Loading
Total declarations
Companies
▲ Purchases (7 ops.)
▼ Sales (4 ops.)
Latest filing published 07 Jan 2026 for Texas Pacific Land Corp.
Filing timeline
BuySaleDonald G. Cook
Insider track record
Disclosed buys
7
Disclosed sells
4
Signal history
Closed purchases
Market purchases
7
Positive at T+90
67%
Median T+90
+30.2%
Based on 3 purchases whose 90-day window has closed (published at least 91 days ago), the same population our ranking model reads.
Purchases by company
Since each purchase
- +130.1%Entry US$205.70 · Close at T+365 US$473.39
- +148.6%Entry US$184.27 · Close at T+365 US$458.02
- +48.0%Entry US$136.36 · Close at T+365 US$201.88
Entry is the close on the day after publication, the first price a reader could act on. Prices in the listing currency. Past moves are not a forecast.
Donald G. Cook: trading record in brief
Donald G. Cook is a Director of two companies, Crane Co (10 filings) and Texas Pacific Land Corp (8), across 18 filings whose trades run from November 2, 2016 to January 5, 2026.
Open-market activity is fairly balanced: 6 purchases worth EUR 64,509 (median EUR 9,153) and 4 sales worth EUR 206,720 (median EUR 41,683). Purchases are 60% of open-market trades by count, yet the sales weigh more in value. The largest sale, EUR 91,842, was at Crane on November 2, 2016. The largest purchase, EUR 21,790, was on February 1, 2019, also at Crane.
All four sales are at Crane. At Texas Pacific Land the record shows 3 purchases, including EUR 10,717 on February 28, 2022.
Trades by Cook within 30 days of colleagues number 3, 2 and 2, all of them in the same direction. Names in order: James L. L. Tullis (Crane Co), Horizon Kinetics Asset Management LLC (Texas Pacific Land Corp) and Kurt F. Gallo (Crane Co). The peak year is 2021 with 6 filings. Median publication delay: 2 days.
Companies and markets linked to Donald G. Cook
Open company profiles for insider transactions, fundamentals and analyst consensus when available.
Declarations18 total
554 shares0Common StockSEC:0001104659-26-001890:0
132 shares0Common StockSEC:0001811074-25-000004:0
10 shares@ US$611.1741.0% of flowCommon StockSEC:0001104659-24-063090:0
Canonical exit: 13 Aug 2024 (T+90)
80 shares0Common StockSEC:0001104659-24-000796:0
5 shares@ US$1,733.1159.0% of flowCommon StockSEC:0001104659-23-115716:0
Canonical exit: 5 Feb 2024 (T+90)
54 shares0Common StockSEC:0001104659-23-000387:0
10 shares@ US$1,198.30100.0% of flowCommon StockSEC:0001104659-22-029257:0
Canonical exit: 29 May 2022 (T+90)
85 shares0Common StockSEC:0001104659-22-003199:0
500 shares@ US$103.5014.4% of flowCRANE CO. COMMON, PAR VALUE $1.00SEC:0000025445-21-000134:1
500 shares@ US$46.9950.7% of flowCRANE CO. COMMON, PAR VALUE $1.00SEC:0000025445-21-000134:0
500 shares@ US$94.8712.8% of flowCRANE CO. COMMON, PAR VALUE $1.00SEC:0000025445-21-000111:1
500 shares@ US$46.9949.3% of flowCRANE CO. COMMON, PAR VALUE $1.00SEC:0000025445-21-000111:0
500 shares@ US$47.086.4% of flowCRANE CO. COMMON, PAR VALUE $1.00SEC:0000025445-21-000068:0
500 shares@ US$76.4110.3% of flowCRANE CO. COMMON, PAR VALUE $1.00SEC:0000025445-21-000068:1
200 shares@ US$51.0216.3% of flowCRANE CO. COMMON, PAR VALUE $1.00SEC:0000025445-20-000087:0
Canonical exit: 6 Aug 2020 (T+90)
130 shares@ US$76.2911.2% of flowCRANE CO. COMMON, PAR VALUE $1.00SEC:0000025445-19-000126:0
Canonical exit: 29 Jan 2020 (T+90)
302 shares@ US$82.6127.4% of flowCRANE CO. COMMON, PAR VALUE $1.00SEC:0000025445-19-000059:0
Canonical exit: 2 May 2019 (T+90)
1,500 shares@ US$67.7053.6% of flowCRANE CO. COMMON, PAR VALUE $1.00SEC:0001225208-16-041209:0
18 of 18 declarations
