ERFSF · Insider trading · 13F holders · Congress trades
Eurofins Scientific (ERFSF)
Who is buying and selling ERFSF: 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
- 2
- Insider buys, 90 days
- $0
- Insider sales, 90 days
- $0
- Congress trades, 12 months
- 0
ERFSF at a glance
- No open-market insider purchases or sales of ERFSF were filed in the last 90 days.
- 2 13F filers hold ERFSF among their 50 largest positions, worth $321.5M combined, including Thomas Russo. The biggest bets by portfolio weight are Thomas Russo (3.6%) and Lountzis Asset Management, LLC (0.2%). In their latest 13Fs, 0 managers opened a new position and 1 added to one.
- No member of Congress has disclosed a trade in ERFSF.
ERFSF insider trading
No open-market insider purchases or sales of ERFSF were filed in the last 90 days.
Who owns ERFSF? Hedge funds and superinvestors
2 13F filers hold ERFSF among their 50 largest positions, worth $321.5M combined, including Thomas Russo. The biggest bets by portfolio weight are Thomas Russo (3.6%) and Lountzis Asset Management, LLC (0.2%). In their latest 13Fs, 0 managers opened a new position and 1 added to one.
Superinvestors holding ERFSF: Thomas Russo 3.6%
| Manager | % of portfolio | Value | Shares | Last quarter | 13F |
|---|---|---|---|---|---|
| Thomas RussoSuperinvestor · Asset manager | 3.6% | $320.9M | 4,094,034 | +32.2% shares | Q2 2026 |
| Lountzis Asset Management, LLCWealth manager | 0.2% | $582K | 7,433 | +0.0% shares | Q2 2026 |
Each manager counts with its latest 13F (Q2 2026: 2). Screen ERFSF in the grand portfolio →
ERFSF stock trades by members of Congress
No member of Congress has disclosed a trade in ERFSF.
ERFSF questions and answers
Are insiders buying ERFSF stock?
No open-market insider purchases or sales of ERFSF were filed in the last 90 days.
Which hedge funds own ERFSF?
2 13F filers hold ERFSF among their 50 largest positions, worth $321.5M combined, including Thomas Russo. The biggest bets by portfolio weight are Thomas Russo (3.6%) and Lountzis Asset Management, LLC (0.2%). In their latest 13Fs, 0 managers opened a new position and 1 added to one.
Has Congress traded ERFSF?
No member of Congress has disclosed a trade in ERFSF.
Who is the largest holder of ERFSF?
Among 13F filers, Thomas Russo reports the largest ERFSF position, $320.9M (4,094,034 shares) in its Q2 2026 13F. The biggest bet by portfolio weight is Thomas Russo's: 3.6% of its portfolio.
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