CALCIMEDICA INC (CALC) Institutional Ownership Changes & 13F Activity
CALCIMEDICA INC (CALC). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q2 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Woodline Partners Lp, Heights Capital Management, Inc, Squadron Capital Management Llc, Stempoint Capital Lp, and Stonepine Capital Management, Llc.
| Institution | Type | Change in shares | Change Position % | Shares | Reported stock balance | Portfolio quarter | Filing date |
|---|---|---|---|---|---|---|---|
| Stonepine Capital Management, Llc | Buy | +622,432 | — | 622,432 | $544.94K | Q2 2026 | Aug 17, 2026 |
| Woodline Partners Lp | Buy | +2,489,729 | — | 2,489,729 | $2.56M | Q2 2026 | Aug 14, 2026 |
| Heights Capital Management, Inc | Buy | +1,556,081 | — | 1,556,081 | $1.60M | Q2 2026 | Aug 14, 2026 |
| Squadron Capital Management Llc | Buy | +1,244,864 | — | 1,244,864 | $1.28M | Q2 2026 | Aug 14, 2026 |
| Stempoint Capital Lp | Buy | +1,244,864 | — | 1,244,864 | $1.20M | Q2 2026 | Aug 14, 2026 |
| Xtx Topco Ltd | Buy | +78,288 | — | 78,288 | $80.64K | Q2 2026 | Aug 14, 2026 |
| Scientech Research Llc | Buy | +15,105 | — | 15,105 | $15.56K | Q2 2026 | Aug 14, 2026 |
| Susquehanna International Group, Llp | Buy | +13,252 | +43.1% | 43,968 | $45.29K | Q2 2026 | Aug 14, 2026 |
| Hrt Financial Lp | Buy | +7,126 | +18.0% | 46,825 | $48.00K | Q2 2026 | Aug 14, 2026 |
| Barclays Plc | Buy | +274 | — | 274 | $282.00 | Q2 2026 | Aug 14, 2026 |
| L1 Global Manager Pty Ltd | Buy | +248,972 | — | 248,972 | $256.44K | Q2 2026 | Aug 13, 2026 |
| Morgan Stanley | Buy | +143,245 | — | 143,245 | $147.54K | Q2 2026 | Aug 13, 2026 |
| Vanguard Capital Management Llc | Sell | -80,154 | -47.4% | 88,956 | $91.63K | Q2 2026 | Aug 13, 2026 |
| Renaissance Technologies LLC | Sell | -30,775 | -24.0% | 97,300 | $100.22K | Q2 2026 | Aug 13, 2026 |
| Rockefeller Capital Management L.P. | Buy | +15,000 | +300.0% | 20,000 | $20.60K | Q2 2026 | Aug 13, 2026 |
| Ubs Group Ag | Sell | -1 | -5.9% | 16 | $16.00 | Q2 2026 | Aug 13, 2026 |
| Geode Capital Management, Llc | Sell | -12,905 | -10.5% | 110,477 | $113.85K | Q2 2026 | Aug 12, 2026 |
| Simplex Trading, Llc | Sell | -8,093 | -63.1% | 4,723 | $4.86K | Q2 2026 | Aug 12, 2026 |
| Tower Research Capital Llc (Trc) | Buy | +2,082 | +103.0% | 4,104 | $4.23K | Q2 2026 | Aug 11, 2026 |
| Gsa Capital Partners Llp | Sell | -6,308 | -26.5% | 17,469 | $18.00K | Q2 2026 | Aug 06, 2026 |
| 180 Wealth Advisors, Llc | Sell | -43,100 | -34.1% | 83,400 | $85.90K | Q2 2026 | Jul 07, 2026 |
| First Manhattan Co. Llc. | Sell | -13,226 | -100.0% | 0 | $0.00 | Q2 2026 | May 15, 2026 |
| Virtu Financial Llc | Sell | -17,895 | -100.0% | 0 | $0.00 | Q2 2026 | May 14, 2026 |
| Stonehage Fleming Financial Services Holdings Ltd | Sell | -53,703 | -100.0% | 0 | $0.00 | Q2 2026 | May 13, 2026 |
| Jane Street Group, Llc | Sell | -178,515 | -100.0% | 0 | $0.00 | Q2 2026 | May 12, 2026 |
| Bnp Paribas Financial Markets | Sell | -3 | -100.0% | 0 | $0.00 | Q2 2026 | May 12, 2026 |
| Ground Swell Capital, Llc | Sell | -12,307 | -100.0% | 0 | $0.00 | Q2 2026 | Apr 21, 2026 |
Frequently asked questions about CALC activity
Which institutional owners are buying CALC?
Institutional owners buying CALC include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.
What does "buy" mean in CALC activity?
"Buy" means an investor increased their reported position in CALC compared to the prior reporting period. This reflects growing exposure to CALCIMEDICA INC (CALC) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in CALC increasing?
Institutional interest in CALC can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.
Related CALC Institutional Insights
- CALC Overview
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- CALC Top Institutional Shareholders
- Healthcare Sector Institutional Ownership
- Healthcare Sector Portfolio Overlap
- Institutional Portfolio Overlap & Shared Holdings
- Most Bought Healthcare Stocks By Institutional Investors
- Most Sold Healthcare Stocks By Institutional Investors
- CALC Insider Trading & SEC Form 4 Activity
- CALC Articles
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