Dana C. O'Brien

Executive

Director

Sterling Infrastructure, Inc.Sterling Construction Co Inc OLIN Corp AdvanSix Inc.

Insider activity · 24 months0 buys3 salesCumulative net flow

Nov 24 · 0 buys · 0 salesDec 24 · 0 buys · 1 saleJan 25 · 0 buys · 0 salesFeb 25 · 0 buys · 0 salesMar 25 · 0 buys · 0 salesApr 25 · 0 buys · 0 salesMay 25 · 0 buys · 0 salesJun 25 · 0 buys · 1 saleJul 25 · 0 buys · 0 salesAug 25 · 0 buys · 0 salesSept 25 · 0 buys · 0 salesOct 25 · 0 buys · 0 salesNov 25 · 0 buys · 0 salesDec 25 · 0 buys · 0 salesJan 26 · 0 buys · 0 salesFeb 26 · 0 buys · 1 saleMar 26 · 0 buys · 0 salesApr 26 · 0 buys · 0 salesMay 26 · 0 buys · 0 salesJun 26 · 0 buys · 0 salesJul 26 · 0 buys · 0 salesAug 26 · 0 buys · 0 salesSept 26 · 0 buys · 0 salesOct 26 · 0 buys · 0 sales

Total declarations

Companies

▲ Purchases (0 ops.)

—

▼ Sales (3 ops.)

€2.5M

Latest filing published 24 Jun 2026 for AdvanSix Inc.. Read the official filing

Filing timeline

BuySale

Dana C. O'Brien

Insider track record

Disclosed buys

Disclosed sells

Not enough buy signals with a settled T+90 horizon to measure a track record yet.

Signal history

Dana C. O'Brien: trading record in brief

This profile gathers the share dealings of Dana C. O'Brien across 3 companies, led by Sterling Infrastructure, Inc., AdvanSix Inc. and OLIN Corp. We count 12 filings; the first trade dates from 5 May 2021 and the latest from 22 June 2026.

Every open-market trade on record is a sale: 3 sales worth €2.5M. The rest of the record consists of 7 share grants. 2026 to date brings no purchases and 1 sale.

The record was last updated on 24 June 2026 with a share grant in AdvanSix Inc. The median gap between a trade and its publication by SEC (Form 4) is 2 days. The legal deadline for a Form 4 is two business days after the transaction. A sale on its own says little: insiders also sell to pay tax, fund a purchase or diversify. Source: insider filings from SEC (Form 4). Past trades are no guide to future returns.