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The non-waiver trade deadline passed at 4 p.m. ET on Thursday afternoon. Here's a look at what went on throughout the day:

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UPDATE: 5:00 p.m.

The Astros and Marlins pulled off an interesting swap right at the buzzer.

Trade details
MARLINS get: ASTROS get:
P Jared Cosart
OF Austin Wates
INF Enrique Hernandez		 P Jake Marisnick
P Frances Martes
3B Colin Moran
Competitive balance pick

UPDATE: 4:55 p.m.

Another last minute trade, this one involving a rebuilding club and a contender supplementing the margins of their roster.

Trade details
BRAVES get: CUBS get:
INF/OF Emilio Bonifacio
P James Russell		 C Victor Caratini

UPDATE: 4:52 p.m.

The Yankees did land another hitter, making their second trade with the Diamondbacks this month.

Trade details
YANKEES get: DIAMONDBACKS get:
INF/OF Martin Prado C/OF/INF Peter O'Brien

New York acquired Brandon McCarthy from Arizona before the All-Star break.

UPDATE: 4:15 p.m.

Remember, trades can still happen in August. Here's how.

UPDATE: 4:10 p.m.

A flurry of moves happened right at the deadline.

The Yankees have acquired Stephen Drew from the Red Sox for Kelly Johnson

Trade details
YANKEES get: RED SOX get:
SS Stephen Drew 3B Kelly Johnson

Here's the final David Price trade:

Trade details
TIGERS get: MARINERS get: RAYS get:
P David Price OF Austin Jackson OF Drew Smyly
SS Nick Franklin
SS Willy Adames

UPDATE: 3:51 p.m.

And there we have it, David Price has been traded. More details on that deal here.

UPDATE: 3:31 p.m.

It appears another blockbuster is forthcoming:

UPDATE: 3:28 p.m.

Two smaller trades have gone down. The first...

Trade details
ORIOLES get: RED SOX get:
P Andrew Miller P Eduardo Rodriguez
More Coverage >>

And the second...

Trade details
NATIONALS get: INDIANS get:
SS Asdrubal Cabrera SS Zach Walters

UPDATE: 3:24 p.m.

While the Dodgers may or may not be in on Price, the Angels don't have anything in the works.

The Halos acquired RHP Huston Street and RHP Jason Grilli in recent weeks.

UPDATE: 3:20 p.m.

With 40 minutes to go...

UPDATE: 2:35 p.m.

Buckle up, folks:

My complete guess of a prediction: the Dodgers.

UPDATE: 2:33 p.m.

The Mariners have added the right-handed outfield bat they've been seeking:

Trade details
MARINERS get: PADRES get:
OF Chris Denorfia OF Abraham Almonte
P Stephen Kohlscheen
More Coverage >>

UPDATE: 2:26 p.m.

It appears LHP Andrew Miller will not be rejoining to his former team:

That doesn't mean he is staying put, of course.

UPDATE: 2:12 p.m.

The Brewers have added some outfield depth in a lower profile swap with the Diamondbacks:

Trade details
BREWERS get: DIAMONDBACKS get:
OF Gerardo Parra OF Mitch Haniger
P Anthony Banda

UPDATE: 2:06 p.m.

Another update on Price from Heyman:

UPDATE: 2:00 p.m.

There is a bogus report out there saying OF Marlon Byrd has been traded to the Yankees.

This is the time of year for that stuff, unfortunately.

UPDATE: 1:58 p.m.

An update on Price, with the Dodgers emerging as the likely landing spot:

Heyman has some more. Stay tuned, obviously.

UPDATE: 1:50 p.m.

Teams have given up a lot to acquire proven starters over the last few weeks and the Reds may take advantage:

No reason not to listen.

UPDATE: 1:45 p.m.

So this is a pretty big deal:

The trade deadline is a little more than two hours away right now.

UPDATE: 1:27 p.m.

It appears OF Alex Rios may soon be on the move:

The Giants have been playing 1B/OF Mike Morse at first base in the wake of 1B Brandon Belt's concussion.

UPDATE: 1:19 p.m.

Ken Rosenthal of Fox Sports lists the Orioles, Marlins and Rangers as teams with interest in Astros RHP Jarred Cosart. Rosenthal also says the Cubs are likely to trade UTIL Emilio Bonifacio, with the ORioles, Giants, Mariners, Royals and Pirates among the interested clubs.

UPDATE: 1:16 p.m.

The Red Sox aren't done, folks. They're "getting close" to a deal with the Tigers involving LHP Andrew Miller, according to Jon Morosi of Fox Sports.

UPDATE: 1:10 p.m.

Boston had made their second big move of the day:

Trade details
CARDINALS get: RED SOX get:
P John Lackey P Joe Kelly
OF Allen Craig

The Cardinals had reportedly soured on Craig during his down year, so the Red Sox bought low. Props to Boston for trading their guys for big leaguers and not obsessing over building the farm system.

UPDATE: 12:30 p.m.

The Red Sox are close to trading Lackey to an NL contender:

So, one season after winning the World Series, Boston is in full tear-down mode. Crazy.

UPDATE: 12:25 p.m.

According to Heyman, the Royals, Giants, Mariners, Reds and Indians are among the teams looking at Rangers OF Alex Rios.

UPDATE: 12:15 p.m.

Well, this embarrassing. MLB Network was duped by a fake Twitter rumor:

As someone who has fallen victim to posting fake rumors, I know how embarrassing that is.

UPDATE: 12:10 p.m.

Even after trading Lester, the Red Sox are still discussing RHP John Lackey with several teams, according to Pete Abraham of the Boston Globe. He hears the likelihood of a trade is "70 percent." Bob Nightengale of USA Today says Boston is also getting a ton of calls on LHP Andrew Miller.

Meanwhile, Joel Sherman of the New York Post says Padres OF Chris Denorfia will be traded today, with the Royals and Braves the most likely landing spots.

UPDATE: 11:55 a.m.

Got a couple of updates from the NL West to pass along:

I really don't understand what the Rockies are doing.

UPDATE: 11:40 a.m.

In the wake of the Lester trade, interest in LHP David Price has intensified and a deal is looking more likely.

The Pirates, Dodgers and Brewers were among the teams connected to Lester who could make a play for Price.

UPDATE: 11:25 a.m.

The Royals continue to fade out of the postseason picture, but that doesn't mean they will stand pat. They've been connected to a veteran starter with less than five hours to go before the deadline:

The escalating player option for 2015 in Burnett's contract figures to be an obstacle.

UPDATE: 11:20 a.m.

What about the Yankees and Mets? They surely the two New York teams have something cooking today, right? Well, kind of:

The Yankees have already acquired Brandon McCarthy and Chase Headley, remember.

UPDATE: 11:15 a.m.

The Phillies have placed a very high price on OF Marlon Byrd, according to Heyman.

UPDATE: 11:10 a.m.

The Athletics have swung another trade, this one much smaller than the Lester/Cespedes blockbuster:

Trade details
TWINS get: ATHLETICS get:
P Tommy Milone OF Sam Fuld

UPDATE: 10:50 a.m.

The last place Rangers have already traded away Joakim Soria and Jason Frasor. It doesn't sound like they are done either:

Alex Rios would be a fit for a lot of teams in need of a right-handed hitting outfielder, like the Yankees, Royals and Giants, among others. Cotts, as a lefty reliever, would be a fit for any team in the league.

UPDATE: 10:25 a.m.

Think the Athletics are done after the Lester/Cespedes blockbuster? Maybe not:

Stay tuned.

UPDATE: 10:20 a.m.

We have our first blockbuster of the day:

Trade details
ATHLETICS get: RED SOX get:
P Jon Lester
OF Jonny Gomes
Cash considerations		 OF Yoenis Cespedes
Competitive balance pick

Fun!

UPDATE: 9:40 a.m.

The first place Nationals and wild-card Blue Jays are showing some interest in potential second base upgrades, including SS Asdrubal Cabrera of the Indians:

Washington is currently without 3B Ryan Zimmerman following his hamstring strain and they're playing IF Anthony Rendon at his natural third base. Either Cabrera, who has experience at second, or Mets 2B Daniel Murphy would be an upgrade over 2B Danny Espinosa at second base.

UPDATE: 9:30 a.m.

The Astros are shopping RHP Scott Feldman around, but his pricey three-year contract is an obstacle, according to Heyman. Heyman also says the Orioles have inquired about RHP Bartolo Colon, but the Mets are unsure if they want to move him.