Today, Vaisala’s list of largest shareholders has been updated again. Link: https://tools.euroland.com/majorshareholder/sf-vai/?showexternal=1&page=majors&view=msb&lang=1&date=2025-06-30
No major changes on the list. The number of shares in SEB’s, OP’s, and Evli’s small-cap funds has increased, and Ålandsbanken’s small-cap fund’s shareholding is decreasing.
For the past three months, the combined ownership of nominee-registered and non-Finnish owners has been in a significant decline. The three-month decline ended this June, and ownership turned to a small increase of +0.38%.
When reading shareholder lists, it is naturally unknown whether shares are in share lending. Nominee-registered owners, fund portfolio managers, and others tend to lend out their shares when the opportunity arises, which makes it appear on shareholder lists as if the shares are being traded. Even the aforementioned changes in funds could very well be share lending and returns of borrowed shares, and no actual share trades have been made.
In any case, Vaisala’s share price turned downwards in February 2025 from the 54 euro level, and at the beginning of April, the price reached the 40 euro level. At the same time, according to the ownership statistics, the combined ownership of nominee-registered and non-Finnish owners decreased by 10.9% (over 969,000 shares).
Below the summary link is a list of monthly statistics for nominee-registered and non-Finnish owners from 2019-2025.
Summary
Vaisala Oyj - Nominee-registered and non-Finnish ownership
Vaisala’s foreign ownership development can be monitored on Vaisala’s website from the sector table of the shareholder list under nominee-registered and non-Finnish shareholders. The same figure can also be found in Euroclear’s monthly foreign ownership tracking table, which is also published on the first days of each month.
| Date |
Amount |
% |
Change (pcs) |
Change (%) |
| 31.12.2018 |
5 718 980 |
15,70 % |
-39 831 |
-0,69 % |
| 31.1.2019 |
5 616 603 |
15,42 % |
-102 377 |
-1,79 % |
| 28.2.2019 |
5 546 957 |
15,22 % |
-69 646 |
-1,24 % |
| 31.3.2019 |
5 564 473 |
15,27 % |
+17 516 |
+0,32 % |
| 30.4.2019 |
5 590 074 |
15,34 % |
+25 601 |
+0,46 % |
| 31.5.2019 |
5 644 259 |
15,49 % |
+54 185 |
+0,97 % |
| 30.6.2019 |
5 637 544 |
15,47 % |
-6 715 |
-0,12 % |
| 31.7.2019 |
5 644 297 |
15,49 % |
+6 753 |
+0,12 % |
| 31.8.2019 |
5 640 471 |
15,48 % |
-3 826 |
-0,07 % |
| 30.9.2019 |
5 703 893 |
15,65 % |
+63 422 |
+1,12 % |
| 31.10.2019 |
5 736 244 |
15,74 % |
+32 351 |
+0,57 % |
| 30.11.2019 |
6 032 044 |
16,56 % |
+295 800 |
+5,16 % |
| 31.12.2019 |
6 387 474 |
17,53 % |
+355 430 |
+5,89 % |
| 31.1.2020 |
6 406 030 |
17,58 % |
+18 556 |
+0,29 % |
| 29.2.2020 |
6 421 480 |
17,62 % |
+15 450 |
+0,24 % |
| 31.3.2020 |
6 379 623 |
17,51 % |
-41 857 |
-0,65 % |
| 30.4.2020 |
6 367 550 |
17,48 % |
-12 073 |
-0,19 % |
| 31.5.2020 |
6 417 282 |
17,61 % |
+49 732 |
+0,78 % |
| 30.6.2020 |
6 443 643 |
17,69 % |
+26 361 |
+0,41 % |
| 31.7.2020 |
6 592 409 |
18,09 % |
+148 766 |
+2,31 % |
| 31.8.2020 |
6 653 515 |
18,26 % |
+61 106 |
+0,93 % |
| 30.9.2020 |
6 665 796 |
18,29 % |
+12 281 |
+0,18 % |
| 31.10.2020 |
6 968 264 |
19,12 % |
+302 468 |
+4,54 % |
| 31.11.2020 |
6 981 994 |
19,16 % |
+13 730 |
+0,20 % |
| 31.12.2020 |
7 023 294 |
19,28 % |
+41 300 |
+0,59 % |
| 31.1.2021 |
7 101 128 |
19,49 % |
+77 834 |
+1,11 % |
| 28.2.2021 |
7 072 574 |
19,41 % |
-28 554 |
-0,40 % |
| 31.3.2021 |
6 942 967 |
19,06 % |
-129 607 |
-1,83 % |
| 30.4.2021 |
6 938 845 |
19,04 % |
-4 122 |
-0,06 % |
| 31.5.2021 |
6 960 269 |
19,10 % |
+21 424 |
+0,31 % |
| 30.6.2021 |
6 972 710 |
19,14 % |
+12 441 |
+0,18 % |
| 31.7.2021 |
6 984 029 |
19,17 % |
+11 319 |
+0,16 % |
| 31.8.2021 |
6 997 435 |
19,21 % |
+13 406 |
+0,19 % |
| 30.9.2021 |
7 085 568 |
19,45 % |
+88 133 |
+1,26 % |
| 31.10.2021 |
7 144 291 |
19,61 % |
+58 723 |
+0,83 % |
| 30.11.2021 |
7 264 123 |
19,94 % |
+119 832 |
+1,68 % |
| 31.12.2021 |
7 344 011 |
20,16 % |
+79 888 |
+1,10 % |
| 31.1.2022 |
7 554 522 |
20,73 % |
+210 511 |
+2,87 % |
| 28.2.2022 |
7 545 002 |
20,71 % |
-9 520 |
-0,13 % |
| 31.3.2022 |
7 534 597 |
20,68 % |
-10 405 |
-0,14 % |
| 30.4.2022 |
7 499 496 |
20,58 % |
-35 101 |
-0,47 % |
| 31.5.2022 |
7 672 787 |
21,06 % |
+173 291 |
+2,31 % |
| 30.6.2022 |
7 666 295 |
21,04 % |
-6 492 |
-0,08 % |
| 31.7.2022 |
7 676 786 |
21,07 % |
+10 491 |
+0,14 % |
| 31.8.2022 |
7 696 810 |
21,12 % |
+20 024 |
+0,26 % |
| 30.9.2022 |
7 676 005 |
21,07 % |
-20 805 |
-0,27 % |
| 31.10.2022 |
7 668 293 |
21,05 % |
-7 712 |
-0,10 % |
| 30.11.2022 |
7 626 106 |
20,93 % |
-42 187 |
-0,55 % |
| 31.12.2022 |
7 747 078 |
21,26 % |
+120 972 |
+1,59 % |
| 31.1.2023 |
7 756 679 |
21,29 % |
+9 601 |
+0,12 % |
| 28.2.2023 |
7 755 711 |
21,29 % |
-968 |
-0,01 % |
| 31.3.2023 |
7 767 473 |
21,32 % |
+11 762 |
+0,15 % |
| 30.4.2023 |
8 055 021 |
22,11 % |
+287 548 |
+3,70 % |
| 31.5.2023 |
8 069 224 |
22,15 % |
+14 203 |
+0,18 % |
| 30.6.2023 |
8 228 654 |
22,58 % |
+159 430 |
+1,98 % |
| 31.7.2023 |
8 106 622 |
22,25 % |
-122 032 |
-1,48 % |
| 31.8.2023 |
7 938 044 |
21,79 % |
-168 578 |
-2,08 % |
| 30.9.2023 |
7 906 510 |
21,70 % |
-31 534 |
-0,40 % |
| 30.10.2023 |
7 853 567 |
21,55 % |
-52 943 |
-0,67 % |
| 30.11.2023 |
7 858 842 |
21,57 % |
+5 275 |
+0,07 % |
| 31.12.2023 |
7 862 005 |
21,58 % |
+3 163 |
+0,04 % |
| 31.1.2024 |
7 880 127 |
21,63 % |
+18 122 |
+0,23 % |
| 29.2.2024 |
7 855 642 |
21,56 % |
-24 485 |
-0,31 % |
| 31.3.2024 |
7 798 709 |
21,40 % |
-56 933 |
-0,72 % |
| 30.4.2024 |
7 751 169 |
21,27 % |
-47 540 |
-0,61 % |
| 31.5.2024 |
7 748 173 |
21,26 % |
-2 996 |
-0,04 % |
| 30.6.2024 |
7 895 800 |
21,67 % |
+147 627 |
+1,91 % |
| 31.7.2024 |
7 928 447 |
21,76 % |
+32 647 |
+0,41 % |
| 31.8.2024 |
8 222 872 |
22,57 % |
+294 425 |
+3,71 % |
| 30.9.2024 |
8 458 642 |
23,21 % |
+235 770 |
+2,87 % |
| 31.10.2024 |
8 565 506 |
23,51 % |
+106 864 |
+1,26 % |
| 31.11.2024 |
8 631 532 |
23,69 % |
+66 026 |
+0,77 % |
| 31.12.2024 |
8 709 942 |
23,90 % |
+78 410 |
+0,91 % |
| 31.1.2025 |
8 833 958 |
24,25 % |
+124 016 |
+1,42 % |
| 28.2.2025 |
8 872 815 |
24,35 % |
+38 857 |
+0,44 % |
| 31.3.2025 |
7 903 126 |
21,69 % |
-969 689 |
-10,93 % |
| 31.4.2025 |
7 784 534 |
21,36 % |
-118 592 |
-1,50 % |
| 31.5.2025 |
7 772 003 |
21,33 % |
-12 531 |
-0,16 % |
| 30.6.2025 |
7 801 694 |
21,41 % |
+29 691 |
+0,38 % |
From the 2019-2025 list, three longer-lasting periods of ownership increase stand out, during which the ownership of non-Finnish and nominee-registered owners grew continuously on a monthly basis. The first growth period was after the corona crash, the second in 2021, and the third growth period from June 2024 to February 2025.
- 10-month growth period (April 2021 - January 2022): ownership grew by 1.6% (600,000 shares)
- 9-month growth period (June 2024 - February 2025): ownership grew by 3.09% (1,100,000 shares)
- 9-month growth period (May 2020 - January 2021): ownership grew by 2.0% (730,000 shares)
In March 2025, there was a larger decline in the ownership of nominee-registered and non-Finnish owners, when Trump’s tariff talks caused concerns in the markets. That March decline in foreign ownership was the largest measured during this decade. Previous large declines were experienced in August 2023 and March 2021.
- March 2025: -10.93%
- August 2023: -2.08%
- March 2021: -1.83%
The decline in ownership that began in March continued for three months. The increase experienced in the second half of 2024 was followed by an almost equally large decrease, which was exactly -3.02% (1,100,812 shares). Vaisala’s share price already turned upwards at the end of April. Now, foreign ownership is again at the levels of early 2024, at 21.4 percent, but the share price is 10 euros higher than at the beginning of 2024.
Here are Euroclear’s statistics for the past 15 years. The 21 percent level has become a floor in recent years. The level below 20 percent was exceeded in November 2021.

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Changes have also occurred regarding other owners.
In May 2024, Vaisala’s major shareholders converted their shares into A-series shares, increasing the number of A-series shares by 3 million and decreasing the number of K-series shares by 3 million. In this context, the Finnish Academy of Science and Letters converted all its K-shares into A-shares. Inderes’ comment on the topic: https://www.inderes.fi/analyst-comments/vaisalan-suuromistajat-konvertoivat-osakkeitaan
After that conversion, the Finnish Academy of Science and Letters held 1.8 million A-shares, but currently it holds less than 700,000 A-shares. Thus, its ownership has decreased significantly, and the academy has fallen to position 12 on the shareholder list.At the same time, over a 1.5-year period (January 2024-May 2025), household ownership has remained at the same level, even though, according to Euroclear statistics, the number of Vaisala owners has grown by over 2,000 shareholders. Some of them skillfully timed their purchases during the April price dip.
-
Household ownership:
- 31.1.2024: 40.44 %
- 30.6.2024: 40.50 %
- 31.1.2025: 40.17 %
- 30.6.2025: 40.48 %
-
Number of shareholders
- 31.1.2024 owners 15,253
- 31.12.2024 owners 15,666
- 31.1.2025 owners 15,777 (+111)
- 31.2.2025 owners 16,199 (+422)
- 31.3.2025 owners 16,725 (+526)
- 31.4.2025 owners 17,291 (+566)
- 31.5.2025 owners 17,485 (+194)
There has been no change in the ownership share of companies and financial and insurance institutions compared to early 2024. A big change has occurred in public sector ownership, which has risen to 8.01%, compared to 4.2% in February 2024.
Many changes have occurred recently, but nothing significant in the big picture. The share price is once again approaching the 50 euro mark, and the share’s return for this year is therefore -0.1%.