Louisiana-Pacific LPX Insider Ownership

NYSE LPX

$74.79 +2.27 (+3.13%)

As of: Oct 22, 2026 · 3:59 PM EDT

Insider Holdings by Owner

1.98Mn Shares

Insider Ownership Statistics

as of 30 Sep, 2026

Insider Ownership

1.58%

▲+0.048% pp QoQ

Shares Held by Insiders

1.10Mn

filed for Sep 2026

▲+3.14% QoQ

Shares Outstanding

70.00Mn

70,000,000 shares

Direct Holdings

1.10Mn

Indirect: 0

Net Shares Traded (QoQ)

+33.52K

net buying in Sep 2026

Insiders Holding Shares

with Form 4 holdings on file

Shares Owned by Insiders

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Insiders

Bought Sold

Latest quarter —

Net over range —

Buying quarters —

Insider Ownership Summary

Updated Oct 5, 2026

In the last 12 months, insiders at Louisiana-Pacific made open-market purchases of $1.96 million (23.2K shares) and open-market sales of $15.35 million (172.45K shares).

Counted by insider, open-market buying of LPX stock in the past 12 months came from 2 insiders and selling from 2 insiders.
Among Louisiana-Pacific insiders, F. Nicholas Grasberger III (Director) led open-market buying over the past 12 months with $1.71 million of purchases (20K shares); the latest was on February 19, 2026.
Meanwhile, the largest open-market sales of LPX in the past 12 months were by William Bradley Southern (Chief Executive Officer), totaling $15.16 million (170.01K shares), most recently on February 18, 2026.
The newest open-market trade among Louisiana-Pacific insiders came on June 15, 2026, when Lizanne M. Bruce (Director) made a sale of 1.14K shares for $89,238.
Beyond open-market trades, insiders at Louisiana-Pacific received 119.37K shares in stock awards and gave up 47.62K shares to cover taxes or exercise prices in the last 12 months.
Per Business Quant, LPX insiders together hold 1.1Mn shares based on their latest Form 4 filings, or 1.58% of the 70Mn shares outstanding; that total is up 3.14% from 1.07Mn shares at the end of Q2 2026 and down 9.26% from 1.22Mn shares at the end of Q3 2025.
LPX's insiders hold all 1.1Mn shares directly, in their own names, with no indirect holdings.
Per Business Quant, 18 insiders of LPX hold shares, counting officers, directors and 10% owners who have filed a Form 4 in the past two years.
Louisiana-Pacific's three biggest insider holders are William Bradley Southern (Chief Executive Officer, 447.55K shares), Alan Haughie (EVP, CFO, 143.33K shares) and Jason Paul Ringblom (Chief Executive Officer, 139.79K shares), based on their latest Form 4 filings.
William Bradley Southern holds 40.58% of the combined insider position in Louisiana-Pacific.
Over the trailing 12 months, 15 insiders reported transactions in LPX stock across 39 Form 4 filings.
The insider holdings and trades above for Louisiana-Pacific reflect Form 4 filings through September 2, 2026.

Form 4 Holdings

Insiders Holding LPX

Insiders 23

Shares held 1.98Mn

Of outstanding 2.82%

#	Insider	Position	Direct	Total	Share of Insiders	Last Filed
1	William Bradley Southern	Chief Executive Officer	1,036,527	1,036,527	52.4%	18 Feb, 2026
2	Alan Haughie	Evp, Cfo	202,291	202,291	10.2%	17 Feb, 2026
3	Jason Paul Ringblom	Chief Executive Officer	139,791	139,791	7.1%	08 Apr, 2026
4	Neil Sherman	Evp Siding	103,584	103,584	5.2%	14 Feb, 2022
5	Dustan E Mccoy	Director	70,594	70,594	3.6%	19 May, 2025
6	Michael W Blosser	Svp, Manufacturing Services	54,898	54,898	2.8%	15 May, 2024
7	Nicole C Daniel	Svp, General Counsel, Corp Sec	46,078	46,078	2.3%	17 Feb, 2026
8	Stephen E. Macadam	Director	43,080	43,080	2.2%	11 May, 2026
9	F Nicholas Iii Grasberger	Director	40,838	40,838	2.1%	11 May, 2026
10	Tracy A Embree	Director	34,776	34,776	1.8%	20 May, 2024
11	Aaron Howald	Svp, Cfo	34,338	34,338	1.7%	02 Sep, 2026
12	Jimmy Earl Mason	Evp, General Manager, Osb	32,285	32,285	1.6%	14 Feb, 2025
13	Ozey K Jr Horton	Director	29,728	29,728	1.5%	14 Aug, 2025
14	Robin H Everhart	Svp, Chro	27,745	27,745	1.4%	18 Apr, 2022
15	Anthony Hamill	Svp, Coo	23,937	23,937	1.2%	06 Jul, 2026
16	Lizanne M Bruce	Director	17,517	17,517	0.9%	16 Jun, 2026
17	Jose A Bayardo	Director	9,616	9,616	0.5%	11 May, 2026
18	Craig M Sichling	Svp, Chief Commercial Officer	8,969	8,969	0.5%	17 Feb, 2026
19	Derek Nelson Doyle	Vp, Controller Cao	5,748	5,748	0.3%	14 Feb, 2024
20	Leslie E Davis	Vp, Controller Cao	4,066	4,066	0.2%	17 Feb, 2026
21	Ty R Silberhorn	Director	3,698	3,698	0.2%	11 May, 2026
22	Jeanmichel Ribieras	Director	3,697	3,697	0.2%	11 May, 2026
23	Kelly Hefner Barrett	Director	3,675	3,675	0.2%	11 May, 2026

Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.

Form 4 Filings

1,217 Insider Transactions

Source SEC Form 4

Latest quarter Sep 2026

Date	Insider	Position	Transaction	Shares	Price	Value	Shares Held After	Ownership
01 Sep, 2026	Aaron Howald	Svp, Cfo	Acquired A	9,083	$0.00	$0	34,338	Direct
01 Jul, 2026	Anthony Hamill	Svp, Coo	Disposed F	1,064	$78.66	$83.69K	23,937	Direct
15 Jun, 2026	Lizanne M Bruce	Director	Disposed S	1,141	$78.21	$89.24K	17,895	Direct
15 Jun, 2026	Lizanne M Bruce	Director	Disposed J	378	$0.00	$0	17,517	Direct
08 May, 2026	Ty R Silberhorn	Director	Acquired A	1,863	$0.00	$0	3,698	Direct
08 May, 2026	Jeanmichel Ribieras	Director	Acquired A	1,863	$0.00	$0	3,697	Direct
08 May, 2026	F Nicholas Iii Grasberger	Director	Acquired A	1,863	$0.00	$0	40,838	Direct
08 May, 2026	Stephen E. Macadam	Director	Acquired A	1,863	$0.00	$0	43,080	Direct
08 May, 2026	Lizanne M Bruce	Director	Acquired A	1,863	$0.00	$0	19,029	Direct
08 May, 2026	Kelly Hefner Barrett	Director	Acquired A	1,863	$0.00	$0	3,675	Direct
08 May, 2026	Jose A Bayardo	Director	Acquired A	1,863	$0.00	$0	9,616	Direct
07 Apr, 2026	Jason Paul Ringblom	Chief Executive Officer	Disposed F	1,198	$69.89	$83.73K	139,791	Direct
10 Mar, 2026	Lizanne M Bruce	Director	Disposed S	1,300	$78.59	$102.17K	17,160	Direct
19 Feb, 2026	F Nicholas Iii Grasberger	Director	Acquired P	20,000	$85.49	$1.71Mn	38,954	Direct
17 Feb, 2026	William Bradley Southern	Chief Executive Officer	Disposed S	293	$87.02	$25.50K	475,592	Direct
17 Feb, 2026	William Bradley Southern	Chief Executive Officer	Disposed S	3,230	$88.61	$286.21K	472,362	Direct
17 Feb, 2026	William Bradley Southern	Chief Executive Officer	Disposed S	9,323	$89.48	$834.22K	463,039	Direct
17 Feb, 2026	William Bradley Southern	Chief Executive Officer	Disposed S	1,320	$90.12	$118.96K	461,719	Direct
18 Feb, 2026	William Bradley Southern	Chief Executive Officer	Disposed S	5,581	$86.87	$484.82K	456,138	Direct
18 Feb, 2026	William Bradley Southern	Chief Executive Officer	Disposed S	4,592	$88.05	$404.33K	451,546	Direct

Showing 1 to 20 of 1,217 transactions