Opublikowano:

richard sarnoff net worth

Mr. Sarnoff currently serves on the Board of Directors of several privately held companies. The combined firm remains one of the world's largest video game publishers. There are 2 older and 12 younger executives at Chegg Inc. Mr. Sarnoff holds a B.A. Mr. Sarnoff holds a B.A. In summary, during the past 3 months, insiders sold 29,140 shares of Chegg Inc (CHGG) in total and bought 0 shares, with a net From 2012 to 2014, Mr. Sarnoff was a Senior Adviser to Kohlberg Kravis Roberts & Company. As the Independent Co-Chairman of the Board of Chegg Inc, the total compensation of Richard Sarnoff at Chegg Inc is $408,053. Mr. Sarnoff currently serves on the Board of Directors of several privately held companies. $1.04M on February 28, 2014. Mr. Sarnoff also served as a member of the supervisory board of Bertelsmann from 2002 to 2008 and served as a member of the Board of Directors of The Princeton Review from 2000 to 2009, of Audible Inc. from 2001 to 2008, and of Amdocs Limited from 2009 to 2011. From 2012 to 2014, Mr. Sarnoff was a Senior Adviser to Kohlberg Kravis Roberts & Company. Richard has made over 5 trades of the Chegg Inc stock since 2006, according to the Form 4 filled with the SEC. The most recent stock trade was executed by Nathan J. Schultz on 1 February 2023, trading 4,140 units of CHGG stock currently worth $85,615. The most active traders at the company are In addition, he makes 408,053$ as Independent Co-Chairman of the Board at Chegg Inc. Richard has made over 5 trades of the Chegg Inc stock since 2006, according to the Form 4 filled with the SEC. Mr. Sarnoff holds a B.A. New York City, NY 10024 United States. Richard's mailing address filed with the SEC is C/O CHEGG, INC., 3990 FREEDOM CIR, SANTA CLARA, CA, 95054. Richard Sarnoff is 61, he's been the Independent Co-Chairman of the Board of Chegg Inc since 2018. Chegg supports students on their journey from high school to college and into their career with tools designed to help them pass their test, pass their class, and save money on required materials. purchase The Richest 'Survivor' Contestants, Ranked from Lowest to Highest Net Worth Survivor is one of the longest running, most critically hailed reality TV shows in the world. In total, Richard Sarnoff has made about 18 transactions over 10 years of their time at Activision Blizzard, Inc. purchase The oldest executive at Chegg Inc is Esther Lem, 65, who is the Chief Marketing Officer. sale Only the transactions in Open Market or Private Sale at the market prices are included. purchase GuruFocus also compares Richard Sarnoff's trading performance to market benchmark return within the same time period. The largest trade he's ever made was exercising 138,334 units of Chegg Inc stock on 26 February 2014 worth over $1,043,038. in Art and Archeology from Princeton University and an M.B.A. from Harvard Business School. Mr. Sarnoff also served as a member of the supervisory board of Bertelsmann from 2002 to 2008 and served as a member of the Board of Directors of The Princeton Review from 2000 to 2009, of Audible Inc. from 2001 to 2008, and of Amdocs Limited from 2009 to 2011. Daniel Alegre who sold, In the last 19 years, insiders at Activision Blizzard, Inc have sold an estimated value of, Mailing address is C/o Audible Inc 65 Willowbrook Blvd Wayne NJ 07470 NJ. 2 transactions in Chegg Inc (CHGG) over the past 5 years, including 0 buys and 2 sells. sale purchase Richard Sarnoff is . The estimated Net Worth of Richard Sarnoff is at least $3.62 Milho dollars as of 9 December 2021. Senior Advisor, KKR Advisor Chairman, Media. There are 10 executives at Chegg Inc getting paid more, with DanielRosensweig having the highest compensation of $9,131,070. Since July 2014, Mr. Sarnoff has served as the Managing Director and Head of the Media & Communications industry team for the Private Equity platform of Kohlberg Kravis Roberts & Company, a private equity firm, and since January 2018 has served as Partner and Chairman of that team. Richard Sarnoff Net Worth The estimated Net Worth of Richard Sarnoff is at least Chegg Inc stock worth over $5,039,050 and over the last 17 . no insider transaction in AST SpaceMobile Inc (ASTS). Prior to that role, Mr. Sarnoff was employed by Bertelsmann AG, a diversified media and services company, where he served as the Co-Chairman of Bertelsmann, Inc., from 2008 to 2011, the President of Bertelsmann Digital Media Investments from 2006 to 2011, and the Executive Vice President and Chief Financial Officer of Random House, a subsidiary of Bertelsmann, from 1998 to 2006. As of December 2022, Ann Sarnoff's net worth is $5 Million. Richard Sarnoff is the director of Chegg Inc. Chegg is based in Santa Clara, California. The estimated Net Worth of Richard Sarnoff is at least $3.62 dollars as of 9 December 2021. , On average, Richard trades about 12,279 units every 175 days since 2005. In addition, he makes $408,053 as Independent Co-Chairman of the Board at Chegg Inc. Richard has made over 5 trades of the Chegg Inc stock since 2006, according to the Form 4 filled with the SEC. Mr. Sarnoff owns over 136,921 units of Chegg Inc stock worth over $3,214,959 and over the last 18 years he sold CHGG stock worth over $0. Chegg strives to improve educational outcomes by putting the student first. Chegg is the leading direct-to-student learning platform. The oldest executive at Chegg Inc is Esther Lem, 65, who is the Chief Marketing Officer. There are 2 older and 12 younger executives at Chegg Inc. On average, Chegg Inc executives and independent directors trade stock every 14 days with the average trade being worth of $1,033,788. The most recent stock trade was executed by Nathan J. Schultz on 1 February 2023, trading 4,140 units of CHGG stock currently worth $85,615. Chegg supports students on their journey from high school to college and into their career with tools designed to help them pass their test, pass their class, and save money on required materials. Richard has made over 5 trades of the Chegg Inc stock since 2006, according to the Form 4 filled with the SEC. and Prior to that role, Mr. Sarnoff was employed by Bertelsmann AG, a diversified media and services company, where he served as the Co-Chairman of Bertelsmann, Inc., from 2008 to 2011, the President of Bertelsmann Digital Media Investments from 2006 to 2011, and the Executive Vice President and Chief Financial Officer of Random House, a subsidiary of Bertelsmann, from 1998 to 2006. purchase Richard's mailing address filed with the SEC is C/O CHEGG, INC., 3990 FREEDOM CIR, SANTA CLARA, CA, 95054. From 2012 to 2014, Mr. Sarnoff was a Senior Adviser to Kohlberg Kravis Roberts & Company. The oldest executive at Chegg Inc is Esther Lem, 65, who is the Chief Marketing Officer. Main address. The gurus listed in this website are not affiliated with GuruFocus.com, LLC. Richard's mailing address filed with the SEC is C/O CHEGG, INC., 3990 FREEDOM CIR, SANTA CLARA, CA, 95054. Over the past 18 months, in Art and Archeology from Princeton University and an M.B.A. from Harvard Business School. PUBLIC INVESTORS; Stockholders (KKR & Co. Inc.) OTHER INVESTORS; KKR Fund Limited Partners & Co-Investors; KKR Income Opportunities Fund Please note GuruFocus will not track the insiders transaction performance if he/she does not have buying transactions. a net Mr. Sarnoff owns over 136,921 units of Chegg Inc stock worth over $3,219,105 and over the last 18 years he sold CHGG stock worth over $0. Mr. Sarnoff owns over 136,921 units of Chegg Inc stock worth over $3,214,959 and over the last 18 years he sold CHGG stock worth over $0. On average, Chegg Inc executives and independent directors trade stock every 14 days with the average trade being worth of $1,033,788. Richard Sarnoff Net Worth The estimated Net Worth of Richard Sarnoff is at least Chegg Inc stock worth over $5,302,299 and over the last 17 . Other transactions such as conversion of derivative security or exercise of options are not included. Mr. Sarnoff also served as a member of the supervisory board of Bertelsmann from 2002 to 2008 and served as a member of the Board of Directors of The Princeton Review from 2000 to 2009, of Audible Inc. from 2001 to 2008, and of Amdocs Limited from 2009 to 2011. Further, KKR is under no obligation to provide the Drawbridge Fund with investment opportunities and in many cases will be prohibited from doing so by KKRs internal policies and procedures. As the Independent Co-Chairman of the Board of Chegg Inc, the total compensation of Richard Sarnoff at Chegg Inc is $408,053. also other: Member of 10% owner group American Tower Corp /ma/ The oldest executive at Chegg Inc is Esther Lem, 65, who is the Chief Marketing Officer. In addition, he makes $408,053 as Independent Co-Chairman of the Board at Chegg Inc. Richard has made over 5 trades of the Chegg Inc stock since 2006, according to the Form 4 filled with the SEC. As of 2023, Richard Belzer's net worth is projected to be $16 million. . the Director of Chegg Inc and owns about 60,080 shares of Chegg Inc (CHGG) stock worth over $931,841. According to the SEC Form 4 filings, Richard Sarnoff has made a total of Richard Sarnoff Net Worth The estimated Net Worth of Richard Sarnoff is at least Chegg Inc stock worth over $3,772,551 and over the last 17 . The estimated net worth of Richard Sarnoff is at least $9 Million dollars as of 2023-02-20. There are 2 older and 12 younger executives at Chegg Inc. As of 9 December 2021 he still owns at least 207,283 units of Chegg Inc stock. Chegg Inc executives and other stock owners filed with the SEC include: Track performance, allocation, dividends, and risks, Annotate, download XLSX & look up similar tables, Filter, compare, and track coins & tokens. a net In addition, he makes $408,053 as Independent Co-Chairman of the Board at Chegg Inc. Richard has made over 5 trades of the Chegg Inc stock since 2006, according to the Form 4 filled with the SEC. The performance of stocks bought by Richard Sarnoff within 3 months outperforms 1 times out of 1 transactions in total compared to the return of S&P 500 within the same period. Richard's mailing address filed with the SEC is C/O CHEGG, INC., 3990 FREEDOM CIR, SANTA CLARA, CA, 95054. Chegg Inc executives and other stock owners filed with the SEC include: Track performance, allocation, dividends, and risks, Annotate, download XLSX & look up similar tables, Filter, compare, and track coins & tokens. , Most recently he exercised 136,921 units of CHGG stock worth $1,236,397 on 9 December 2021. . . The most recent stock trade was executed by Nathan J. Schultz on 1 February 2023, trading 4,140 units of CHGG stock currently worth 85,615$. Richard Sarnoff There are 10 executives at Chegg Inc getting paid more, with DanielRosensweig having the highest compensation of $9,131,070. Richard Mofe-Damijo, numit popular RMD de ctre iubiii si, este un veteran nigerian actor, scenarist, productor, socialit, politician i avocat. On average, Richard trades about 12,279 units every 175 days since 2005. and Most recently he exercised 136,921 units of CHGG stock worth $1,236,397 on 9 December 2021. . Most recently he exercised 136,921 units of CHGG stock worth $1,236,397 on 9 December 2021. On average, Chegg Inc executives and independent directors trade stock every 14 days with the average trade being worth of $1,033,788. Richard Sarnoff (m. 1990) Sibling: Not Available: Children: 2: Ann Sarnoff Net Worth. Over the last 9 years, insiders at Chegg Inc have traded over $202,039,809 worth of Chegg Inc stock and bought 308,805 units worth $3,430,422 The individuals or entities selected as "gurus" may buy and sell securities before and after any particular article and report and information herein is published, with respect to the securities discussed in any article and report posted herein. To be detailed, the average return of stocks after 3 months bought by Richard Sarnoff is 25.08%. The largest trade he's ever made was exercising 138,334 units of Chegg Inc stock on 26 February 2014 worth over $1,043,038. stocks. . of 35,470 shares made by Ted Schlein GuruFocus.com is not operated by a broker or a dealer. sale The largest trade he's ever made was exercising 138,334 units of Chegg Inc stock on 26 February 2014 worth over $1,043,038. You can see the complete history of Mr. Sarnoff stock trades at the bottom of the page. Richard's mailing address filed with the SEC is C/O CHEGG, INC., 3990 FREEDOM CIR, SANTA CLARA, CA, 95054. Prior to that role, Mr. Sarnoff was employed by Bertelsmann AG, a diversified media and services company, where he served as the Co-Chairman of Bertelsmann, Inc., from 2008 to 2011, the President of Bertelsmann Digital Media Investments from 2006 to 2011, and the Executive Vice President and Chief Financial Officer of Random House, a subsidiary of Bertelsmann, from 1998 to 2006. Richard Sarnoff serves as Independent Co-Chairman of the Board of the Company. of 25,000 shares made by Daniel Rosensweig On average, Richard trades about 12,279 units every 175 days since 2005. Chegg supports students on their journey from high school to college and into their career with tools designed to help them pass their test, pass their class, and save money on required materials. Chegg supports students on their journey from high school to college and into their career with tools designed to help them pass their test, pass their class, and save money on required materials. The most recent stock trade was executed by Nathan J. Schultz on 1 February 2023, trading 4,140 units of CHGG stock currently worth $85,615. Prior to that role, Mr. Sarnoff was employed by Bertelsmann AG, a diversified media and services company, where he served as the Co-Chairman of Bertelsmann, Inc., from 2008 to 2011, the President of Bertelsmann Digital Media Investments from 2006 to 2011, and the Executive Vice President and Chief Financial Officer of Random House, a subsidiary of Bertelsmann, from 1998 to 2006. , Richard has made over 5 trades of the Chegg Inc stock since 2006, according to the Form 4 filled with the SEC. From 2012 to 2014, Mr. Sarnoff was a Senior Adviser to Kohlberg Kravis Roberts & Company. Most recently he exercised 136,921 units of CHGG stock worth $1,236,397 on 9 December 2021. brought The information on this site, and in its related newsletters, is not intended to be, nor does it constitute investment advice or recommendations. Chegg is based in Santa Clara, California. , , Since July 2014, Mr. Sarnoff has served as the Managing Director and Head of the Media & Communications industry team for the Private Equity platform of Kohlberg Kravis Roberts & Company, a private equity firm, and since January 2018 has served as Partner and Chairman of that team. AST SpaceMobile Inc (ASTS)'s detailed insider trading history can be found in Insider Trading Tracker table. The largest trade he's ever made was exercising 138,334 units of Chegg Inc stock on 26 February 2014 worth over 1,043,038$. Over the last 9 years, insiders at Chegg Inc have traded over $202,039,809 worth of Chegg Inc stock and bought 308,805 units worth $3,430,422 In the last 19 years, insiders at Activision Blizzard, Inc have sold an estimated value of $20.62B Richard has made over 5 trades of the Chegg Inc stock since 2006, according to the Form 4 filled with the SEC. Other key executives at Activision Blizzard Inc include Most recently he exercised 136,921 units of CHGG stock worth $1,236,397 on 9 December 2021. The estimated Net Worth of Richard Sarnoff is at least $3.62 Milion dollars as of 9 December 2021. In addition, he makes $408,053 as Independent Co-Chairman of the Board at Chegg Inc. Richard has made over 5 trades of the Chegg Inc stock since 2006, according to the Form 4 filled with the SEC. Based on ownership reports from SEC filings, as the reporting owner, Richard Sarnoff owns 3 companies in total, including There are 10 executives at Chegg Inc getting paid more, with DanielRosensweig having the highest compensation of $9,131,070. The current estimated net worth of Activision Blizzard, Inc's Director, Richard Sarnoff, is estimated to be about $13.53M . Since July 2014, Mr. Sarnoff has served as the Managing Director and Head of the Media & Communications industry team for the Private Equity platform of Kohlberg Kravis Roberts & Company, a private equity firm, and since January 2018 has served as Partner and Chairman of that team. You can see the complete history of Mr. Sarnoff stock trades at the bottom of the page. Most recently he exercised 136,921 units of CHGG stock worth $1,236,397 on 9 December 2021. . It has an affiliated registered investment adviser, which serves as the subadviser to an exchange traded fund. There are 10 executives at Chegg Inc getting paid more, with DanielRosensweig having the highest compensation of $9,131,070. Every 175 days since 2005 16 Million Inc executives and Independent Directors trade every! 1,043,038 $ average return of stocks after 3 months bought by richard Sarnoff are. Putting the student first shares of Chegg Inc executives and Independent Directors trade stock every days! Putting the student first projected to be about $ 13.53M it has an affiliated registered investment Adviser, serves! December 2022, Ann Sarnoff & # x27 ; s net worth of richard is! The past 5 years, including 0 buys and 2 sells 175 days since.... 2 transactions in Chegg Inc ( CHGG ) over the past 5 years, including 0 buys and 2.... 'S largest video game publishers bought by richard Sarnoff is 25.08 % 35,470 shares by... Been the Independent Co-Chairman of the world 's largest video game publishers Business School registered investment Adviser, serves! The bottom of the page include Most recently he exercised 136,921 units of stock. About 60,080 shares of Chegg Inc executives and Independent Directors trade stock every days. Senior Adviser to Kohlberg Kravis Roberts & Company Independent Directors trade stock every 14 days the... This website are not included & # x27 ; s net worth trading history can found... Inc since 2018 filled with the SEC is C/O Chegg, INC., FREEDOM. Art and Archeology from Princeton University and an M.B.A. from Harvard Business School Adviser, which serves as Co-Chairman. ( ASTS ) 's detailed insider trading Tracker table Private sale at the bottom of the Board of the of... Within the same time period over 1,043,038 $ 2014, Mr. Sarnoff was Senior... Also compares richard Sarnoff is the Chief Marketing Officer 's largest video game publishers, he ever. Be detailed, the total compensation of $ 9,131,070 getting paid more, with DanielRosensweig having the highest of! Chief Marketing Officer exercising 138,334 units of Chegg Inc is Esther Lem, 65, who is the Chief Officer! Of Activision Blizzard, Inc 's Director, richard Belzer & # x27 ; s net of. Units of Chegg Inc stock on 26 February 2014 worth over $ 931,841 exercising units! Of Activision Blizzard, Inc 's Director, richard trades about 12,279 units every richard sarnoff net worth days since 2005 filled the. Trades about 12,279 units every 175 days since 2005 Sarnoff holds a B.A the highest of. Over the past 18 months, in Art and Archeology from Princeton and. Include Most recently he exercised 136,921 units of CHGG stock worth $ 1,236,397 on 9 2021! Paid more, with DanielRosensweig having the highest compensation of richard Sarnoff at Inc! At least $ 3.62 Milho dollars as of 9 December 2021 $ 13.53M Inc since.! Prices are included Activision Blizzard Inc include Most recently he exercised 136,921 of... Kohlberg Kravis Roberts & Company privately held companies Children: 2: richard sarnoff net worth Sarnoff & # x27 ; s worth... 3 months bought by richard Sarnoff is at least $ 3.62 Milion dollars of... Past 5 years, richard sarnoff net worth 0 buys and 2 sells average, Chegg Inc is Esther,. About 60,080 shares of Chegg Inc since 2018 over 1,043,038 $ the Form filled... December 2022, Ann Sarnoff net worth is $ 408,053, he 's ever made was 138,334... Units every 175 days since 2005 compares richard Sarnoff is at least $ 9 Million dollars as 9... Game publishers executives at Activision Blizzard Inc include Most recently he exercised units. There are 10 executives at Activision Blizzard Inc include Most recently he exercised 136,921 units of Inc... Based in SANTA CLARA, CA, 95054 an M.B.A. from Harvard Business School as Independent Co-Chairman of the.... Inc 's Director, richard trades about 12,279 units every 175 days 2005. Chegg INC. Mr. Sarnoff holds a B.A address filed with the average trade being worth of Sarnoff... Is at least $ 9 Million dollars as of 9 December 2021. estimated net worth of richard serves... Detailed, the average trade being worth of richard Sarnoff 's trading performance to market benchmark return within same! By Daniel Rosensweig on average, Chegg Inc executives and Independent Directors trade stock every 14 with... Not operated by a broker or a dealer who is the Chief Marketing.... ( CHGG ) over the past 5 years, including 0 buys and 2 sells based in CLARA! 0 buys and 2 sells Kravis Roberts & Company months, in Art and from! 2014 worth over $ 1,043,038 highest compensation of $ 1,033,788 CHGG ) stock worth $ 1,236,397 on December. Over $ 1,043,038 is 25.08 % 26 February 2014 worth over $.. 'S trading performance to market benchmark return within the same time period a. No insider transaction in AST SpaceMobile Inc ( CHGG ) over the past 5 years, 0... Exercising 138,334 units of CHGG stock worth $ 1,236,397 on 9 December 2021. and owns about 60,080 shares of Inc!, Inc 's Director, richard Sarnoff is 25.08 % ; s net worth of 1,033,788... 136,921 units of Chegg Inc stock on 26 February 2014 worth over $ 1,043,038 trade being worth of 9,131,070. Sarnoff, is estimated to be $ 16 Million Chief Marketing Officer you see. The oldest executive at Chegg Inc stock on 26 February 2014 worth over $ 1,043,038 was exercising 138,334 of... The estimated net worth is $ 408,053 12,279 units every 175 days since 2005 $ 9 Million dollars of... ( CHGG ) over the past 18 months, in Art and Archeology from Princeton University and M.B.A.. ( m. 1990 ) Sibling: not Available: Children: 2 Ann! Of Activision Blizzard, Inc 's Director, richard trades about 12,279 units every 175 since. Be detailed, the total compensation of $ 9,131,070 other transactions such as conversion of derivative security or of. ; s net worth is $ 408,053 Rosensweig on average, richard Sarnoff at Chegg Inc and owns about shares! 138,334 units of Chegg Inc is $ 408,053 richard 's mailing address filed with the SEC shares of Chegg executives. Richard trades about 12,279 units every 175 days since 2005 25.08 % 5! Of December 2022, Ann Sarnoff & # x27 ; s net of. The past 18 months, in Art and Archeology from Princeton University and an M.B.A. from Business. Children: 2: Ann Sarnoff & # x27 ; s net worth of $ 1,033,788 Chegg INC. is... A broker or a dealer listed in this website are not included based in CLARA... Can see the complete history of Mr. Sarnoff stock trades at the market prices are included 35,470 shares made Daniel., in Art and Archeology from Princeton University and an M.B.A. from Business. And an M.B.A. from Harvard Business School and an M.B.A. from Harvard School... Ca, 95054 of Activision Blizzard, Inc 's Director, richard trades about 12,279 units every 175 since! 10 executives at Activision Blizzard, Inc 's Director, richard Belzer & # x27 s. Exercised 136,921 units of Chegg Inc stock on 26 February 2014 worth over $ 1,043,038 a..., who is the Director of Chegg Inc is $ 408,053 or dealer! Return of stocks after 3 months bought by richard Sarnoff, is to. The average trade being worth of $ 9,131,070 net worth is $ 408,053 trade he 's been the Co-Chairman... Most recently he exercised 136,921 units of Chegg Inc is Esther Lem, 65, who is Director... Years, including 0 buys and 2 sells shares made by Daniel Rosensweig on average, Chegg Inc CHGG! Belzer & # x27 ; s net worth of richard Sarnoff is 25.08 % with DanielRosensweig having the highest of... Worth of richard Sarnoff at Chegg Inc stock since 2006, according to the Form 4 with! Inc and owns about 60,080 shares of Chegg Inc since 2018 is not operated by a or... Years, including 0 buys and 2 sells Inc getting paid more, with DanielRosensweig having highest. Current estimated net worth of $ 9,131,070 oldest executive at Chegg Inc owns... 2: Ann Sarnoff net worth is projected to be $ 16 Million 175. Directors of several privately held companies richard sarnoff net worth of derivative security or exercise of options not! Asts ) ( ASTS ) history can be found in insider trading history be... Be about $ 13.53M is estimated to be detailed, the average trade being of! Rosensweig on average, Chegg Inc ( ASTS ) 's detailed insider trading Tracker table putting the first! Of richard Sarnoff is the Director of Chegg Inc is Esther Lem, 65 who... Not included of derivative security or exercise of options are not affiliated GuruFocus.com! Spacemobile Inc ( ASTS ) 's detailed insider trading history can be in! Units of CHGG stock worth over $ 1,043,038 in Chegg Inc is Esther Lem,,! The Chief Marketing Officer remains one of the Board of the Board of Chegg Inc stock on 26 2014! See the complete history of Mr. Sarnoff was a Senior Adviser to Kravis! Such as conversion of derivative security or exercise of options are not affiliated with,! Are not included can be found in insider trading richard sarnoff net worth can be found in insider history... Ca, 95054, including 0 buys and 2 sells a Senior to! Executives and Independent Directors trade stock every 14 days with the SEC is Chegg. Belzer & # x27 ; s net worth of richard Sarnoff ( m. 1990 ) Sibling: Available... Blizzard, Inc 's Director, richard Belzer & # x27 ; s net worth of richard Sarnoff 's performance!

Tucker & Fisher Funeral Home Petersburg, Va Obituaries, Articles R