OK now I get it.

This will copy from sheet1 to sheet2.

Sub AAA()
Dim FilterRange As Range
Dim AssayRange As Range
Dim TableRange As Range
Dim Off As Long
Dim TargetSh As Worksheet
Dim InputSh As Worksheet
Dim AssayArr()

Set InputSh = Worksheets("Sheet1")
Set TargetSh = Worksheets("Sheet2")
LastRow = InputSh.Range("B" & Rows.Count).End(xlUp).Row
Set FilterRange = InputSh.Range("B1:B" & LastRow)
Set TableRange = InputSh.Range("A1", InputSh.Range("D" & LastRow))
FilterRange.AdvancedFilter Action:=xlFilterInPlace, Unique:=True
Set AssayRange = FilterRange.SpecialCells(xlCellTypeVisible)

InputSh.ShowAllData

ReDim AssayArr(AssayRange.Cells.Count)
For Each c In AssayRange.Cells
COunter = COunter + 1
AssayArr(COunter) = c.Value
Next

For x = 2 To UBound(AssayArr)
TableRange.AutoFilter Field:=2, Criteria1:=AssayArr(x)
TableRange.SpecialCells(xlCellTypeVisible).Copy
TargetSh.Range("A1").Offset(0, Off)
Off = Off + 4
Next
TableRange.AutoFilter
End Sub

Best regards,
Per

"genehunter" skrev i meddelelsen
...
Hi, I am sorry I made a mistake when mentioning the filtering on Col C,
its
actually B. So what I am trying to do is to get all the 4 columns A, B, C
and
D for each unique value in Col B to be pasted to the next 4 columns (i.e.
E
thru H) and so on.
Since I am applying filter, I am pasting to another sheet at the moment.
Here is an example input and output.
INPUT:
WELL_POSITION ASSAY_ID Alpha SAMPLE_ID
A01 Statin1 C 1
A02 Statin1 C 2
A03 Statin1 C 3
A04 Statin1 C 4
A05 Statin1 CT 5
A06 Statin1 C 6
A07 Statin1 CT 7
A01 Statin2 C 1
A02 Statin2 C 2
A03 Statin2 C 3
A04 Statin2 C 4
A05 Statin2 C 5
A06 Statin2 TC 6
A07 Statin2 C 7
A01 Statin3 G 1
A02 Statin3 G 2
A03 Statin3 G 3
A04 Statin3 G 4
A05 Statin3 G 5
A06 Statin3 G 6
A07 Statin3 AG 7

Output:

WELL_POSITION ASSAY_ID Alpha SAMPLE_ID WELL_POSITION ASSAY_ID Alpha
SAMPLE_ID WELL_POSITION ASSAY_ID Alpha SAMPLE_ID
A01 Statin1 C 1 A01 Statin2 C 1 A01 Statin3 G 1
A02 Statin1 C 2 A02 Statin2 C 2 A02 Statin3 G 2
A03 Statin1 C 3 A03 Statin2 C 3 A03 Statin3 G 3
A04 Statin1 C 4 A04 Statin2 C 4 A04 Statin3 G 4
A05 Statin1 CT 5 A05 Statin2 C 5 A05 Statin3 G 5
A06 Statin1 C 6 A06 Statin2 TC 6 A06 Statin3 G 6
A07 Statin1 CT 7 A07 Statin2 C 7 A07 Statin3 AG 7