Mark A. Hershey

AWI

SVP AMERICAS · ARMSTRONG WORLD INDUSTRIES INC · CIK 0001322386

FILING MIX · LIFETIME36%/64%

BUYS

SELLS

TOTAL VALUE

$13.52M

COMPANIES

ACTIVE SINCE

Apr 2020

HOLDINGS NOW

70,616

AVG SELL PX

$94.41

Trades · vs SPY

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Performance · forward returns vs SPY

8 backtested trades · 8 horizons

Forward-return performance of every backtestable P/S trade by Mark A. Hershey, measured at 8 horizons from 7 days to 2 years. Deduped per economic event so co-filings count once. Excess return = trade return minus SPY return over the same window.

HORIZON	TRADES	WIN RATE	INSIDER RETURN	SPY RETURN	MEAN EXCESS	MEDIAN EXCESS	T-STAT
7d	8	+37.50%	-1.25%	-0.03%	-1.22%	+0.81%	—
14d	8	+37.50%	-1.52%	-0.43%	-1.08%	+0.36%	—
30d	8	+62.50%	-3.45%	-0.37%	-3.08%	-1.98%	—
60d	8	+25.00%	-0.23%	+1.52%	-1.75%	-0.41%	—
90d	8	+37.50%	-0.39%	+3.30%	-3.68%	-3.02%	—
180d	8	+25.00%	+10.33%	+9.59%	+0.74%	-3.51%	—
1y	8	+50.00%	+8.15%	+12.52%	-4.36%	-6.87%	—
2y	8	+75.00%	-1.21%	+13.20%	-14.40%	-17.65%	—

How to read this: Insider Returnis the average raw return of the filer's trades over the horizon. SPY Return is what SPY did over those same windows — reference only, not a comparison. The headline alpha number is Mean Excess = Insider − SPY; green means the filer beat SPY, red means they trailed it. Win rate is the share of individual trades where the filer beat SPY. T-statvalues above 2 mean the alpha is unlikely to be chance given the sample size. "Pending" counts trades where the horizon hasn't elapsed yet; their stats are not included in the row average.

Holdings over time

AWI · 70,616 shares · as of Apr 8, 2026

Trading cadence · quarterly flow

BUY ● SELL ●

2020

2021

2022

2023

2024

2025

2026

FLOW · 17 buys / 30 sellsCOVERAGE · 25 quarters

Form 4 filings · all activity

COMPANY	TYPE	SHARES	PRICE	VALUE	HELD AFTER	TRADE DATE	FILED	DETAILS
AWI ARMSTRONG WORLD INDUSTRIES INC	SALE President & CEO	5,839	$172.77	$1.01M	64,777	Apr 8, 2026	Apr 10, 2026 ↗	View →
AWI ARMSTRONG WORLD INDUSTRIES INC	SALE President & CEO	13,423	—	—	0	Apr 8, 2026	Apr 10, 2026 ↗	View →
AWI ARMSTRONG WORLD INDUSTRIES INC	PURCHASE President & CEO	13,423	—	—	70,616	Apr 8, 2026	Apr 10, 2026 ↗	View →
AWI ARMSTRONG WORLD INDUSTRIES INC	PURCHASE SVP & Chief Operating Officer	3,532	$173.50	$612.8K	58,509	Feb 27, 2026	Mar 2, 2026 ↗	View →
AWI ARMSTRONG WORLD INDUSTRIES INC	SALE SVP & Chief Operating Officer	1,316	$173.50	$228.3K	57,193	Feb 27, 2026	Mar 2, 2026 ↗	View →
AWI ARMSTRONG WORLD INDUSTRIES INC	SALE SVP & Chief Operating Officer	3,532	—	—	0	Feb 27, 2026	Mar 2, 2026 ↗	View →
AWI ARMSTRONG WORLD INDUSTRIES INC	PURCHASEGRANT Stock grant	7,666	$172.21	$1.32M	7,666	Feb 25, 2026	Feb 26, 2026 ↗	View →
AWI ARMSTRONG WORLD INDUSTRIES INC	SALE SVP & Chief Operating Officer	16,540	—	—	0	Apr 8, 2025	Apr 10, 2025 ↗	View →
AWI ARMSTRONG WORLD INDUSTRIES INC	PURCHASE SVP & Chief Operating Officer	16,540	—	—	61,803	Apr 8, 2025	Apr 10, 2025 ↗	View →
AWI ARMSTRONG WORLD INDUSTRIES INC	SALE SVP & Chief Operating Officer	6,826	$126.10	$860.8K	54,977	Apr 8, 2025	Apr 10, 2025 ↗	View →
AWI ARMSTRONG WORLD INDUSTRIES INC	PURCHASEGRANT Stock grant	2,217	$152.23	$337.5K	2,217	Feb 26, 2025	Feb 28, 2025 ↗	View →
AWI ARMSTRONG WORLD INDUSTRIES INC	SALE SVP Americas	2,959	$120.40	$356.3K	45,263	Apr 4, 2024	Apr 5, 2024 ↗	View →
AWI ARMSTRONG WORLD INDUSTRIES INC	PURCHASE SVP Americas	7,561	—	—	48,222	Apr 4, 2024	Apr 5, 2024 ↗	View →
AWI ARMSTRONG WORLD INDUSTRIES INC	SALE SVP Americas	7,561	—	—	0	Apr 4, 2024	Apr 5, 2024 ↗	View →
AWI ARMSTRONG WORLD INDUSTRIES INC	PURCHASEGRANT Stock grant	2,351	$119.06	$279.9K	2,351	Feb 21, 2024	Feb 22, 2024 ↗	View →
AWI ARMSTRONG WORLD INDUSTRIES INC	PURCHASE SVP Americas	3,972	—	—	42,190	Apr 6, 2023	Apr 10, 2023 ↗	View →
AWI ARMSTRONG WORLD INDUSTRIES INC	SALE SVP Americas	1,529	$68.20	$104.3K	40,661	Apr 6, 2023	Apr 10, 2023 ↗	View →
AWI ARMSTRONG WORLD INDUSTRIES INC	SALE SVP Americas	3,972	—	—	0	Apr 6, 2023	Apr 10, 2023 ↗	View →
AWI ARMSTRONG WORLD INDUSTRIES INC	PURCHASEGRANT Stock grant	3,532	—	—	3,532	Mar 1, 2023	Mar 3, 2023 ↗	View →
AWI ARMSTRONG WORLD INDUSTRIES INC	SALE SVP Americas	6,835	$80.14	$547.8K	38,218	Feb 1, 2023	Feb 2, 2023 ↗	View →
AWI ARMSTRONG WORLD INDUSTRIES INC	SALE SVP Americas	1,365	$95.11	$129.8K	45,053	Apr 21, 2022	Apr 21, 2022 ↗	View →
AWI ARMSTRONG WORLD INDUSTRIES INC	SALE SVP Americas	1,051	$92.81	$97.5K	46,418	Apr 19, 2022	Apr 21, 2022 ↗	View →
AWI ARMSTRONG WORLD INDUSTRIES INC	SALE SVP Americas	2,416	—	—	0	Apr 19, 2022	Apr 21, 2022 ↗	View →
AWI ARMSTRONG WORLD INDUSTRIES INC	PURCHASE SVP Americas	2,416	—	—	47,469	Apr 19, 2022	Apr 21, 2022 ↗	View →
AWI ARMSTRONG WORLD INDUSTRIES INC	PURCHASEGRANT Stock grant	3,972	—	—	3,972	Apr 7, 2022	Apr 11, 2022 ↗	View →
AWI ARMSTRONG WORLD INDUSTRIES INC	SALE SVP, Gen Cnsl, Compliance	3,042	$105.24	$320.2K	45,253	May 3, 2021	May 4, 2021 ↗	View →
AWI ARMSTRONG WORLD INDUSTRIES INC	SALE SVP, Gen Cnsl, Compliance	200	$105.88	$21.2K	45,053	May 3, 2021	May 4, 2021 ↗	View →
AWI ARMSTRONG WORLD INDUSTRIES INC	SALE SVP, Gen Cnsl, Compliance	1,656	$104.37	$172.8K	48,295	May 3, 2021	May 4, 2021 ↗	View →
AWI ARMSTRONG WORLD INDUSTRIES INC	SALE SVP, Gen Cnsl, Compliance	3,363	$92.60	$311.4K	49,951	Apr 5, 2021	Apr 7, 2021 ↗	View →
AWI ARMSTRONG WORLD INDUSTRIES INC	SALE SVP, Gen Cnsl, Compliance	9,211	—	—	0	Apr 5, 2021	Apr 7, 2021 ↗	View →
AWI ARMSTRONG WORLD INDUSTRIES INC	PURCHASE SVP, Gen Cnsl, Compliance	9,211	—	—	53,314	Apr 5, 2021	Apr 7, 2021 ↗	View →
AWI ARMSTRONG WORLD INDUSTRIES INC	SALE SVP, Gen Cnsl, Compliance	4,897	$85.00	$416.2K	44,103	Jan 14, 2021	Jan 15, 2021 ↗	View →
AWI ARMSTRONG WORLD INDUSTRIES INC	PURCHASE SVP, Gen Cnsl, Compliance	17,339	$80.00	$1.39M	61,826	Dec 3, 2020	Dec 4, 2020 ↗	View →
AWI ARMSTRONG WORLD INDUSTRIES INC	SALE SVP, Gen Cnsl, Compliance	17,339	—	—	17,339	Dec 3, 2020	Dec 4, 2020 ↗	View →
AWI ARMSTRONG WORLD INDUSTRIES INC	SALE SVP, Gen Cnsl, Compliance	16,084	—	—	16,084	Dec 3, 2020	Dec 4, 2020 ↗	View →
AWI ARMSTRONG WORLD INDUSTRIES INC	SALE SVP, Gen Cnsl, Compliance	33,423	$80.00	$2.67M	44,487	Dec 3, 2020	Dec 4, 2020 ↗	View →
AWI ARMSTRONG WORLD INDUSTRIES INC	PURCHASE SVP, Gen Cnsl, Compliance	16,084	$80.00	$1.29M	77,910	Dec 3, 2020	Dec 4, 2020 ↗	View →
AWI ARMSTRONG WORLD INDUSTRIES INC	PURCHASE SVP, Gen Cnsl, Compliance	200	$80.05	$16.0K	44,687	Nov 24, 2020	Nov 25, 2020 ↗	View →
AWI ARMSTRONG WORLD INDUSTRIES INC	PURCHASE SVP, Gen Cnsl, Compliance	100	$80.04	$8.0K	44,787	Nov 24, 2020	Nov 25, 2020 ↗	View →
AWI ARMSTRONG WORLD INDUSTRIES INC	SALE SVP, Gen Cnsl, Compliance	100	—	—	100	Nov 24, 2020	Nov 25, 2020 ↗	View →
AWI ARMSTRONG WORLD INDUSTRIES INC	SALE SVP, Gen Cnsl, Compliance	300	$80.04	$24.0K	44,487	Nov 24, 2020	Nov 25, 2020 ↗	View →
AWI ARMSTRONG WORLD INDUSTRIES INC	SALE SVP, Gen Cnsl, Compliance	200	—	—	200	Nov 24, 2020	Nov 25, 2020 ↗	View →
AWI ARMSTRONG WORLD INDUSTRIES INC	SALE SVP, Gen Cnsl, Compliance	1,963	$84.29	$165.5K	44,487	Apr 11, 2020	Apr 14, 2020 ↗	View →
AWI ARMSTRONG WORLD INDUSTRIES INC	SALE SVP, Gen Cnsl, Compliance	1,963	$84.29	$165.5K	49,000	Apr 11, 2020	Jan 15, 2021 ↗	View →
AWI ARMSTRONG WORLD INDUSTRIES INC	SALE SVP, Gen Cnsl, Compliance	20,804	—	—	20,804	Apr 1, 2020	Apr 3, 2020 ↗	View →
AWI ARMSTRONG WORLD INDUSTRIES INC	PURCHASE SVP, Gen Cnsl, Compliance	20,804	—	—	55,496	Apr 1, 2020	Apr 3, 2020 ↗	View →
AWI ARMSTRONG WORLD INDUSTRIES INC	SALE SVP, Gen Cnsl, Compliance	9,046	$73.33	$663.3K	46,450	Apr 1, 2020	Apr 3, 2020 ↗	View →

Other insiders · AWI

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About this filer

CIK 0001322386

ROLE

SVP Americas

PRIMARY

AWI

COMPANIES

ACTIVE SINCE

Apr 2020

MARKETPEEL · /INSIDER/0001322386DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE

Mark A. Hershey

The morning brief, before the bell.