Trinseo PLC (TSE)

Historical Shares Outstanding

Current Count

36.2M

Financial Fundamentals

TSE • Quarterly Data • 5Y View

Date	Shares Out. (M)	Change (M)	Change %
2026-03-31	36.2	0.4	+1.12%
2025-12-31	35.8	-0.2	-0.56%
2025-09-30	36.0	0.4	+1.12%
2025-06-30	35.6	0.1	+0.28%
2025-03-31	35.5	0.1	+0.28%
2024-12-31	35.4	0.0	0.00%
2024-09-30	35.4	0.1	+0.28%
2024-06-30	35.3	0.0	0.00%
2024-03-31	35.3	0.1	+0.28%
2023-12-31	35.2	0.0	0.00%
2023-09-30	35.2	0.0	0.00%
2023-06-30	35.2	0.2	+0.57%
2023-03-31	35.0	0.0	0.00%
2022-12-31	35.0	-0.2	-0.57%
2022-09-30	35.2	-1.8	-4.86%
2022-06-30	37.0	-1.1	-2.89%
2022-03-31	38.1	-1.4	-3.54%
2021-12-31	39.5	0.0	0.00%
2021-09-30	39.5	-0.1	-0.25%
2021-06-30	39.6	0.1	+0.25%
2021-03-31	39.5	0.5	+1.28%
2020-12-31	39.0	0.6	+1.56%
2020-09-30	38.4	0.1	+0.26%
2020-06-30	38.3	-0.2	-0.52%
2020-03-31	38.5	-0.9	-2.28%
2019-12-31	39.4	-1.0	-2.48%
2019-09-30	40.4	-0.7	-1.70%
2019-06-30	41.1	-0.7	-1.67%
2019-03-31	41.8	-0.4	-0.95%
2018-12-31	42.2	-1.1	-2.54%
2018-09-30	43.3	-0.5	-1.14%
2018-06-30	43.8	-0.6	-1.35%
2018-03-31	44.4	-0.3	-0.67%
2017-12-31	44.7	-0.1	-0.18%
2017-09-30	44.8	-0.2	-0.47%
2017-06-30	45.0	-0.3	-0.67%
2017-03-31	45.3	-0.5	-0.99%
2016-12-31	45.8	-1.2	-2.57%
2016-09-30	47.0	-0.9	-1.87%
2016-06-30	47.9	-1.2	-2.50%
2016-03-31	49.1	0.0	+0.04%
2015-12-31	49.1	0.1	+0.16%
2015-09-30	49.0	0.1	+0.17%
2015-06-30	48.9	0.1	+0.11%
2015-03-31	48.9	0.1	+0.17%
2014-12-31	48.8	0.0	0.00%
2014-09-30	48.8	9.9	+25.33%
2014-06-30	38.9	-8.4	-17.68%
2014-03-31	47.3	0.0	0.00%
2013-12-31	47.3	0.0	0.00%
2013-09-30	47.3	0.0	0.00%
2013-06-30	47.3	0.0	0.00%
2013-03-31	47.3	0.0	0.00%
2012-12-31	47.3	10.0	+26.83%
2012-09-30	37.3	-10.0	-21.16%
2011-03-31	47.3	0.0	0.00%
2010-06-30	47.3	0.0	0.00%
2010-03-31	47.3	—	—