Source: Monitor by Modular Finance AB. Known 25 largest shareholders, compiled and processed data from various sources, including Euroclear Sweden, Euroclear Finland and Morningstar.
| Shareholder | Number of shares | Percentage of shares and votes | Verified | |
| 1 | UNIVERSITY OF HELSINKI FUNDS | 5,489,640 | 8.24% | 2021-01-31 |
| 2 | HÆGGSTRÖM EDVARD OLOF | 5,409,405 | 8.12% | 2021-01-31 |
| 3 | MANDATUM LIFE INSURANCE COMPANY LIMITED | 4,304,917 | 6.46% | 2021-01-31 |
| 4 | HANDELSBANKEN FUNDS | 3,871,532 | 5.81% | 2021-01-31 |
| 5 | THE FOURTH SWEDISH NATIONAL PENSION FUND | 2,898,550 | 4.35% | 2021-01-31 |
| 6 | KEEL CAPITAL | 2,778,871 | 4.17% | 2020-12-31 |
| 7 | DNB FUNDS | 2,754,023 | 4.14% | 2021-01-31 |
| 8 | YLIRUUSI JOUKO KALERVO | 2,700,000 | 4.05% | 2021-01-31 |
| 9 | FALCK KAI EDVIN | 2,700,000 | 4.05% | 2021-01-31 |
| 10 | AVOHOIDON TUTKIMUSSÄÄTIÖ SR | 2,638,737 | 3.96% | 2021-01-31 |
| 11 | ILMARINEN MUTUAL PENSION INSURANCE COMPANY | 2,402,000 | 3.61% | 2021-01-31 |
| 12 | NORGES BANK | 1,962,612 | 2.95% | 2021-01-31 |
| 13 | HIGHCLERE INTERNATIONAL INVESTORS LLP | 1,481,294 | 2.22% | 2020-12-31 |
| 14 | FIDELITY INVESTMENTS | 1,358,400 | 2.04% | 2020-12-31 |
| 15 | DNCA FINANCE S.A | 1,307,245 | 1.96% | 2020-12-31 |
| 16 | VARMA MUTUAL PENSION INSURANCE COMPANY | 1,245,000 | 1.87% | 2021-01-31 |
| 17 | OP FUNDS | 1,152,486 | 1.73% | 2021-01-31 |
| 18 | SÄÄSTÖPANKKI FUNDS | 1,137,500 | 1.71% | 2021-01-31 |
| 19 | LASSILA ILKKA JOHANNES | 810,000 | 1.22% | 2021-01-31 |
| 20 | PUITTINEN MIKA PETTER | 758,661 | 1.14% | 2021-01-31 |
| 21 | HÆGGSTRÖM ALBERT ALEXANDER | 692,000 | 1.04% | 2021-01-31 |
| 22 | SVANBÄCK SAMI OSKAR | 491,996 | 0.74% | 2021-01-31 |
| 23 | ÖHMAN KALLE ALEXANDER | 476,574 | 0.72% | 2021-01-31 |
| 24 | KLEMETS RABBE ILARI | 473,400 | 0.71% | 2021-01-31 |
| 25 | DANSKE INVEST FUNDS | 450,000 | 0.68% | 2021-01-31 |
| 25 | SAARMA MART | 450,000 | 0.68% | 2021-01-31 |
| Top 25 shareholders: | 52,194,843 | 78% | ||
| Other shareholders: | 14,405,600 | 22% | ||
| Total: | 66,600,443 | 100% | ||
| Nanoform’s shares are listed on the Premier-segment of Nasdaq First North Growth Market in Helsinki (ticker: NANOFH) and Stockholm (ticker: NANOFS) | ||||