Thermo Fisher Scientific Inc.
MX ˙ BMV ˙ US8835561023
SecurityMX:TMO / Thermo Fisher Scientific Inc.
InstitutionHrt Financial Lp
Latest Disclosed Ownership24,300 shares
Latest Disclosed Value $ 11,944
Hrt Financial Lp ownership in TMO / Thermo Fisher Scientific Inc.

On May 14, 2026 - Hrt Financial Lp filed a 13F-HR form disclosing ownership of 24,300 shares of Thermo Fisher Scientific Inc. (MX:TMO) valued at $11,944 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 0 shares of Thermo Fisher Scientific Inc..

Hrt Financial Lp has a history of taking positions in derivatives of the underlying security (TMO) in the form of stock options. The firm currently holds call options representing 700 of underlying shares valued at $406 USD and put options representing 24,300 of underlying shares valued at $11,944 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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)
2026-05-14 2026-03-31 13F THERMO FISHER SCIENTIFIC PUT 883556952 24,300 22,400 1,178.95 12 0.0298
2026-05-14 2026-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 554 554 0 0.0007
2026-02-12 2025-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 0 -20,572 -100.00 0 -100.00
2025-11-14 2025-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 20,572 -110,515 -84.31 10 -83.02 0.0367
2025-08-14 2025-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 131,087 98,267 299.41 53 231.25 0.2340
2025-05-15 2025-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 32,820 11,173 51.61 16 45.45 0.1034
2025-02-14 2024-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 21,647 -25,877 -54.45 11 -62.07 0.0581
2024-11-12 2024-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 47,524 -108,379 -69.52 29 -66.28 0.1460
2024-08-12 2024-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 155,903 155,203 22,171.86 86 0.4836
2024-05-13 2024-03-31 13F THERMO FISHER SCIENTIFIC CALL 883556902 700 -200 -22.22 0 0.0025
2024-02-09 2023-12-31 13F THERMO FISHER SCIENTIFIC CALL 883556902 900 900 0 0.0035
2024-02-09 2023-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 5,373 3
2023-11-13 2023-09-30 13F THERMO FISHER SCIENTIFIC PUT 883556952 1,900 1,000 111.11 1 -100.00 0.0096
2023-11-13 2023-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 125,531 64
2023-08-11 2023-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 30,843 29,943 3,327.00 16 0.1505
2023-05-12 2023-03-31 13F THERMO FISHER SCIENTIFIC PUT 883556952 900 -300 -25.00 1 0.0063
2023-02-10 2022-12-31 13F THERMO FISHER SCIENTIFIC PUT 883556952 1,200 300 33.33 1 -100.00 0.0093
2022-11-14 2022-09-30 13F THERMO FISHER SCIENTIFIC PUT 883556952 900 900 456 0.0049
2022-11-14 2022-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 15,283 7,751
2021-11-15 2021-09-30 13F THERMO FISHER SCIENTIFIC OM 883556102 0 -83,741 -100.00 0 -100.00
2021-08-16 2021-06-30 13F THERMO FISHER SCIENTIFIC OM 883556102 83,741 73,212 695.34 42,244 779.17 0.3874
2021-05-17 2021-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 10,529 10,529 4,805 0.0486
2020-11-13 2020-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 0 -17,110 -100.00 0 -100.00
2020-08-14 2020-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 17,110 2,943 20.77 6,199 54.32 0.1862
2020-05-15 2020-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 14,167 14,167 4,017 0.2589
2020-02-14 2019-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 0 -6,364 -100.00 0 -100.00
2019-11-14 2019-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 6,364 6,364 1,853 0.0875
Disclosed Call 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
(%)
2024-05-13 2024-03-31 13F THERMO FISHER SCIENTIFIC CALL 700 -22.22 0 n/a n/a n/a
2024-02-09 2023-12-31 13F THERMO FISHER SCIENTIFIC CALL 900 0 n/a n/a n/a
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
(%)
2026-05-14 2026-03-31 13F THERMO FISHER SCIENTIFIC PUT 24,300 1,178.95 12 n/a n/a n/a
2023-11-13 2023-09-30 13F THERMO FISHER SCIENTIFIC PUT 1,900 111.11 1 -100.00 n/a n/a n/a
2023-05-12 2023-03-31 13F THERMO FISHER SCIENTIFIC PUT 900 -25.00 1 n/a n/a n/a
2023-02-10 2022-12-31 13F THERMO FISHER SCIENTIFIC PUT 1,200 33.33 1 -100.00 n/a n/a n/a
2022-11-14 2022-09-30 13F THERMO FISHER SCIENTIFIC PUT 900 456 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.