I started reading SEC 8-K filings before every trade. Here's 3 times it actually mattered this week

Not sure if anyone else does this, but I've been spending way too much time on the SEC EDGAR database lately - specifically tracking 8-K filings in real time. For those who don't know, companies are legally required to file an 8-K within 4 business days of any "material event." Acquisitions, CEO changes, bankruptcy, major contracts - it all goes there first, before it hits Bloomberg or CNBC. I started doing this after missing a few moves that I later traced back to filings I could have seen in real time. So I built a little system to monitor them. Here's three from this week that stood out. **$ZD - Ziff Davis sells its Connectivity division for $1.2B** The 8-K dropped at 9:15am. Item 1.01 - material agreement. The filing said Accenture was acquiring the division for $1.2 billion cash. Stock was sitting around $28 at the time. Within 90 minutes it was at $41. That's a 48% move, and the filing was publicly available the whole time on EDGAR. The news didn't hit financial media until the stock was already moving. **$VIR - Vir Biotechnology appoints new President** This one's more subtle. Item 5.02 - changes in executive officers. Marianne De Backer was named President in addition to her existing CEO role. Consolidation of leadership like this is usually either a sign of confidence or a precursor to a strategic move. Stock was at $8.91 at close the day before. Next day it opened at $9.56, up 7.3%. Not a massive move but very clean signal. Leadership changes in biotech almost always get priced in fast. **$VTYX - Ventyx Biosciences completes merger with Eli Lilly** This one was straightforward. Items 2.01, 5.01, 5.02 all in the same filing - that combo almost always means a completed acquisition. Shareholders received $14.00 per share in cash, total deal around $1.2 billion. If you were holding $VTYX you obviously knew about the merger already, but the 8-K confirmed completion before it was widely reported. And if you were short - well, the filing was your warning. I'm not saying this is some magic edge, and I've definitely seen filings that went nowhere too. But its surprisingly consistent how often the 8-K hits EDGAR before the stock actually moves. The items I watch most closely are 2.01 (acquisitions), 5.02 (executive changes), 1.05 (cybersecurity), and 3.01 (delisting risk). Those four cover probably 80% of the high-impact filings. **Anyone else track these? Curious if people have found other item numbers worth watching.**