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Koppers
KOP

204 hedge funds and large institutions have $738M invested in Koppers in 2026 Q1 according to their latest regulatory filings, with 36 funds opening new positions, 69 increasing their positions, 64 reducing their positions, and 19 closing their positions.

New
Increased
Maintained
Reduced
Closed

267% more call options, than puts

Call options by funds: $2.68M | Put options by funds: $731K

89% more first-time investments, than exits

New positions opened: 36 | Existing positions closed: 19

41% more capital invested

Capital invested by funds: $523M → $738M (+$215M)

6% more funds holding

Funds holding: 192 → 204 (+12)

8% more repeat investments, than reductions

Existing positions increased: 69 | Existing positions reduced: 64

0% more funds holding in top 10

Funds holding in top 10: 1 → 1 (0)

1.22% less ownership

Funds ownership: 98.43% → 97.21% (-1.2%)

Holders
204
Holders Change
+12
Holders Change %
+6.25%
% of All Funds
2.51%
Holding in Top 10
1
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.01%
New
36
Increased
69
Reduced
64
Closed
19
Calls
$2.68M
Puts
$731K
Net Calls
+$1.95M
Net Calls Change
+$1.73M

Top Buyers

1
Two Sigma Investments
Two Sigma Investments
New York
+$7.43M
2
Arrowstreet Capital
Arrowstreet Capital
Massachusetts
+$5.42M
3
Jane Street
Jane Street
New York
+$4.91M
4
SCM
Simcoe Capital Management
New York
+$4.37M
5
American Century Companies
American Century Companies
Missouri
+$3.87M

Top Sellers

1
BlackRock
BlackRock
New York
-$22M
2
Charles Schwab
Charles Schwab
California
-$3.03M
3
IIM
INTECH Investment Management
Florida
-$2.08M
4
SC
Skylands Capital
Wisconsin
-$2M
5
Lazard Asset Management
Lazard Asset Management
New York
-$1.93M
Name Holding Trade Value Shares
Change 		Change in
Stake
BlackRock
1
BlackRock
New York
$118M -$22M -658,405 -18%
Pzena Investment Management
2
Pzena Investment Management
New York
$46.8M +$171K +5,124 +0.4%
Dimensional Fund Advisors
3
Dimensional Fund Advisors
Texas
$46.1M +$596K +17,833 +2%
Fuller & Thaler Asset Management
4
Fuller & Thaler Asset Management
California
$37.9M -$1.18M -35,228 -3%
SCM
5
Simcoe Capital Management
New York
$36.5M +$4.37M +130,840 +16%
LSV Asset Management
6
LSV Asset Management
Illinois
$35.8M -$642K -19,200 -2%
VCM
7
Vanguard Capital Management
Pennsylvania
$32.5M +$28.1M +840,446 New
State Street
8
State Street
Massachusetts
$29.1M -$403K -12,060 -2%
American Century Companies
9
American Century Companies
Missouri
$20.7M +$3.87M +115,679 +28%
VPM
10
Vanguard Portfolio Management
Pennsylvania
$20.5M +$17.7M +530,532 New
Charles Schwab
11
Charles Schwab
California
$18.5M -$3.03M -90,535 -16%
Geode Capital Management
12
Geode Capital Management
Massachusetts
$18.1M +$336K +10,061 +2%
QCI
13
Quaker Capital Investments
Pennsylvania
$17.7M -$569K -17,013 -4%
Two Sigma Investments
14
Two Sigma Investments
New York
$16.2M +$7.43M +222,098 +114%
Ameriprise
15
Ameriprise
Minnesota
$10.1M -$382K -11,418 -4%
Northern Trust
16
Northern Trust
Illinois
$9.48M +$206K +6,157 +3%
DIA
17
Dana Investment Advisors
Wisconsin
$9.1M -$17.9K -534 -0.2%
Bank of New York Mellon
18
Bank of New York Mellon
New York
$8.67M -$237K -7,075 -3%
Morgan Stanley
19
Morgan Stanley
New York
$8.57M +$388K +11,608 +6%
CA
20
CSM Advisors
Pennsylvania
$7.52M +$571K +17,075 +10%
Invesco
21
Invesco
Georgia
$7.18M -$898K -26,847 -13%
Russell Investments Group
22
Russell Investments Group
United Kingdom
$7.09M -$902K -26,988 -13%
Arrowstreet Capital
23
Arrowstreet Capital
Massachusetts
$6.27M +$5.42M +162,072 New
HNB
24
Huntington National Bank
Ohio
$6.08M -$249K -7,452 -5%
BCM
25
Bridgeway Capital Management
Texas
$5.71M +$247K +7,398 +5%
1
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KOP Hedge Fund Activity: Q1 2026 in Review

204 of the 8,126 institutional investors tracked by Wall St. Rank reported a position in Koppers (KOP) for Q1 2026, worth a combined $738M — up 41% from $523M a quarter earlier.

Buyers outnumbered sellers: 36 funds opened new KOP positions and 19 closed out — a net gain of 17 holders — while 69 added to existing stakes and 64 trimmed.

The largest buyer was Two Sigma Investments, adding an estimated $7.43M. The largest seller was BlackRock, cutting an estimated $22M.

  • 204 institutional investors held Koppers (KOP) as of Q1 2026, up from 192 in Q4 2025.
  • Funds reported $738M of Koppers stock for Q1 2026, up 41% quarter-over-quarter.
  • 36 funds opened new Koppers positions in Q1 2026 and 19 closed out, a net change of +17 holders.
  • The largest Koppers buyer in Q1 2026 was Two Sigma Investments, an estimated $7.43M added.
  • The largest Koppers seller in Q1 2026 was BlackRock, an estimated $22M sold.

Based on aggregated 13F filings for Q1 2026.