Thank you, Marvin, and to everyone for joining today. Here are some key financial highlights for our fourth quarter and year-end 2020 results. Total revenue for the 3 months ended December 31, 2020, was $158,000, a decrease of 84.4% compared to $1,013,000 during the 3 months ended December 31, 2019. Revenues were negatively impacted by our settlement of litigation with a former distributor relating to a 2014 transaction, as Marvin alluded to earlier. Per the settlement, we agreed to pay them $580,000. Under U.S. GAAP, we are required to charge that amount against sales. Excluding such impact, revenue was $738,000, a decrease of 27.1% compared to $1,013,000 during the similar period in 2019.
This decrease was driven mainly by a 25.2% decrease in sales volume of CGuard EPS from $921,000 during the 3 months ended December 31, 2019, to $689,000 during the 3 months ended December 31, 2020, mainly due to the postponement of procedures from CGuard EPS, which are generally scheduled or nonemergency procedures as hospitals shifted resources to patients affected by COVID-19. The 46.7% decrease in sales volume with MGuard EPS from $92,000 during the 3 months ended December 31, 2019, to $49,000 during the 3 months ended December 31, 2020, was also mainly due to the impact of COVID-19, as previously mentioned.
For the 3 months ended December 31, 2020, we had a gross loss of $390,000 compared to a gross profit of $259,000 during the 3 months ended December 31, 2019. This decrease in gross profit resulted from the impact of the $580,000 settlement with our former distributor as well as a $79,000 decrease in revenue less the related material and labor costs. This decrease was partially offset by a decrease of $10,000 in miscellaneous expenses during the 3 months ended December 31, 2020.
Gross margin decreased by a negative 247% during the 3 months ended December 31, 2020 from 25.6% during the 3 months ended December 31, 2019, driven mainly by the negative effect of the gross margin of 273% due to the $580,000 settlement with our former distributor.
Total operating expenses for the quarter ended December 31, 2020, were $3,328,000, an increase of 20.4% compared to $2,765,000 for the same period in 2019. This increase was primarily due to increases of $363,000 in compensation expenses we added as we added resources to our clinical, product development and sales infrastructure, a $134,000 of Directors' and Officers' Liability Insurance expense due to recent economic changes in the insurance industry, $96,000 in development expenses associated with CGuard EPS, mainly related to the new advanced delivery system and associated accessories and $75,000 in miscellaneous expenses. These increases were partially offset by a decrease in travel expenses of $105,000 in light of restrictions imposed by governments worldwide in order to mitigate the spread of COVID-19.
For the 3 months ended December 31, 2020, financial expenses increased to $131,000 from $27,000 during the 3 months ended December 31, 2019. This increase in financial expenses primarily resulted from changes in exchange rates. Net loss for the fourth quarter of 2020 totaled $3,853,000 or $0.10 per basic and diluted share compared to a net loss of $2,557,000 or $0.57 per basic and diluted share for the same period in 2019.
For the 12 months ended December 31, 2020, revenue was $2,485,000, a decrease of 33.2% and compared to $3,721,000 during the 12 months ended December 31, 2019. Revenue was negatively impacted by 15.6% due to the previously mentioned settlement of our litigation with the former distributor.
As I previously stated, under U.S. GAAP, we were required to charge this $580,000 settlement against sales. Excluding such impact, revenue was $3,065,000, a decrease of 17.6% compared to $3,721,000 during the 12 months ended December 31, 2019. This decrease was driven mainly by a 15.3% decrease in sales volume of CGuard EPS from $3,265,000 during the 12 months ended December 31, 2019, to $2,764,000 during the 12 months ended December 31, 2020, mainly due to the postponement of procedures with CGuard EPS, which were generally -- as I said, which are generally scheduled or nonemergency procedures as hospitals shifted their resources to patients affected by COVID-19.
There was also a 34% decrease in sales volume of MGuard Prime EPS from $456,000 during the 12 months ended December 31, 2019, to $301,000 during the 12 months ended December 31, 2020, also mainly due to the impact of COVID-19.
For the 12 months ended December 31, 2020, gross profit decreased by 89% to $83,000 compared to $756,000 for the same period in 2019. Once again, this decrease in gross profit resulted from the impact of the $580,000 settlement with our former distributor as well as $198,000 decrease in revenue less the related material and labor costs. This decrease was partially offset by a decrease of $69,000 in expenses related to upgrades made to our production facility during the year ended December 31, 2019, which did not reoccur during the year ended December 31, 2020 and a decrease of $36,000 in miscellaneous expenses.
Gross margin decreased to 3.3% during the year of 2020 from 20.3% during the year ended 2019, driven mainly by a negative effect on gross margin of 18.3% due to the settlement of our former distributor, which was offset by a 1.3% gross margin increase due to the upgrades made to our production facilities and miscellaneous expenses as mentioned above or previously.
Total operating expenses for the 12 months ended December 31, 2020, were $10,463,000, a decrease of 1% compared to $10,572,000 for the same period in 2019. This decrease was primarily due to a decrease of $861,000 in clinical expenses associated with CGuard EPS, mainly related to the IDE approval process for which an approval from the FDA was received on September 8, 2020; $421,000 in travel expenses in light of the restrictions imposed by governments relating to COVID-19; $354,000 due to the settlement expenses that were paid to a former service provider pursuant to a settlement agreement during the 12 months ended 2019; $136,000 in quality assurance and regulatory expenses related to the development of various projects; and $129,000 in promotional expenses, primarily related for a outreach program or rebuilding our social media infrastructure in 2019.
These decreases were partially offset by an increase in expenses of $531,000 in development expenses related to CGuard EPS new advanced delivery system and accessories, $400,000 due to the settlement agreement with the underwriter of our prior offering paid during the 12 months ended 2020, $386,000 in compensation expenses as we added resources to our clinical, product development and sales infrastructure and $249,000 in our Directors' and Officers' Liability Insurance expenses, partially due to recent changes in the insurance industry and $177,000 in regulatory expenses required for new regulatory standards set by the European Union and $49,000 in miscellaneous expenses.
Financial expenses for the 12 months ended December 31, 2020, was $160,000 compared to $200,000 for the same period in 2019. The decrease in financial expenses primarily resulted from changes in exchange rates. Net loss for the 12 months ended December 31, 2020, totaled $10,544,000 or $0.46 per basic and diluted share compared to a net loss of $10,040,000 or $4.80 per basic and diluted share for the same period in 2019.
As of December 31, 2020, cash and cash equivalents were $12,645,000 compared to $5,514,000 as of December 31, 2019. During the first quarter of 2021, the company raised a net of $35.1 million through various equity transactions.
With that, I'd now like to turn the call over for questions. Operator, please go ahead.