Keizer Henry R.

Director at MONTPELIER RE HOLDINGS LTD · on record since Nov 26, 2013
Director at SEALED AIR CORP/DE · on record since Apr 9, 2026
Director at GRAFTECH INTERNATIONAL LTD · on record since May 11, 2026
Director at WABCO Holdings Inc. · on record since Jul 22, 2015
Director at HERC HOLDINGS INC · on record since Oct 16, 2015

Insider trading activity of Keizer Henry R.

Transactions on record: 82; since Nov 22, 2013

Open-market buys: 9; $250.3K

Open-market sells: 2; $85.1K

Companies traded: 6; last filing May 11, 2026

Figures computed from official regulatory filings — .

Companies where Keizer Henry R. has traded

GRAFTECH INTERNATIONAL LTD19 tx · May 11, 2026
SEALED AIR CORP/DE13 tx · $85.8K · Apr 9, 2026
HERTZ GLOBAL HOLDINGS, INC26 tx · $288.2K · Jul 2, 2021
WABCO Holdings Inc.8 tx · $658.2K · May 29, 2020
HERC HOLDINGS INC2 tx · May 20, 2016
MONTPELIER RE HOLDINGS LTD14 tx · $819.8K · Aug 3, 2015

Track record of Keizer Henry R.

Open-market buys: 9

Last buy: Mar 11, 2025

Enough buys on record, but none of them has a 63-day return yet — this happens when the shares stopped trading, or when the buys are too recent. Win rates will appear once returns mature.

Transaction history of Keizer Henry R.

Co-insiders of Keizer Henry R.

This page republishes public regulatory disclosures.

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
GRAFTECH INTERNATIONAL LTDListing on record	May 11, 2026	AwardD (derivative)	11,173.18	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
SEALED AIR CORP/DEListing unverified	Apr 9, 2026	Other	-43,015	—	n/a (No price was disclosed in the filing)		SEC
SEALED AIR CORP/DEListing unverified	Jun 2, 2025	Award	8,015	—	n/a (No price was disclosed in the filing)		SEC
GRAFTECH INTERNATIONAL LTDListing on record	May 12, 2025	AwardD (derivative)	140,252.45	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
SEALED AIR CORP/DEListing unverified	Mar 11, 2025	Buy	1,120	30.00 USD	$33.6K	conv 43First in 12mo	SEC
SEALED AIR CORP/DEListing unverified	May 28, 2024	Award	6,952	—	n/a (No price was disclosed in the filing)		SEC
GRAFTECH INTERNATIONAL LTDListing on record	May 10, 2024	AwardD (derivative)	56,497.18	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
GRAFTECH INTERNATIONAL LTDListing on record	Nov 13, 2023	Exercise	23,970.91	—	n/a (No price was disclosed in the filing)		SEC
GRAFTECH INTERNATIONAL LTDListing on record	Nov 13, 2023	ExerciseD (derivative)	-23,970.91	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	Unusual size	SEC
GRAFTECH INTERNATIONAL LTDListing on record	Jul 5, 2023	AwardD (derivative)	39.88	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
GRAFTECH INTERNATIONAL LTDListing on record	Jul 5, 2023	AwardD (derivative)	47.47	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
SEALED AIR CORP/DEListing unverified	May 22, 2023	Award	6,165	—	n/a (No price was disclosed in the filing)		SEC
GRAFTECH INTERNATIONAL LTDListing on record	May 11, 2023	AwardD (derivative)	23,923.45	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
GRAFTECH INTERNATIONAL LTDListing on record	Apr 3, 2023	AwardD (derivative)	35.2	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
GRAFTECH INTERNATIONAL LTDListing on record	Apr 3, 2023	AwardD (derivative)	2,957.82	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
GRAFTECH INTERNATIONAL LTDListing on record	Jan 4, 2023	AwardD (derivative)	5,646.01	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
GRAFTECH INTERNATIONAL LTDListing on record	Jan 4, 2023	AwardD (derivative)	24.03	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
GRAFTECH INTERNATIONAL LTDListing on record	Oct 3, 2022	AwardD (derivative)	15.4	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
GRAFTECH INTERNATIONAL LTDListing on record	Oct 3, 2022	AwardD (derivative)	4,785.38	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
SEALED AIR CORP/DEListing unverified	Aug 29, 2022	Buy	500	55.25 USD	$27.6K	conv 38ClusterFirst in 12mo	SEC
GRAFTECH INTERNATIONAL LTDListing on record	Jul 5, 2022	AwardD (derivative)	5.25	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
GRAFTECH INTERNATIONAL LTDListing on record	Jul 5, 2022	AwardD (derivative)	2,917.26	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
SEALED AIR CORP/DEListing unverified	May 31, 2022	Award	3,567	—	n/a (No price was disclosed in the filing)		SEC
GRAFTECH INTERNATIONAL LTDListing on record	Apr 4, 2022	AwardD (derivative)	2,143.97	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
GRAFTECH INTERNATIONAL LTDListing on record	Apr 4, 2022	AwardD (derivative)	1.63	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
GRAFTECH INTERNATIONAL LTDListing on record	May 11, 2026	AwardD (derivative)	11,173.18	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
SEALED AIR CORP/DEListing unverified	Apr 9, 2026	Other	-43,015	—	n/a (No price was disclosed in the filing)		SEC
SEALED AIR CORP/DEListing unverified	Jun 2, 2025	Award	8,015	—	n/a (No price was disclosed in the filing)		SEC
GRAFTECH INTERNATIONAL LTDListing on record	May 12, 2025	AwardD (derivative)	140,252.45	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
SEALED AIR CORP/DEListing unverified	Mar 11, 2025	Buy	1,120	30.00 USD	$33.6K	conv 43First in 12mo	SEC
SEALED AIR CORP/DEListing unverified	May 28, 2024	Award	6,952	—	n/a (No price was disclosed in the filing)		SEC
GRAFTECH INTERNATIONAL LTDListing on record	May 10, 2024	AwardD (derivative)	56,497.18	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
GRAFTECH INTERNATIONAL LTDListing on record	Nov 13, 2023	Exercise	23,970.91	—	n/a (No price was disclosed in the filing)		SEC
GRAFTECH INTERNATIONAL LTDListing on record	Nov 13, 2023	ExerciseD (derivative)	-23,970.91	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))	Unusual size	SEC
GRAFTECH INTERNATIONAL LTDListing on record	Jul 5, 2023	AwardD (derivative)	39.88	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
GRAFTECH INTERNATIONAL LTDListing on record	Jul 5, 2023	AwardD (derivative)	47.47	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
SEALED AIR CORP/DEListing unverified	May 22, 2023	Award	6,165	—	n/a (No price was disclosed in the filing)		SEC
GRAFTECH INTERNATIONAL LTDListing on record	May 11, 2023	AwardD (derivative)	23,923.45	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
GRAFTECH INTERNATIONAL LTDListing on record	Apr 3, 2023	AwardD (derivative)	35.2	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
GRAFTECH INTERNATIONAL LTDListing on record	Apr 3, 2023	AwardD (derivative)	2,957.82	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
GRAFTECH INTERNATIONAL LTDListing on record	Jan 4, 2023	AwardD (derivative)	5,646.01	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
GRAFTECH INTERNATIONAL LTDListing on record	Jan 4, 2023	AwardD (derivative)	24.03	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
GRAFTECH INTERNATIONAL LTDListing on record	Oct 3, 2022	AwardD (derivative)	15.4	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
GRAFTECH INTERNATIONAL LTDListing on record	Oct 3, 2022	AwardD (derivative)	4,785.38	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
SEALED AIR CORP/DEListing unverified	Aug 29, 2022	Buy	500	55.25 USD	$27.6K	conv 38ClusterFirst in 12mo	SEC
GRAFTECH INTERNATIONAL LTDListing on record	Jul 5, 2022	AwardD (derivative)	5.25	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
GRAFTECH INTERNATIONAL LTDListing on record	Jul 5, 2022	AwardD (derivative)	2,917.26	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
SEALED AIR CORP/DEListing unverified	May 31, 2022	Award	3,567	—	n/a (No price was disclosed in the filing)		SEC
GRAFTECH INTERNATIONAL LTDListing on record	Apr 4, 2022	AwardD (derivative)	2,143.97	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
GRAFTECH INTERNATIONAL LTDListing on record	Apr 4, 2022	AwardD (derivative)	1.63	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC