Managers / Q1 2021 · view latest →
Essex Woodlands Management, Inc.
CIK 0001542339 · 21 WATERWAY AVE, STE 150, THE WOODLANDS, TX, 77380 · 281-364-1555
Summary
Essex Woodlands Management, Inc. reported $640M in U.S.-listed holdings across 9 positions for Q1 2021.
The portfolio is heavily concentrated: MDXG alone accounts for 37.6% of reported value.
Compared with Q4 2020, the fund opened 1 new position and exited 0.
Portfolio Metrics
Methodology: turnover is min(value bought, value sold) ÷ average reported value across the two quarters — value-based, so market moves inflate it slightly versus a share-based measure. Concentration and largest position are shares of the filing’s total reported value, options excluded, with multiple share classes and repeated sub-manager rows for the same issuer combined into one position — the same rule the holdings table uses by default. New/exited counts compare against the prior filed quarter. All figures derive solely from the fund’s 13F filings.
Reported Value by Quarter
Portfolio Composition
- Common Stock · 95.4% · $610M
- Other · 4.6% · $30M
Quarter-over-Quarter Changes full breakdown →
vs Q4 2020 (amended baseline)
| Issuer | Move | Share Δ | Shares now | Value Δ | Value now |
|---|---|---|---|---|---|
| BVSBIOVENTUS | NEW | +12.10M | 12.10M | +$185M | $185M |
| MDXGMIMEDX GROUP, INC. | ADDED | +3.90M | 23.38M | +$63M | $241M |
| RVNCEURREVANCE THERAPEUTICS INC | TRIMMED | −582.1K | 2.76M | −$18M | $77M |
| AXGNAXOGEN INC | TRIMMED | −222.2K | 1.76M | +$176,000 | $36M |
| TELATELA BIO, INC. | ADDED | +104.8K | 1.58M | +$1M | $24M |
| EYPTEYEPOINT PHARMACEUTICALS INC | HELD | +0 | 4.19M | +$15M | $43M |
| VENUS CONCEPT, INC. | HELD | +0 | 12.42M | +$8M | $29M |
| 4875MEDICINOVA INC | HELD | +0 | 1.11M | −$232,000 | $6M |
Value changes conflate price moves with buying and selling — share changes are the real signal. Share counts are not split-adjusted.
Holdings — Q1 2021
| # | Issuer | Class | % Portfolio | Value ↓ | Shares |
|---|---|---|---|---|---|
| 1 | MDXGMIMEDX GROUP, INC.history → | COM | 37.64% | $241M | 23.38M |
| 2 | BVSBIOVENTUShistory → | COM CL A | 28.89% | $185M | 12.10M |
| 3 | RVNCEURREVANCE THERAPEUTICS INChistory → | COM | 12.06% | $77M | 2.76M |
| 4 | EYPTEYEPOINT PHARMACEUTICALS INChistory → | COM NEW | 6.66% | $43M | 4.19M |
| 5 | AXGNAXOGEN INChistory → | COM | 5.57% | $36M | 1.76M |
| 6 | VENUS CONCEPT, INC. | COM | 4.56% | $29M | 12.42M |
| 7 | TELATELA BIO, INC.history → | COM | 3.68% | $24M | 1.58M |
| 8 | 4875MEDICINOVA INC | COM NEW | 0.87% | $6M | 1.11M |
| 9 | CATALYST BIOSCIENCES INC | COM NEW | 0.06% | $396,000 | 78.6K |
Filing History
| Quarter | Reported Value | Positions | Filed | Type | Links |
|---|---|---|---|---|---|
| Q1 2026 | $251M | 5 | May 4, 2026 | 13F-HR | changes · EDGAR ↗ |
| Q4 2025 | $318M | 6 | Feb 4, 2026 | 13F-HR | changes · EDGAR ↗ |
| Q3 2025 | $307M | 6 | Nov 12, 2025 | 13F-HR | changes · EDGAR ↗ |
| Q2 2025 | $279M | 6 | Aug 7, 2025 | 13F-HR | changes · EDGAR ↗ |
| Q1 2025 | $347M | 6 | May 13, 2025 | 13F-HR | changes · EDGAR ↗ |
| Q4 2024 | $433M | 7 | Feb 13, 2025 | 13F-HR | changes · EDGAR ↗ |
| Q3 2024 | $350M | 7 | Nov 14, 2024 | 13F-HR | changes · EDGAR ↗ |
| Q2 2024 | $307M | 7 | Aug 14, 2024 | 13F-HR | changes · EDGAR ↗ |
| Q1 2024 | $345M | 7 | May 15, 2024 | 13F-HR | changes · EDGAR ↗ |
| Q4 2023 | $404M | 7 | Feb 14, 2024 | 13F-HR | changes · EDGAR ↗ |
| Q3 2023 | $113M | 6 | Nov 14, 2023 | 13F-HR | changes · EDGAR ↗ |
| Q2 2023 | $132M | 6 | Aug 14, 2023 | 13F-HR | changes · EDGAR ↗ |
| Q1 2023 | $173M | 7 | May 15, 2023 | 13F-HR | changes · EDGAR ↗ |
| Q4 2022 | $179M | 7 | Feb 14, 2023 | 13F-HR | changes · EDGAR ↗ |
| Q3 2022 | $242M | 7 | Nov 14, 2022 | 13F-HR | changes · EDGAR ↗ |
| Q2 2022 | $242M | 9 | Aug 15, 2022 | 13F-HR | changes · EDGAR ↗ |
| Q1 2022 | $414M | 9 | May 16, 2022 | 13F-HR | changes · EDGAR ↗ |
| Q4 2021 | $445M | 10 | Feb 14, 2022 | 13F-HR | changes · EDGAR ↗ |
| Q3 2021 | $451M | 9 | Nov 15, 2021 | 13F-HR | changes · EDGAR ↗ |
| Q2 2021 | $677M | 9 | Aug 13, 2021 | 13F-HR | changes · EDGAR ↗ |
| Q1 2021 | $640M | 9 | May 14, 2021 | 13F-HR | changes · EDGAR ↗ |
| Q4 2020 | $385M | 8 | Feb 12, 2021 | 13F-HR | changes · EDGAR ↗ |
| Q3 2020 | $188M | 8 | Nov 13, 2020 | 13F-HR | changes · EDGAR ↗ |
| Q2 2020 | $204M | 8 | Aug 14, 2020 | 13F-HR | changes · EDGAR ↗ |
| Q1 2020 | $155M | 8 | May 15, 2020 | 13F-HR | changes · EDGAR ↗ |
| Q4 2019 | $214M | 8 | Feb 14, 2020 | 13F-HR | changes · EDGAR ↗ |
| Q3 2019 | $161M | 6 | Nov 14, 2019 | 13F-HR | changes · EDGAR ↗ |
| Q2 2019 | $173M | 6 | Aug 14, 2019 | 13F-HR | changes · EDGAR ↗ |
| Q1 2019 | $201M | 8 | May 15, 2019 | 13F-HR | changes · EDGAR ↗ |
| Q4 2018 | $251M | 8 | Feb 14, 2019 | 13F-HR | changes · EDGAR ↗ |
13F filings are due up to 45 days after quarter end, so holdings shown here lag the fund’s current book. Source: original SEC filing on EDGAR ↗.