Ticker · CUSIP 44045A102
Holders (tracked)
5
Combined shares
614,468
Combined value
$3.96M
Last close
—
Quarter
2025Q4
Tracked holders · last 8 quarters
Flat over the last 8 quarters.
SEC event timeline
7 events
- Ken Griffin (Citadel Advisors) exited2026-02-17−16,841 shares · 2025Q413F
- Izzy Englander (Millennium Mgmt) trimmed2026-02-17−168,648 shares · 2025Q413F
- Two Sigma Investments opened position2026-02-17+519,253 shares · 2025Q413F
- AQR Capital Management trimmed2026-02-17−737 shares · 2025Q413F
- +180,199 shares · 2025Q313F
- Two Sigma Investments exited2025-11-14−88,770 shares · 2025Q313F
- AQR Capital Management trimmed2025-11-14−746 shares · 2025Q313F
Insider activity
Last 30 days
Net (open-market)
$0
Buys
0 · $0
Sells
0 · $0
Unique insiders
3
| Date | Insider | Code | Shares | Price | Value |
|---|---|---|---|---|---|
| 04-14 | ALLISON THOMAS J. Insider | A | 49,926 | — | — |
| 04-14 | Balkin Michael Chief Executive Officer · Officer, Director | A | 93,527 | — | — |
| 04-14 | Seitz Paul G Chief Investment Officer · Officer | A | 142 | — | — |
Who moved on this name in 2025Q4
13F transactions reported for the latest quarter, grouped by direction.
New positions1
- Two Sigma Investments+519,253$3.3M
Added to0
—
Trimmed2
- Izzy Englander (Millennium Mgmt)−168,648$1.1M
- AQR Capital Management−737$5K
Exited1
- Ken Griffin (Citadel Advisors)−16,841$103K
Institutional ownership over time
Distinct super-investors holding this ticker · combined dollar value, by quarter.
| Quarter | Holders | Combined value |
|---|---|---|
| 2022Q1 | 7 | $8.6M |
| 2022Q2 | 6 | $6.0M |
| 2022Q3 | 6 | $5K |
| 2022Q4 | 6 | $4.7M |
| 2023Q1 | 3 | $2.2M |
| 2023Q2 | 5 | $4.3M |
| 2023Q3 | 3 | $3.2M |
| 2023Q4 | 5 | $3.9M |
| 2024Q1 | 5 | $3.5M |
| 2024Q2 | 4 | $4.8M |
| 2024Q3 | 5 | $4.2M |
| 2024Q4 | 7 | $3.5M |
| 2025Q1 | 5 | $4.2M |
| 2025Q2 | 4 | $1.3M |
| 2025Q3 | 5 | $1.6M |
| 2025Q4 | 5 | $4.0M |
Who owns HRZN
5 super-investors · 2025Q4
Tracked stake
614.5K
shares
Combined value
$4M
% of shares outstanding
—
shares-out unknown
Quarter action mix
New1Trim2Sold2
| # | Manager | Shares | Value |
|---|---|---|---|
| 1 | Two Sigma Investments | 519.3K | $3M |
| 2 | AQR Capital Management | 34.2K | $220K |
| 3 | Ken Griffin Citadel Advisors | 26.1K | $168K |
| 4 | Ken Griffin Citadel Advisors | 23.4K | $151K |
| 5 | Izzy Englander Millennium Mgmt | 11.6K | $75K |
Recent moves
20 transactions
- +519,253 · 2025Q4
- −737 · 2025Q4
- −16,841 · 2025Q4
- −168,648 · 2025Q4
- −746 · 2025Q3
- −88,770 · 2025Q3
- +180,199 · 2025Q3
- −175,677 · 2025Q2
- −442 · 2025Q2
- −734 · 2025Q1
- −96,342 · 2025Q1
- +161,174 · 2025Q1
- SOLDD.E. Shaw & Co.−24,447 · 2025Q1
- −107,082 · 2024Q4
- −37,973 · 2024Q4
- +24,447 · 2024Q4
- +36,823 · 2024Q4
- +203,424 · 2024Q3
- −40,300 · 2024Q3
- +109,297 · 2024Q2
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