Exhibit 12.1

PTC Inc.

Statement of Computation of Ratio of Earnings to Fixed Charges

(in thousands, except ratios)

	Three Months Ended					Year Ended September 30,
	January 2, 2016			January 3, 2015		2015		2014		2013		2012		2011
Earnings:
Income (loss) before income taxes	$	(19,545	)	$	34,407	$	26,525	$	186,112	$	126,234	$	120,736	$	104,548
Fixed charges		9,671			7,091		27,274		21,223		19,988		17,644		15,546
Total earnings	$	(9,874	)		$41,498	$	53,799	$	207,335	$	146,222	$	138,380	$	120,094
Fixed charges:
Interest expense	$	6,587		$	3,775	$	14,742	$	8,155	$	6,976	$	4,746	$	3,310
Estimated interest component of rental expense		3,084			3,316		12,532		13,068		13,012		12,898		12,236
Total fixed charges	$	9,671		$	7,091	$	27,274	$	21,223	$	19,988	$	17,644	$	15,546
Ratio of earnings to fixed charges(1)		—	(2)		5.9		2.0		9.8		7.3		7.8		7.7

(1) The ratio of earnings to fixed charges is calculated pursuant to the instructions of Item 503 of Regulation S-K and by dividing earnings by fixed charges. For this purpose, “earnings” are determined by adding fixed charges to our income (loss) before income taxes, and “fixed charges” consists of interest expense on our indebtedness as well as the estimated interest component of rental expense (one-third of rent expense, a reasonable approximation of the interest factor) under our operating leases.

(2) Our earnings were insufficient to cover our fixed charges during the three months ended January 2, 2016 by $19.5 million. Our loss before income taxes for the three months ended January 2, 2016 included a $37.1 million restructuring charge.