SEC Form 4 reporting owner

Almstead Neil Gregory

Almstead Neil Gregory has filed 69 Form 4 transactions reported between November 24, 2025 and July 9, 2026, as CHIEF TECHNICAL OPS OFFICER of PTC THERAPEUTICS, INC..

Name as filed: Almstead Neil Gregory

Open-market buys, 24 mo

None

reported

Open-market sales, 24 mo

$17.9M

43 lines

Companies

with Form 4 filings

Latest transaction

Jul 9, 2026

transaction date

Roles and reported holdings

PTCTPTC THERAPEUTICS, INC.
Nov 24, 2025 – Jul 9, 2026
CHIEF TECHNICAL OPS OFFICER
Held directly60,299 sh as of Jul 7, 2026 · Form 4
Held indirectly (latest line)2,737 sh as of Mar 5, 2026 · Form 4
24 months: $17.9M sold

Transaction history

All 69 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.

Date	Company	Type	Shares	Price	Value	Owned after	Filing
Jul 9, 2026	PTCTCHIEF TECHNICAL OPS OFFICER	Option exerciseCode M · direct	2,464	$46.54	$115K@ $46.54	62,763	Form 4
Jul 7, 2026	PTCTCHIEF TECHNICAL OPS OFFICER	Open-market saleCode S · direct	9,288	$89.44	$831K@ $89.44	60,299	Form 4
Jul 7, 2026	PTCTCHIEF TECHNICAL OPS OFFICER	Open-market saleCode S · direct	11,369	$89.03	$1.0M@ $89.03	69,587	Form 4
Jul 7, 2026	PTCTCHIEF TECHNICAL OPS OFFICER	Open-market saleCode S · direct	3,956	$87.17	$345K@ $87.17	80,956	Form 4
Jul 7, 2026	PTCTCHIEF TECHNICAL OPS OFFICER	Option exerciseCode M · direct	24,613	$39.42	$970K@ $39.42	84,912	Form 4
Jul 6, 2026	PTCTCHIEF TECHNICAL OPS OFFICER	Option exerciseCode M · direct	2,474	$39.42	$98K@ $39.42	62,773	Form 4
Jul 6, 2026	PTCTCHIEF TECHNICAL OPS OFFICER	Open-market saleCode S · direct	10,090	$86.32	$871K@ $86.32	60,299	Form 4
Jul 6, 2026	PTCTCHIEF TECHNICAL OPS OFFICER	Open-market saleCode S · direct	8,786	$85.35	$750K@ $85.35	70,389	Form 4
Jul 6, 2026	PTCTCHIEF TECHNICAL OPS OFFICER	Option exerciseCode M · direct	18,876	$38.10	$719K@ $38.10	79,175	Form 4
Jul 6, 2026	PTCTCHIEF TECHNICAL OPS OFFICER	Open-market saleCode S · direct	385	$86.34	$33K@ $86.34	60,299	Form 4
Jul 6, 2026	PTCTCHIEF TECHNICAL OPS OFFICER	Open-market saleCode S · direct	426	$85.28	$36K@ $85.28	60,684	Form 4
Jul 6, 2026	PTCTCHIEF TECHNICAL OPS OFFICER	Option exerciseCode M · direct	811	$38.10	$31K@ $38.10	61,110	Form 4
Jun 26, 2026	PTCTCHIEF TECHNICAL OPS OFFICER	Option exerciseCode M · direct	7,718	$38.10	$294K@ $38.10	67,855	Form 4
Jun 26, 2026	PTCTCHIEF TECHNICAL OPS OFFICER	Option exerciseCode M · direct	412	$38.10	$16K@ $38.10	60,549	Form 4
Jun 25, 2026	PTCTCHIEF TECHNICAL OPS OFFICER	Option exerciseCode M · direct	100	$39.42	$4K@ $39.42	60,237	Form 4
Jun 25, 2026	PTCTCHIEF TECHNICAL OPS OFFICER	Open-market saleCode S · direct	11,337	$86.51	$981K@ $86.51	60,137	Form 4
Jun 25, 2026	PTCTCHIEF TECHNICAL OPS OFFICER	Open-market saleCode S · direct	8,522	$85.26	$727K@ $85.26	71,474	Form 4
Jun 25, 2026	PTCTCHIEF TECHNICAL OPS OFFICER	Option exerciseCode M · direct	19,859	$38.10	$757K@ $38.10	79,996	Form 4
Jun 25, 2026	PTCTCHIEF TECHNICAL OPS OFFICER	Open-market saleCode S · direct	419	$86.39	$36K@ $86.39	60,137	Form 4
Jun 25, 2026	PTCTCHIEF TECHNICAL OPS OFFICER	Open-market saleCode S · direct	582	$85.24	$50K@ $85.24	60,556	Form 4
Jun 25, 2026	PTCTCHIEF TECHNICAL OPS OFFICER	Option exerciseCode M · direct	1,001	$38.10	$38K@ $38.10	61,138	Form 4
Jun 24, 2026	PTCTCHIEF TECHNICAL OPS OFFICER	Option exerciseCode M · direct	4,922	$38.10	$188K@ $38.10	65,059	Form 4
Jun 24, 2026	PTCTCHIEF TECHNICAL OPS OFFICER	Option exerciseCode M · direct	401	$38.10	$15K@ $38.10	60,538	Form 4
Jun 22, 2026	PTCTCHIEF TECHNICAL OPS OFFICER	Open-market saleCode S · direct	11,619	$81.21	$944K@ $81.21	60,137	Form 4
Jun 22, 2026	PTCTCHIEF TECHNICAL OPS OFFICER	Open-market saleCode S · direct	12,130	$80.61	$978K@ $80.61	71,756	Form 4
Jun 22, 2026	PTCTCHIEF TECHNICAL OPS OFFICER	Option exerciseCode M · direct	23,749	$25.69	$610K@ $25.69	83,886	Form 4
Apr 1, 2026	PTCTCHIEF TECHNICAL OPS OFFICER	Open-market saleCode S · direct	80	$70.30	$6K@ $70.30	60,137	Form 4
Apr 1, 2026	PTCTCHIEF TECHNICAL OPS OFFICER	Open-market saleCode S · direct	12,530	$69.50	$871K@ $69.50	60,217	Form 4
Apr 1, 2026	PTCTCHIEF TECHNICAL OPS OFFICER	Open-market saleCode S · direct	39,393	$68.89	$2.7M@ $68.89	72,747	Form 4
Mar 5, 2026	PTCTCHIEF TECHNICAL OPS OFFICER	Open-market saleCode S · indirect	3,989	$63.38	$253K@ $63.38	2,737	Form 4
Feb 18, 2026	PTCTCHIEF TECHNICAL OPS OFFICER	Open-market saleCode S · indirect	65	$69.36	$5K@ $69.36	6,726	Form 4
Feb 18, 2026	PTCTCHIEF TECHNICAL OPS OFFICER	Open-market saleCode S · direct	3,056	$69.36	$212K@ $69.36	112,140	Form 4
Jan 8, 2026	PTCTCHIEF TECHNICAL OPS OFFICER	Open-market saleCode S · indirect	59	$76.45	$5K@ $76.45	6,791	Form 4
Jan 8, 2026	PTCTCHIEF TECHNICAL OPS OFFICER	Open-market saleCode S · direct	881	$76.45	$67K@ $76.45	115,196	Form 4
Jan 7, 2026	PTCTCHIEF TECHNICAL OPS OFFICER	Open-market saleCode S · indirect	52	$77.48	$4K@ $77.48	6,850	Form 4
Jan 7, 2026	PTCTCHIEF TECHNICAL OPS OFFICER	Open-market saleCode S · direct	1,026	$77.48	$79K@ $77.48	116,077	Form 4
Jan 6, 2026	PTCTCHIEF TECHNICAL OPS OFFICER	Open-market saleCode S · indirect	54	$76.95	$4K@ $76.95	6,902	Form 4
Jan 6, 2026	PTCTCHIEF TECHNICAL OPS OFFICER	Open-market saleCode S · direct	1,279	$76.95	$98K@ $76.95	117,103	Form 4
Jan 2, 2026	PTCTCHIEF TECHNICAL OPS OFFICER	Grant or awardCode A · direct	43,750	—	—	43,750	Form 4
Jan 2, 2026	PTCTCHIEF TECHNICAL OPS OFFICER	Grant or awardCode A · indirect	520	—	—	6,956	Form 4
Jan 2, 2026	PTCTCHIEF TECHNICAL OPS OFFICER	Grant or awardCode A · direct	17,500	—	—	118,382	Form 4
Nov 25, 2025	PTCTCHIEF TECHNICAL OPS OFFICER	Open-market saleCode S · direct	2,621	$84.54	$222K@ $84.54	100,825	Form 4
Nov 25, 2025	PTCTCHIEF TECHNICAL OPS OFFICER	Open-market saleCode S · direct	4,834	$83.39	$403K@ $83.39	103,446	Form 4
Nov 25, 2025	PTCTCHIEF TECHNICAL OPS OFFICER	Open-market saleCode S · direct	3,744	$82.61	$309K@ $82.61	108,280	Form 4
Nov 25, 2025	PTCTCHIEF TECHNICAL OPS OFFICER	Option exerciseCode M · direct	11,399	$33.02	$376K@ $33.02	112,024	Form 4
Nov 25, 2025	PTCTCHIEF TECHNICAL OPS OFFICER	Open-market saleCode S · direct	3,095	$85.15	$264K@ $85.15	100,625	Form 4
Nov 25, 2025	PTCTCHIEF TECHNICAL OPS OFFICER	Open-market saleCode S · direct	9,171	$84.42	$774K@ $84.42	103,720	Form 4
Nov 25, 2025	PTCTCHIEF TECHNICAL OPS OFFICER	Open-market saleCode S · direct	21,844	$83.33	$1.8M@ $83.33	112,891	Form 4
Nov 25, 2025	PTCTCHIEF TECHNICAL OPS OFFICER	Open-market saleCode S · direct	13,514	$82.55	$1.1M@ $82.55	134,735	Form 4
Nov 25, 2025	PTCTCHIEF TECHNICAL OPS OFFICER	Option exerciseCode M · direct	47,624	$33.02	$1.6M@ $33.02	148,249	Form 4
Nov 25, 2025	PTCTCHIEF TECHNICAL OPS OFFICER	Open-market saleCode S · direct	200	$85.37	$17K@ $85.37	100,625	Form 4
Nov 25, 2025	PTCTCHIEF TECHNICAL OPS OFFICER	Open-market saleCode S · direct	1,757	$84.56	$149K@ $84.56	100,825	Form 4
Nov 25, 2025	PTCTCHIEF TECHNICAL OPS OFFICER	Open-market saleCode S · direct	3,663	$83.41	$306K@ $83.41	102,582	Form 4
Nov 25, 2025	PTCTCHIEF TECHNICAL OPS OFFICER	Open-market saleCode S · direct	2,790	$82.82	$231K@ $82.82	106,245	Form 4
Nov 25, 2025	PTCTCHIEF TECHNICAL OPS OFFICER	Option exerciseCode M · direct	8,410	$18.01	$151K@ $18.01	109,035	Form 4
Nov 25, 2025	PTCTCHIEF TECHNICAL OPS OFFICER	Open-market saleCode S · direct	180	$85.17	$15K@ $85.17	100,625	Form 4
Nov 25, 2025	PTCTCHIEF TECHNICAL OPS OFFICER	Open-market saleCode S · direct	289	$84.61	$24K@ $84.61	100,805	Form 4
Nov 25, 2025	PTCTCHIEF TECHNICAL OPS OFFICER	Open-market saleCode S · direct	862	$83.35	$72K@ $83.35	101,094	Form 4
Nov 25, 2025	PTCTCHIEF TECHNICAL OPS OFFICER	Open-market saleCode S · direct	689	$82.63	$57K@ $82.63	101,956	Form 4
Nov 25, 2025	PTCTCHIEF TECHNICAL OPS OFFICER	Option exerciseCode M · direct	2,020	$33.02	$67K@ $33.02	102,645	Form 4
Nov 25, 2025	PTCTCHIEF TECHNICAL OPS OFFICER	Open-market saleCode S · direct	574	$84.67	$49K@ $84.67	100,625	Form 4
Nov 25, 2025	PTCTCHIEF TECHNICAL OPS OFFICER	Open-market saleCode S · direct	990	$83.44	$83K@ $83.44	101,199	Form 4
Nov 25, 2025	PTCTCHIEF TECHNICAL OPS OFFICER	Open-market saleCode S · direct	911	$82.63	$75K@ $82.63	102,189	Form 4
Nov 25, 2025	PTCTCHIEF TECHNICAL OPS OFFICER	Option exerciseCode M · direct	2,475	$18.01	$45K@ $18.01	103,100	Form 4
Nov 24, 2025	PTCTCHIEF TECHNICAL OPS OFFICER	Option exerciseCode M · direct	6,101	$33.02	$201K@ $33.02	106,726	Form 4
Nov 24, 2025	PTCTCHIEF TECHNICAL OPS OFFICER	Option exerciseCode M · direct	21,206	$33.02	$700K@ $33.02	121,831	Form 4
Nov 24, 2025	PTCTCHIEF TECHNICAL OPS OFFICER	Option exerciseCode M · direct	4,715	$18.01	$85K@ $18.01	105,340	Form 4
Nov 24, 2025	PTCTCHIEF TECHNICAL OPS OFFICER	Option exerciseCode M · direct	1,650	$33.02	$54K@ $33.02	102,275	Form 4
Nov 24, 2025	PTCTCHIEF TECHNICAL OPS OFFICER	Option exerciseCode M · direct	1,900	$18.01	$34K@ $18.01	102,525	Form 4

How this page is built

Every row comes from a Form 4 filed with the SEC, which officers, directors and holders of more than 10% of a company’s stock must file within two business days of a trade. Transactions are grouped by the reporting owner’s name as filed (spacing, capitals and punctuation ignored); two different people filing under an identical name would appear together, and one person filing under two spellings appears on two pages.

Open-market totals count code P purchases and code S sales over the last 24 months. The same trade reported on more than one filing is counted once; when another owner (for example a fund and its general partner) reports the identical trade, they are listed beside it. Holdings are the shares owned after the latest purchase, sale, gift or tax-withholding line, shown separately for direct and indirect ownership; an indirect figure is one holding line, not a total across every trust or entity.

This page describes what was filed with the SEC; it is not investment advice or a recommendation to buy or sell any security.