InsidersTradesSigma
Total declarations
Companies
▲ Purchases (0 ops.)
▼ Sales (6 ops.)
Insider track record
Board DirectorDisclosed buys
0
Disclosed sells
6
Not enough buy signals with a settled T+90 horizon to measure a track record yet.
Signal history
Explore the detailed record of transactions filed by Tanski Ronald J, Director. Director active across 2 companies, notably CMS Energy CORP. Cumulatively, 37 disclosures have been published. Split: 0 buy · 6 sells. Total volume traded: €7.7m. History available since 7 May 2021. The latest transaction was disclosed on 1 April 2026 (Attribution). Regulator: SEC (Form 4). The full history is free.
Companies and markets linked to Tanski Ronald J
Open company profiles for insider transactions, fundamentals and analyst consensus when available.
Declarations37 total
469 shares@ US$93.290.4% of flowCommon StockSEC:0001209940-26-000004:0
541 shares@ US$80.9450.4% of flowCommon StockSEC:0001209940-26-000002:0
1,395 shares0Common StockSEC:0001209940-25-000007:0
471 shares@ US$92.9550.4% of flowCommon StockSEC:0001209940-25-000005:0
518 shares@ US$84.620.4% of flowCommon StockSEC:0001562180-25-005318:0
2,401 shares0Common StockSEC:0000811156-25-000057:0
552 shares@ US$79.2650.3% of flowCommon StockSEC:0001562180-25-002975:0
715 shares@ US$61.2150.3% of flowCommon StockSEC:0001562180-25-000087:0
1,650 shares0Common StockSEC:0001562180-24-008011:0
306 shares@ US$56.990.1% of flowCommon StockSEC:0001562180-24-007119:0
311 shares@ US$53.480.1% of flowCommon StockSEC:0001562180-24-005586:0
2,843 shares0Common StockSEC:0000811156-24-000104:0
820 shares@ US$53.3650.3% of flowCommon StockSEC:0001562180-24-003229:0
865 shares@ US$50.5950.3% of flowCommon StockSEC:0001562180-24-000214:0
1,980 shares0Common StockSEC:0001562180-23-008372:0
857 shares@ US$51.0650.3% of flowCommon StockSEC:0001562180-23-007169:0
849 shares@ US$51.590.3% of flowCommon StockSEC:0001562180-23-005681:0
2,582 shares0Common StockSEC:0000811156-23-000056:0
758 shares@ US$57.750.3% of flowCommon StockSEC:0001562180-23-003353:0
710 shares@ US$61.630.3% of flowCommon StockSEC:0001562180-23-000095:0
1,500 shares0Common StockSEC:0001562180-22-008265:0
692 shares@ US$63.290.4% of flowCommon StockSEC:0001562180-22-006990:0
656 shares@ US$66.740.3% of flowCommon StockSEC:0001562180-22-005500:0
2,362 shares0Common StockSEC:0000811156-22-000100:0
10,207 shares@ US$69.4830.0078% mcap5.6% of flowCommon StockSEC:0001562180-22-003373:0
25 of 37 declarations
About Tanski Ronald J
TANSKI RONALD J is Administrateur at National Fuel GAS Co and CMS Energy CORP. Across 37 filings in total, the 37 sampled filings run from 2021-05-10 to 2026-04-02, with EUR 0 of buys and EUR 7677663 of sells, and the most common transaction nature is Attribution.
