Mark R Patterson

Insider

First SEC filing: Jan. 6, 2021 · Latest: Jan. 6, 2021

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Insider at Companies where this person is a reporting insider.
Insider transactions Every share this person bought or sold, from Form 4 filings.
Derivatives Options and other derivative holdings reported by this person.
Initial holdings The stakes this person held when they first started reporting.

Insider at

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 36 non-open-market transactions below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

36 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
June 11, 2026	EROC	A	13,024	—	—	13,024 Direct	—	Acquired	(price as of 2026-08-20)
May 29, 2026	DLR	A	1,289	—	—	15,509 Direct	+9.06%	Acquired	(price as of 2026-08-20)
May 18, 2026	COLD	A	16,218	—	—	16,218 Direct	—	Acquired	(price as of 2026-08-20)
June 7, 2024	DLR	A	1,571	—	—	12,920 Direct	+13.84%	Acquired	(price as of 2026-08-20)
June 8, 2023	DLR	A	1,818	—	—	11,349 Direct	+19.07%	Acquired	(price as of 2026-08-20)
Jan. 3, 2023	UDR	A	24,361	—	—	54,268 Direct	+81.46%	Acquired	(price as of 2026-08-20)
June 3, 2022	DLR	A	1,412	—	—	9,531 Direct	+17.39%	Acquired	(price as of 2026-08-20)
June 3, 2022	DLR	A	1,412	—	—	9,531 Direct	+17.39%	Acquired	(price as of 2026-08-20)
Jan. 3, 2022	UDR	A	4,090	—	—	23,090 Direct	+21.53%	Acquired	(price as of 2026-08-20)
June 3, 2021	DLR	A	1,222	—	—	8,119 Direct	+17.72%	Acquired	(price as of 2026-08-20)
Jan. 4, 2021	UDR	A	29,907	—	—	29,907 Direct	—	Acquired	(price as of 2026-08-20)
Nov. 10, 2020	DLR	A	105	—	—	6,897 Direct	+1.55%	Acquired	(price as of 2026-08-20)
Aug. 11, 2020	DLR	A	94	—	—	6,792 Direct	+1.40%	Acquired	(price as of 2026-08-20)
June 8, 2020	DLR	A	1,165	—	—	6,698 Direct	+21.06%	Acquired	(price as of 2026-08-20)
May 12, 2020	DLR	A	108	—	—	5,533 Direct	+1.99%	Acquired	(price as of 2026-08-20)
Feb. 18, 2020	DLR	A	107	—	—	5,425 Direct	+2.01%	Acquired	(price as of 2026-08-20)
Jan. 2, 2020	UDR	A	3,469	—	—	19,000 Direct	+22.34%	Acquired	(price as of 2026-08-20)
May 13, 2019	DLR	A	1,413	—	—	5,318 Direct	+36.18%	Acquired	(price as of 2026-08-20)
March 15, 2019	COLD	A	2,457	—	—	2,457 Direct	—	Acquired	(price as of 2026-08-20)
Jan. 23, 2019	COLD	M	6,250	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-20)
Jan. 23, 2019	COLD	M	2,083	—	—	4,167 Direct	-33.33%	Disposed	(price as of 2026-08-20)
Jan. 23, 2019	COLD	M	8,333	—	—	14,583 Direct	+133.33%	Acquired	(price as of 2026-08-20)
Jan. 2, 2019	UDR	A	4,558	—	—	15,531 Direct	+41.54%	Acquired	(price as of 2026-08-20)
Nov. 27, 2018	DLR	A	89	—	—	3,905 Direct	+2.33%	Acquired	(price as of 2026-08-20)
May 8, 2018	DLR	A	1,387	—	—	3,816 Direct	+57.10%	Acquired	(price as of 2026-08-20)
Jan. 23, 2018	COLD	A	6,250	—	—	6,250 Direct	—	Acquired	(price as of 2026-08-20)
Jan. 23, 2018	COLD	A	6,250	—	—	6,250 Direct	—	Acquired	(price as of 2026-08-20)
Jan. 23, 2018	COLD	P	6,250	$16.00	$100,000	6,250 Direct	—	Acquired	-6.0% (price as of 2026-08-20)
Jan. 23, 2018	COLD	A	6,250	—	—	6,250 Direct	—	Acquired	(price as of 2026-08-20)
Jan. 23, 2018	COLD	P	6,250	$16.00	$100,000	6,250 Direct	—	Acquired	-6.0% (price as of 2026-08-20)
Jan. 2, 2018	UDR	A	3,547	—	—	10,973 Direct	+47.76%	Acquired	(price as of 2026-08-20)
May 8, 2017	DLR	A	1,277	—	—	2,429 Direct	+110.85%	Acquired	(price as of 2026-08-20)
Jan. 3, 2017	UDR	A	3,755	—	—	7,426 Direct	+102.29%	Acquired	(price as of 2026-08-20)
Aug. 10, 2016	DLR	A	164	—	—	1,152 Direct	+16.60%	Acquired	(price as of 2026-08-20)
July 27, 2016	DLR	A	988	—	—	988 Direct	—	Acquired	(price as of 2026-08-20)
Feb. 4, 2016	UDR	A	3,671	—	—	3,671 Direct	—	Acquired	(price as of 2026-08-20)
Jan. 2, 2015	UDR	A	3,826	$31.37	$120,022	8,983 Direct	+74.19%	Acquired	20.4% (price as of 2026-08-20)
Jan. 2, 2014	UDR	A	5,157	$23.27	$120,003	5,157 Direct	—	Acquired	62.3% (price as of 2026-08-20)

P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding

Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.

Derivative holdings (Form 4 Table II)

Options, RSUs and convertible securities reported on Form 4 Table II.

Date	Ticker	Security	Underlying	Exercise price	Expiration	Shares	A/D
May 29, 2026	DLR	Long-Term Incentive Units [F1]	Common Stock (1,289)	—	—	1,289	Acquired
May 18, 2026	COLD	Operating Partnership Profits Units [F1]	Common Stock (16,218)	—	—	16,218	Acquired
June 7, 2024	DLR	Long-Term Incentive Units [F1]	Common Stock (1,571)	—	—	1,571	Acquired
June 8, 2023	DLR	Long-Term Incentive Units [F2]	Common Stock (1,818)	—	—	1,818	Acquired
Jan. 3, 2023	UDR	Class 1 Performance LTIP Units [F1]	Common Stock [F2,F3,F4,F5,F6,F7] (24,361)	—	Jan. 3, 2033	24,361	Acquired
June 3, 2022	DLR	Long-Term Incentive Units [F1]	Common Stock (1,412)	—	—	1,412	Acquired
June 3, 2022	DLR	Long-Term Incentive Units [F1]	Common Stock (1,412)	—	—	1,412	Acquired
Jan. 3, 2022	UDR	Class 1 LTIP Units [F1]	Common Stock [F2,F3,F4,F5] (4,090)	—	—	4,090	Acquired
June 3, 2021	DLR	Long-Term Incentive Units [F1]	Common Stock (1,222)	—	—	1,222	Acquired
Jan. 4, 2021	UDR	Class 1 Performance LTIP Units [F1]	Common Stock (29,907)	—	Jan. 4, 2031	29,907	Acquired
Nov. 10, 2020	DLR	Long-Term Incentive Units [F1]	Common Stock (105)	—	—	105	Acquired
Aug. 11, 2020	DLR	Long-Term Incentive Units [F1]	Common Stock (94)	—	—	94	Acquired
June 8, 2020	DLR	Long-Term Incentive Units [F1]	Common Stock (1,165)	—	—	1,165	Acquired
May 12, 2020	DLR	Long-Term Incentive Units [F1]	Common Stock (108)	—	—	108	Acquired
Feb. 18, 2020	DLR	Long-Term Incentive Units [F2]	Common Stock (107)	—	—	107	Acquired
Jan. 2, 2020	UDR	Class 1 LTIP Units [F1]	Common Stock (3,469)	—	—	3,469	Acquired
May 13, 2019	DLR	Long-Term Incentive Units [F1]	Common Stock (1,413)	—	—	1,413	Acquired
March 15, 2019	COLD	Restricted Stock Units	Common Shares of Beneficial Interest (2,457)	—	—	2,457	Acquired
Jan. 23, 2019	COLD	Restricted Stock Units	Common Shares of Beneficial Interest (6,250)	—	—	6,250	Disposed
Jan. 23, 2019	COLD	Restricted Stock Units	Common Shares of Beneficial Interest (2,083)	—	—	2,083	Disposed
Jan. 2, 2019	UDR	Class 1 LTIP Units [F1]	Common Stock (4,558)	—	—	4,558	Acquired
Nov. 27, 2018	DLR	Long-Term Incentive Units [F1]	Common Stock (89)	—	—	89	Acquired
May 8, 2018	DLR	Long-Term Incentive Units [F1]	Common Stock (1,387)	—	—	1,387	Acquired
Jan. 23, 2018	COLD	Restricted Stock Units	Common Shares of Beneficial Interest (6,250)	—	—	6,250	Acquired
Jan. 23, 2018	COLD	Restricted Stock Units	Common Shares of Beneficial Interest (6,250)	—	—	6,250	Acquired
Jan. 23, 2018	COLD	Restricted Stock Units	Common Shares of Beneficial Interest (6,250)	—	—	6,250	Acquired
Jan. 2, 2018	UDR	Class 1 LTIP Units [F1]	Common Stock (3,547)	—	—	3,547	Acquired
May 8, 2017	DLR	Long-Term Incentive Units [F1]	Common Stock (1,277)	—	—	1,277	Acquired
Jan. 3, 2017	UDR	Class 1 LTIP Units [F1]	Common Stock (3,755)	—	—	3,755	Acquired
Aug. 10, 2016	DLR	Long-Term Incentive Units [F1]	Common Stock (164)	—	—	164	Acquired
July 27, 2016	DLR	Long-Term Incentive Units [F1]	Common Stock (988)	—	—	988	Acquired
Feb. 4, 2016	UDR	Class 1 LTIP Units [F1]	Common Stock (3,671)	—	—	3,671	Acquired

Exercise/conversion price is blank when not applicable (e.g. RSUs).

Initial ownership (Form 3) 2 holdings

Securities held when first becoming an insider, per SEC Form 3.

Date	Ticker	Security	Shares	Ownership
June 9, 2026	EROC	Class M Units→ Class A Common Stock (580,107)	580,107	Direct
July 29, 2016	DLR	No securities are beneficially owned	0	Direct