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Mark R Patterson

CIK 1500081 · CEO and Chairman · last filed 2026-08-31

Mark R Patterson is a CEO and Chairman who has filed 95 SEC Form 4 insider transactions across 6 companies since 2011. The most recent filing shows the insider sold $38.8K of DLR on Aug 31, 2026. Across all open-market trades the lifetime net is +$130.3K, making them a net buyer over the disclosed history. Current disclosed insider exposure totals $2.0M across reported positions. 16 SEC filings were submitted jointly with AMERICOLD REALTY TRUST.

"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.

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Disclosed Exposure

$1.98M

Companies

6

Total Filings

95

Lifetime Open-Market Net

$130.3K

Filer Profile

Reported Address
40 MINNISINK ROAD
SHORT HILLS, NJ 07078
Related Filers
AMERICOLD REALTY TRUST — 16 joint filings, latest 2026-05-20
General Growth Properties, Inc. — 8 joint filings, latest 2017-01-05
Profile details as reported on the filer's SEC submissions — for individual insiders the address is often in care of the issuer. Related filers are identified from jointly filed SEC submissions and shared reported addresses. View filings on SEC EDGAR.

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.
Symbol Role Shares Price Disclosed Exposure Lifetime OM Net Filings Latest Filed
DLR Director 6,322 $188.58 $1.19M -$69.7K 26 2026-08-31
EROC Director 13,024 $12.70 $165.4K $0 1 2026-06-12
COLD Director 21,207 $14.62 $310.0K $200.0K 15 2026-05-20
UDR Director 8,983 $35.12 $315.5K $0 13 2026-01-06
Paramount Group, Inc. (PGRE) Delisted Director — $6.60 — $0 9 2025-12-22
Brookfield Property REIT Inc. (GGP) Delisted Director 27,395 — — $0 7 2017-01-05

Recent Filings

95 filings
Insider activity across all companies, newest first. Form 4 rows are post-trade confirmations (buys, sells, grants, exercises). Notice (144) rows are pre-trade notices of intent to sell restricted or control stock under Rule 144 — they may not all execute. Compare adjacent dates to see which notices became actual sales.
Filed Symbol Action Net Shares Net $ Link
2026-08-31 DLR Sell (S) −200 -$38.8K EDGAR
2026-06-12 EROC Grant (A) +13,024 $0 EDGAR
2026-06-02 DLR Grant (A) — $0 EDGAR
2026-06-02 — Grant (A) — $0
2026-05-20 COLD Grant (A) — $0 EDGAR
2026-01-06 UDR Grant (A) — $0 EDGAR
2025-12-22 Paramount Group, Inc. (PGRE) Delisted Mixed — $0 EDGAR
2025-06-10 DLR Grant (A) — $0 EDGAR
2025-06-10 — Grant (A) — $0
2025-06-06 DLR Sell (S) −175 -$30.9K EDGAR
Showing 1–10 of 95
Page 1 of 10
Form 4 codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.