CalciMedica CALC Institutional Ownership

Updated Oct 10, 2026

CalciMedica, Inc. (NASDAQ:CALC) counted 31 institutional investors among its 13F-reported shareholders for the quarter ended June 30, 2026.

• These investors held 31.98% of CalciMedica's outstanding shares at the end of Q2 2026, up from 6.94% in Q1 2026.
• Total shares held in CalciMedica rose 795.26% from Q1 2026, while the number of holders rose 6.90% from Q2 2025.
• Among the 31 holders of CalciMedica, 14 added to their positions, 7 reduced their stakes and 10 left their positions unchanged.
• Combined, institutional investors held 1.97Mn shares of CALC as of Q2 2026, up 1.75Mn from the prior quarter and up 1.22Mn from a year earlier.
• Woodline Partners LP held the largest position in CALC at 497.95K shares as of June 30, 2026, or 8.10% of shares outstanding.
• The biggest increases in CALC positions during Q2 2026 came from Rockefeller Capital Management L.P. (+3K shares), Susquehanna International Group, LLP (+2.65K shares), HRT Financial LP (+1.43K shares) and Tower Research Capital LLC (+416 shares).
• Among holders that kept a stake in CalciMedica, the biggest sellers in Q2 2026 were Vanguard Capital Management LLC (-16.03K shares), 180 Wealth Advisors, LLC (-8.62K shares), Renaissance Technologies LLC (-6.16K shares), Geode Capital Management, LLC (-2.58K shares) and Simplex Trading, LLC (-1.62K shares).
• Business Quant data shows the 10 biggest positions in CalciMedica as of Q2 2026 were held by Woodline Partners LP (497.95K shares), Stonepine Capital Management, LLC (425.72K shares), Heights Capital Management, Inc (311.22K shares), Stempoint Capital LP (248.97K shares), Squadron Capital Management LLC (248.97K shares), L1 Global Manager Pty Ltd (49.79K shares), Morgan Stanley (28.65K shares), Geode Capital Management, LLC (22.1K shares), Renaissance Technologies LLC (19.46K shares) and Vanguard Capital Management LLC (17.79K shares).