Up until the merger, Delta Lloyd was owned by the Dutch foundation Nuts OHRA (5%) and publicly traded (95%).

On 23 December 2016, competitor NN Group reached an agreement to acquire Delta Lloyd for 2.5 billion euro.

The "Hollandsche Societeit" had a few non life companies, like the "Koepel" and "Bataafsche", while Amstleven had acquired the Arnhemsche Verzekering maatschappij N.V. in 1964.

[4] Delta Lloyd made 38–42% of its shares public, with its major shareholder Aviva reducing its ownership from 92% to 50–54%.

[5] NN Group is much larger than Delta Lloyd, it has four times as many customers and double the number of employees.

[5] In December 2016, the two reached an agreement after NN Group raised the bid by 10 euro cents to €5.40 per share.

[6] On 1 June 2017 Delta Lloyd ceased to exist for good,[7] The legal merger with NN Group took effect on that day.

OHRA was formed in 1925 and originally known as Onderlinge ziektekostenverzekeringsfonds van Hoogere RijksAmbtenaren (Mutual health insurance for senior civil servants).