John Klosterman
LB · Redshirt Senior
5'11" · 223 lbs · Defense
© 2026 Mark Selders/Penn State Athletics
Where he came from
- Hometown
- Iowa City, Iowa
- High school
- City
- Previous school
- Iowa State
Recruiting
No recruiting profile matched — he transferred in from Iowa State.
2026 season
No 2026 stats recorded yet.
Season by season
2023tap to read
Made 13 appearances...Notched nine tackles, three solo.
Official bio
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2022-25 • IOWA STATE
Awards:
2025:
Earned Academic All-Big 12 honors.
2024:
Named Academic All-Big 12. 2023: Collected CSC Academic All-District, Academic All-Big 12 and Academic All-Big 12 first-team honors.
Season:
2025:
Appeared in seven games...Made five tackles, four solo.
2024:
Played in four games...Recorded four tackles, three solo, one sack and one fumble recovery.
2023: Made 13 appearances...Notched nine tackles, three solo.
Game-By-Game:
2025:
Arizona (9/27): Assisted on one tackle.
BYU (10/25): Made a solo stop.
Kansas (11/22): Recorded a solo tackle.
at Oklahoma State (11/29): Secured two tackles, both solo.
2024:
North Dakota (8/31): Tallied two tackles, one solo...Added a solo sack and a QB hurry.
at Iowa (9/7): Made a solo tackle.
Arkansas State (9/21): Posted a solo tackle and a fumble recovery.
2023:
at Ohio (9/16): Collected three tackles.
TCU (10/7): Recorded one tackle.
at Cincinnati (10/14): Assisted on one tackle.
at BYU (11/11): Notched two tackles, one solo.
at Kansas State (11/25): Registered two tackles, one solo.
HIGH SCHOOL & PERSONAL
Played at City High School for head coach Mitchell Moore...Helped City to go 10-2 and reach the state semifinals...Named third-team All-State as a senior after recording 59 tackles, 16 tackles for loss and six sacks...Also played baseball, earning All-Conference honors...Selected IFCA Academic All-State in 2021...Majoring in organizational leadership.