GHRS · Insider trading · 13F holders · Congress trades
Gh Research PLC (GHRS)
Who is buying and selling GHRS: company insiders on SEC Form 4, hedge funds and superinvestors on Form 13F, and members of Congress under the STOCK Act. Every figure links to the filing or page it comes from.
- 13F filers holding
- 9
- Insider buys, 90 days
- $0
- Insider sales, 90 days
- $0
- Congress trades, 12 months
- 0
GHRS at a glance
- No open-market insider purchases or sales of GHRS were filed in the last 90 days.
- 9 13F filers hold GHRS among their 50 largest positions, worth $1.1B combined, including Peter Kolchinsky and Behzad Aghazadeh. The biggest bets by portfolio weight are Lynx1 Capital Management LP (41.2%), Bvf Inc/il (5.9%) and Foresite Capital Management VI LLC (3.9%). In their latest 13Fs, 0 managers opened a new position and 2 added to one.
- No member of Congress has disclosed a trade in GHRS.
GHRS insider trading
No open-market insider purchases or sales of GHRS were filed in the last 90 days.
Who owns GHRS? Hedge funds and superinvestors
9 13F filers hold GHRS among their 50 largest positions, worth $1.1B combined, including Peter Kolchinsky and Behzad Aghazadeh. The biggest bets by portfolio weight are Lynx1 Capital Management LP (41.2%), Bvf Inc/il (5.9%) and Foresite Capital Management VI LLC (3.9%). In their latest 13Fs, 0 managers opened a new position and 2 added to one.
Superinvestors holding GHRS: Peter Kolchinsky 1.8% · Behzad Aghazadeh 0.4%
| Manager | % of portfolio | Value | Shares | Last quarter | 13F |
|---|---|---|---|---|---|
| Lynx1 Capital Management LPHedge fund | 41.2% | $356.5M | 13,263,288 | +23.2% shares | Q2 2026 |
| Bvf Inc/ilInvestment manager | 5.9% | $232.5M | 8,650,158 | +0.0% shares | Q2 2026 |
| Peter KolchinskyHedge fund | 1.8% | $205.3M | 7,636,813 | -0.5% shares | Q2 2026 |
| Rtw Investments, LPHedge fund | 1.4% | $159.5M | 5,933,815 | +0.0% shares | Q2 2026 |
| Deep Track Capital, LPHedge fund | 1.3% | $89.6M | 3,333,334 | — | Q2 2026 |
| Behzad AghazadehHedge fund | 0.4% | $48.4M | 1,800,000 | +0.0% shares | Q2 2026 |
| Foresite Capital Management VI LLCHedge fund | 3.9% | $25.3M | 940,493 | +198.1% shares | Q2 2026 |
| HighVista Strategies LLCHedge fund | 1.0% | $4.3M | 158,770 | -25.5% shares | Q2 2026 |
| Lion Point Capital, LPHedge fund | 1.3% | $274K | 10,200 | +0.0% shares | Q2 2026 |
Each manager counts with its latest 13F (Q2 2026: 9). Screen GHRS in the grand portfolio →
GHRS stock trades by members of Congress
No member of Congress has disclosed a trade in GHRS.
GHRS questions and answers
Are insiders buying GHRS stock?
No open-market insider purchases or sales of GHRS were filed in the last 90 days.
Which hedge funds own GHRS?
9 13F filers hold GHRS among their 50 largest positions, worth $1.1B combined, including Peter Kolchinsky and Behzad Aghazadeh. The biggest bets by portfolio weight are Lynx1 Capital Management LP (41.2%), Bvf Inc/il (5.9%) and Foresite Capital Management VI LLC (3.9%). In their latest 13Fs, 0 managers opened a new position and 2 added to one.
Has Congress traded GHRS?
No member of Congress has disclosed a trade in GHRS.
Who is the largest holder of GHRS?
Among 13F filers, Lynx1 Capital Management LP reports the largest GHRS position, $356.5M (13,263,288 shares) in its Q2 2026 13F. The biggest bet by portfolio weight is Lynx1 Capital Management LP's: 41.2% of its portfolio.
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