Thermo Fisher Scientific Inc.
MX ˙ BMV ˙ US8835561023
SecurityMX:TMO / Thermo Fisher Scientific Inc.
InstitutionLido Advisors, LLC
Latest Disclosed Ownership39,978 shares
Latest Disclosed Value $ 19,664,145
Lido Advisors, LLC ownership in TMO / Thermo Fisher Scientific Inc.

On May 13, 2026 - Lido Advisors, LLC filed a 13F-HR form disclosing ownership of 39,978 shares of Thermo Fisher Scientific Inc. (MX:TMO) valued at $19,664,145 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 44,094 shares of Thermo Fisher Scientific Inc.. This represents a change in shares of -9.33% during the quarter.

Lido Advisors, LLC has a history of taking positions in derivatives of the underlying security (TMO) in the form of stock options.

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.

Upgrade to unlock premium data and export to Excel .

Institutional Put/Call Ratios
(Premium Subscription Required)

In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

MX:TMO / Thermo Fisher Scientific Inc. Historical Put/Call Ratio
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)
2026-05-13 2026-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 39,978 -4,116 -9.33 19,664 -14.31 0.0573
2026-02-10 2025-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 44,094 410 0.94 22,949 8.25 0.0686
2025-11-14 2025-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 43,684 9,269 26.93 21,201 51.84 0.0664
2025-08-13 2025-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 34,415 1,935 5.96 13,963 -13.66 0.0544
2025-05-15 2025-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 32,480 8,019 32.78 16,172 27.01 0.0728
2025-02-14 2024-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 24,461 2,934 13.63 12,733 -4.39 0.0580
2024-11-14 2024-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 21,527 -543 -2.46 13,316 9.03 0.0664
2024-08-15 2024-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 22,070 96 0.44 12,214 -4.43 0.0680
2024-05-15 2024-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 21,974 -252 -1.13 12,780 8.25 0.0752
2024-02-14 2023-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 22,226 723 3.36 11,805 8.46 0.0798
2023-11-14 2023-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 21,503 479 2.28 10,884 -0.77 0.0828
2023-08-09 2023-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 21,024 1,635 8.43 10,969 -1.84 0.0783
2023-05-15 2023-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 19,389 7,779 67.00 11,175 74.80 0.1087
2023-02-14 2022-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 11,610 864 8.04 6,394 17.32 0.0780
2022-11-14 2022-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 10,746 -1,963 -15.45 5,449 -21.09 0.0685
2022-08-15 2022-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 12,709 -1,765 -12.19 6,905 -19.23 0.0915
2022-05-17 2022-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 14,474 3,888 36.73 8,549 21.04 0.0953
2022-02-15 2021-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 10,586 2,084 24.51 7,063 45.42 0.0769
2022-02-15 2021-09-30 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 8,502 1,198 16.40 4,857 31.73 0.0679
2021-11-12 2021-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 16,028 8,724 4,710 0.0610
2021-08-12 2021-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 7,304 -1,465 -16.71 3,687 -7.92 0.0513
2021-05-13 2021-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 8,769 1,920 28.03 4,004 25.44 0.1167
2021-02-08 2020-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 6,849 -1,111 -13.96 3,192 -9.24 0.1073
2020-11-12 2020-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 7,960 -263 -3.20 3,517 17.98 0.1508
2020-08-12 2020-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 8,223 -1,041 -11.24 2,981 13.35 0.1452
2020-05-13 2020-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 9,264 337 3.78 2,630 -9.37 0.1698
2020-02-07 2019-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 8,927 1,464 19.62 2,902 33.43 0.1689
2019-11-12 2019-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 7,463 265 3.68 2,175 2.84 0.1690
2019-08-14 2019-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 7,198 10 0.14 2,115 7.41 0.1790
2019-05-10 2019-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 7,188 -105 -1.44 1,969 20.58 0.1760
2019-02-14 2018-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 7,293 839 13.00 1,633 3.62 0.2259
2018-11-14 2018-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 6,454 780 13.75 1,576 34.13 0.2035
2018-08-14 2018-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 5,674 720 14.53 1,175 14.97 0.1780
2018-05-09 2018-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 4,954 501 11.25 1,022 20.95 0.1768
2018-02-15 2017-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 4,453 267 6.38 845 4.19 0.1382
2017-11-13 2017-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 4,186 2,310 123.13 811 148.01 0.1390
2017-08-14 2017-06-30 13F Thermo Fisher Scientific COM 883556102 1,876 239 14.60 327 17.20 0.0679
2017-05-15 2017-03-31 13F Thermo Fisher Scientific COM 883556102 1,637 210 14.72 279 38.81 0.0772
2017-09-21 2016-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,427 1,427 201 0.0496
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-13 2026-03-31 13F THERMO FISHER SCIENTIFIC COM Put 600 -64.71 295 -70.15 n/a n/a n/a
2026-02-10 2025-12-31 13F THERMO FISHER SCIENTIFIC COM Put 1,700 0.00 985 19.54 n/a n/a n/a
2025-11-14 2025-09-30 13F THERMO FISHER SCIENTIFIC COM Put 1,700 0.00 825 19.59 n/a n/a n/a
2025-08-13 2025-06-30 13F THERMO FISHER SCIENTIFIC COM Put 1,700 325.00 689 246.23 n/a n/a n/a
2025-05-15 2025-03-31 13F THERMO FISHER SCIENTIFIC COM Put 400 -50.00 199 -52.16 n/a n/a n/a
2025-02-14 2024-12-31 13F THERMO FISHER SCIENTIFIC COM Put 800 -20.00 416 -32.69 n/a n/a n/a
2024-11-14 2024-09-30 13F THERMO FISHER SCIENTIFIC COM Put 1,000 66.67 619 86.71 n/a n/a n/a
2024-08-15 2024-06-30 13F THERMO FISHER SCIENTIFIC COM Put 600 200.00 332 185.34 n/a n/a n/a
2024-05-15 2024-03-31 13F THERMO FISHER SCIENTIFIC COM Put 200 -66.67 116 -63.52 n/a n/a n/a
2024-02-14 2023-12-31 13F THERMO FISHER SCIENTIFIC COM Put 600 -25.00 318 -21.29 n/a n/a n/a
2023-11-14 2023-09-30 13F THERMO FISHER SCIENTIFIC COM Put 800 33.33 405 29.07 n/a n/a n/a
2023-08-09 2023-06-30 13F THERMO FISHER SCIENTIFIC COM Put 600 0.00 313 -9.28 n/a n/a n/a
2023-05-15 2023-03-31 13F THERMO FISHER SCIENTIFIC COM Put 600 0.00 346 4.55 n/a n/a n/a
2023-02-14 2022-12-31 13F THERMO FISHER SCIENTIFIC COM Put 600 330 n/a n/a n/a
2020-02-07 2019-12-31 13F THERMO FISHER SCIENTIFIC COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2021-11-12 2019-09-30 13F/A THERMO FISHER SCIENTIFIC COM Put 1,300 0.00 378 -0.79 n/a n/a n/a
2021-11-12 2019-06-30 13F/A THERMO FISHER SCIENTIFIC COM Put 1,300 0.00 381 7.32 n/a n/a n/a
2021-11-12 2019-03-31 13F/A THERMO FISHER SCIENTIFIC COM Put 1,300 355 n/a n/a n/a
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.