Marcos attended Don Sergio Osmeña Senior Memorial National High School, Inc. and Padre Annibale School in Laoag for his primary education. He then left for the United Kingdom and attended the Worth School for his secondary education from 2006 to 2013. After that, he went to the City, University of London, where he earned a degree in Bachelor of Science in International Relations with honors in 2016.[6] He then earned his master's degree in Developmental Studies at the London School of Economics and Political Science in 2017.[7][8][9][10]
Career
Before running for public office, Marcos worked as a member of the legislative staff of House majority leader and representative Martin Romualdez, his father's cousin, whom he sees as his mentor.[11]
In 2021, before joining the legislative staff of House Majority Leaders, he worked as a consultant for his cousin, Ilocos Norte Governor Matthew Manotoc. His responsibilities included overseeing the efficient distribution of assistance to the people of Ilocos Norte, such as food packs, fishing gear for fishermen, tablets for remote learning, and a COVID recovery assistance program for sari-sari store owners.[12]
Despite being a neophyte congressman, he was elected House senior deputy majority leader in the 19th Congress on July 26, 2022.[16][17]
In late November 2022, Marcos, together with his uncle, House Speaker Martin Romualdez, filed House Bill No. 6398, also known as the Maharlika Investment Fund, which aimed to create a sovereign wealth fund for the Philippines. The legislation drew inspiration from South Korea's own sovereign wealth fund.[18][19] The MIF was approved by the House of Representatives on December 12, 2022.[20] Economist Michael Batu said the bill can help raise money to help the government's programs and achieve development goals, if managed properly.[21]
In February 2025, Marcos was the first to sign the fourth impeachment complaint against Vice President Sara Duterte at the House of Representatives, which ultimately gathered 240 signatures in Congress.[22][23][24]
Second term and House Majority Leader (since 2025)
Leading up to the convention of the 20th Congress, his colleagues were in talks to elect him House majority leader, a move that would received from the Lakas–CMD, the dominant majority party at the time.[25][26] On July 28, 2025, Marcos was elected unopposed to the role, becoming among the youngest holders of the office.[27][28]
^Lamentillo, Anna (April 27, 2022). "Who is Sandro Marcos?". ManilaBulletin.com. Archived from the original on May 14, 2022. Retrieved November 15, 2023.
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