Thermo Fisher Scientific Inc.
MX ˙ BMV ˙ US8835561023
SecurityMX:TMO / Thermo Fisher Scientific Inc.
InstitutionDeutsche Bank Ag\
Latest Disclosed Ownership1,260,345 shares
Latest Disclosed Value $ 619,497,378
Deutsche Bank Ag\ ownership in TMO / Thermo Fisher Scientific Inc.

On May 6, 2026 - Deutsche Bank Ag\ filed a 13F-HR form disclosing ownership of 1,260,345 shares of Thermo Fisher Scientific Inc. (MX:TMO) valued at $619,497,378 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 1,247,636 shares of Thermo Fisher Scientific Inc.. This represents a change in shares of 1.02% during the quarter.

Deutsche Bank Ag\ 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)
2026-05-06 2026-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,260,345 12,709 1.02 619,497 -14.31 0.0399
2026-02-11 2025-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,247,636 41,709 3.46 722,943 23.60 0.2354
2025-11-13 2025-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,205,927 -107,673 -8.20 584,899 9.82 0.1960
2025-08-12 2025-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,313,600 50,010 3.96 532,612 -15.29 0.1961
2025-05-09 2025-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,263,590 -58,043 -4.39 628,762 -8.55 0.2492
2025-06-30 2024-12-31 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 1,321,633 114,277 9.47 687,553 -7.94 0.2692
2025-02-14 2024-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,321,633 114,277 687,553 0.2683
2025-06-26 2024-09-30 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 1,207,356 -25,761 -2.09 746,834 9.52 0.3040
2024-11-13 2024-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,207,356 -25,761 746,834 0.3040
2025-06-12 2024-06-30 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 1,233,117 14,356 1.18 681,914 -3.73 0.3077
2024-08-14 2024-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,233,117 14,356 681,914 0.3077
2025-06-02 2024-03-31 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 1,218,761 -95,891 -7.29 708,356 1.51 0.3288
2024-05-15 2024-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,218,761 -95,891 708,356 0.3288
2024-02-14 2023-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,314,652 184,812 16.36 697,804 22.02 0.3560
2023-11-24 2023-09-30 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 1,129,840 -274,021 -19.52 571,891 -21.92 0.3693
2023-11-09 2023-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,129,840 -274,021 571,891 0.0753
2023-08-14 2023-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,403,861 -96,164 -6.41 732,464 -15.28 0.3894
2023-05-15 2023-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,500,025 -109,329 -6.79 864,569 -2.45 0.4814
2023-02-13 2022-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,609,354 94,350 6.23 886,255 15.34 0.5100
2022-11-14 2022-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,515,004 -132,148 -8.02 768,393 -14.13 0.4638
2022-08-11 2022-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,647,152 -177,002 -9.70 894,866 -16.94 0.4994
2022-05-13 2022-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,824,154 196,620 12.08 1,077,437 -0.78 0.5026
2022-02-16 2021-12-31 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 1,627,534 -66,502 -3.93 1,085,955 12.20 0.4883
2022-02-11 2021-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,627,534 -66,502 1,085,955 0.4871
2021-11-04 2021-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,694,036 110,066 6.95 967,853 21.12 0.4592
2021-08-11 2021-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,583,970 153,931 10.76 799,067 22.44 0.3881
2021-05-13 2021-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,430,039 132,355 10.20 652,641 7.98 0.3515
2021-02-16 2020-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,297,684 64,567 5.24 604,435 11.02 0.3690
2020-11-12 2020-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,233,117 4,378 0.36 544,448 22.29 0.3745
2020-08-13 2020-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,228,739 126 0.01 445,223 27.78 0.3384
2020-05-14 2020-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,228,613 -154,122 -11.15 348,434 -22.43 0.3111
2020-02-14 2019-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,382,735 1,108 0.08 449,201 11.63 0.2927
2019-11-14 2019-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,381,627 -122,757 -8.16 402,419 -8.91 0.2794
2019-08-14 2019-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,504,384 116,995 8.43 441,800 16.34 0.2593
2019-05-15 2019-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,387,389 20,638 1.51 379,747 24.16 0.2261
2019-04-01 2018-12-31 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 1,366,751 -455,841 -25.01 305,857 -31.25 0.2169
2019-02-14 2018-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,366,751 104,236 305,857
2021-12-21 2018-09-30 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 1,822,592 -92,306 -4.82 444,859 12.15 0.2250
2018-11-14 2018-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,262,515 -652,383 308,147 0.2129
2020-04-21 2018-06-30 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 1,914,898 -1,406,202 -42.34 396,653 -42.15 0.1975
2018-08-14 2018-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,552,869 -1,768,231 321,652 213,640.4568
2019-10-23 2018-03-31 13F/A-2 THERMO FISHER SCIENTIFIC COM 883556102 3,321,100 1,455,384 78.01 685,665 93.55 0.3272
2019-10-18 2018-03-31 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 3,321,100 0 685,665 0.3272
2018-05-15 2018-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 2,337,431 471,715 482,577
2018-02-14 2017-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 1,865,716 -11,941 -0.64 354,255 -0.28 0.2269
2017-11-14 2017-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,877,657 -96,964 -4.91 355,246 3.12 0.2434
2017-08-11 2017-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 1,974,621 -1,054,364 -34.81 344,506 -25.95 0.2459
2017-05-15 2017-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 3,028,985 80,643 2.74 465,244 11.84 0.3436
2017-02-14 2016-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 2,948,342 -71,031 -2.35 416,004 -13.38 0.3345
2016-11-14 2016-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 3,019,373 202,813 7.20 480,256 15.40 0.3400
2016-08-15 2016-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 2,816,560 351 0.01 416,167 4.37 0.2939
2016-05-16 2016-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 2,816,209 -562,475 -16.65 398,737 -16.80 0.3004
2016-02-16 2015-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 3,378,684 613,880 22.20 479,258 41.76 0.3316
2015-11-17 2015-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 2,764,804 93,131 3.49 338,073 -2.48 0.2613
2015-08-12 2015-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 2,671,673 96,152 3.73 346,668 0.20 0.2213
2015-05-15 2015-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 2,575,521 323,942 14.39 345,988 22.65 0.2152
2015-02-13 2014-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 2,251,579 59,822 2.73 282,093 5.76 0.1740
2014-11-14 2014-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 2,191,757 109,905 5.28 266,728 8.58 0.1656
2014-08-15 2014-06-30 13F THERMO FISHER SCIENTIFIC COM 883556102 2,081,852 -28,116 -1.33 245,652 -3.17 0.1669
2014-05-15 2014-03-31 13F THERMO FISHER SCIENTIFIC COM 883556102 2,109,968 -162,524 -7.15 253,693 0.26 0.1802
2014-02-24 2013-12-31 13F/A-1 THERMO FISHER SCIENTIFIC COM 883556102 2,272,492 198,732 9.58 253,032 32.42 0.1819
2014-02-18 2013-12-31 13F THERMO FISHER SCIENTIFIC COM 883556102 2,272,492 253,032
2013-11-18 2013-09-30 13F THERMO FISHER SCIENTIFIC COM 883556102 2,073,760 -79,604 -3.70 191,089 4.86 0.1410
2013-08-16 2013-06-30 13F THERMO FISHER SCIENTIFIC COM 088355610 2,153,364 2,153,364 182,230 0.1494
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
(%)
2020-02-14 2019-12-31 13F THERMO FISHER SCIENTIFIC COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2019-11-14 2019-09-30 13F THERMO FISHER SCIENTIFIC COM Call 10 2 n/a n/a n/a
2019-08-14 2019-06-30 13F THERMO FISHER SCIENTIFIC COM Call 0 -100.00 0 n/a n/a n/a
2019-05-15 2019-03-31 13F THERMO FISHER SCIENTIFIC COM Call 1 -95.65 0 -100.00 n/a n/a n/a
2019-04-01 2018-12-31 13F/A THERMO FISHER SCIENTIFIC COM Call 23 4.55 5 0.00 n/a n/a n/a
2019-02-14 2018-12-31 13F THERMO FISHER SCIENTIFIC COM Call 23 5 n/a n/a n/a
2021-12-21 2018-09-30 13F/A THERMO FISHER SCIENTIFIC COM Call 22 0.00 5 0.00 n/a n/a n/a
2018-11-14 2018-09-30 13F THERMO FISHER SCIENTIFIC COM Call 22 5 n/a n/a n/a
2020-04-21 2018-06-30 13F/A THERMO FISHER SCIENTIFIC COM Call 22 0.00 5 25.00 n/a n/a n/a
2018-08-14 2018-06-30 13F THERMO FISHER SCIENTIFIC COM Call 22 4 n/a n/a n/a
2019-10-18 2018-03-31 13F/A THERMO FISHER SCIENTIFIC COM Call 22 4 n/a n/a n/a
2019-10-23 2018-03-31 13F/A THERMO FISHER SCIENTIFIC COM Call 22 -90.91 4 -91.11 n/a n/a n/a
2018-05-15 2018-03-31 13F THERMO FISHER SCIENTIFIC COM Call 22 4 n/a n/a n/a
2018-02-14 2017-12-31 13F THERMO FISHER SCIENTIFIC COM Call 242 0.00 45 0.00 n/a n/a n/a
2017-11-14 2017-09-30 13F THERMO FISHER SCIENTIFIC COM Call 242 10.00 45 21.62 n/a n/a n/a
2017-08-11 2017-06-30 13F THERMO FISHER SCIENTIFIC COM Call 220 37 n/a n/a n/a
2017-05-15 2017-03-31 13F THERMO FISHER SCIENTIFIC COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2017-02-14 2016-12-31 13F THERMO FISHER SCIENTIFIC COM Call 150 200.00 21 200.00 n/a n/a n/a
2016-11-14 2016-09-30 13F THERMO FISHER SCIENTIFIC COM Call 50 0.00 7 0.00 n/a n/a n/a
2016-08-15 2016-06-30 13F THERMO FISHER SCIENTIFIC COM Call 50 0.00 7 0.00 n/a n/a n/a
2016-05-16 2016-03-31 13F THERMO FISHER SCIENTIFIC COM Call 50 7 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
(%)
2017-05-15 2017-03-31 13F THERMO FISHER SCIENTIFIC COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2017-02-14 2016-12-31 13F THERMO FISHER SCIENTIFIC COM Put 1,200 -62.86 169 -67.06 n/a n/a n/a
2016-11-14 2016-09-30 13F THERMO FISHER SCIENTIFIC COM Put 3,231 96.65 513 111.98 n/a n/a n/a
2016-08-15 2016-06-30 13F THERMO FISHER SCIENTIFIC COM Put 1,643 93.98 242 103.36 n/a n/a n/a
2016-05-16 2016-03-31 13F THERMO FISHER SCIENTIFIC COM Put 847 747.00 119 750.00 n/a n/a n/a
2016-02-16 2015-12-31 13F THERMO FISHER SCIENTIFIC COM Put 100 14 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.