CALCIMEDICA INC (CALC) Institutional Shareholders
CALCIMEDICA INC (CALC) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $8.33M in CALC holdings during the latest filing period.
Woodline Partners Lp is currently the largest disclosed institutional shareholder of CALC tracked by InsiderSet, reporting ownership valued at approximately $2.56M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $4.93M, representing an estimated gain of +92.23% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 95% of the total disclosed CALC value among the investors covered in this analysis. Major shareholders include Woodline Partners Lp, Heights Capital Management, Inc, Squadron Capital Management Llc, and several other long-term asset managers with concentrated positions in CALCIMEDICA INC (CALC).
This page ranks the largest institutional CALC shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
31
Total Reported Value
$8.33M
Largest Holder
Woodline Partners Lp
Largest Position
$2.56M
Insider Transactions (90d)
5
Latest Filing Quarter
Q2 2026
New Institutional Positions
48
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Woodline Partners Lp | 0.01% | 2,489,729 | $2,564,421 | $4,929,663 | +$2,365,242 | +92.23% | |
| Heights Capital Management, Inc | 0.37% | 1,556,081 | $1,602,763 | $3,081,040 | +$1,478,277 | +92.23% | |
| Squadron Capital Management Llc | 0.44% | 1,244,864 | $1,282,210 | $2,464,831 | +$1,182,621 | +92.23% | |
| Stempoint Capital Lp | 0.21% | 1,244,864 | $1,195,661 | $2,464,831 | +$1,269,170 | +106.15% | |
| Stonepine Capital Management, Llc | 0.41% | 622,432 | $544,939 | $1,232,415 | +$687,476 | +126.16% | |
| L1 Global Manager Pty Ltd | 0.21% | 248,972 | $256,441 | $492,965 | +$236,524 | +92.23% | |
| Morgan Stanley | 0.00% | 143,245 | $147,543 | $283,625 | +$136,082 | +92.23% | |
| Geode Capital Management, Llc | 0.00% | 110,477 | $113,846 | $218,744 | +$104,898 | +92.14% | |
| Renaissance Technologies LLC | Jim Simons | 0.00% | 97,300 | $100,219 | $192,654 | +$92,435 | +92.23% |
| Vanguard Capital Management Llc | 0.00% | 88,956 | $91,625 | $176,133 | +$84,508 | +92.23% | |
| 180 Wealth Advisors, Llc | 0.01% | 83,400 | $85,902 | $165,132 | +$79,230 | +92.23% | |
| Xtx Topco Ltd | 0.00% | 78,288 | $80,637 | $155,010 | +$74,373 | +92.23% | |
| Hrt Financial Lp | 0.00% | 46,825 | $48,000 | $92,714 | +$44,714 | +93.15% | |
| Vanguard Fiduciary Trust Co | 0.00% | 45,829 | $47,204 | $90,741 | +$43,537 | +92.23% | |
| Susquehanna International Group, Llp | 0.00% | 43,968 | $45,287 | $87,057 | +$41,770 | +92.23% | |
| Rockefeller Capital Management L.P. | 0.00% | 20,000 | $20,600 | $39,600 | +$19,000 | +92.23% | |
| Gsa Capital Partners Llp | 0.00% | 17,469 | $18,000 | $34,589 | +$16,589 | +92.16% | |
| State Street Corp | 0.00% | 17,073 | $17,585 | $33,805 | +$16,220 | +92.24% | |
| Tritonpoint Partners, Llc | 0.00% | 15,119 | $15,573 | $29,936 | +$14,363 | +92.23% | |
| Scientech Research Llc | 0.01% | 15,105 | $15,558 | $29,908 | +$14,350 | +92.23% | |
| Northern Trust Corp | 0.00% | 12,530 | $12,906 | $24,809 | +$11,903 | +92.23% | |
| Sound View Wealth Advisors Group, Llc | 0.00% | 10,000 | $10,300 | $19,800 | +$9,500 | +92.23% | |
| Simplex Trading, Llc | 0.00% | 4,723 | $4,864 | $9,352 | +$4,488 | +92.26% | |
| Tower Research Capital Llc (Trc) | 0.00% | 4,104 | $4,227 | $8,126 | +$3,899 | +92.24% | |
| Brown Brothers Harriman & Co | 0.00% | 308 | $317 | $610 | +$293 | +92.38% | |
| Barclays Plc | 0.00% | 274 | $282 | $543 | +$261 | +92.38% | |
| Osaic Holdings, Inc. | 0.00% | 107 | $110 | $212 | +$102 | +92.60% | |
| Sbi Securities Co., Ltd. | 0.00% | 87 | $90 | $172 | +$82 | +91.40% | |
| Cambridge Investment Research Advisors, Inc. | 0.00% | 60,000 | $62 | $118,800 | +$118,738 | +191512.90% | |
| Ubs Group Ag | 0.00% | 16 | $16 | $32 | +$16 | +98.00% | |
| Wells Fargo & Company/Mn | 0.00% | 10 | $10 | $20 | +$10 | +98.00% |
Frequently asked questions about CALC
Who owns the most CALC stock?
The largest holders of CALC are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for CALCIMEDICA INC (CALC).
Is CALC widely held by superinvestors?
Many widely followed stocks like CALC appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly CALC is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.