Santtu Seppälä is an investment professional best known publicly as the husband of Suits actress Sarah Rafferty. The couple met while studying at Yale University and have been married since June 2001. Away from his wife’s acting career, Seppälä has built a professional background in investment research, healthcare equities and portfolio management.
He has also been publicly identified as the founder and chief investment officer of Kiitos Capital Management. So, who is Santtu Seppälä? Here’s everything to know about Sarah Rafferty’s husband, career and family life.
Santtu Seppälä Quick Facts
| Field | Details |
|---|---|
| Public name | Santtu Seppälä |
| Full name | Aleksanteri Olli-Pekka Seppälä |
| Profession | Investment professional and portfolio manager |
| Known for | Being Sarah Rafferty’s husband |
| Education | Yale University and the Wharton School |
| Company | Kiitos Capital Management |
| Wife | Sarah Rafferty |
| Marriage date | June 23, 2001 |
| Children | Two daughters, Oona Gray and Iris Friday |
| Background | Finnish family roots |
| Age | Not publicly confirmed |
| Net worth | Not publicly verified |
Who Is Santtu Seppälä?
Santtu Seppälä is a finance professional whose formal name appears in United States investment records as Aleksanteri Ollipekka Seppala. Other public sources render his name as Aleksanteri Olli-Pekka Seppälä, while Santtu is the name generally used in media coverage and professional profiles. Regulatory and company records connect him with investment research, hedge-fund management and global portfolio strategy.
His public recognition comes largely from his marriage to Sarah Rafferty, who played Donna Paulsen on the legal drama Suits. Unlike Rafferty, Seppälä does not work primarily in entertainment and maintains a limited public profile. That distinction is important because many shorter biography pages describe him only as a celebrity spouse, overlooking the professional career he developed independently.
Seppälä has rarely discussed his private life in interviews, and he does not appear to operate a large public-facing social-media presence. Most reliable information about his marriage and family therefore comes from Rafferty’s interviews, established entertainment publications and professional records connected with his work.
He Has Finnish Family Roots
Seppälä is widely described as having Finnish roots, although reliable public sources do not consistently clarify whether he was born in Finland or the United States. His complete name reflects that background, and “Santtu” is commonly used in Finland as a familiar form of Aleksanteri.
Several online biographies publish an exact birthplace, birthday and age, but those claims are not supported consistently by authoritative records. Some sites state that he was born in 1974, while others repeat specific dates without identifying a credible original source. His age should therefore be treated as private or unconfirmed rather than presented as an established fact.
People has reported that Seppälä had an internationally mobile upbringing and lived in several countries while growing up. However, a complete verified list of those countries has not been made publicly available.
Details about his parents, siblings and childhood are also limited. Certain secondary websites identify his father and attach corporate roles to him, but those claims are not sufficiently supported by high-quality public documentation. Seppälä’s family background should consequently be covered only in broad terms.
Santtu Seppälä Studied at Yale and Wharton
Seppälä attended Yale University, where he met Sarah Rafferty. She was pursuing her acting education through the Yale School of Drama, while he followed an academic path that led into business and finance. Their university connection is one of the clearest established details about the beginning of their relationship.
He later earned an MBA from the Wharton School at the University of Pennsylvania, according to his professional biography. The qualification provided a foundation for a career centred on securities research, investment analysis and portfolio management.
Some profiles assign exact graduation years and degree subjects to his Yale education. Although the Yale and Wharton affiliations are well documented, the more specific academic details are not presented consistently across primary sources. A careful biography should distinguish the confirmed institutions from dates or degree descriptions repeated mainly by secondary websites.
He Began His Career in Investment Research
Seppälä built his early career in institutional investment management rather than public-facing banking or financial media. His work involved researching companies and evaluating equities for managed investment portfolios.
Before launching Kiitos Capital Management, he worked at Lazard Asset Management in New York. According to his professional biography, his responsibilities included researching healthcare stocks for international and US investment strategies covering companies of different sizes. That experience helped establish healthcare equities as an important area of his professional expertise.
Healthcare investment research requires assessing companies whose performance may depend on drug development, regulation, clinical results, pricing policy and broader economic conditions. Seppälä’s work in that sector therefore involved more than general stock selection; it required specialised analysis of a complex and highly regulated industry.
Public profiles differ slightly on the length of his time at Lazard, so exact dates should be approached cautiously. What is consistently supported is that the position preceded his move into broader portfolio-management responsibilities.
He Became a Portfolio Manager at Cantillon Capital
Seppälä subsequently joined Cantillon Capital Management in New York. Kiitos’s biography states that he spent approximately five years at the firm, working as both an equity analyst and portfolio manager.
His progression at Cantillon mattered because it represented a move from researching individual investments to helping make decisions across a wider portfolio. He was also associated with the Cantillon Health Fund, extending the healthcare specialisation he had developed at Lazard.
The transition from analyst to portfolio manager generally carries greater responsibility for risk, asset allocation and investment performance. In Seppälä’s case, the experience prepared him to establish and lead his own investment-management operation.
Few mainstream celebrity profiles explain this professional progression. Many simply label him a financial analyst, which is accurate only for part of his career and does not reflect his later work as a portfolio manager and company founder.
He Founded Kiitos Capital Management
Seppälä is publicly identified as the founder and chief investment officer of Kiitos Capital Management. His LinkedIn profile states that he created the hedge fund from the ground up, recruited a six-person team and managed a diversified global portfolio. Because those details come from his own professional account, they should be treated as self-reported career information.
Kiitos’s official biography names him as portfolio manager for Kiitos Global Opportunities. It also confirms his earlier experience at Cantillon Capital Management and Lazard Asset Management.
The company’s public website describes Kiitos as an investment manager and includes disclosures aimed at qualified or accredited investors. The available material indicates that the firm’s strategy has involved global investing supported by fundamental company research.
Seppälä’s exact day-to-day responsibilities in 2026 are not fully documented through current public filings. His professional pages continue to associate him with Kiitos, but publicly accessible regulatory records do not provide a complete real-time picture of the firm’s operations, current assets or investment performance.
That limitation is significant because some biography websites make unsupported claims about the size of the fund, the value of its portfolio or Seppälä’s annual compensation. No reliable public source reviewed for this profile confirms those figures.
His Regulatory History Is Publicly Documented
United States investment-adviser records provide additional evidence of Seppälä’s professional background. His regulatory record identifies him under the name Aleksanteri Ollipekka Seppala and documents previous investment-adviser representative registrations connected with Kiitos entities.
Those registrations are historical rather than currently active. A lack of active individual registration does not necessarily mean that someone has retired or left the investment industry, because registration requirements depend on a person’s exact role, activities and business structure.
The available regulatory material does not establish Seppälä’s personal wealth, current compensation or ownership percentage in Kiitos. It should therefore be used to verify his professional identity and registration history, not to support financial estimates that are not disclosed publicly.
He Met Sarah Rafferty at Yale
Seppälä and Rafferty met while attending Yale University. Their relationship began before Rafferty became widely known for Suits, which premiered in 2011.
The couple’s university connection has remained a central part of public profiles about their marriage. It also shows that their relationship developed before either person’s later career became the main reason for public interest in them.
Some entertainment websites claim that they began dating in a specific year, often 1994. Rafferty has shared an early photograph of them associated with that period, but the precise date when they formally became a couple is not consistently documented by primary sources.
Sarah Rafferty and Santtu Seppälä Married in 2001
Rafferty and Seppälä married on June 23, 2001, at the Roman Catholic Church of St. Mary in Greenwich, Connecticut. The wedding was reported by The New York Times and has since been referenced by People, USA Network and other established publications.
Their marriage began approximately a decade before Rafferty’s breakthrough as Donna Paulsen on Suits. As the series expanded her international profile, Seppälä continued working outside the entertainment industry.
The couple marked their 20th wedding anniversary in 2021, and they reached 25 years of marriage in June 2026. No credible public report indicates that they have separated or divorced.
Rafferty occasionally mentions her husband in anniversary posts or family discussions, but the pair generally keep details of their relationship private. Their public appearances together are selective rather than frequent.
They Have Two Daughters
Seppälä and Rafferty are parents to two daughters: Oona Gray Seppälä and Iris Friday Seppälä. Oona was born in October 2007, while Iris was born in January 2012.
Rafferty has spoken more publicly about motherhood than Seppälä has about fatherhood. She has described her daughters as close, affectionate and funny, while also discussing the importance of open communication and emotional security within the family.
During the production of Suits, which was filmed primarily in Toronto, Rafferty’s work required the family to manage travel and changing routines. Her daughters sometimes visited the set and became familiar with the production environment, including the wardrobe, hair and makeup departments.
They did not regularly watch Suits when they were younger. Rafferty later said they were more interested in watching her family drama My Life with the Walter Boys, which was more appropriate for their age and viewing preferences.
Neither daughter has established a significant public entertainment career. Because they are private family members, details about their current education, residence and personal accounts should not be inferred or published without reliable confirmation.
He Keeps a Low Public Profile
Seppälä occasionally accompanies Rafferty to prominent events, but he does not attend entertainment functions as frequently as many celebrity spouses. One of the couple’s most widely photographed appearances occurred at Prince Harry and Meghan Markle’s wedding in Windsor in May 2018.
He has also appeared with Rafferty at selected premieres, galas and charitable events. Those appearances have contributed to public interest in him, although they have not led him to develop an independent media career.
A LinkedIn page is the clearest public professional profile associated with Seppälä. No comparably prominent verified Instagram, Facebook, X or TikTok account appears to be used by him for regular public communication.
This limited online presence explains why many personal facts about him remain unavailable. It also creates space for poorly sourced biography sites to repeat one another’s claims about his age, height, birthplace and finances.
Is Santtu Seppälä an Actor?
Seppälä is not known as a professional actor. His established career is in finance and investment management.
IMDb lists him in connection with the 2004 Finnish production Trench Road, where he is associated with an additional-crew credit rather than a major acting role. The database also records his marriage to Rafferty and notes that they have two children.
That single credit does not support describing him as an actor, producer or filmmaker. Publications should treat it as a minor production association unless more detailed records emerge.
Santtu Seppälä’s Net Worth Is Not Publicly Verified
Seppälä’s net worth has not been disclosed through audited statements, reliable financial reporting or a public asset declaration. Estimates published by biography and celebrity-finance websites frequently range from several million dollars to approximately $8 million, but those figures do not include a transparent calculation or verifiable source.
His senior positions in investment management indicate that he has had a substantial professional career. However, job titles cannot establish personal wealth because net worth depends on compensation, ownership stakes, investments, property, taxes, debt and other private financial circumstances.
Claims about his annual salary are similarly unsupported. Generic websites often assign compensation based on average salaries for chief investment officers, but such estimates do not prove what Seppälä personally earns.
The accurate description is that his net worth remains unknown. Presenting an exact dollar figure as fact would overstate what is available publicly.
What Is Known About His Current Career?
Seppälä’s current public professional identity remains connected with Kiitos Capital Management. The company website lists him as portfolio manager, while his LinkedIn profile identifies him as founder and chief investment officer.
Some online sources describe him as an executive associated with Angeleno Group. That claim has circulated through secondary profiles, but it is not presented consistently across his current professional materials.
The strongest available evidence therefore supports describing him as an investment professional and Kiitos founder. Claims about a different current employer should be attributed and independently verified before publication.
No major standalone news involving Seppälä was widely reported during 2025 or the first seven months of 2026. Recent public attention has continued to come mainly through Rafferty’s work, the renewed popularity of Suits and interest in the real-life partners of its cast members.
Conclusion
Santtu Seppälä has maintained a largely private life despite being married to a well-known television actress. His verified professional background includes education at Yale and Wharton, investment work at Lazard and Cantillon, and leadership of Kiitos Capital Management.
He and Sarah Rafferty have been married since June 2001 and share two daughters. Important personal details, including his exact age, birthplace and net worth, have not been reliably confirmed publicly.
Frequently Asked Questions
Who is Santtu Seppälä?
Santtu Seppälä is an investment professional and the husband of actress Sarah Rafferty. He has worked in equity research and portfolio management and is publicly identified as the founder of Kiitos Capital Management.
What is Santtu Seppälä’s full name?
His full name is commonly written as Aleksanteri Olli-Pekka Seppälä. United States regulatory records use the unaccented form Aleksanteri Ollipekka Seppala.
What does Sarah Rafferty’s husband do for a living?
He has worked in investment management, healthcare-equity research and portfolio management. His career includes positions at Lazard Asset Management, Cantillon Capital Management and Kiitos Capital Management.
How did Sarah Rafferty meet Santtu Seppälä?
The couple met while studying at Yale University. Rafferty attended the Yale School of Drama, while Seppälä pursued an academic path that led into finance.
How many children do Santtu Seppälä and Sarah Rafferty have?
They have two daughters, Oona Gray Seppälä and Iris Friday Seppälä. Oona was born in 2007 and Iris was born in 2012.
What is Santtu Seppälä’s net worth?
His net worth is not publicly verified. Exact figures published on celebrity-biography websites are estimates and should not be treated as confirmed financial information.
