RGEN — REPLIGEN CORP
Health Care
InvestorLens aggregates public filing data to show which tracked investors reported holdings in this stock. Dollar values represent reported position values, not market capitalization, and may be delayed up to 45 days. Not a recommendation.
Sourced from SEC EDGAR public filings
Why are billionaires buying RGEN?
Built from public SEC filings and public economic data. Not a recommendation.
Why? — Evidence & Confidence ▾
Of 2 tracked investors who changed their RGEN position last quarter, 1 bought and 1 sold (50% buy-side). Macro conditions are mixed for this sector (Macro Tailwind 53/100 in a Overheat regime).
- +1 tracked investor added or increased positions last quarter (Stanley Druckenmiller)
- +5 tracked investors reported holding RGEN at their latest filing
- −1 tracked investor reduced or exited last quarter (0 reduced, 1 sold out)
- −13F data is disclosed up to 45 days after quarter end — positions may have changed since
- · 13F disclosure lag (up to 45 days)
- · Tracked investors are a sample, not the whole market
- · Sector regime fit is a historical average, not a guarantee
Every InvestorLens score shows its evidence — including what argues against it. Model conviction-v1 · generated 9/18/2026.
About REPLIGEN CORP (RGEN)
REPLIGEN CORP (RGEN) appears in the most recent 13F filings of 5 tracked institutional investors. REPLIGEN CORP is classified in the Health Care sector. The largest disclosed position is held by Steve Cohen (Point72 Asset Management), valued at $238M. Across recent filings, tracked investors recorded 4 new positions, 3 increased, 1 reduced, and 3 exited. All data sourced from SEC 13F filings.
Based on recent institutional activity in RGEN
How many top investors track RGEN
A small number of top investors own this.
RGEN Ownership Composition
How REPLIGEN CORP is held across tracked investor types, based on reported 13F positions.
- Multi-Strategy / Quant85.8%
- Macro14.2%
Tracked investors currently reporting RGEN
2 tracked investors have since exited this position — listed separately below.
- Steve CohenJun 30, 2026Point72 Asset ManagementShares166.2KValue$22.7M% Portfolio0.03%
- Ken GriffinJun 30, 2026Citadel AdvisorsShares427.1KValue$58.3M% Portfolio0.01%
- Izzy EnglanderJun 30, 2026Millennium ManagementShares27KValue$3.7M% Portfolio0.00%
- Paul Tudor JonesJun 30, 2026Tudor Investment CorpShares25.7KValue$3.5M% Portfolio0.00%
- Stanley DruckenmillerJun 30, 2026Duquesne Family OfficeShares77.4KValue$10.6M% Portfolio0.20%
Previously held RGEN
These investors reported RGEN in an earlier quarter but not in their most recent 13F. Figures below are their last reported position, not a current holding.
| Investor | Firm | Last reported shares | Value then | Last held |
|---|---|---|---|---|
| Howard Marks | Oaktree Capital Management | 9M | $8.8M | Mar 31, 2026 |
| Ray Dalio | Bridgewater Associates | 7.9K | $1.3K | Dec 31, 2025 |
Recent activity
- New$2.3MFeb 12, 2025
- Unchanged$2.2M(0.00%)May 15, 2025
- Increased$5.8M(163.45%)Aug 13, 2025
- Increased$8.9M(52.21%)Nov 13, 2025
- Increased$10.8M(11.43%)Feb 17, 2026
- Reduced$8.8M(-8.47%)May 20, 2026
- Sold$0(-100.00%)Aug 14, 2026
- New$4.5KNov 13, 2025
- Sold$0(-100.00%)Feb 13, 2026
- Sold$0(-100.00%)Nov 14, 2024
- $10.6MAug 14, 2026
- New$39.7MSep 16, 2024
Frequently asked questions
- How many institutional investors hold RGEN?
- 5 tracked institutional investors disclosed a position in RGEN (REPLIGEN CORP) in their most recent 13F filing.
- Who is the largest institutional holder of RGEN?
- Steve Cohen, Point72 Asset Management, holds the largest disclosed position in RGEN, valued at $238M.
- Did institutional ownership of RGEN increase or decrease?
- Across recent 13F filings, tracked investors recorded 4 new positions, 3 increased, 1 reduced, and 3 fully exited RGEN.
- What sector is RGEN in?
- REPLIGEN CORP is classified in the Health Care GICS sector.
- Where does this RGEN ownership data come from?
- SEC Form 13F-HR filings, accessed via EDGAR. 13F filings are disclosed quarterly with a 45-day reporting delay and cover U.S.-listed long equity positions only. This is not investment advice.