Heart Test Laboratories-CW27HSCSWPreferred / convertible
13F holders, Q1 2026 (March 31)3holders
0new positions
0sold out
1famous investor
$0.12avg. 13F price*
At the end of Q1 2026, 3 institutions reported holding Heart Test Laboratories-CW27 (HSCSW) in their 13F filings, unchanged from Q4 2025. 0 opened new positions and 0 sold out. The largest holders were Clear Street Group Inc. ($32K), Citadel Advisors ($22K) and UBS Group AG ($71). One famous investor held it Ken Griffin ( of Citadel Advisors's portfolio).
- Company
- Heart Test Laboratories-CW27
- Filed as
- HEARTSCIENCES INC (Q1 2026)
- CUSIP
- 42254E112
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 0 | $0 |
| Exits | 0 | $0 |
All 13F filers, Q4 2025 → Q1 2026: 586 shares bought and 2,972 shares sold, net −2,386 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 3 holders
| Clear Street Group Inc. | — | No change | 270,770 | $32K |
| Citadel Advisors | — | Reduce -1.5% | 192,587 | $22K |
| UBS Group AG | — | Add +117.2% | 1,086 | $71 |
"% of holder's portfolio" is HSCSW's weight in each manager's 13F, not the share of Heart Test Laboratories-CW27 the manager owns.