STIRITZ WILLIAM P

Director at FEDERATED DEPARTMENT STORES INC /DE/ · on record since Jan 3, 2006
Director at ENERGIZER HOLDINGS INC · on record since Feb 7, 2006
Director at RALCORP HOLDINGS INC /MO · on record since Feb 6, 2006
Director at VAIL RESORTS INC · on record since Oct 6, 2006
Director at Reliance Bancshares, Inc. · on record since Sep 18, 2007
10% owner at Reliance Bancshares, Inc. · on record since Sep 18, 2007
Chairman Emeritus at Post Holdings, Inc. · on record since Dec 19, 2025
Director at Post Holdings, Inc. · on record since Feb 7, 2012
Chairman and CEO at Post Holdings, Inc. · on record since Feb 7, 2012
Director at BALL CORP · on record since Dec 16, 2003
Director at MAY DEPARTMENT STORES CO · on record since Feb 2, 2004

Insider trading activity of STIRITZ WILLIAM P

Transactions on record: 430; since Aug 4, 2003

Open-market buys: 63; $131.1M

Open-market sells: 5; $23.4M

Companies traded: 7; last filing Dec 19, 2025

Figures computed from official regulatory filings — .

Companies where STIRITZ WILLIAM P has traded

Post Holdings, Inc.146 tx · $292.9M · Dec 19, 2025
RALCORP HOLDINGS INC /MO143 tx · $29M · Feb 2, 2012
VAIL RESORTS INC15 tx · $4.9K · Sep 24, 2009
ENERGIZER HOLDINGS INC53 tx · $15.4M · Apr 23, 2008
FEDERATED DEPARTMENT STORES INC /DE/43 tx · $20.6M · Apr 3, 2007
23 tx · $491.6K · Sep 19, 2005
7 tx · $2M · Aug 31, 2005

Track record of STIRITZ WILLIAM P

Statistical track record

Free

Open-market buys: 63

Last buy: Aug 19, 2025

Win rates and median returns are available with a free account (5 insiders/month).

Transaction history of STIRITZ WILLIAM P

Co-insiders of STIRITZ WILLIAM P

This page republishes public regulatory disclosures.

Company	Filed	Type	Qty	Price	Value · USD	Src
Post Holdings, Inc.	Dec 19, 2025	Exercise	10,703.23	—	—	SEC
Post Holdings, Inc.	Dec 19, 2025	Exercise	170,000.8	—	—	SEC
Post Holdings, Inc.	Dec 19, 2025	ExerciseD (derivative)	-170,000.8	—	—	SEC
Post Holdings, Inc.	Dec 19, 2025	ExerciseD (derivative)	-10,703.23	—	—	SEC
Post Holdings, Inc.	Dec 19, 2025	Other	-10,703.23	101.19 USD	$1.1M	SEC
Post Holdings, Inc.	Dec 19, 2025	Other	-170,000.8	101.81 USD	$17.3M	SEC
Post Holdings, Inc.	Dec 18, 2025	AwardD (derivative)	57.97	98.93 USD	$5.7K	SEC
Post Holdings, Inc.	Dec 2, 2025	AwardD (derivative)	106.8	104.03 USD	$11.1K	SEC
Post Holdings, Inc.	Nov 4, 2025	AwardD (derivative)	106.91	103.93 USD	$11.1K	SEC
Post Holdings, Inc.	Oct 2, 2025	AwardD (derivative)	103.38	107.48 USD	$11.1K	SEC
Post Holdings, Inc.	Sep 3, 2025	AwardD (derivative)	98.2	113.15 USD	$11.1K	SEC
Post Holdings, Inc.	Aug 21, 2025	Buy	36,000	109.53 USD	$3.9M	SEC
Post Holdings, Inc.	Aug 4, 2025	AwardD (derivative)	105.01	105.81 USD	$11.1K	SEC
Post Holdings, Inc.	Jul 2, 2025	AwardD (derivative)	101.91	109.03 USD	$11.1K	SEC
Post Holdings, Inc.	Jun 9, 2025	Buy	186,740	109.12 USD	$20.4M	SEC
Post Holdings, Inc.	Jun 3, 2025	AwardD (derivative)	100.47	110.59 USD	$11.1K	SEC
Post Holdings, Inc.	May 2, 2025	AwardD (derivative)	98.18	113.17 USD	$11.1K	SEC
Post Holdings, Inc.	Apr 2, 2025	AwardD (derivative)	95.49	116.36 USD	$11.1K	SEC
Post Holdings, Inc.	Mar 4, 2025	AwardD (derivative)	97.88	113.51 USD	$11.1K	SEC
Post Holdings, Inc.	Feb 6, 2025	Award	2,500	0.00 USD	—	SEC
Post Holdings, Inc.	Feb 4, 2025	AwardD (derivative)	104.66	106.16 USD	$11.1K	SEC
Post Holdings, Inc.	Jan 3, 2025	AwardD (derivative)	97.07	114.46 USD	$11.1K	SEC
Post Holdings, Inc.	Dec 3, 2024	AwardD (derivative)	92.22	120.48 USD	$11.1K	SEC
Post Holdings, Inc.	Nov 4, 2024	AwardD (derivative)	101.74	109.21 USD	$11.1K	SEC
Post Holdings, Inc.	Oct 2, 2024	AwardD (derivative)	95.99	115.75 USD	$11.1K	SEC

Company	Filed	Type	Qty	Price	Value · USD	Src
Post Holdings, Inc.	Dec 19, 2025	Exercise	10,703.23	—	—	SEC
Post Holdings, Inc.	Dec 19, 2025	Exercise	170,000.8	—	—	SEC
Post Holdings, Inc.	Dec 19, 2025	ExerciseD (derivative)	-170,000.8	—	—	SEC
Post Holdings, Inc.	Dec 19, 2025	ExerciseD (derivative)	-10,703.23	—	—	SEC
Post Holdings, Inc.	Dec 19, 2025	Other	-10,703.23	101.19 USD	$1.1M	SEC
Post Holdings, Inc.	Dec 19, 2025	Other	-170,000.8	101.81 USD	$17.3M	SEC
Post Holdings, Inc.	Dec 18, 2025	AwardD (derivative)	57.97	98.93 USD	$5.7K	SEC
Post Holdings, Inc.	Dec 2, 2025	AwardD (derivative)	106.8	104.03 USD	$11.1K	SEC
Post Holdings, Inc.	Nov 4, 2025	AwardD (derivative)	106.91	103.93 USD	$11.1K	SEC
Post Holdings, Inc.	Oct 2, 2025	AwardD (derivative)	103.38	107.48 USD	$11.1K	SEC
Post Holdings, Inc.	Sep 3, 2025	AwardD (derivative)	98.2	113.15 USD	$11.1K	SEC
Post Holdings, Inc.	Aug 21, 2025	Buy	36,000	109.53 USD	$3.9M	SEC
Post Holdings, Inc.	Aug 4, 2025	AwardD (derivative)	105.01	105.81 USD	$11.1K	SEC
Post Holdings, Inc.	Jul 2, 2025	AwardD (derivative)	101.91	109.03 USD	$11.1K	SEC
Post Holdings, Inc.	Jun 9, 2025	Buy	186,740	109.12 USD	$20.4M	SEC
Post Holdings, Inc.	Jun 3, 2025	AwardD (derivative)	100.47	110.59 USD	$11.1K	SEC
Post Holdings, Inc.	May 2, 2025	AwardD (derivative)	98.18	113.17 USD	$11.1K	SEC
Post Holdings, Inc.	Apr 2, 2025	AwardD (derivative)	95.49	116.36 USD	$11.1K	SEC
Post Holdings, Inc.	Mar 4, 2025	AwardD (derivative)	97.88	113.51 USD	$11.1K	SEC
Post Holdings, Inc.	Feb 6, 2025	Award	2,500	0.00 USD	—	SEC
Post Holdings, Inc.	Feb 4, 2025	AwardD (derivative)	104.66	106.16 USD	$11.1K	SEC
Post Holdings, Inc.	Jan 3, 2025	AwardD (derivative)	97.07	114.46 USD	$11.1K	SEC
Post Holdings, Inc.	Dec 3, 2024	AwardD (derivative)	92.22	120.48 USD	$11.1K	SEC
Post Holdings, Inc.	Nov 4, 2024	AwardD (derivative)	101.74	109.21 USD	$11.1K	SEC
Post Holdings, Inc.	Oct 2, 2024	AwardD (derivative)	95.99	115.75 USD	$11.1K	SEC