Thermo Fisher Scientific Inc.
MX ˙ BMV ˙ US8835561023
SecurityMX:TMO / Thermo Fisher Scientific Inc.
InstitutionNomura Holdings Inc
Latest Disclosed Ownership1,274 shares
Latest Disclosed Value $ 626,209
Nomura Holdings Inc ownership in TMO / Thermo Fisher Scientific Inc.

On May 15, 2026 - Nomura Holdings Inc filed a 13F-HR form disclosing ownership of 1,274 shares of Thermo Fisher Scientific Inc. (MX:TMO) valued at $626,209 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 5,795 shares of Thermo Fisher Scientific Inc.. This represents a change in shares of -78.02% during the quarter.

Nomura Holdings Inc 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 0 of underlying shares valued at $0 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 1,274 -4,521 -78.02 626 -81.35 0.0017
2026-02-17 2025-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 5,795 -5,610 -49.19 3,358 -39.31 0.0045
2025-11-14 2025-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 11,405 8,412 281.06 5,532 355.98 0.0086
2025-08-18 2025-06-30 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 2,993 -10,783 -78.27 1,214 -82.30 0.0025
2025-08-14 2025-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 5,273 -8,503 2,138 0.0027
2025-05-15 2025-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 13,776 -1,651 -10.70 6,855 -14.59 0.0128
2025-02-14 2024-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 15,427 9,899 179.07 8,026 134.72 0.0108
2025-01-13 2024-09-30 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 5,528 -2,608 -32.06 3,419 -24.01 0.0078
2024-11-14 2024-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 5,528 -2,608 3,419 0.0057
2024-08-14 2024-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 8,136 3,103 61.65 4,499 53.81 0.0086
2024-05-15 2024-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 5,033 -23,236 -82.20 2,925 -80.51 0.0073
2024-03-27 2023-12-31 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 28,269 28,269 15,005 0.0407
2024-02-14 2023-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 28,269 28,269 15,005 0.0309
2023-11-14 2023-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 0 -18,361 -100.00 0 -100.00
2023-08-14 2023-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 18,361 17,668 2,549.49 9,580 2,300.75 0.0259
2023-05-15 2023-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 693 -19,393 -96.55 399 3,527.27 0.0013
2023-02-15 2022-12-31 13F/A-1 THERMO FISHER SCIENTIFIC CMN 883556102 20,086 20,086 11 0.0453
2022-11-15 2022-09-30 13F THERMO FISHER SCIENTIFIC CMN 883556102 0 -625 -100.00 0 -100.00
2022-08-17 2022-06-30 13F/A-1 THERMO FISHER SCIENTIFIC CMN 883556102 625 -12,115 -95.09 343 -95.46 0.0012
2022-08-15 2022-06-30 13F THERMO FISHER SCIENTIFIC CMN 883556102 625 -12,115 343 0.0010
2022-05-18 2022-03-31 13F THERMO FISHER SCIENTIFIC CMN 883556102 12,740 5,234 69.73 7,552 50.59 0.0226
2022-02-14 2021-12-31 13F THERMO FISHER SCIENTIFIC CMN 883556102 7,506 191 2.61 5,015 19.63 0.0127
2021-11-15 2021-09-30 13F THERMO FISHER SCIENTIFIC CMN 883556102 7,315 1,369 23.02 4,192 39.83 0.0104
2021-08-16 2021-06-30 13F THERMO FISHER SCIENTIFIC CMN 883556102 5,946 -740 -11.07 2,998 99,833.33 0.0076
2021-05-17 2021-03-31 13F THERMO FISHER SCIENTIFIC CMN 883556102 6,686 -55,886 -89.31 3 -89.66 0.0069
2021-02-16 2020-12-31 13F THERMO FISHER SCIENTIFIC CMN 883556102 62,572 -5,609 -8.23 29 -99.90 0.0487
2020-11-12 2020-09-30 13F THERMO FISHER SCIENTIFIC CMN 883556102 68,181 61,146 869.17 30,025 1,077.91 0.0658
2020-08-14 2020-06-30 13F THERMO FISHER SCIENTIFIC CMN 883556102 7,035 7,035 2,549 0.0089
2020-05-15 2020-03-31 13F/A-1 THERMO FISHER SCIENTIFIC CMN 883556102 0 -167,585 -100.00 0 -100.00
2020-02-14 2019-12-31 13F THERMO FISHER SCIENTIFIC CMN 883556102 167,585 135,709 425.74 54,425 493.25 0.2019
2019-11-14 2019-09-30 13F THERMO FISHER SCIENTIFIC CMN 883556102 31,876 -65,711 -67.34 9,174 -68.55 0.0349
2019-08-23 2019-06-30 13F/A-1 THERMO FISHER SCIENTIFIC CMN 883556102 97,587 72,710 292.28 29,173 324.52 0.1290
2019-08-14 2019-06-30 13F THERMO FISHER SCIENTIFIC CMN 883556102 97,587 72,710 29,173
2019-05-14 2019-03-31 13F THERMO FISHER SCIENTIFIC CMN 883556102 24,877 -27,084 -52.12 6,872 -40.81 0.0290
2019-02-14 2018-12-31 13F THERMO FISHER SCIENTIFIC CMN 883556102 51,961 22,585 76.88 11,611 59.01 0.0432
2018-11-14 2018-09-30 13F THERMO FISHER SCIENTIFIC CMN 883556102 29,376 -18,105 -38.13 7,302 -25.76 0.0256
2018-08-17 2018-06-30 13F/A-1 THERMO FISHER SCIENTIFIC CMN 883556102 47,481 -27,720 -36.86 9,836 -36.68 0.0313
2018-08-14 2018-06-30 13F THERMO FISHER SCIENTIFIC CMN 883556102 47,481 -27,720 7,652
2018-05-14 2018-03-31 13F/A-1 THERMO FISHER SCIENTIFIC CMN 883556102 75,201 3,810 5.34 15,533 14.51 0.0268
2018-05-14 2018-03-31 13F THERMO FISHER SCIENTIFIC CMN 883556102 146,592 29,098
2018-02-14 2017-12-31 13F THERMO FISHER SCIENTIFIC CMN 883556102 71,391 32,039 81.42 13,565 82.18 0.0241
2017-11-14 2017-09-30 13F THERMO FISHER SCIENTIFIC CMN 883556102 39,352 9,712 32.77 7,446 43.91 0.0157
2017-08-15 2017-06-30 13F THERMO FISHER SCIENTIFIC CMN 883556102 29,640 27,526 1,302.08 5,174 1,492.00 0.0127
2017-05-18 2017-03-31 13F/A-1 THERMO FISHER SCIENTIFIC CMN 883556102 2,114 -20,545 -90.67 325 -89.83 0.0008
2017-05-15 2017-03-31 13F THERMO FISHER SCIENTIFIC CMN 883556102 2,114 325
2017-02-13 2016-12-31 13F THERMO FISHER SCIENTIFIC CMN 883556102 22,659 22,659 0.00 3,197 0.0081
2016-09-02 2016-06-30 13F/A-1 THERMO FISHER SCIENTIFIC CMN 883556102 0 -3,411 -100.00 0 -100.00
2016-05-16 2016-03-31 13F THERMO FISHER SCIENTIFIC CMN 883556102 3,411 -65,730 -95.07 482 -95.08 0.0016
2016-02-12 2015-12-31 13F THERMO FISHER SCIENTIFIC CMN 883556102 69,141 65,486 1,791.68 9,792 2,100.45 0.0274
2015-11-16 2015-09-30 13F THERMO FISHER SCIENTIFIC CMN 883556102 3,655 -7,080 -65.95 445 -67.82 0.0016
2015-08-14 2015-06-30 13F THERMO FISHER SCIENTIFIC CMN 883556102 10,735 7,456 227.39 1,383 217.20 0.0039
2015-05-15 2015-03-31 13F THERMO FISHER SCIENTIFIC CMN 883556102 3,279 -32,990 -90.96 436 -90.37 0.0014
2015-02-17 2014-12-31 13F THERMO FISHER SCIENTIFIC CMN 883556102 36,269 32,085 766.85 4,526 790.94 0.0121
2014-11-14 2014-09-30 13F THERMO FISHER SCIENTIFIC CMN 883556102 4,184 1,435 52.20 508 56.79 0.0014
2014-08-13 2014-06-30 13F THERMO FISHER SCIENTIFIC CMN 883556102 2,749 -257,362 -98.94 324 -98.96 0.0001
2014-05-14 2014-03-31 13F THERMO FISHER SCIENTIFIC CMN 883556102 260,111 221,503 573.72 31,263 628.91 0.0096
2014-02-14 2013-12-31 13F THERMO FISHER SCIENTIFIC CMN 883556102 38,608 -21,923 -36.22 4,289 -23.12 0.0196
2013-11-14 2013-09-30 13F THERMO FISHER SCIENTIFIC CMN 883556102 60,531 25,894 74.76 5,579 89.89 0.0336
2013-08-15 2013-06-30 13F THERMO FISHER SCIENTIFIC CMN 883556102 34,637 -9,228 -21.04 2,938 -12.30 0.0239
2013-08-16 2013-03-31 13F/A-2 THERMO FISHER SCIENTIFIC CMN 883556102 43,865 12,171 38.40 3,350 65.43 0.0354
2013-08-16 2012-12-31 13F/A-1 THERMO FISHER SCIENTIFIC CMN 883556102 31,694 31,694 2,025 0.0225
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
(%)
2023-11-14 2023-09-30 13F THERMO FISHER SCIENTIFIC COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2023-08-14 2023-06-30 13F THERMO FISHER SCIENTIFIC COM Call 7,500 3,913 n/a n/a n/a
2022-08-17 2022-06-30 13F/A THERMO FISHER SCIENTIFIC CMN Call 0 -100.00 0 -100.00 n/a n/a n/a
2022-08-15 2022-06-30 13F THERMO FISHER SCIENTIFIC CMN Call 0 0 n/a n/a n/a
2022-05-18 2022-03-31 13F THERMO FISHER SCIENTIFIC CMN Call 2,700 1,601 n/a n/a n/a
2016-05-16 2016-03-31 13F THERMO FISHER SCIENTIFIC CMN Call 0 -100.00 0 -100.00 n/a n/a n/a
2016-02-12 2015-12-31 13F THERMO FISHER SCIENTIFIC CMN Call 116,700 16,526 n/a n/a n/a
2015-05-15 2015-03-31 13F THERMO FISHER SCIENTIFIC CMN Call 0 -100.00 0 -100.00 n/a n/a n/a
2015-02-17 2014-12-31 13F THERMO FISHER SCIENTIFIC CMN Call 27,100 158.10 3,382 165.25 n/a n/a n/a
2014-11-14 2014-09-30 13F THERMO FISHER SCIENTIFIC CMN Call 10,500 556.25 1,275 574.60 n/a n/a n/a
2014-08-13 2014-06-30 13F THERMO FISHER SCIENTIFIC CMN Call 1,600 -98.65 189 -98.68 n/a n/a n/a
2014-05-14 2014-03-31 13F THERMO FISHER SCIENTIFIC CMN Call 118,700 14,267 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
(%)
2022-05-17 2022-03-31 13F THERMO FISHER SCIENTIFIC CMN Put 0 -100.00 0 -100.00 n/a n/a n/a
2022-02-14 2021-12-31 13F THERMO FISHER SCIENTIFIC CMN Put 300 0.00 200 16.28 n/a n/a n/a
2021-11-15 2021-09-30 13F THERMO FISHER SCIENTIFIC CMN Put 300 0.00 172 13.91 n/a n/a n/a
2021-08-16 2021-06-30 13F THERMO FISHER SCIENTIFIC CMN Put 300 0.00 151 n/a n/a n/a
2021-05-17 2021-03-31 13F THERMO FISHER SCIENTIFIC CMN Put 300 0 n/a n/a n/a
2016-05-16 2016-03-31 13F THERMO FISHER SCIENTIFIC CMN Put 0 -100.00 0 -100.00 n/a n/a n/a
2016-02-12 2015-12-31 13F THERMO FISHER SCIENTIFIC CMN Put 74,000 10,479 n/a n/a n/a
2015-05-15 2015-03-31 13F THERMO FISHER SCIENTIFIC CMN Put 0 -100.00 0 -100.00 n/a n/a n/a
2015-02-17 2014-12-31 13F THERMO FISHER SCIENTIFIC CMN Put 31,300 130.15 3,906 136.58 n/a n/a n/a
2014-11-14 2014-09-30 13F THERMO FISHER SCIENTIFIC CMN Put 13,600 946.15 1,651 979.08 n/a n/a n/a
2014-08-13 2014-06-30 13F THERMO FISHER SCIENTIFIC CMN Put 1,300 153 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.