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Argand appoints Mandell as general counsel and chief compliance officer

Argand Partners has named Catherine Clancy Mandell as general counsel and chief compliance officer. Previously, she was counsel for American Express.

Lynch joins Yukon Partners

Yukon Partners said Sept. 24 that Elliot Lynch has joined the firm as a vice president. Lynch was previously with Shoreview Industries.

Virnig makes partner at Thoma Bravo

Thoma Bravo LLC said Sept. 24 that it promoted Chip Virnig to partner. Virnig was previously a principal.

Abingworth taps Gallagher as a partner for Boston office

UK-based Abingworth, an investment firm focused on life sciences, has named Dr. Brian Gallagher as a partner. Previously, he worked at SR One, the venture capital arm of GlaxoSmithKline, where he was a partner and established the company's Boston office. Gallagher will be based in Abingworth's Boston office.

Walter Capital taps Dundee Sarea’s Sam Ramadori as managing partner

Walter Capital Partners has hired Sam Ramadori as a managing partner, according to a news release. Ramadori joins the firm from Dundee Sarea, a mid-market special-situations investor launched in 2015. Ramadori was one of Dundee Sarea’s managing partners. Previously, Ramadori spent nearly eight years as a vice president in the private equity group of Brookfield Asset Management. Montréal-based Walter Capital was established three years ago by its parent, family office Walter Group of Cos, to invest in the growth strategies of small and midsized companies in a range of industries in Canada. Last December, Walter Group doubled its commitment to the firm to $200 million.

HQ Capital taps Thiessen as business development VP

HQ Capital has named Amy Thiessen as director of business development in North America. Previously, she was a principal at Park Madison Partners.

Meketa Investment expands team with new appointments

Meketa Investment Group has named David Eisenberg and Bradley Regier director of consulting services and director of business management, respectively. Also, earlier this year, the investment consulting firm hired Rita McCusker as a senior vice president and director of client services.

Smith joins Tower Arch Capital

Tower Arch Capital LP said Sept. 20 that Steve Smith has joined the firm as vice president of business development. Smith previously North American self-reliance operations for a non-profit.

Gordon named CEO at Gemini Bioproducts

Gemini Bioproducts LLC, a portfolio company of BelHealth Investment Partners LLC, has appointed Dale Gordon as its CEO. Gordon was previously commercial general manager at GE Healthcare Life Sciences, a unit of GE.

O’Connor, Brubaker join Point72

Gavin O’Connor and Mark Brubaker are joining Point72 as senior executives. O’Connor will become COO and CFO of Point 72, while Brubaker will become chief technology officer. O'Connor most recently was COO of Goldman Sach's investment management division. Brubaker was previously global head of equities technology at Millennium Partners.