EBS · Insider trading · 13F holders · Congress trades
Emergent BioSolutions Inc. (EBS)
Who is buying and selling EBS: 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
- 4
- Insider buys, 90 days
- $0
- Insider sales, 90 days
- $146K
- Congress trades, 12 months
- 1
EBS at a glance
- Between Aug 1, 2026 and Oct 29, 2026, 2 EBS insiders filed 2 sales worth $146K on SEC Form 4, and no open-market purchases; 2 of the sales were pre-planned under Rule 10b5-1.
- 4 13F filers hold EBS among their 50 largest positions, worth $21.6M combined. The biggest bets by portfolio weight are Oak Hill Advisors LP (1.3%), Values First Advisors, Inc. (0.9%) and Prosight Management, LP (0.7%).
- Members of Congress have disclosed 13 EBS trades since 2019, 0 purchases and 1 sale in the past year; the latest was Steve Cohen (D-TN), selling $1K–15K on Dec 11, 2024.
- EBS last closed at $7.22 on Oct 29, 2026.
EBS insider trading
Between Aug 1, 2026 and Oct 29, 2026, 2 EBS insiders filed 2 sales worth $146K on SEC Form 4, and no open-market purchases; 2 of the sales were pre-planned under Rule 10b5-1.
| Filed | Insider | Role | Trade | Shares | Price | Value | Form 4 |
|---|---|---|---|---|---|---|---|
| Oct 7, 2026 | DeGolyer Donald W | Director | Sale10b5-1 | 17,800 | $7.09 | $126K | SEC |
| Oct 5, 2026 | Williams Paul Anthony | SVP, Products Business | Sale10b5-1 | 3,000 | $6.53 | $20K | SEC |
Who owns EBS? Hedge funds and superinvestors
4 13F filers hold EBS among their 50 largest positions, worth $21.6M combined. The biggest bets by portfolio weight are Oak Hill Advisors LP (1.3%), Values First Advisors, Inc. (0.9%) and Prosight Management, LP (0.7%).
| Manager | % of portfolio | Value | Shares | Last quarter | 13F |
|---|---|---|---|---|---|
| Oak Hill Advisors LPHedge fund | 1.3% | $9.3M | 1,113,338 | +0.0% shares | Q2 2026 |
| Prescott Group Capital Management, L.L.C.Hedge fund | 0.6% | $6.5M | 772,771 | +0.0% shares | Q2 2026 |
| Prosight Management, LPHedge fund | 0.7% | $3.9M | 459,952 | -28.0% shares | Q2 2026 |
| Values First Advisors, Inc.Wealth manager | 0.9% | $2.0M | 296,098 | -1.8% shares | Q3 2026 |
Each manager counts with its latest 13F (Q3 2026: 1, Q2 2026: 3). Screen EBS in the grand portfolio →
EBS stock trades by members of Congress
Members of Congress have disclosed 13 EBS trades since 2019, 0 purchases and 1 sale in the past year; the latest was Steve Cohen (D-TN), selling $1K–15K on Dec 11, 2024.
| Filed | Member | Trade | Amount | Traded | Since |
|---|---|---|---|---|---|
| Jan 10, 2025 | Steve CohenD-TN · House | Sale | $1K–15K | Dec 11, 2024 | -18.0% |
| Dec 13, 2021 | Josh GottheimerD-NJ · House | Sale | $1K–15K | Nov 5, 2021 | -78.8% |
| Nov 15, 2021 | Josh GottheimerD-NJ · House | Buy | $1K–15K | Oct 18, 2021 | -86.1% |
| Oct 13, 2021 | Josh GottheimerD-NJ · House | Sale | $1K–15K | Sep 15, 2021 | -87.7% |
| Mar 10, 2021 | Josh GottheimerD-NJ · House | Sale | $1K–15K | Feb 23, 2021 | -92.5% |
| Dec 15, 2020 | Gilbert Ray Cisneros, Jr.D-CA · House | Buy | $1K–15K | Nov 24, 2020 | -91.1% |
| Aug 19, 2020 | Gilbert Ray Cisneros, Jr.D-CA · House | Buy | $1K–15K | Jul 30, 2020 | -92.8% |
| Jul 17, 2020 | Gilbert Ray Cisneros, Jr.D-CA · House | Buy | $1K–15K | Jun 30, 2020 | -91.1% |
| Jul 17, 2020 | Gilbert Ray Cisneros, Jr.D-CA · House | Buy | $1K–15K | Jun 19, 2020 | -90.2% |
| Jul 9, 2020 | Josh GottheimerD-NJ · House | Buy | $1K–15K | Jun 26, 2020 | -90.7% |
| Jul 9, 2020 | Josh GottheimerD-NJ · House | Buy | $1K–15K | Jun 15, 2020 | -90.1% |
| Apr 22, 2020 | Steve CohenD-TN · House | Sale | $1K–15K | Mar 26, 2020 | -87.7% |
| Sep 12, 2019 | Steve CohenD-TN · House | Sale | $15K–50K | Aug 29, 2019 | -83.4% |
3 members have traded EBS: Steve Cohen, Josh Gottheimer, Gilbert Ray Cisneros, Jr..
EBS questions and answers
Are insiders buying EBS stock?
Between Aug 1, 2026 and Oct 29, 2026, 2 EBS insiders filed 2 sales worth $146K on SEC Form 4, and no open-market purchases; 2 of the sales were pre-planned under Rule 10b5-1.
Which hedge funds own EBS?
4 13F filers hold EBS among their 50 largest positions, worth $21.6M combined. The biggest bets by portfolio weight are Oak Hill Advisors LP (1.3%), Values First Advisors, Inc. (0.9%) and Prosight Management, LP (0.7%).
Has Congress traded EBS?
Members of Congress have disclosed 13 EBS trades since 2019, 0 purchases and 1 sale in the past year; the latest was Steve Cohen (D-TN), selling $1K–15K on Dec 11, 2024.
Who is the largest holder of EBS?
Among 13F filers, Oak Hill Advisors LP reports the largest EBS position, $9.3M (1,113,338 shares) in its Q2 2026 13F. The biggest bet by portfolio weight is Oak Hill Advisors LP's: 1.3% of its portfolio.
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