Mark Elliott Boulding Ptc Therapeutics, Inc. (PTCT) insider trading activity

Mark Elliott Boulding is EXEC. VP AND CLO of PTC THERAPEUTICS, INC.. Currently has a direct ownership of 117,659 shares of PTCT, which is worth approximately $8.86 Million. The most recent transaction as insider was on Jan 07, 2026, when has been sold 4,879 shares (Common Stock) at a price of $77.87 per share, resulting in proceeds of $379,927. This information was disclosed in a Form 4 filing with the Securities and Exchange Commission (SEC).

Shares Held (Direct Ownership) 118K

13.24% 3M change

10.12% 12M change

Total Value Held $8.86 Million

Mark Elliott Boulding Transaction History

Date	Transaction	Value	Shares Traded	Shares Held
Jan 07 2026	SELL Open market or private sale	$379,927 $77.87 p/Share	4,879 Reduced 3.98%	117,659 Common Stock
Jan 07 2026	BUY Exercise of conversion of derivative security	$128,625 $38.1 p/Share	3,376 Added 2.77%	118,410 Common Stock
Jan 06 2026	SELL Open market or private sale	$133,816 $76.95 p/Share	1,739 Reduced 1.44%	119,162 Common Stock
Jan 05 2026	SELL Open market or private sale	$172,080 $75.94 p/Share	2,266 Reduced 1.84%	120,901 Common Stock
Jan 05 2026	BUY Exercise of conversion of derivative security	$89,325 $39.42 p/Share	2,266 Added 1.81%	123,167 Common Stock
Jan 02 2026	BUY Grant, award, or other acquisition	-	17,000 Added 12.33%	120,901 Common Stock
Nov 17 2025	SELL Open market or private sale	$214,977 $76.45 p/Share	2,812 Reduced 2.64%	103,901 Common Stock

Nov 17 2025	BUY Exercise of conversion of derivative security	$72,240 $25.69 p/Share	2,812 Added 2.57%	106,713 Common Stock
Oct 07 2025	SELL Open market or private sale	$215,628 $63.89 p/Share	3,375 Reduced 3.15%	103,901 Common Stock
Oct 07 2025	BUY Exercise of conversion of derivative security	$128,587 $38.1 p/Share	3,375 Added 3.05%	107,276 Common Stock
Oct 06 2025	SELL Open market or private sale	$147,448 $65.07 p/Share	2,266 Reduced 2.13%	103,901 Common Stock
Oct 06 2025	BUY Exercise of conversion of derivative security	$89,325 $39.42 p/Share	2,266 Added 2.09%	106,167 Common Stock
Oct 03 2025	SELL Open market or private sale	$1,488,660 $65.71 p/Share	22,655 Reduced 17.9%	103,901 Common Stock
Oct 03 2025	BUY Exercise of conversion of derivative security	$893,060 $39.42 p/Share	22,655 Added 17.59%	106,166 Common Stock
Sep 12 2025	SELL Open market or private sale	$1,511,731 $61.49 p/Share	24,585 Reduced 19.13%	103,901 Common Stock
Sep 12 2025	BUY Exercise of conversion of derivative security	$936,688 $38.1 p/Share	24,585 Added 19.0%	104,806 Common Stock
Sep 11 2025	SELL Open market or private sale	$1,382,504 $61.0 p/Share	22,664 Reduced 17.91%	103,901 Common Stock
Sep 11 2025	BUY Exercise of conversion of derivative security	$863,498 $38.1 p/Share	22,664 Added 17.56%	106,371 Common Stock
Aug 15 2025	SELL Open market or private sale	$136,655 $48.58 p/Share	2,813 Reduced 2.64%	103,901 Common Stock
Aug 15 2025	BUY Exercise of conversion of derivative security	$72,265 $25.69 p/Share	2,813 Added 2.57%	106,714 Common Stock
May 16 2025	SELL Open market or private sale	$40,635 $46.02 p/Share	883 Reduced 0.84%	103,901 Common Stock
May 16 2025	BUY Exercise of conversion of derivative security	$22,684 $25.69 p/Share	883 Added 0.84%	104,784 Common Stock
May 15 2025	SELL Open market or private sale	$89,081 $46.18 p/Share	1,929 Reduced 1.82%	103,901 Common Stock
May 15 2025	BUY Exercise of conversion of derivative security	$49,556 $25.69 p/Share	1,929 Added 1.79%	105,830 Common Stock
Mar 12 2025	SELL Open market or private sale	$826,803 $53.27 p/Share	15,521 Reduced 13.0%	103,901 Common Stock

MEB

Mark Elliott Boulding

EXEC. VP AND CLO

South Plainfield, NJ

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