Ticker · CUSIP 427746102
Holders (tracked)
9
Combined shares
15,678,640
Combined value
$20.28M
Last close
—
Quarter
2025Q4
Tracked holders · last 8 quarters
Flat over the last 8 quarters.
SEC event timeline
14 events
- Two Sigma Investments added2026-02-17+307,230 shares · 2025Q413F
- AQR Capital Management trimmed2026-02-17−1,560,389 shares · 2025Q413F
- Ken Griffin (Citadel Advisors) trimmed2026-02-17−613,412 shares · 2025Q413F
- D.E. Shaw & Co. trimmed2026-02-17−83,852 shares · 2025Q413F
- Izzy Englander (Millennium Mgmt) added2026-02-17+6,921,405 shares · 2025Q413F
- Wellington Management exited2026-02-17−525,774 shares · 2025Q413F
- Renaissance Technologies trimmed2026-02-12−939,099 shares · 2025Q413F
- AQR Capital Management added2025-11-14+1,874,940 shares · 2025Q313F
- Izzy Englander (Millennium Mgmt) trimmed2025-11-14−243,834 shares · 2025Q313F
- Two Sigma Investments trimmed2025-11-14−248,303 shares · 2025Q313F
- D.E. Shaw & Co. trimmed2025-11-14−111,807 shares · 2025Q313F
- T. Rowe Price trimmed2025-11-14−2,805,039 shares · 2025Q313F
- Wellington Management added2025-11-14+32,691 shares · 2025Q313F
- Renaissance Technologies added2025-11-13+165,660 shares · 2025Q313F
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 positions0
—
Added to2
- Izzy Englander (Millennium Mgmt)+6,921,405$9.0M
- Two Sigma Investments+307,230$399K
Trimmed4
- AQR Capital Management−1,560,389$2.0M
- Renaissance Technologies−939,099$1.2M
- Ken Griffin (Citadel Advisors)−613,412$797K
- D.E. Shaw & Co.−83,852$109K
Exited1
- Wellington Management−525,774$662K
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2022Q1 | 12 | $4.79B |
| 2022Q2 | 14 | $2.51B |
| 2022Q3 | 13 | $58K |
| 2022Q4 | 15 | $34.7M |
| 2023Q1 | 15 | $18.9M |
| 2023Q2 | 12 | $11.4M |
| 2023Q3 | 9 | $8.9M |
| 2023Q4 | 8 | $15.2M |
| 2024Q1 | 11 | $32.2M |
| 2024Q2 | 11 | $64.6M |
| 2024Q3 | 10 | $23.5M |
| 2024Q4 | 9 | $14.5M |
| 2025Q1 | 11 | $29.8M |
| 2025Q2 | 9 | $21.0M |
| 2025Q3 | 9 | $15.3M |
| 2025Q4 | 9 | $20.3M |
Who owns HRTX
9 super-investors · 2025Q4
Tracked stake
15.68M
shares
Combined value
$20M
% of shares outstanding
—
shares-out unknown
Quarter action mix
Added2Trim6Held1
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | Izzy Englander Millennium Mgmt | 7.17M | $9M |
| 2 | D.E. Shaw & Co. | 3.00M | $4M |
| 3 | Ken Griffin Citadel Advisors | 2.10M | $3M |
| 4 | Renaissance Technologies | 1.92M | $2M |
| 5 | Two Sigma Investments | 999.5K | $1M |
| 6 | AQR Capital Management | 376.3K | $489K |
| 7 | Ken Griffin Citadel Advisors | 23.3K | $30K |
| 8 | Ken Griffin Citadel Advisors | 17.4K | $23K |
| 9 | T. Rowe Price | 76.6K | $100 |
Recent moves
20 transactions
- +6,921,405 · 2025Q4
- +307,230 · 2025Q4
- −525,774 · 2025Q4
- −613,412 · 2025Q4
- TRIMD.E. Shaw & Co.−83,852 · 2025Q4
- −1,560,389 · 2025Q4
- −939,099 · 2025Q4
- −248,303 · 2025Q3
- TRIMD.E. Shaw & Co.−111,807 · 2025Q3
- TRIMT. Rowe Price−2,805,039 · 2025Q3
- −243,834 · 2025Q3
- +1,874,940 · 2025Q3
- +32,691 · 2025Q3
- +165,660 · 2025Q3
- +214,102 · 2025Q2
- TRIMT. Rowe Price−122,999 · 2025Q2
- −4,775,877 · 2025Q2
- −902,948 · 2025Q2
- −112,399 · 2025Q2
- +5,841 · 2025Q2
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