Insider · CIK 0001954094

MAINER MATTHEW J

Reports to the SEC for 1 company · ST. LOUIS, MO

sec.gov

Transactions

Companies

Filings

CIK

0001954094

Forms 4 and 5

Insider transactions

45 trades

Date	Company	Role	Code	Shares	Price	Value	Shares after
2026-10-22	POSTPost Holdings, Inc.F Tax Payment	EVP, CFO & TREASURER	FTax Payment	−7,940 sh	$78.06	−$620K	84,754
2026-10-22	POSTPost Holdings, Inc.A Award	EVP, CFO & TREASURER	AAward	+18K sh	—	—	92,694
2025-12-04	POSTPost Holdings, Inc.G Gift	EVP, CFO & TREASURER	GGift	−600 sh	—	—	74,670
2025-12-01	POSTPost Holdings, Inc.F Tax Payment	EVP, CFO & TREASURER	FTax Payment	−269 sh	$104.03	−$28K	75,270
2025-11-18	POSTPost Holdings, Inc.A Award	EVP, CFO & TREASURER	AAward	+17.3K sh	—	—	67,416
2025-11-18	POSTPost Holdings, Inc.A Award	EVP, CFO & TREASURER	AAward	+8,123 sh	—	—	75,539
2025-11-15	POSTPost Holdings, Inc.F Tax Payment	EVP, CFO & TREASURER	FTax Payment	−937 sh	$106.70	−$100K	50,078
2025-11-14	POSTPost Holdings, Inc.F Tax Payment	EVP, CFO & TREASURER	FTax Payment	−1,249 sh	$106.34	−$133K	51,015
2025-11-12	POSTPost Holdings, Inc.M Exercise/Conversion	EVP, CFO & TREASURER	MExercise/Conversion	+6,008 sh	—	—	52,720
2025-11-12	POSTPost Holdings, Inc.F Tax Payment	EVP, CFO & TREASURER	FTax Payment	−2,647 sh	$106.02	−$281K	50,073
2025-11-12	POSTPost Holdings, Inc.M Exercise/Conversion	EVP, CFO & TREASURER	MExercise/Conversion	+3,916 sh	—	—	53,989
2025-11-12	POSTPost Holdings, Inc.F Tax Payment	EVP, CFO & TREASURER	FTax Payment	−1,725 sh	$106.02	−$183K	52,264
2025-11-12	POSTPost Holdings, Inc. · Restricted Stock UnitsM Exercise/Conversion	EVP, CFO & TREASURER	MExercise/Conversion	−6,008 sh	—	—	0
2025-11-12	POSTPost Holdings, Inc. · Restricted Stock UnitsM Exercise/Conversion	EVP, CFO & TREASURER	MExercise/Conversion	−3,916 sh	—	—	7,833
2025-10-22	POSTPost Holdings, Inc.A Award	EVP, CFO & TREASURER	AAward	+16.6K sh	—	—	54,020
2025-10-22	POSTPost Holdings, Inc.F Tax Payment	EVP, CFO & TREASURER	FTax Payment	−7,308 sh	$107.19	−$783K	46,712
2024-12-05	POSTPost Holdings, Inc.G Gift	EVP, CFO & TREASURER	GGift	−500 sh	—	—	37,432
2024-12-01	POSTPost Holdings, Inc.F Tax Payment	EVP, CFO & TREASURER	FTax Payment	−269 sh	$120.48	−$32.4K	40,338
2024-12-01	POSTPost Holdings, Inc.F Tax Payment	EVP, CFO & TREASURER	FTax Payment	−2,047 sh	$120.48	−$247K	38,291
2024-12-01	POSTPost Holdings, Inc.F Tax Payment	EVP, CFO & TREASURER	FTax Payment	−359 sh	$120.48	−$43.3K	37,932
2024-11-20	POSTPost Holdings, Inc.F Tax Payment	EVP, CFO & TREASURER	FTax Payment	−623 sh	$110.31	−$68.7K	40,607
2024-11-15	POSTPost Holdings, Inc.F Tax Payment	EVP, CFO & TREASURER	FTax Payment	−940 sh	$107.78	−$101K	41,230
2024-11-14	POSTPost Holdings, Inc.F Tax Payment	EVP, CFO & TREASURER	FTax Payment	−2,404 sh	$109.47	−$263K	44,486
2024-11-14	POSTPost Holdings, Inc.F Tax Payment	EVP, CFO & TREASURER	FTax Payment	−1,252 sh	$109.47	−$137K	43,234
2024-11-14	POSTPost Holdings, Inc.F Tax Payment	EVP, CFO & TREASURER	FTax Payment	−1,064 sh	$109.47	−$116K	42,170
2024-11-13	POSTPost Holdings, Inc. · Restricted Stock UnitsA Award	EVP, CFO & TREASURER	AAward	+11.7K sh	—	—	11,749
2024-11-13	POSTPost Holdings, Inc. · Restricted Stock UnitsA Award	EVP, CFO & TREASURER	AAward	+6,008 sh	—	—	6,008
2024-10-21	POSTPost Holdings, Inc.A Award	EVP, CFO & TREASURER	AAward	+6,326 sh	—	—	49,683
2024-10-21	POSTPost Holdings, Inc.F Tax Payment	EVP, CFO & TREASURER	FTax Payment	−2,793 sh	$115.21	−$322K	46,890
2023-12-01	POSTPost Holdings, Inc.F Tax Payment	EVP, CFO & TREASURER	FTax Payment	−2,054 sh	$85.53	−$176K	44,762
2023-12-01	POSTPost Holdings, Inc.F Tax Payment	EVP, CFO & TREASURER	FTax Payment	−360 sh	$85.53	−$30.8K	44,402
2023-12-01	POSTPost Holdings, Inc.F Tax Payment	EVP, CFO & TREASURER	FTax Payment	−270 sh	$85.53	−$23.1K	44,132
2023-12-01	POSTPost Holdings, Inc.F Tax Payment	EVP, CFO & TREASURER	FTax Payment	−775 sh	$85.53	−$66.3K	43,357
2023-11-20	POSTPost Holdings, Inc.F Tax Payment	EVP, CFO & TREASURER	FTax Payment	−308 sh	$86.17	−$26.5K	47,859
2023-11-20	POSTPost Holdings, Inc.F Tax Payment	EVP, CFO & TREASURER	FTax Payment	−626 sh	$86.17	−$53.9K	47,233
2023-11-20	POSTPost Holdings, Inc.F Tax Payment	EVP, CFO & TREASURER	FTax Payment	−417 sh	$86.17	−$35.9K	46,816
2023-11-15	POSTPost Holdings, Inc.F Tax Payment	EVP, CFO & TREASURER	FTax Payment	−942 sh	$85.50	−$80.5K	48,167
2023-11-14	POSTPost Holdings, Inc.A Award	EVP, CFO & TREASURER	AAward	+8,502 sh	—	—	41,256
2023-11-14	POSTPost Holdings, Inc.A Award	EVP, CFO & TREASURER	AAward	+5,445 sh	—	—	46,701
2023-11-14	POSTPost Holdings, Inc.A Award	EVP, CFO & TREASURER	AAward	+2,408 sh	—	—	49,109
2023-08-20	POSTPost Holdings, Inc.F Tax Payment	EVP, CFO & TREASURER	FTax Payment	−170 sh	$88.09	−$15K	32,754
2022-12-01	POSTPost Holdings, Inc.F Tax Payment	EVP, CFO & TREASURER	FTax Payment	−781 sh	$94.09	−$73.5K	35,629
2022-12-01	POSTPost Holdings, Inc.F Tax Payment	EVP, CFO & TREASURER	FTax Payment	−272 sh	$94.09	−$25.6K	35,357
2022-12-01	POSTPost Holdings, Inc.F Tax Payment	EVP, CFO & TREASURER	FTax Payment	−2,070 sh	$94.09	−$195K	33,287
2022-12-01	POSTPost Holdings, Inc.F Tax Payment	EVP, CFO & TREASURER	FTax Payment	−363 sh	$94.09	−$34.2K	32,924

Recent filings

Accepted (ET)
Oct 264
MAINER MATTHEW J0001954094-26-000002
SEC(opens sec.gov)
Dec 54
MAINER MATTHEW J0001954094-25-000013
SEC(opens sec.gov)
Dec 24
MAINER MATTHEW J0001954094-25-000011
SEC(opens sec.gov)
Nov 204
MAINER MATTHEW J0001954094-25-000009
SEC(opens sec.gov)
Nov 184
MAINER MATTHEW J0001954094-25-000007
SEC(opens sec.gov)
Nov 144
MAINER MATTHEW J0001954094-25-000005
SEC(opens sec.gov)
Oct 244
MAINER MATTHEW J0001954094-25-000003
SEC(opens sec.gov)
Dec 94
MAINER MATTHEW J0001530950-24-000451
SEC(opens sec.gov)
Dec 34
MAINER MATTHEW J0001530950-24-000434
SEC(opens sec.gov)

Companies

Post Holdings, Inc.EVP, CFO & TREASURERPOST

Address

C/O POST HOLDINGS, INC. 2503 S. HANLEY ROAD

ST. LOUIS, MO, 63144