William Hartzel Emergent Bio Solutions Inc. (EBS) insider trading activity

William Hartzel is SVP, Bioservices of Emergent BioSolutions Inc.. Currently has a direct ownership of 103,082 shares of EBS, which is worth approximately $1.04 Million. The most recent transaction as insider was on Nov 11, 2025, when has been sold 610 shares (Common Stock) at a price of $10.88 per share, resulting in proceeds of $6,636. This information was disclosed in a Form 4 filing with the Securities and Exchange Commission (SEC).

Shares Held (Direct Ownership) 103K

0.59% 3M change

117.13% 12M change

Total Value Held $1.04 Million

William Hartzel Transaction History

Date	Transaction	Value	Shares Traded	Shares Held
Nov 11 2025	SELL Payment of exercise price or tax liability	$6,636 $10.88 p/Share	610 Reduced 0.59%	103,082 Common Stock
Jul 11 2025	SELL Payment of exercise price or tax liability	$31,375 $7.36 p/Share	4,263 Reduced 3.95%	103,692 Common Stock
Jun 08 2025	SELL Payment of exercise price or tax liability	$7,737 $6.63 p/Share	1,167 Reduced 1.07%	107,955 Common Stock
Apr 07 2025	SELL Payment of exercise price or tax liability	$2,490 $4.44 p/Share	561 Reduced 0.51%	109,122 Common Stock
Mar 06 2025	BUY Grant, award, or other acquisition	-	62,500 Added 36.24%	109,975 Common Stock
Mar 05 2025	SELL Payment of exercise price or tax liability	$1,693 $5.8 p/Share	292 Reduced 0.62%	47,183 Common Stock
Nov 11 2024	SELL Payment of exercise price or tax liability	$7,565 $11.97 p/Share	632 Reduced 1.31%	47,475 Common Stock

Jul 11 2024	BUY Grant, award, or other acquisition	-	15,000 Added 23.77%	48,107 Common Stock
Jun 08 2024	SELL Payment of exercise price or tax liability	$7,223 $6.19 p/Share	1,167 Reduced 3.4%	33,107 Common Stock
Apr 07 2024	SELL Payment of exercise price or tax liability	$1,522 $2.29 p/Share	665 Reduced 1.9%	34,274 Common Stock
Mar 05 2024	SELL Payment of exercise price or tax liability	$1,179 $3.41 p/Share	346 Reduced 0.98%	34,939 Common Stock
Nov 11 2023	SELL Payment of exercise price or tax liability	$1,264 $2.0 p/Share	632 Reduced 1.76%	35,285 Common Stock

William Hartzel

SVP, Bioservices

Gaithersburg, MD

Institutional Portfolio Updates

Receive a notification when an Institution or Guru buys or sells EBS shares.

Notify only if

Value

Insider Trading

Get notified when an Emergent Bio Solutions Inc. insider buys or sells EBS shares.

Notify only if

Operation

Value

Type

News

Receive news related to Emergent BioSolutions Inc.

Track Activities on EBS

Account