InsidersTradesSigma
Total declarations
Companies
▲ Purchases (1 ops.)
▼ Sales (0 ops.)
Insider track record
Board DirectorDisclosed buys
1
Disclosed sells
0
Not enough buy signals with a settled T+90 horizon to measure a track record yet.
Signal history
Browse the detailed record of transactions filed by Sparby David M, Director. Officer active across 2 companies, notably MDU Resources Group INC. Aggregated, 6 disclosures have been recorded. Split: 1 buy · 0 sell. Total volume traded: €125k. Activity tracked since 16 November 2021. The latest transaction was disclosed on 17 August 2026 (Acquisition). Regulator: SEC (Form 4). The full history is openly available.
Companies and markets linked to Sparby David M
Open company profiles for insider transactions, fundamentals and analyst consensus when available.
Declarations6 total
1,000 shares@ US$144.950.0020% mcap100.0% of flowCommon StockSEC:0001225208-26-007147:0
Canonical exit: 15 Nov 2026 (T+90)
2,887 shares0Common StockSEC:0001225208-25-005431:0
2,347 shares0Common StockSEC:0001225208-24-010254:0
8,008 shares@ US$18.7326.0% of flowCommon StockSEC:0001225208-23-010313:0
4,896 shares@ US$30.63727.4% of flowCommon StockSEC:0001225208-22-011858:0
4,831 shares@ US$28.97830.3% of flowCommon StockSEC:0001225208-21-013940:0
6 of 6 declarations
About Sparby David M
David M. Sparby is a Director at MDU RESOURCES GROUP INC. In this role, he participates in strategic decision-making and governance of the company, bringing his expertise in the resources sector.
