ASMB · Insider trading · 13F holders · Congress trades
> Parametric Assembly biosciences, Inc. (ASMB)
Who is buying and selling ASMB: 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
- 11
- Insider buys, 90 days
- $0
- Insider sales, 90 days
- $0
- Congress trades, 12 months
- 2
ASMB at a glance
- No open-market insider purchases or sales of ASMB were filed in the last 90 days.
- 11 13F filers hold ASMB among their 50 largest positions, worth $318.1M combined. The biggest bets by portfolio weight are Ally Bridge Group (NY) LLC (5.0%), B Group, Inc. (2.7%) and Commodore Capital LP (2.3%). In their latest 13Fs, 2 managers opened a new position and 6 added to one.
- Members of Congress have disclosed 2 ASMB trades since 2020, 1 purchase and 1 sale in the past year; the latest was Chris Jacobs (R-NY), selling $1K–15K on Jan 4, 2021.
- ASMB last closed at $20.35 on Oct 30, 2026.
ASMB insider trading
No open-market insider purchases or sales of ASMB were filed in the last 90 days.
Who owns ASMB? Hedge funds and superinvestors
11 13F filers hold ASMB among their 50 largest positions, worth $318.1M combined. The biggest bets by portfolio weight are Ally Bridge Group (NY) LLC (5.0%), B Group, Inc. (2.7%) and Commodore Capital LP (2.3%). In their latest 13Fs, 2 managers opened a new position and 6 added to one.
| Manager | % of portfolio | Value | Shares | Last quarter | 13F |
|---|---|---|---|---|---|
| Gilead Sciences, Inc.Corporation | 8.3% | $136.8M | 4,977,089 | +10.5% shares | Q2 2026 |
| Farallon Capital Management, L.l.c.Hedge fund | 0.3% | $44.1M | 1,604,590 | +30.7% shares | Q2 2026 |
| Paradigm Biocapital Advisors LPHedge fund | 0.8% | $42.7M | 1,553,748 | +133.6% shares | Q2 2026 |
| Commodore Capital LPHedge fund | 2.3% | $38.9M | 1,415,000 | +41.5% shares | Q2 2026 |
| Parkman Healthcare Partners LLCHedge fund | 2.0% | $19.8M | 721,181 | +75.4% shares | Q2 2026 |
| Seven Fleet Capital Management LPHedge fund | 2.0% | $11.9M | 433,147 | +671.5% shares | Q2 2026 |
| Dv Equities, LLCInvestment manager | 0.9% | $6.2M | 226,415 | — | Q2 2026 |
| B Group, Inc.Hedge fund | 2.7% | $4.8M | 175,706 | +0.0% shares | Q2 2026 |
| Stempoint Capital LPHedge fund | 0.8% | $4.7M | 170,378 | -8.1% shares | Q2 2026 |
| Squadron Capital Management LLCHedge fund | 1.5% | $4.4M | 160,000 | New | Q2 2026 |
| Ally Bridge Group (NY) LLCHedge fund | 5.0% | $3.8M | 140,000 | New | Q2 2026 |
Each manager counts with its latest 13F (Q2 2026: 11). Screen ASMB in the grand portfolio →
ASMB stock trades by members of Congress
Members of Congress have disclosed 2 ASMB trades since 2020, 1 purchase and 1 sale in the past year; the latest was Chris Jacobs (R-NY), selling $1K–15K on Jan 4, 2021.
| Filed | Member | Trade | Amount | Traded | Since |
|---|---|---|---|---|---|
| Feb 17, 2021 | Chris JacobsR-NY · House | Sale | $1K–15K | Jan 4, 2021 | -71.9% |
| Feb 10, 2021 | Chris JacobsR-NY · House | Buy | $1K–15K | Dec 28, 2020 | -71.8% |
ASMB questions and answers
Are insiders buying ASMB stock?
No open-market insider purchases or sales of ASMB were filed in the last 90 days.
Which hedge funds own ASMB?
11 13F filers hold ASMB among their 50 largest positions, worth $318.1M combined. The biggest bets by portfolio weight are Ally Bridge Group (NY) LLC (5.0%), B Group, Inc. (2.7%) and Commodore Capital LP (2.3%). In their latest 13Fs, 2 managers opened a new position and 6 added to one.
Has Congress traded ASMB?
Members of Congress have disclosed 2 ASMB trades since 2020, 1 purchase and 1 sale in the past year; the latest was Chris Jacobs (R-NY), selling $1K–15K on Jan 4, 2021.
Who is the largest holder of ASMB?
Among 13F filers, Gilead Sciences, Inc. reports the largest ASMB position, $136.8M (4,977,089 shares) in its Q2 2026 13F. The biggest bet by portfolio weight is Ally Bridge Group (NY) LLC's: 5.0% of its portfolio.
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