Heart Test Laboratories-CW27HSCSWPreferred / convertible
13F holders, Q4 2025 (December 31)3holders
0new positions
0sold out
1famous investor
$0.06avg. 13F price*
At the end of Q4 2025, 3 institutions reported holding Heart Test Laboratories-CW27 (HSCSW) in their 13F filings, unchanged from Q3 2025. 0 opened new positions and 0 sold out. The largest holders were Clear Street Group Inc. ($19K), Citadel Advisors ($9K) and UBS Group AG ($23). One famous investor held it Ken Griffin ( of Citadel Advisors's portfolio).
- Company
- Heart Test Laboratories-CW27
- Filed as
- HEARTSCIENCES INC (Q4 2025)
- CUSIP
- 42254E112
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q3 2025 → Q4 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 0 | $0 |
| Exits | 0 | $0 |
All 13F filers, Q3 2025 → Q4 2025: 18,539 shares sold, net −18,539 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 3 holders
| Clear Street Group Inc. | — | No change | 270,770 | $19K |
| Citadel Advisors | — | Reduce -8.7% | 195,559 | $9K |
| UBS Group AG | — | No change | 500 | $23 |
"% of holder's portfolio" is HSCSW's weight in each manager's 13F, not the share of Heart Test Laboratories-CW27 the manager owns.