13

125 sh @ $288.93 · -0.6% own

DTOISS—

Harrison Robert W. · EVP, EhsMar 13

368 sh · -5.3% own

FTAX$5.2K

Harrison Robert W. · EVP, EhsMar 13

18 sh @ $288.93 · -0.3% own

DTOISS—

Gabriel Sharon M. · Evp/cio (chesi)Mar 13

1,401 sh · -6.2% own

FTAX$210.1K

Gabriel Sharon M. · Evp/cio (chesi)Mar 13

727 sh @ $288.93 · -3.1% own

DTOISS—

Weber Brian P · EVP (chesi)Mar 13

1,869 sh · -3.4% own

FTAX$277.4K

Weber Brian P · EVP (chesi)Mar 13

960 sh @ $288.93 · -1.7% own

DTOISS—

Curtis George L · Exec. Vice Preside…Mar 13

1,028 sh · -2.2% own

FTAX$101.1K

Curtis George L · Exec. Vice Preside…Mar 13

350 sh @ $288.93 · -0.7% own

FTAX$365.5K

McKim Alan S · Exec Chair, CTO.Mar 13

1,265 sh @ $288.93 · -3.7% own

DTOISS—

Battles Michael Louis · Co-ceoMar 13

2,166 sh · -2.2% own

FTAX$331.7K

Battles Michael Louis · Co-ceoMar 13

1,148 sh @ $288.93 · -1.2% own

DTOISS↺—

Gerstenberg Eric W · Co-ceoMar 13

2,166 sh · -3.4% own

FTAX↺$282.3K

Gerstenberg Eric W · Co-ceoMar 13

977 sh @ $288.93 · -1.5% own

DTOISS↺—

Dugas Eric J. · EVP Chief Financia…Mar 13

1,324 sh · -6.8% own

FTAX↺$182K

Dugas Eric J. · EVP Chief Financia…Mar 13

630 sh @ $288.93 · -3.1% own

SSELL$29.3M

McKim Alan S · Exec Chair, CTO.Mar 4

100,000 sh @ $292.65 · -4.6% own

SSELL↺$699.7K

Gerstenberg Eric W · Co-ceoFeb 23

2,500 sh @ $279.86 · -3.8% own

SSELL$998.5K

Gabriel Sharon M. · Evp/cio (chesi)Feb 20

3,540 sh @ $282.07 · -13.2% own

SSELL↺$784.3K

Dugas Eric J. · EVP Chief Financia…Feb 20

2,788 sh @ $281.31 · -12.2% own

SSELL$204.8K

Welch John R. · DirectorFeb 19

750 sh @ $273.07 · -6.8% own

GGIFT—

McKim Alan S · Exec Chair, CTO.Feb 19

10,000 sh · -0.4% own

SSELL$28.1M

McKim Alan S · Exec Chair, CTO.Feb 19

100,000 sh @ $281.14 · -4.2% own

FTAX$51.2K

Geer Charles H. II · EVP, Industrial…Feb 2

197 sh @ $259.91 · -2.2% own

FTAX$27.3K

Diderich Jeroen · EVP&President of…Feb 2

105 sh @ $259.91 · -0.8% own

FTAX$110.5K

Underwood Rebecca · President & EVP…Feb 2

425 sh @ $259.91 · -2.5% own

FTAX$47.8K

Harrison Robert W. · EVP, EhsFeb 2

184 sh @ $259.91 · -3.2% own

FTAX$132K

Gabriel Sharon M. · Evp/cio (chesi)Feb 2

508 sh @ $259.91 · -1.9% own

FTAX$147.4K

Dugas Eric J. · EVP Chief Financia…Feb 2

567 sh @ $259.91 · -2.9% own

FTAX$362.3K

Weber Brian P · EVP (chesi)Feb 2

1,394 sh @ $259.91 · -2.6% own

FTAX$64.7K

Curtis George L · Exec. Vice Preside…Feb 2

249 sh @ $259.91 · -0.5% own

FTAX$1.3M

Gerstenberg Eric W · Co-ceoFeb 2

4,934 sh @ $259.91 · -9.8% own

FTAX$1.4M

Battles Michael Louis · Co-ceoFeb 2

5,205 sh @ $259.91 · -6.3% own

AGRANT—

Geer Charles H. II · EVP, Industrial…Feb 1

503 sh · +4.8% own

AGRANT—

Geer Charles H. II · EVP, Industrial…Feb 1

1,843 sh · +21.4% own

AGRANT—

Diderich Jeroen · EVP&President of…Feb 1

1,047 sh · +6.2% own

AGRANT—

Diderich Jeroen · EVP&President of…Feb 1

3,141 sh · +23.0% own

AGRANT—

Underwood Rebecca · President & EVP…Feb 1

838 sh · +4.3% own

AGRANT—

Underwood Rebecca · President & EVP…Feb 1

2,513 sh · +14.9% own

AGRANT—

Harrison Robert W. · EVP, EhsFeb 1

430 sh · +6.5% own

AGRANT—

Harrison Robert W. · EVP, EhsFeb 1

1,003 sh · +17.9% own

AGRANT—

Gabriel Sharon M. · Evp/cio (chesi)Feb 1

566 sh · +2.0% own

AGRANT—

Gabriel Sharon M. · Evp/cio (chesi)Feb 1

2,073 sh · +7.8% own

AGRANT—

Dugas Eric J. · EVP Chief Financia…Feb 1

1,022 sh · +4.7% own

AGRANT—

Dugas Eric J. · EVP Chief Financia…Feb 1

3,066 sh · +16.4% own

AGRANT—

Weber Brian P · EVP (chesi)Feb 1

1,056 sh · +1.9% own

AGRANT—

Weber Brian P · EVP (chesi)Feb 1

3,166 sh · +6.1% own

AGRANT—

Gerstenberg Eric W · Co-ceoFeb 1

10,690 sh · +19.1% own

AGRANT—

Gerstenberg Eric W · Co-ceoFeb 1

10,290 sh · +22.6% own

AGRANT—

Battles Michael Louis · Co-ceoFeb 1

10,690 sh · +12.2% own

AGRANT—

Battles Michael Louis · Co-ceoFeb 1

10,290 sh · +13.2% own

FTAX$123.1K

Gabriel Sharon M. · Evp/cio (chesi)Jan 2

525 sh @ $234.48 · -1.9% own

GGIFT—

Welch John R. · DirectorDec 17, 2025

415 sh · -3.6% own

SSELL$144.8K

Gerstenberg Eric W · Co-ceoDec 16, 2025

601 sh @ $240.90 · -1.2% own

FTAX$6.7K

Geer Charles H. II · EVP, Industrial…Dec 15, 2025

28 sh @ $240.71 · -0.3% own

FTAX$12.3K

Underwood Rebecca · President & EVP…Dec 15, 2025

51 sh @ $240.71 · -0.3% own

FTAX$3.9K

Harrison Robert W. · EVP, EhsDec 15, 2025

16 sh @ $240.71 · -0.3% own

GGIFT—

Curtis George L · Exec. Vice Preside…Dec 9, 2025

1,000 sh · -2.1% own

FTAX$27.9K

Harrison Robert W. · EVP, EhsDec 1, 2025

122 sh @ $228.54 · -2.1% own

GGIFT—

States Lauren · DirectorNov 13, 2025

245 sh · -2.1% own

FTAX$61.9K

Geer Charles H. II · EVP, Industrial…Nov 1, 2025

294 sh @ $210.51 · -3.2% own

GGIFT—

McKim Alan S · Exec Chair, CTO.Sep 16, 2025

4,283 sh · -0.2% own

GGIFT—

McKim Alan S · Exec Chair, CTO.Sep 16, 2025

8,567 sh · -0.4% own

GGIFT—

Robertson Andrea · DirectorAug 5, 2025

430 sh · -4.3% own

PBUY$467K

Battles Michael Louis · Co-ceoAug 1, 2025

2,000 sh @ $233.50 · +2.5% own

SSELL$195.3K

Robertson Andrea · DirectorJul 31, 2025

836 sh @ $233.64 · -7.8% own

FTAX$241.3K

Underwood Rebecca · President & EVP…Jul 1, 2025

1,051 sh @ $229.55 · -5.7% own

FTAX$129.5K

Gerstenberg Eric W · Co-ceoJul 1, 2025

564 sh @ $229.55 · -1.1% own

FTAX$91.6K

Curtis George L · Exec. Vice Preside…Jul 1, 2025

399 sh @ $229.55 · -0.8% own

Filing record

How quickly insiders here report their trades. Section 16 allows two business days from the transaction.

3 of 85 filings we hold were filed after the two-business-day deadline. The furthest past the deadline was 27 business days late.

Form 4 filings made after the two-business-day deadline, with the transaction date, the filing date and the number of business days between them.
Traded	Filed	Insider	Past deadline	Largest line	Source
Jul 1	Aug 12	Battles Michael LouisCo-ceo	27days	$300K	Filing ↗
Jul 1	Aug 10	Curtis George LExec. Vice President (chesi)	25days	$510.8K	Filing ↗
Dec 17, 2025	Dec 28, 2025	Welch John R.Director	4days	—	Filing ↗

Battles Michael LouisCo-ceo

27days

Traded Jul 1 · filed Aug 12Filing ↗

Curtis George LExec. Vice President (chesi)

25days

Traded Jul 1 · filed Aug 10Filing ↗

Welch John R.Director

4days

Traded Dec 17, 2025 · filed Dec 28, 2025Filing ↗

Counted in business days from the transaction date, or the deemed execution date where the filing reports one, excluding weekends and federal holidays. How this is measured · All late filings

Insiders at this company

Everyone who has filed a Form 4 for this issuer.

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