PBLS · Insider trading · 13F holders · Congress trades
Parabilis Medicines, Inc. (PBLS)
Who is buying and selling PBLS: 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
- 22
- Insider buys, 90 days
- $0
- Insider sales, 90 days
- $0
- Congress trades, 12 months
- 0
PBLS at a glance
- No open-market insider purchases or sales of PBLS were filed in the last 90 days.
- 22 13F filers hold PBLS among their 50 largest positions, worth $2.0B combined, including Peter Kolchinsky and James Flynn. The biggest bets by portfolio weight are General Catalyst Group Management, LLC (23.2%), ARCH Venture Management, LLC (16.0%) and Peter Kolchinsky (6.9%). In their latest 13Fs, 14 managers opened a new position and 0 added to one.
- No member of Congress has disclosed a trade in PBLS.
PBLS insider trading
No open-market insider purchases or sales of PBLS were filed in the last 90 days.
Who owns PBLS? Hedge funds and superinvestors
22 13F filers hold PBLS among their 50 largest positions, worth $2.0B combined, including Peter Kolchinsky and James Flynn. The biggest bets by portfolio weight are General Catalyst Group Management, LLC (23.2%), ARCH Venture Management, LLC (16.0%) and Peter Kolchinsky (6.9%). In their latest 13Fs, 14 managers opened a new position and 0 added to one.
Superinvestors holding PBLS: Peter Kolchinsky 6.9% · James Flynn 0.6%
| Manager | % of portfolio | Value | Shares | Last quarter | 13F |
|---|---|---|---|---|---|
| Peter KolchinskyHedge fund | 6.9% | $791.9M | 28,933,371 | — | Q2 2026 |
| ARCH Venture Management, LLCVenture capital | 16.0% | $175.5M | 6,412,780 | New | Q2 2026 |
| venBio Partners LLCHedge fund | 27.8% | $144.1M | 5,266,697 | New | Q2 2026 |
| Alphabet Inc.Corporation | 0.1% | $134.6M | 4,919,498 | New | Q2 2026 |
| Nextech Invest Ltd.Hedge fund | 6.1% | $127.6M | 4,663,176 | New | Q2 2026 |
| Cormorant Asset Management, LPHedge fund | 6.5% | $126.3M | 4,615,612 | New | Q2 2026 |
| Siren, L.L.C.Investment manager | 1.7% | $81.9M | 2,992,259 | — | Q2 2026 |
| Farallon Capital Management, L.l.c.Hedge fund | 0.4% | $64.8M | 2,368,200 | — | Q2 2026 |
| Frazier Life Sciences Management, L.P.Hedge fund | 1.1% | $52.6M | 1,920,805 | New | Q2 2026 |
| James FlynnHedge fund | 0.6% | $51.5M | 1,880,704 | — | Q2 2026 |
| General Catalyst Group Management, LLCHedge fund | 23.2% | $43.8M | 1,600,937 | New | Q2 2026 |
| General Atlantic, L.P.Hedge fund | 1.4% | $42.1M | 1,538,461 | New | Q2 2026 |
| Soleus Capital Management, L.P.Hedge fund | 1.4% | $40.1M | 1,465,070 | — | Q2 2026 |
| Foresite Capital Management VI LLCHedge fund | 4.3% | $27.3M | 999,044 | New | Q2 2026 |
| Catalio Capital Management, LPHedge fund | 4.2% | $22.6M | 824,043 | New | Q2 2026 |
| Casdin Capital, LLCHedge fund | 0.9% | $17.7M | 645,690 | New | Q2 2026 |
| Venrock Adviser, LLCHedge fund | 0.5% | $17.1M | 625,000 | New | Q2 2026 |
| Rock Springs Capital Management LPHedge fund | 0.8% | $15.8M | 578,028 | — | Q2 2026 |
| Samsara Biocapital, LLCHedge fund | 1.3% | $15.2M | 556,044 | New | Q2 2026 |
| Logos Global Management LPHedge fund | 0.6% | $14.4M | 525,000 | — | Q2 2026 |
| ICONIQ Capital, LLCHedge fund | 0.3% | $9.6M | 350,000 | — | Q2 2026 |
| Kynam Capital Management, LPHedge fund | 0.4% | $6.8M | 250,000 | New | Q2 2026 |
Each manager counts with its latest 13F (Q2 2026: 22). Screen PBLS in the grand portfolio →
PBLS stock trades by members of Congress
No member of Congress has disclosed a trade in PBLS.
PBLS questions and answers
Are insiders buying PBLS stock?
No open-market insider purchases or sales of PBLS were filed in the last 90 days.
Which hedge funds own PBLS?
22 13F filers hold PBLS among their 50 largest positions, worth $2.0B combined, including Peter Kolchinsky and James Flynn. The biggest bets by portfolio weight are General Catalyst Group Management, LLC (23.2%), ARCH Venture Management, LLC (16.0%) and Peter Kolchinsky (6.9%). In their latest 13Fs, 14 managers opened a new position and 0 added to one.
Has Congress traded PBLS?
No member of Congress has disclosed a trade in PBLS.
Who is the largest holder of PBLS?
Among 13F filers, Peter Kolchinsky reports the largest PBLS position, $791.9M (28,933,371 shares) in its Q2 2026 13F. The biggest bet by portfolio weight is General Catalyst Group Management, LLC's: 23.2% of its portfolio.
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