Immediately before its introduction on the Stockholm Stock Exchange in 1964, Trelleborg had a capital stock of SEK 63M. In 1966, a directed non-cash issue for SEK 2.6M was made on the acquisition of Ulvex AB. As a result of new stock issues in 1969 (2:5) at a price of SEK 100 and 1976 (1:3 at SEK 110) the capital stock was increased by SEK 26.2M and SEK 30.6M, respectively. In 1978, a directed non-cash issue for SEK 3.2M was made on the acquisition of Tekniska Gummifabriken Jakobsberg AB. Thereafter, stock issues have been made as shown in the following table.
The last change in share capital was in 2009
Year
Issues
Increase in capital stock, SEK
Total capital, SEK
 1982  Directed new issue to Aritmos and others at SEK 125  42,000,000 167,611,200 
 1984
  Stock dividend 1:4, split 4:1 1)
  41,902,800
  209,514,000
 1986  Directed new issue at SEK 95 to acquire Sävsjö Fälgar AB
  6,875,000
  216,389,000
 1986
  Directed new issue at SEK 95 to acquire Boliden shares
  95,150,000
  311,539,000
 1987
  Stock dividend 1:1
  311,539,000
  623,078,000
 1987
  Conversion of subordinated debentures
  15,587,125
  638,665,125
1988 New issue 1:5 of Series C and Series D shares (bonus shares) 2)
  127,733,025
  766,398,150
 1988
  Directed new issue to acquire Boliden shares and convertibles
  39,559,750
  805,957,900
 1988
  Conversion of subordinated debentures
  934,150
  806,892,050
 1989
  Directed new issue to acquire Boliden convertibles
  7,787,700
  814,679,750
 1989
  Conversion of subordinated debentures
  60,100
  814,739,850
 1989
  Stock dividend 1:1
  814,739,850
  1,629,479,700
 1989
  Conversion of subordinated debentures
  17,075
  1,629,496,775
 1990
  Conversion of subordinated debentures
  188,550
  1,629,685,325
 1991
  Conversion of subordinated debentures
  58,075
  1,629,743,400
 1992
  New issue 1:5 at SEK 70
  325,948,675
  1,955,692,075
 1993
  New issue 1:2 at SEK 30
  977,846,025
  2,933,538,100
 2000
  Reduction after buy-back
  -293,353,800
  2,640,184,300
 2001
  Reduction after buy-back
  -375,000,000
  2,265,184,300
 2003
  Conversion of debentures and new subscription through warrants
  21,576,150
  2,286,760,450
 2004
  Conversion of debentures and new subscription through warrants
  112,748,575
  2,399,509,025
 2006
  Reduction after buy-back
  -140,577,500
  2,258,931,525
 2009
  New issue 2:1 at SEK 12
  361,429,044
  2,620,360,569

1) 5 new shares, each with a nominal value of SEK 25 were received for every old share with a nominal value of SEK 100, of which 1 (one) through stock dividend and four through split. 

2) At SEK 200 (restricted shares) and SEK 260 (unrestricted shares), respectively.