D. E. Shaw & Co., Inc. reports 61.75% decrease in ownership of 1GIA / FirstService Corporation

FirstService Corporation

DE ˙ DB ˙ CA33767E2024

118,00 € ↑3,00 (2,61%)

2026-06-03
DEL PRIS

Security	DE:1GIA / FirstService Corporation
Institution	D. E. Shaw & Co., Inc.
Manager	DE Shaw
Latest Disclosed Ownership	16,911 shares
Latest Disclosed Value	$ 2,351,862

On May 15, 2026 - D. E. Shaw & Co., Inc. filed a 13F-HR form disclosing ownership of 16,911 shares of FirstService Corporation (DE:1GIA) valued at $1,995,498 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 44,211 shares of FirstService Corporation. This represents a change in shares of -61.75% during the quarter. The current value of the position is $1,995,498 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)

File Date	Effective Date	Form	Security	Class	ID	Reported Shares	ΔShares	ΔShares (%)	Reported Value (x1000)	ΔValue (%)	Alloc (%)
2026-05-15	2026-03-31	13F	FIRSTSERVICE CORP	COM	33767E202	16,911	-27,300	-61.75	2,352	-65.81	0.0014
2026-02-17	2025-12-31	13F	FIRSTSERVICE CORP	COM	33767E202	44,211	-46,500	-51.26	6,876	-60.20	0.0038
2025-11-14	2025-09-30	13F	FIRSTSERVICE CORP	COM	33767E202	90,711	16,900	22.90	17,278	34.05	0.0098
2025-08-14	2025-06-30	13F	FIRSTSERVICE CORP	COM	33767E202	73,811	15,600	26.80	12,889	33.52	0.0091
2025-05-15	2025-03-31	13F	FIRSTSERVICE CORP	COM	33767E202	58,211	-33,100	-36.25	9,654	-41.61	0.0086
2025-02-14	2024-12-31	13F	FIRSTSERVICE CORP	COM	33767E202	91,311	61,000	201.25	16,532	198.50	0.0121
2024-11-14	2024-09-30	13F	FIRSTSERVICE CORP	COM	33767E202	30,311	3,500	13.05	5,538	35.74	0.0048
2024-08-14	2024-06-30	13F	FIRSTSERVICE CORP	COM	33767E202	26,811	10,800	67.45	4,081	53.90	0.0038
2024-05-15	2024-03-31	13F	FIRSTSERVICE CORP	COM	33767E202	16,011	-8,600	-34.94	2,652	-33.48	0.0023
2024-02-14	2023-12-31	13F	FIRSTSERVICE CORP	COM	33767E202	24,611	6,400	35.14	3,986	50.43	0.0035
2023-11-14	2023-09-30	13F	FIRSTSERVICE CORP	COM	33767E202	18,211	-6,800	-27.19	2,650	-31.21	0.0028
2023-08-14	2023-06-30	13F	FIRSTSERVICE CORP	COM	33767E202	25,011	-4,000	-13.79	3,852	-5.77	0.0039
2023-05-15	2023-03-31	13F	FIRSTSERVICE CORP	COM	33767E202	29,011	1,500	5.45	4,087	21.38	0.0044
2023-02-14	2022-12-31	13F	FIRSTSERVICE CORP	COM	33767E202	27,511	-32,000	-53.77	3,368	-52.42	0.0037
2022-11-14	2022-09-30	13F	FIRSTSERVICE CORP	COM	33767E202	59,511	-58,100	-49.40	7,076	-50.39	0.0085
2022-08-15	2022-06-30	13F	FIRSTSERVICE CORP	COM	33767E202	117,611	-30,200	-20.43	14,264	-33.26	0.0167
2022-05-16	2022-03-31	13F	FIRSTSERVICE CORP	COM	33767E202	147,811	44,100	42.52	21,372	4.80	0.0200
2022-02-14	2021-12-31	13F	FIRSTSERVICE CORP	COM	33767E202	103,711	25,700	32.94	20,394	44.79	0.0169
2021-11-15	2021-09-30	13F	FIRSTSERVICE CORP	COM	33767E202	78,011	-23,100	-22.85	14,085	-18.78	0.0127
2021-08-16	2021-06-30	13F	FIRSTSERVICE CORP	COM	33767E202	101,111	-42,200	-29.45	17,341	-18.51	0.0150
2021-05-17	2021-03-31	13F	FIRSTSERVICE CORP	COM	33767E202	143,311	-15,000	-9.48	21,281	-1.75	0.0205
2021-02-16	2020-12-31	13F	FIRSTSERVICE CORP	COM	33767E202	158,311	121,211	326.71	21,661	342.60	0.0194
2020-11-16	2020-09-30	13F	FIRSTSERVICE CORP	COM	33767E202	37,100	14,000	60.61	4,894	110.31	0.0050
2020-08-14	2020-06-30	13F	FIRSTSERVICE CORP	COM	33767E202	23,100	-29,900	-56.42	2,327	-43.12	0.0028
2020-05-15	2020-03-31	13F	FIRSTSERVICE CORP	COM	33767E202	53,000	41,000	341.67	4,091	266.25	0.0064
2020-02-14	2019-12-31	13F	FIRSTSERVICE CORP	COM	33767E202	12,000	-11,100	-48.05	1,117	-52.87	0.0013
2019-11-14	2019-09-30	13F	FIRSTSERVICE CORP	COM	33767E202	23,100	10,900	89.34	2,370	101.87	0.0029
2019-08-14	2019-06-30	13F	FIRSTSERVICE CORP	COM	33767E202	12,200	12,200		1,174		0.0015
2019-05-15	2019-03-31	13F	FIRSTSERVICE CORP	SUB VTG SH	33767E103	0	-3,600	-100.00	0	-100.00
2019-02-14	2018-12-31	13F	FIRSTSERVICE CORP	SUB VTG SH	33767E103	3,600	-2,400	-40.00	247	-51.28	0.0003
2018-11-14	2018-09-30	13F	FIRSTSERVICE CORP	SUB VTG SH	33767E103	6,000	6,000		507		0.0006
2018-08-14	2018-06-30	13F	FIRSTSERVICE CORP	SUB VTG SH	33767E103	0	-6,900	-100.00	0	-100.00
2018-05-15	2018-03-31	13F	FIRSTSERVICE CORP	SUB VTG SH	33767E103	6,900	300	4.55	505	9.54	0.0007
2018-02-14	2017-12-31	13F	FIRSTSERVICE CORP	SUB VTG SH	33767E103	6,600	6,600		461		0.0006
2017-08-14	2017-06-30	13F	FIRSTSERVICE CORP	SUB VTG SH	33767E103	0	-7,600	-100.00	0	-100.00
2017-05-15	2017-03-31	13F	FIRSTSERVICE CORP	SUB VTG SH	33767E103	7,600	7,600		459		0.0008
2015-08-14	2015-06-30	13F	FIRSTSERVICE	SUB VTG SH	33761N109	0	-6,600	-100.00	0	-100.00
2015-05-15	2015-03-31	13F	FIRSTSERVICE	SUB VTG SH	33761N109	6,600	6,600		427		0.0007
2014-11-14	2014-09-30	13F	FIRSTSERVICE	SUB VTG SH	33761N109	0	-7,200	-100.00	0	-100.00
2014-08-14	2014-06-30	13F	FIRSTSERVICE	SUB VTG SH	33761N109	7,200	7,200		365		0.0005

Legend

Shares: The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value: The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price: The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class: This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred

Allocation (%): The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation: The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%): The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis: The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss: This is the market value of the position as of the effective date minus the cost basis.