Thermo Fisher Scientific Inc.
MX ˙ BMV ˙ US8835561023
SecurityMX:TMO / Thermo Fisher Scientific Inc.
InstitutionWolverine Asset Management Llc
Latest Disclosed Ownership823 shares
Latest Disclosed Value $ 404,529
Wolverine Asset Management Llc ownership in TMO / Thermo Fisher Scientific Inc.

On May 4, 2026 - Wolverine Asset Management Llc filed a 13F-HR form disclosing ownership of 823 shares of Thermo Fisher Scientific Inc. (MX:TMO) valued at $404,529 USD as of March 31, 2026. The entity filed a previous 13F-HR on October 28, 2025 disclosing 0 shares of Thermo Fisher Scientific Inc..

Wolverine Asset 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 3,500 of underlying shares valued at $1,720,355 USD and put options representing 1,900 of underlying shares valued at $933,907 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)
2026-05-04 2026-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 823 823 405 0.0039
2025-10-28 2025-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 0 -6,601 -100.00 0 -100.00
2025-08-04 2025-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 6,601 4,700 247.24 2,676 183.17 0.0248
2025-05-12 2025-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,901 -8,912 -82.42 946 -83.20 0.0113
2025-02-03 2024-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 10,813 3,947 57.49 5,625 32.45 0.0563
2024-11-04 2024-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 6,866 -12,178 -63.95 4,247 -59.67 0.0458
2024-08-01 2024-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 19,044 19,044 10,531 0.1191
2024-05-13 2024-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 0 -829 -100.00 0 -100.00
2024-02-01 2023-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 829 -5,057 -85.92 440 -85.23 0.0038
2023-11-13 2023-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 5,886 5,886 2,979 0.0334
2021-08-13 2021-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 0 -1,308 -100.00 0 -100.00
2021-05-13 2021-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,308 1,308 596 0.0050
2020-05-13 2020-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 0 -310 -100.00 0 -100.00
2020-02-14 2019-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 310 -724 -70.02 100 -66.78 0.0012
2019-11-14 2019-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,034 1,034 301 0.0038
2016-05-16 2016-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 0 -7,747 -100.00 0 -100.00
2016-02-12 2015-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 7,747 2,500 47.65 1,098 71.29 0.0236
2015-11-17 2015-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 5,247 0 0.00 641 -5.74 0.0151
2015-08-14 2015-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 5,247 -2,600 -33.13 680 -35.48 0.0154
2015-05-15 2015-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 7,847 7,847 0.00 1,054 0.0210
2015-02-12 2014-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 0 -3,175 -100.00 0 -100.00
2014-11-13 2014-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 3,175 -3,509 -52.50 386 -51.02 0.0081
2014-08-13 2014-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 6,684 6,344 1,865.88 788 1,870.00 0.0173
2014-05-14 2014-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 340 340 40 0.0009
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
(%)
2026-05-04 2026-03-31 13F THERMO FISHER SCIENTIFIC COM Call 3,500 -10.26 1,720 -23.86 n/a n/a n/a
2026-02-02 2025-12-31 13F THERMO FISHER SCIENTIFIC COM Call 3,900 34.48 2,260 60.67 n/a n/a n/a
2025-10-28 2025-09-30 13F THERMO FISHER SCIENTIFIC COM Call 2,900 -48.21 1,407 -38.06 n/a n/a n/a
2025-08-04 2025-06-30 13F THERMO FISHER SCIENTIFIC COM Call 5,600 180.00 2,271 128.14 n/a n/a n/a
2025-05-12 2025-03-31 13F THERMO FISHER SCIENTIFIC COM Call 2,000 -78.26 995 -79.21 n/a n/a n/a
2025-02-03 2024-12-31 13F THERMO FISHER SCIENTIFIC COM Call 9,200 -14.02 4,786 -27.68 n/a n/a n/a
2024-11-04 2024-09-30 13F THERMO FISHER SCIENTIFIC COM Call 10,700 -53.28 6,619 -47.74 n/a n/a n/a
2024-08-01 2024-06-30 13F THERMO FISHER SCIENTIFIC COM Call 22,900 11.71 12,664 6.29 n/a n/a n/a
2024-05-13 2024-03-31 13F THERMO FISHER SCIENTIFIC COM Call 20,500 -42.42 11,915 -36.95 n/a n/a n/a
2024-02-01 2023-12-31 13F THERMO FISHER SCIENTIFIC COM Call 35,600 43.55 18,896 50.53 n/a n/a n/a
2023-11-13 2023-09-30 13F THERMO FISHER SCIENTIFIC COM Call 24,800 12.22 12,553 8.87 n/a n/a n/a
2023-08-07 2023-06-30 13F THERMO FISHER SCIENTIFIC COM Call 22,100 -69.77 11,531 -72.63 n/a n/a n/a
2023-05-08 2023-03-31 13F THERMO FISHER SCIENTIFIC COM Call 73,100 47.68 42,133 54.56 n/a n/a n/a
2023-02-01 2022-12-31 13F THERMO FISHER SCIENTIFIC COM Call 49,500 800.00 27,259 877.38 n/a n/a n/a
2022-11-10 2022-09-30 13F THERMO FISHER SCIENTIFIC COM Call 5,500 2,789 n/a n/a n/a
2016-05-16 2016-03-31 13F THERMO FISHER SCIENTIFIC COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2016-02-12 2015-12-31 13F THERMO FISHER SCIENTIFIC COM Call 147 0.00 61 281.25 n/a n/a n/a
2015-11-17 2015-09-30 13F THERMO FISHER SCIENTIFIC COM Call 147 0.00 16 -69.81 n/a n/a n/a
2015-08-14 2015-06-30 13F THERMO FISHER SCIENTIFIC COM Call 147 47.00 53 26.19 n/a n/a n/a
2015-05-15 2015-03-31 13F THERMO FISHER SCIENTIFIC COM Call 100 -82.79 42 -67.19 n/a n/a n/a
2015-02-12 2014-12-31 13F THERMO FISHER SCIENTIFIC COM Call 581 -25.03 128 -20.00 n/a n/a n/a
2014-11-13 2014-09-30 13F THERMO FISHER SCIENTIFIC COM Call 775 -1.65 160 -12.09 n/a n/a n/a
2014-08-13 2014-06-30 13F THERMO FISHER SCIENTIFIC COM Call 788 175.52 182 121.95 n/a n/a n/a
2014-05-14 2014-03-31 13F THERMO FISHER SCIENTIFIC COM Call 286 460.78 82 -33.87 n/a n/a n/a
2014-02-14 2013-12-31 13F THERMO FISHER SCIENTIFIC COM Call 51 -52.34 124 22.77 n/a n/a n/a
2013-11-13 2013-09-30 13F THERMO FISHER SCIENTIFIC COM Call 107 -18.94 101 62.90 n/a n/a n/a
2013-08-01 2013-06-30 13F THERMO FISHER SCIENTIFIC COM Call 132 62 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
(%)
2026-05-04 2026-03-31 13F THERMO FISHER SCIENTIFIC COM Put 1,900 -51.28 934 -58.70 n/a n/a n/a
2026-02-02 2025-12-31 13F THERMO FISHER SCIENTIFIC COM Put 3,900 -51.25 2,260 -41.78 n/a n/a n/a
2025-10-28 2025-09-30 13F THERMO FISHER SCIENTIFIC COM Put 8,000 -54.02 3,880 -45.00 n/a n/a n/a
2025-08-04 2025-06-30 13F THERMO FISHER SCIENTIFIC COM Put 17,400 324.39 7,055 245.83 n/a n/a n/a
2025-05-12 2025-03-31 13F THERMO FISHER SCIENTIFIC COM Put 4,100 -90.26 2,040 -90.69 n/a n/a n/a
2025-02-03 2024-12-31 13F THERMO FISHER SCIENTIFIC COM Put 42,100 -37.91 21,902 -47.78 n/a n/a n/a
2024-11-04 2024-09-30 13F THERMO FISHER SCIENTIFIC COM Put 67,800 -7.25 41,939 3.75 n/a n/a n/a
2024-08-01 2024-06-30 13F THERMO FISHER SCIENTIFIC COM Put 73,100 208.44 40,424 193.48 n/a n/a n/a
2024-05-13 2024-03-31 13F THERMO FISHER SCIENTIFIC COM Put 23,700 -46.14 13,775 -41.02 n/a n/a n/a
2024-02-01 2023-12-31 13F THERMO FISHER SCIENTIFIC COM Put 44,000 110.53 23,355 120.78 n/a n/a n/a
2023-11-13 2023-09-30 13F THERMO FISHER SCIENTIFIC COM Put 20,900 129.67 10,579 122.84 n/a n/a n/a
2023-08-07 2023-06-30 13F THERMO FISHER SCIENTIFIC COM Put 9,100 -31.58 4,748 -38.07 n/a n/a n/a
2023-05-08 2023-03-31 13F THERMO FISHER SCIENTIFIC COM Put 13,300 33.00 7,666 39.21 n/a n/a n/a
2023-02-01 2022-12-31 13F THERMO FISHER SCIENTIFIC COM Put 10,000 525.00 5,507 578.91 n/a n/a n/a
2022-11-10 2022-09-30 13F THERMO FISHER SCIENTIFIC COM Put 1,600 811 n/a n/a n/a
2016-05-16 2016-03-31 13F THERMO FISHER SCIENTIFIC COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2016-02-12 2015-12-31 13F THERMO FISHER SCIENTIFIC COM Put 239 71.94 70 -56.25 n/a n/a n/a
2015-11-17 2015-09-30 13F THERMO FISHER SCIENTIFIC COM Put 139 0.00 160 28.00 n/a n/a n/a
2015-08-14 2015-06-30 13F THERMO FISHER SCIENTIFIC COM Put 139 0.00 125 4.17 n/a n/a n/a
2015-05-15 2015-03-31 13F THERMO FISHER SCIENTIFIC COM Put 139 -2.80 120 242.86 n/a n/a n/a
2015-02-12 2014-12-31 13F THERMO FISHER SCIENTIFIC COM Put 143 110.29 35 337.50 n/a n/a n/a
2014-11-13 2014-09-30 13F THERMO FISHER SCIENTIFIC COM Put 68 -5.56 8 -68.00 n/a n/a n/a
2014-08-13 2014-06-30 13F THERMO FISHER SCIENTIFIC COM Put 72 35.85 25 13.64 n/a n/a n/a
2014-05-14 2014-03-31 13F THERMO FISHER SCIENTIFIC COM Put 53 103.85 22 1,000.00 n/a n/a n/a
2014-02-14 2013-12-31 13F THERMO FISHER SCIENTIFIC COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2013-11-13 2013-09-30 13F THERMO FISHER SCIENTIFIC COM Put 26 -48.00 2 -89.47 n/a n/a n/a
2013-08-01 2013-06-30 13F THERMO FISHER SCIENTIFIC COM Put 50 19 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.