Standard BioTools Inc.
US ˙ NasdaqGS ˙ US34385P1084

SecurityLAB / Standard BioTools Inc.
InstitutionCitigroup Inc
Latest Disclosed Ownership31,294 shares
Latest Disclosed Value $ 28,768
Citigroup Inc reports 136.48% increase in ownership of LAB / Standard BioTools Inc.

On May 11, 2026 - Citigroup Inc filed a 13F-HR form disclosing ownership of 31,294 shares of Standard BioTools Inc. (US:LAB) valued at $28,769 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 13,233 shares of Standard BioTools Inc.. This represents a change in shares of 136.48% during the quarter. The current value of the position is $35,675 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-11 2026-03-31 13F STANDARD BIOTOOLS COM 34385P108 31,294 18,061 136.48 29 75.00 0.0000
2026-02-13 2025-12-31 13F STANDARD BIOTOOLS COM 34385P108 13,233 -5,792 -30.44 17 -33.33 0.0000
2025-11-10 2025-09-30 13F STANDARD BIOTOOLS COM 34385P108 19,025 -109,231 -85.17 25 -84.31 0.0000
2025-08-11 2025-06-30 13F STANDARD BIOTOOLS COM 34385P108 128,256 -96,571 -42.95 154 -36.78 0.0001
2025-05-12 2025-03-31 13F STANDARD BIOTOOLS COM 34385P108 224,827 -23,028 -9.29 243 -44.11 0.0001
2025-02-12 2024-12-31 13F STANDARD BIOTOOLS COM 34385P108 247,855 17,230 7.47 434 -2.70 0.0003
2024-11-12 2024-09-30 13F STANDARD BIOTOOLS COM 34385P108 230,625 154,691 203.72 445 232.09 0.0003
2024-08-12 2024-06-30 13F STANDARD BIOTOOLS COM 34385P108 75,934 -600,242 -88.77 134 -92.69 0.0001
2024-05-10 2024-03-31 13F STANDARD BIOTOOLS COM 34385P108 676,176 352,604 108.97 1,832 156.22 0.0012
2024-02-09 2023-12-31 13F STANDARD BIOTOOLS COM 34385P108 323,572 133,781 70.49 715 30.00 0.0005
2023-12-06 2023-09-30 13F/A-1 STANDARD BIOTOOLS COM 34385P108 189,791 189,791 550 0.0004
2023-11-09 2023-09-30 13F STANDARD BIOTOOLS COM 34385P108 189,791 189,791 550 0.0004
2023-05-11 2023-03-31 13F STANDARD BIOTOOLS COM 34385P108 0 -61 -100.00 0 0.0000
2023-02-09 2022-12-31 13F STANDARD BIOTOOLS COM 34385P108 61 -5 -7.58 0 0.0000
2022-11-10 2022-09-30 13F STANDARD BIOTOOLS COM 34385P108 66 -1,724 -96.31 0 -100.00
2022-08-10 2022-06-30 13F STANDARD BIOTOOLS COM 34385P108 1,790 -3,815 -68.06 3 -85.00 0.0000
2022-05-12 2022-03-31 13F FLUIDIGM CORP DEL COM 34385P108 5,605 -15,323 -73.22 20 -75.61 0.0000
2022-02-10 2021-12-31 13F FLUIDIGM CORP DEL COM 34385P108 20,928 -94,480 -81.87 82 -89.22 0.0000
2021-11-10 2021-09-30 13F FLUIDIGM CORP DEL COM 34385P108 115,408 -3,519 -2.96 761 3.82 0.0004
2021-08-10 2021-06-30 13F FLUIDIGM CORP DEL COM 34385P108 118,927 113,256 1,997.11 733 2,719.23 0.0004
2021-05-13 2021-03-31 13F FLUIDIGM CORP DEL COM 34385P108 5,671 -27,893 -83.10 26 -87.06 0.0000
2021-02-11 2020-12-31 13F FLUIDIGM CORP DEL COM 34385P108 33,564 30,173 889.80 201 704.00 0.0001
2020-11-12 2020-09-30 13F FLUIDIGM CORP DEL COM 34385P108 3,391 -6,150 -64.46 25 -34.21 0.0000
2020-08-12 2020-06-30 13F FLUIDIGM CORP DEL COM 34385P108 9,541 -33,889 -78.03 38 -65.45 0.0000
2020-05-12 2020-03-31 13F FLUIDIGM CORP DEL COM 34385P108 43,430 29,187 204.92 110 120.00 0.0001
2020-02-12 2019-12-31 13F FLUIDIGM CORP DEL COM 34385P108 14,243 8,095 131.67 50 78.57 0.0000
2019-11-08 2019-09-30 13F FLUIDIGM CORP DEL COM 34385P108 6,148 -32,434 -84.07 28 -94.11 0.0000
2019-08-12 2019-06-30 13F FLUIDIGM CORP DEL COM 34385P108 38,582 28,894 298.25 475 271.09 0.0004
2019-05-13 2019-03-31 13F FLUIDIGM CORP DEL COM 34385P108 9,688 2,797 40.59 128 113.33 0.0001
2019-02-12 2018-12-31 13F FLUIDIGM CORP DEL COM 34385P108 6,891 -399 -5.47 60 9.09 0.0001
2018-11-13 2018-09-30 13F FLUIDIGM CORP DEL COM 34385P108 7,290 3,520 93.37 55 150.00 0.0000
2018-08-10 2018-06-30 13F FLUIDIGM CORP DEL COM 34385P108 3,770 2,778 280.04 22 266.67 0.0000
2018-05-11 2018-03-31 13F FLUIDIGM CORP DEL COM 34385P108 992 -343 -25.69 6 -25.00 0.0000
2018-02-12 2017-12-31 13F FLUIDIGM CORP DEL COM 34385P108 1,335 1,238 1,276.29 8 0.0000
2017-11-13 2017-09-30 13F FLUIDIGM CORP DEL COM 34385P108 97 23 31.08 0 0.0000
2017-08-11 2017-06-30 13F FLUIDIGM CORP DEL COM 34385P108 74 -144 -66.06 0 -100.00
2017-05-12 2017-03-31 13F FLUIDIGM CORP DEL COM 34385P108 218 -2,339 -91.47 1 -95.00 0.0000
2016-11-10 2016-09-30 13F FLUIDIGM CORP DEL COM 34385P108 2,557 -545 -17.57 20 -28.57 0.0000
2016-08-12 2016-06-30 13F FLUIDIGM CORP DEL COM 34385P108 3,102 -20,648 -86.94 28 -85.42 0.0000
2016-05-13 2016-03-31 13F FLUIDIGM CORP DEL COM 34385P108 23,750 14,883 167.85 192 100.00 0.0002
2016-02-12 2015-12-31 13F FLUIDIGM CORP DEL COM 34385P108 8,867 8,791 11,567.11 96 9,500.00 0.0001
2015-11-13 2015-09-30 13F FLUIDIGM CORP DEL COM 34385P108 76 -41,427 -99.82 1 -99.90 0.0000
2015-08-13 2015-06-30 13F FLUIDIGM CORP DEL COM 34385P108 41,503 39,964 2,596.75 1,005 1,446.15 0.0009
2015-05-14 2015-03-31 13F FLUIDIGM CORP DEL COM 34385P108 1,539 -3,277 -68.04 65 -59.88 0.0001
2015-02-17 2014-12-31 13F FLUIDIGM CORP DEL COM 34385P108 4,816 3,782 365.76 162 548.00 0.0001
2014-11-14 2014-09-30 13F FLUIDIGM CORP DEL COM 34385P108 1,034 720 229.30 25 177.78 0.0000
2014-08-14 2014-06-30 13F FLUIDIGM CORP DEL COM 34385P108 314 -3,736 -92.25 9 -94.94 0.0000
2014-05-15 2014-03-31 13F FLUIDIGM CORP DEL COM 34385P108 4,050 -4,918 -54.84 178 -48.10 0.0002
2014-02-14 2013-12-31 13F FLUIDIGM CORP DEL COM 34385P108 8,968 8,657 2,783.60 343 4,800.00 0.0003
2013-11-14 2013-09-30 13F FLUIDIGM CORP DEL COM 34385P108 311 78 33.48 7 75.00 0.0000
2013-08-14 2013-06-30 13F FLUIDIGM CORP DEL COM 34385P108 233 233 4 0.0000
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.