STANDARD BIOTOOLS INC.
Total Trades
32
Buys
24
Sells
8
Largest Trade
$1M+
Insiders
7
Institutional Funds
124
Inst. Value
$1M+
Activist Filings
44
Insider Trades
| Insider | Title | Type | Value | Shares | Price | Date |
|---|---|---|---|---|---|---|
| Casdin Partners Master Fund, L.P. | Director | BUY | $500K+ | 350K | $1.44 | Dec 5, 2025 |
| Casdin Partners Master Fund, L.P. | Director | BUY | $1M+ | 7.7M | $1.31 | Nov 26, 2025 |
| Casdin Partners Master Fund, L.P. | Director | BUY | $1M+ | 1.1M | $1.28 | Nov 21, 2025 |
| Casdin Partners Master Fund, L.P. | Director | BUY | $1M+ | 925K | $1.22 | Nov 17, 2025 |
| Casdin Partners Master Fund, L.P. | Director | BUY | $1M+ | 1.2M | $1.17 | Nov 13, 2025 |
| Casdin Partners Master Fund, L.P. | Director | BUY | $100K–$500K | 100K | $1.29 | Sep 12, 2025 |
| Casdin Partners Master Fund, L.P. | Director | BUY | $500K+ | 500K | $1.27 | Sep 5, 2025 |
| Casdin Partners Master Fund, L.P. | Director | BUY | $500K+ | 525K | $1.25 | Aug 27, 2025 |
| Kim Hanjoon Alex | CFO | SELL | $1K–$15K | 1K | $0.94 | May 28, 2025 |
| Mackay Sean | SVP & Chief Busine… | SELL | $1K–$15K | 13K | $0.94 | May 28, 2025 |
| Egholm Michael | President & CEO | SELL | $1K–$15K | 5K | $0.94 | May 28, 2025 |
| Kim Hanjoon Alex | CFO | SELL | $1K–$15K | 1K | $1.00 | May 28, 2025 |
| Egholm Michael | President & CEO | SELL | $1K–$15K | 5K | $1.00 | May 28, 2025 |
| Mackay Sean | SVP & Chief Busine… | SELL | $15K–$50K | 25K | $1.02 | May 23, 2025 |
| Egholm Michael | President & CEO | SELL | $1K–$15K | 5K | $1.03 | May 23, 2025 |
| Kim Hanjoon Alex | CFO | SELL | $1K–$15K | 1K | $1.03 | May 23, 2025 |
| Casdin Partners Master Fund, L.P. | Director | BUY | $500K+ | 250K | $2.19 | Aug 30, 2024 |
| Casdin Partners Master Fund, L.P. | Director | BUY | $1M+ | 750K | $2.06 | Aug 27, 2024 |
| Casdin Partners Master Fund, L.P. | Director | BUY | $1M+ | 1.3M | $1.88 | Aug 22, 2024 |
| Casdin Partners Master Fund, L.P. | Director | BUY | $1M+ | 1.2M | $1.59 | Aug 16, 2024 |
| Casdin Partners Master Fund, L.P. | Director | BUY | $100K–$500K | 100K | $2.60 | May 29, 2024 |
| Casdin Partners Master Fund, L.P. | Director | BUY | $1M+ | 600K | $2.57 | May 22, 2024 |
| Black Jeffrey G. | CFO | BUY | $100K–$500K | 86K | $2.25 | May 22, 2023 |
| Casdin Eli | Director | BUY | $1M+ | 1.2M | $2.19 | May 20, 2023 |
| Casdin Partners Master Fund, L.P. | Director | BUY | $1M+ | 1.2M | $2.19 | May 20, 2023 |
| Caligan Partners LP | 10% Owner | BUY | $500K+ | 301K | $1.75 | Aug 5, 2022 |
| Caligan Partners LP | 10% Owner | BUY | $500K+ | 620K | $1.54 | Aug 2, 2022 |
| Caligan Partners LP | 10% Owner | BUY | $100K–$500K | 100K | $1.70 | Jun 15, 2022 |
| Caligan Partners LP | 10% Owner | BUY | $1M+ | 488K | $2.88 | May 11, 2022 |
| Caligan Partners LP | 10% Owner | BUY | $1M+ | 400K | $2.69 | May 2, 2022 |
| Caligan Partners LP | 10% Owner | BUY | $500K+ | 195K | $3.80 | Apr 13, 2022 |
| Caligan Partners LP | 10% Owner | BUY | $1M+ | 510K | $3.77 | Apr 8, 2022 |
Institutional Ownership
13F filings as of Dec 31, 2025 · 124 funds holding
| Fund | Shares | Value | Type |
|---|---|---|---|
| VIKING GLOBAL INVESTORS LP | 58.7M | $1M+ | SH |
| MAK CAPITAL ONE LLC | 19.3M | $1M+ | SH |
| STATE STREET CORP | 6.5M | $1M+ | SH |
| GEODE CAPITAL MANAGEMENT, LLC | 6.4M | $1M+ | SH |
| Neuberger Berman Group LLC | 4.4M | $1M+ | SH |
| Sumitomo Mitsui Trust Group, Inc. | 4.3M | $1M+ | SH |
| Amova Asset Management Americas, Inc. | 4.3M | $1M+ | SH |
| Tikvah Management LLC | 3.6M | $1M+ | SH |
| ARK Investment Management LLC | 3.1M | $1M+ | SH |
| BARCLAYS PLC | 3.1M | $1M+ | SH |
| ROYCE & ASSOCIATES LP | 2.9M | $1M+ | SH |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 2.5M | $1M+ | SH |
| VANGUARD GROUP INC | 1.9M | $1M+ | SH |
| Nan Fung Group Holdings Ltd | 1.9M | $1M+ | SH |
| JANE STREET GROUP, LLC | 705K | $500K+ | SH |
| Swiss National Bank | 490K | $500K+ | SH |
| Pacific Capital Partners Ltd | 475K | $500K+ | SH |
| Intellectus Partners, LLC | 405K | $500K+ | SH |
| RHUMBLINE ADVISERS | 374K | $100K–$500K | SH |
| WELLS FARGO & COMPANY/MN | 336K | $100K–$500K | SH |
Activist & 5%+ Owners
SC 13D/13G filings — investors holding 5%+ of outstanding shares
SC 13G · Jan 7, 2026
5.2%
20.0M shares
SC 13D/A · Nov 28, 2025
22.9%
88.4M shares
SC 13D/A · Mar 5, 2025
20.4%
76.1M shares
Indaba Capital Management, L.P.
SC 13G/A · Nov 14, 2024
0.7%
2.6M shares
SC 13G/A · Nov 12, 2024
4.7%
17.3M shares
SC 13G · Nov 8, 2024
6.0%
22.5M shares
SC 13G/A · Nov 4, 2024
4.7%
17.3M shares
SC 13G · Oct 24, 2024
6.0%
22.5M shares
SC 13G/A · Oct 21, 2024
1.9%
7.0M shares
SC 13D/A · Aug 15, 2024
18.6%
69.0M shares
SC 13D/A · Jun 3, 2024
17.3%
64.0M shares
SC 13D/A · May 22, 2024
17.2%
63.7M shares
SC 13G/A · Mar 20, 2024
15.3%
58.7M shares
SC 13D/A · Mar 20, 2024
16.2%
61.9M shares
SC 13G · Feb 26, 2024
5.2%
15.0M shares
Indaba Capital Management, L.P.
SC 13G/A · Feb 14, 2024
9.9%
8.0M shares
The Vanguard Group - 23-1945930
SC 13G · Feb 13, 2024
5.2%
4.1M shares
SC 13D/A · Jan 12, 2024
0.0%
4.4M shares
SC 13D/A · Jan 9, 2024
16.2%
52.8M shares
SC 13G · Jan 9, 2024
9.5%
29.1M shares
SC 13D/A · Jan 8, 2024
2.4%
7.0M shares
SC 13D/A · Nov 22, 2023
9.5%
8.3M shares
SC 13D · Oct 16, 2023
9.5%
8.3M shares
PRIMECAP Management Company 95-3868081
SC 13G/A · Jul 7, 2023
4.1%
3.2M shares
SC 13D/A · Jul 3, 2023
9.9%
7.8M shares
SC 13G/A · Feb 14, 2023
1.7%
1.4M shares
SC 13G/A · Feb 14, 2023
9.5%
8.3M shares
Indaba Capital Management, L.P.
SC 13G/A · Feb 14, 2023
9.9%
7.9M shares
PRIMECAP Management Company 95-3868081
SC 13G · Feb 9, 2023
5.8%
4.6M shares
SC 13D/A · Dec 30, 2022
10.8%
8.6M shares
SC 13G/A · Nov 14, 2022
0.0%
0 shares
SC 13D/A · Aug 5, 2022
14.8%
11.4M shares
SC 13G · Jul 8, 2022
2.6%
2.0M shares
SC 13D/A · Jun 7, 2022
13.5%
10.4M shares
SC 13D/A · May 3, 2022
12.3%
9.5M shares
SC 13G · Apr 14, 2022
9.5%
8.1M shares
SC 13D · Apr 8, 2022
32.7%
37.6M shares
SC 13D/A · Mar 29, 2022
10.9%
8.4M shares
SC 13G · Mar 24, 2022
6.0%
4.7M shares
SC 13G · Mar 7, 2022
3.2%
2.5M shares
Indaba Capital Management, L.P.
SC 13G/A · Feb 14, 2022
9.9%
7.6M shares
Russell Investments Group, Ltd. IRS Identification No. of Above Persons 98-1320542
SC 13G/A · Feb 11, 2022
0.0%
0 shares
SC 13G/A · Feb 11, 2022
0.5%
402K shares
PRIMECAP Management Company 95-3868081
SC 13G/A · Feb 10, 2022
6.7%
5.1M shares