PLS-00103: Encountered the symbol "end-of-file" when expecting one of the f

Question

I'm trying to follow an example pl/sql program to select from one table and insert into a second table in a LOOP.
I get a syntax error which I can't figure out
Line # = 67 Column # = 0 Error Text = PLS-00103: Encountered the symbol "end-of-file" when expecting one of the following:
begin case declare end exception exit for goto if loop mod
null pragma raise return select update while with
<an identifier> <a double-quoted delimited-identifier>
<a bind variable> << close current delete fetch lock insert
open rollback savepoint set sql execute commit forall merge
pipe
What is the cause?
IS
BEGIN
declare
v_pk1 bb_bb60_stats.pk1%TYPE;
v_event_type bb_bb60_stats.event_type%TYPE;
v_user_pk1 bb_bb60_stats.user_pk1%TYPE;
v_course_pk1 bb_bb60_stats.course_pk1%TYPE;
v_group_pk1 bb_bb60_stats.group_pk1%TYPE;
v_forum_pk1 bb_bb60_stats.forum_pk1%TYPE;
v_internal_handle bb_bb60_stats.internal_handle%TYPE;
v_content_pk1 bb_bb60_stats.content_pk1%TYPE;
v_data bb_bb60_stats.data%TYPE;
v_timestamp bb_bb60_stats.timestamp%TYPE;
v_status bb_bb60_stats.status%TYPE;
v_session_id bb_bb60_stats.session_id%TYPE;
v_messages bb_bb60_stats.messages%TYPE;
INSERT_COUNT NUMBER := 1;
CURSOR curs_aa
IS
SELECT * from bb_bb60_stats.activity_accumulator ;
BEGIN
OPEN curs_aa;
LOOP
FETCH curs_aa into
v_pk1,
v_event_type,
v_user_pk1 ,
v_course_pk1,
v_group_pk1,
v_forum_pk1,
v_internal_handle,
v_content_pk1 ,
v_data,
v_timestamp ,
v_status ,
v_session_id ,
v_messages;
INSERT INTO csuh_custom.aa_partitioned
VALUES
v_pk1,
v_event_type,
v_user_pk1 ,
v_course_pk1,
v_group_pk1,
v_forum_pk1,
v_internal_handle,
v_content_pk1,
v_data,
v_timestamp,
v_status,
v_session_id,
v_messages
-- commit after every 100 inserts to avoid large rollback segments
IF INSERT_COUNT = 25000 THEN
COMMIT;
INSERT_COUNT := 1;
ELSE
INSERT_COUNT := INSERT_COUNT + 1;
END IF;
END LOOP;
CLOSE curs_aa;

Answer 1

When I add the END;
I get
Line # = 66 Column # = 0 Error Text = PLS-00103: Encountered the symbol "end-of-file" when expecting one of the following:
begin case declare end exception exit for goto if loop mod
null pragma raise return select update while with
<an identifier> <a double-quoted delimited-identifier>
<a bind variable> << close current delete fetch lock insert
open rollback savepoint set sql execute commit forall merge
pipe