Ticker · CUSIP 42328V876
Holders (tracked)
4
Combined shares
481,789
Combined value
$1.35M
Last close
—
Quarter
2025Q4
Tracked holders · last 8 quarters
+3 vs previous quarter over the last 2.
SEC event timeline
2 events
- Ken Griffin (Citadel Advisors) trimmed2026-02-17−366,368 shares · 2025Q413F
- T. Rowe Price opened position2026-02-17+15,700 shares · 2025Q413F
Insider activity
No insider transactions in the last 30 days.
Who moved on this name in 2025Q4
13F transactions reported for the latest quarter, grouped by direction.
New positions1
- T. Rowe Price+15,700$46
Added to0
—
Trimmed1
- Ken Griffin (Citadel Advisors)−366,368$1.1M
Exited0
—
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2025Q3 | 1 | $10.9M |
| 2025Q4 | 4 | $1.3M |
Who owns HSDT
4 super-investors · 2025Q4
Tracked stake
481.8K
shares
Combined value
$1M
% of shares outstanding
—
shares-out unknown
Quarter action mix
New1Trim3
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | Ken Griffin Citadel Advisors | 362.5K | $1M |
| 2 | Ken Griffin Citadel Advisors | 86.4K | $250K |
| 3 | Ken Griffin Citadel Advisors | 17.2K | $50K |
| 4 | T. Rowe Price | 15.7K | $46 |
Recent moves
2 transactions
- −366,368 · 2025Q4
- +15,700 · 2025Q4
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