FLDM · Insider trading · 13F holders · Congress trades
Standard Biotools Inc (FLDM)
Who is buying and selling FLDM: 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
- 10
- Insider buys, 90 days
- $0
- Insider sales, 90 days
- $0
- Congress trades, 12 months
- 0
FLDM at a glance
- No open-market insider purchases or sales of FLDM were filed in the last 90 days.
- 10 13F filers hold FLDM among their 50 largest positions, worth $127.8M combined. The biggest bets by portfolio weight are Casdin Capital, LLC (3.7%), Mak Capital One LLC (3.3%) and Peapod Lane Capital LLC (1.2%). In their latest 13Fs, 1 manager opened a new position and 2 added to one.
- No member of Congress has disclosed a trade in FLDM.
FLDM insider trading
No open-market insider purchases or sales of FLDM were filed in the last 90 days.
Who owns FLDM? Hedge funds and superinvestors
10 13F filers hold FLDM among their 50 largest positions, worth $127.8M combined. The biggest bets by portfolio weight are Casdin Capital, LLC (3.7%), Mak Capital One LLC (3.3%) and Peapod Lane Capital LLC (1.2%). In their latest 13Fs, 1 manager opened a new position and 2 added to one.
| Manager | % of portfolio | Value | Shares | Last quarter | 13F |
|---|---|---|---|---|---|
| Casdin Capital, LLCHedge fund | 3.7% | $73.0M | 88,783,856 | +0.0% shares | Q2 2026 |
| Mak Capital One LLCHedge fund | 3.3% | $23.7M | 28,813,904 | +10.1% shares | Q2 2026 |
| Long Focus Capital Management, LLCHedge fund | 0.8% | $19.3M | 23,500,000 | +46.7% shares | Q2 2026 |
| Hollow Brook Wealth Management LLCWealth manager | 0.7% | $3.9M | 5,200,829 | -5.5% shares | Q3 2026 |
| Tikvah Management LLCInvestment manager | 0.9% | $2.9M | 3,551,058 | -0.0% shares | Q2 2026 |
| Mink Brook Asset Management LLCHedge fund | 0.8% | $1.8M | 2,190,973 | — | Q2 2026 |
| Peapod Lane Capital LLCInstitutional asset manager | 1.2% | $1.7M | 2,248,249 | -6.8% shares | Q3 2026 |
| Loews CorpInsurance company | 0.0% | $1.0M | 1,250,000 | New | Q2 2026 |
| Johnson & JohnsonCorporation | 0.0% | $231K | 311,967 | +0.0% shares | Q3 2026 |
| QVIDTVM Management LLCHedge fund | 0.2% | $183K | 222,000 | -3.2% shares | Q2 2026 |
Each manager counts with its latest 13F (Q3 2026: 3, Q2 2026: 7). Screen FLDM in the grand portfolio →
FLDM stock trades by members of Congress
No member of Congress has disclosed a trade in FLDM.
FLDM questions and answers
Are insiders buying FLDM stock?
No open-market insider purchases or sales of FLDM were filed in the last 90 days.
Which hedge funds own FLDM?
10 13F filers hold FLDM among their 50 largest positions, worth $127.8M combined. The biggest bets by portfolio weight are Casdin Capital, LLC (3.7%), Mak Capital One LLC (3.3%) and Peapod Lane Capital LLC (1.2%). In their latest 13Fs, 1 manager opened a new position and 2 added to one.
Has Congress traded FLDM?
No member of Congress has disclosed a trade in FLDM.
Who is the largest holder of FLDM?
Among 13F filers, Casdin Capital, LLC reports the largest FLDM position, $73.0M (88,783,856 shares) in its Q2 2026 13F. The biggest bet by portfolio weight is Casdin Capital, LLC's: 3.7% of its portfolio.
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