Manga ended later

Recent
https://en.wikipedia.org/wiki/Pet_Shop_of_Horrors

https://en.wikipedia.org/wiki/The_Knight_in_the_Area

https://en.wikipedia.org/wiki/Shigurui - anime ended 2007, manga 2010.

https://myanimelist.net/manga/17989/Softenni - ended a year later in 2012, year conflicts with the one on WP.

https://en.wikipedia.org/wiki/Deadman_Wonderland - anime ended 2011, manga 2013.

https://en.wikipedia.org/wiki/Mudazumo_Naki_Kaikaku - (3) OVAs ended in 2010, manga 2015.

https://en.wikipedia.org/w/index.php?title=Baby_Steps - ended 2 years later in 2017.

https://myanimelist.net/manga/56721/Ginga_e_Kickoff - five months later.

https://en.wikipedia.org/w/index.php?title=Scorching_Ping_Pong_Girls - manga ended in 2019, anime 2016.

Tiny difference
https://en.wikipedia.org/wiki/Future_Diary - "Data Migration" OVA ends a month before its manga.

More than 10 years ago
https://en.wikipedia.org/wiki/Angel_Sanctuary - https://myanimelist.net/manga/448/Tenshi_Kinryouku - anime ended 2000, manga 2001, 1.5 hours.

http://en.wikipedia.org/wiki/Narutaru (h) - manga October 25, 2003, anime September 29, 2003.

https://en.wikipedia.org/wiki/Legendary_Gambler_Tetsuya - anime ended 2001, manga 2004.

https://en.wikipedia.org/wiki/Hungry_Heart:_Wild_Striker - ended a year later than anime in 2004.

https://en.wikipedia.org/wiki/Clean_Freak!_Aoyama_kun - few months later in 2008.

https://en.wikipedia.org/w/index.php?title=Over_Drive_(manga) - manga ended a year later than anime in 2008.

https://en.wikipedia.org/wiki/Demon_Prince_Enma - anime of original manga ended after the latter, but manga continued and finished 2 years after anime in 2009.

https://en.wikipedia.org/w/index.php?title=Eyeshield_21 - manga ended a year later than anime in 2009.

https://en.wikipedia.org/wiki/Dan_Doh!! - anime ended a year before latest manga.

https://en.wikipedia.org/w/index.php?title=Forza!_Hidemaru - ended eight months later.

20 years ago
https://en.wikipedia.org/w/index.php?title=Ping-Pong_Club - anime ended a year before the manga in 1995.

https://en.wikipedia.org/wiki/Ganba!_Fly_High - manga ended 2000, anime 1997.

https://en.wikipedia.org/wiki/Grander_Musashi - manga ended 2000, anime 1998.

https://en.wikipedia.org/wiki/Kare_Kano - manga ended 2005, anime 1999.

https://en.wikipedia.org/wiki/Phantom_Thief_Jeanne - manga ended five months after anime

30 years ago
https://en.wikipedia.org/w/index.php?title=Hikari_no_Densetsu - manga ended two years later than anime in 1988.

https://en.wikipedia.org/wiki/Fisherman_Sanpei - latest manga ended 2010 (film 2009), with the original in 1983, anime a year before (eps available with subs, s).

https://en.wikipedia.org/wiki/Ganbare,_Kickers! - ended two years later.