Ticker · CUSIP 42222N103
Holders (tracked)
8
Combined shares
1,265,304
Combined value
$29.19M
Last close
$21.73
Quarter
2025Q4
Price · 1Y$21.73-10.50 (-32.57%)H $33.90 · L $19.85 · Avg Vol 236K
Tracked holders · last 8 quarters
Flat over the last 8 quarters.
Price is -5.8% vs the avg quarter-end implied price across tracked holders.
SEC event timeline
15 events
- Ken Griffin (Citadel Advisors) trimmed2026-02-17−115,934 shares · 2025Q4Position
- D.E. Shaw & Co. trimmed2026-02-17−400 shares · 2025Q4Position
- Two Sigma Investments added2026-02-17+57,128 shares · 2025Q4Position
- Izzy Englander (Millennium Mgmt) added2026-02-17+42,124 shares · 2025Q4Position
- T. Rowe Price added2026-02-17+3,067 shares · 2025Q4Position
- AQR Capital Management added2026-02-17+2,736 shares · 2025Q4Position
- Renaissance Technologies trimmed2026-02-12−171,732 shares · 2025Q4Position
- First Eagle Investment Management added2026-02-04+4,300 shares · 2025Q4Position
- Izzy Englander (Millennium Mgmt) trimmed2025-11-14−145,099 shares · 2025Q3Position
- T. Rowe Price added2025-11-14+566 shares · 2025Q3Position
- D.E. Shaw & Co. trimmed2025-11-14−13,209 shares · 2025Q3Position
- Two Sigma Investments added2025-11-14+10,924 shares · 2025Q3Position
- AQR Capital Management trimmed2025-11-14−10,092 shares · 2025Q3Position
- Renaissance Technologies trimmed2025-11-13−9,700 shares · 2025Q3Position
- First Eagle Investment Management added2025-11-12+2,900 shares · 2025Q3Position
Insider activity
No insider transactions in the last 30 days.
Follow-the-investor returns
If you'd copied each holder of HSTM…
Cost basis inferred from each manager's quarter-over-quarter position changes. Sorted by % return on the position they're still holding.
| Investor | First in | Cost basis | Return | Position value today |
|---|---|---|---|---|
| First Eagle Investment Management | 2022Q2 | $24.14 | -10.0% | $9.0M |
| T. Rowe Price | 2017Q1 | $24.27 | -10.5% | $550K |
| D.E. Shaw & Co. | 2016Q1 | $24.67 | -11.9% | $215K |
| Izzy Englander (Millennium Mgmt) | 2016Q1 | $24.97 | -13.0% | $1.4M |
| Renaissance Technologies | 2016Q1 | $25.32 | -14.2% | $10.3M |
| AQR Capital Management | 2016Q2 | $26.49 | -18.0% | $675K |
| Two Sigma Investments | 2016Q3 | $26.68 | -18.6% | $4.8M |
| Ken Griffin (Citadel Advisors) | 2016Q1 | $27.92 | -22.2% | $560K |
Who moved on this name in 2025Q4
Position changes reported for the latest quarter, grouped by direction.
New positions0
—
Added to5
- Two Sigma Investments+57,128$1.3M
- Izzy Englander (Millennium Mgmt)+42,124$972K
- First Eagle Investment Management+4,300$99K
- AQR Capital Management+2,736$63K
- T. Rowe Price+3,067$71
Trimmed3
- Renaissance Technologies−171,732$4.0M
- Ken Griffin (Citadel Advisors)−115,934$2.7M
- D.E. Shaw & Co.−400$9K
Exited0
—
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2022Q1 | 11 | $106.0M |
| 2022Q2 | 12 | $115.1M |
| 2022Q3 | 10 | $114.4M |
| 2022Q4 | 13 | $139.2M |
| 2023Q1 | 12 | $156.9M |
| 2023Q2 | 12 | $136.8M |
| 2023Q3 | 13 | $121.6M |
| 2023Q4 | 10 | $149.7M |
| 2024Q1 | 10 | $153.4M |
| 2024Q2 | 12 | $170.6M |
| 2024Q3 | 10 | $52.6M |
| 2024Q4 | 12 | $49.2M |
| 2025Q1 | 11 | $40.7M |
| 2025Q2 | 8 | $44.7M |
| 2025Q3 | 8 | $40.8M |
| 2025Q4 | 8 | $29.2M |
Who owns HSTM
8 super-investors · 2025Q4
Tracked stake
1.27M
shares
Combined value
$29M
% of shares outstanding
—
shares-out unknown
Quarter action mix
Added5Trim3
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | Renaissance Technologies | 475.5K | $11M |
| 2 | First Eagle Investment Management | 413.7K | $10M |
| 3 | Two Sigma Investments | 219.6K | $5M |
| 4 | Izzy Englander Millennium Mgmt | 64.5K | $1M |
| 5 | AQR Capital Management | 31.1K | $717K |
| 6 | Ken Griffin Citadel Advisors | 25.8K | $595K |
| 7 | T. Rowe Price | 25.3K | $584K |
| 8 | D.E. Shaw & Co. | 9.9K | $228K |
Recent moves
20 transactions
- TRIMD.E. Shaw & Co.−400 · 2025Q4
- +3,067 · 2025Q4
- +2,736 · 2025Q4
- −115,934 · 2025Q4
- +42,124 · 2025Q4
- +57,128 · 2025Q4
- −171,732 · 2025Q4
- +4,300 · 2025Q4
- +10,924 · 2025Q3
- −145,099 · 2025Q3
- −10,092 · 2025Q3
- +566 · 2025Q3
- TRIMD.E. Shaw & Co.−13,209 · 2025Q3
- −9,700 · 2025Q3
- +2,900 · 2025Q3
- TRIMD.E. Shaw & Co.−16,211 · 2025Q2
- −13,896 · 2025Q2
- +96,982 · 2025Q2
- +92,848 · 2025Q2
- +1,612 · 2025Q2
Embed this chart
Paste this iframe anywhere to embed the live HSTM chart.
<iframe src="https://openstocks.me/embed/stocks/HSTM" width="100%" height="480" frameborder="0" loading="lazy" title="HSTM chart by OpenStocks" style="border:0;border-radius:12px;background:transparent"></iframe>Explore related topics
- HSTM insider tradingEvery Form 4 filing by HSTM officers, directors, and 10%+ holders.
- HSTM analyst target pricesWall Street consensus target, analyst-by-analyst breakdown, and revision history.
- Most popular hedge-fund stocksSee where this ticker ranks against the broader smart-money consensus.
- All insider tradingCross-ticker view of where corporate insiders are buying on the open market.
- Congress stock tradesReal-time PTR disclosures filed under the STOCK Act.
- Smart-money signalsComposite signals where institutional, insider and Congress flows converge.