Thermo Fisher Scientific Inc.
MX ˙ BMV ˙ US8835561023
SecurityMX:TMO / Thermo Fisher Scientific Inc.
InstitutionVerition Fund Management LLC
Latest Disclosed Ownership21,462 shares
Latest Disclosed Value $ 10,549,217
Verition Fund Management LLC ownership in TMO / Thermo Fisher Scientific Inc.

On May 15, 2026 - Verition Fund Management LLC filed a 13F-HR form disclosing ownership of 21,462 shares of Thermo Fisher Scientific Inc. (MX:TMO) valued at $10,549,217 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 17,363 shares of Thermo Fisher Scientific Inc.. This represents a change in shares of 23.61% during the quarter.

Verition Fund Management LLC 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 0 of underlying shares valued at $0 USD and put options representing 3,400 of underlying shares valued at $1,671,202 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.

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Institutional Put/Call Ratios
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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)
2026-05-15 2026-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 21,462 4,099 23.61 10,549 4.86 0.0684
2026-02-13 2025-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 17,363 8,074 86.92 10,061 123.31 0.0395
2025-11-14 2025-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 9,289 -26,252 -73.86 4,505 -68.74 0.0186
2025-08-14 2025-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 35,541 1,902 5.65 14,410 -13.91 0.0641
2025-05-15 2025-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 33,639 7,103 26.77 16,739 21.25 0.0780
2025-02-14 2024-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 26,536 19,699 288.12 13,805 226.41 0.0546
2024-11-14 2024-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 6,837 -10,788 -61.21 4,229 -56.61 0.0213
2024-08-14 2024-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 17,625 -4,933 -21.87 9,747 -25.66 0.0533
2024-05-14 2024-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 22,558 7,986 54.80 13,111 69.51 0.0897
2024-02-14 2023-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 14,572 -4,681 -24.31 7,735 -20.64 0.0605
2023-11-14 2023-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 19,253 12,161 171.47 9,745 163.38 0.1137
2023-08-14 2023-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 7,092 6,476 1,051.30 3,700 942.25 0.0494
2023-05-15 2023-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 616 -1,346 -68.60 355 -67.13 0.0049
2023-02-14 2022-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,962 -734 -27.23 1,080 -21.05 0.0169
2023-01-18 2022-09-30 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 2,696 1,003 59.24 1,368 48.70 0.0153
2022-11-14 2022-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 2,696 1,003 1,368 0.0155
2022-08-30 2022-06-30 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 1,693 1,693 920 0.0182
2022-08-15 2022-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,693 1,693 920 0.0156
2022-06-02 2022-03-31 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 0 -1,731 -100.00 0 -100.00
2022-05-13 2022-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 0 -1,731 0
2022-05-03 2021-12-31 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 1,731 1,731 1,155 0.0079
2022-02-14 2021-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 5,265 5,265 3,513 0.0227
2021-11-15 2021-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 0 -2,684 -100.00 0 -100.00
2021-08-16 2021-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 2,684 1,512 129.01 1,354 153.08 0.0123
2021-05-18 2021-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,172 1,172 535 0.0060
2020-05-15 2020-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 0 -4,881 -100.00 0 -100.00
2020-02-14 2019-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 4,881 4,881 1,586 0.0289
2018-11-14 2018-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 0 -1,258 -100.00 0 -100.00
2018-08-15 2018-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,258 -1,136 -47.45 261 -47.17 0.0159
2018-05-15 2018-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 2,394 2,394 494 0.0367
2017-11-14 2017-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 0 -14,668 -100.00 0 -100.00
2017-08-15 2017-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 14,668 -9,960 -40.44 2,559 -32.36 0.2487
2017-05-12 2017-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 24,628 8,069 48.73 3,783 61.94 0.3527
2017-02-14 2016-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 16,559 16,559 0.00 2,336 0.2015
2015-05-15 2015-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 0 -1,971 -100.00 0 -100.00
2015-02-13 2014-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,971 -6,855 -77.67 247 -77.00 0.0554
2014-11-14 2014-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 8,826 1,403 18.90 1,074 22.60 0.1515
2014-08-14 2014-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 7,423 7,423 114.04 876 198.98 0.0937
2013-11-14 2013-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 0 -3,468 -100.00 0 -100.00
2013-08-12 2013-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 3,468 3,468 293 0.0538
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
(%)
2026-02-13 2025-12-31 13F THERMO FISHER SCIENTIFIC COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2025-11-14 2025-09-30 13F THERMO FISHER SCIENTIFIC COM Call 12,500 -15.54 6,063 1.03 n/a n/a n/a
2025-08-14 2025-06-30 13F THERMO FISHER SCIENTIFIC COM Call 14,800 23.33 6,001 0.49 n/a n/a n/a
2025-05-15 2025-03-31 13F THERMO FISHER SCIENTIFIC COM Call 12,000 100.00 5,971 91.32 n/a n/a n/a
2025-02-14 2024-12-31 13F THERMO FISHER SCIENTIFIC COM Call 6,000 -24.05 3,121 -36.12 n/a n/a n/a
2024-11-14 2024-09-30 13F THERMO FISHER SCIENTIFIC COM Call 7,900 -21.00 4,887 -11.65 n/a n/a n/a
2024-08-14 2024-06-30 13F THERMO FISHER SCIENTIFIC COM Call 10,000 170.27 5,530 157.21 n/a n/a n/a
2024-05-14 2024-03-31 13F THERMO FISHER SCIENTIFIC COM Call 3,700 362.50 2,150 407.08 n/a n/a n/a
2024-02-14 2023-12-31 13F THERMO FISHER SCIENTIFIC COM Call 800 0.00 425 4.95 n/a n/a n/a
2023-11-14 2023-09-30 13F THERMO FISHER SCIENTIFIC COM Call 800 33.33 405 29.07 n/a n/a n/a
2023-08-14 2023-06-30 13F THERMO FISHER SCIENTIFIC COM Call 600 50.00 313 36.09 n/a n/a n/a
2023-05-15 2023-03-31 13F THERMO FISHER SCIENTIFIC COM Call 400 231 n/a n/a n/a
2022-08-30 2022-06-30 13F/A THERMO FISHER SCIENTIFIC COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2022-08-15 2022-06-30 13F THERMO FISHER SCIENTIFIC COM Call 0 0 n/a n/a n/a
2022-06-02 2022-03-31 13F/A THERMO FISHER SCIENTIFIC COM Call 2,300 666.67 1,359 579.50 n/a n/a n/a
2022-05-13 2022-03-31 13F THERMO FISHER SCIENTIFIC COM Call 2,300 1,359 n/a n/a n/a
2022-05-03 2021-12-31 13F/A THERMO FISHER SCIENTIFIC COM Call 300 200 n/a n/a n/a
2022-02-14 2021-12-31 13F THERMO FISHER SCIENTIFIC COM Call 300 200 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
(%)
2026-05-15 2026-03-31 13F THERMO FISHER SCIENTIFIC COM Put 3,400 1,671 n/a n/a n/a
2026-02-13 2025-12-31 13F THERMO FISHER SCIENTIFIC COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2025-11-14 2025-09-30 13F THERMO FISHER SCIENTIFIC COM Put 2,700 -61.43 1,310 -53.88 n/a n/a n/a
2025-08-14 2025-06-30 13F THERMO FISHER SCIENTIFIC COM Put 7,000 -15.66 2,838 -31.28 n/a n/a n/a
2025-05-15 2025-03-31 13F THERMO FISHER SCIENTIFIC COM Put 8,300 137.14 4,130 126.92 n/a n/a n/a
2025-02-14 2024-12-31 13F THERMO FISHER SCIENTIFIC COM Put 3,500 -61.11 1,821 -67.31 n/a n/a n/a
2024-11-14 2024-09-30 13F THERMO FISHER SCIENTIFIC COM Put 9,000 -36.62 5,567 -29.10 n/a n/a n/a
2024-08-14 2024-06-30 13F THERMO FISHER SCIENTIFIC COM Put 14,200 102.86 7,853 93.02 n/a n/a n/a
2024-05-14 2024-03-31 13F THERMO FISHER SCIENTIFIC COM Put 7,000 18.64 4,068 29.93 n/a n/a n/a
2024-02-14 2023-12-31 13F THERMO FISHER SCIENTIFIC COM Put 5,900 -11.94 3,132 -7.67 n/a n/a n/a
2023-11-14 2023-09-30 13F THERMO FISHER SCIENTIFIC COM Put 6,700 509.09 3,391 491.80 n/a n/a n/a
2023-08-14 2023-06-30 13F THERMO FISHER SCIENTIFIC COM Put 1,100 574 n/a n/a n/a
2023-02-14 2022-12-31 13F THERMO FISHER SCIENTIFIC COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2023-01-18 2022-09-30 13F/A THERMO FISHER SCIENTIFIC COM Put 2,100 1,065 n/a n/a n/a
2022-11-14 2022-09-30 13F THERMO FISHER SCIENTIFIC COM Put 2,100 1,065 n/a n/a n/a
2022-08-30 2022-06-30 13F/A THERMO FISHER SCIENTIFIC COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2022-08-15 2022-06-30 13F THERMO FISHER SCIENTIFIC COM Put 0 0 n/a n/a n/a
2022-06-02 2022-03-31 13F/A THERMO FISHER SCIENTIFIC COM Put 4,500 4.65 2,658 -7.35 n/a n/a n/a
2022-05-13 2022-03-31 13F THERMO FISHER SCIENTIFIC COM Put 4,500 2,658 n/a n/a n/a
2022-05-03 2021-12-31 13F/A THERMO FISHER SCIENTIFIC COM Put 4,300 2,869 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.