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Security record · archived quarter

KOP

Koppers Holdings Inc. · Basic Materials · Chemicals - Specialty

41.70 -2.8% mkt cap $788.61M quote delayed (FMP) · as of Oct 20 21:08 UTC · separate from filing data below

Q3 2026 Q2 2026 Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024
79Tracked holders
+1Δ holders
12.18MShares held
$329.82MReported value
+1New positions
−0Exits
Stable Conviction score 41/100 How these are computed → Explain this at the Research Desk →

Momentum inputs (comparable managers): holder breadth +1.3% · share flow -0.2% · net new positions +1.3% · formula
Ownership fragmentation: more holders, smaller aggregate stake

All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q4 2025

Ownership over time
QuarterHoldersΔSharesReported valueNewExits
Q3 2026 1 0 4.57K $202,354 n/a n/a
Q2 2026 80 +2 11.62M $521.50M +7 −5
Q1 2026 81 +2 11.47M $443.39M +8 −6
Q4 2025 79 +1 12.18M $329.82M +1 n/a
Q3 2025 16 0 7.38M $206.56M n/a n/a
Q2 2025 13 +1 7.56M $243.04M +2 −1
Q1 2025 9 -1 1.88M $52.72M n/a −1
Q4 2024 10 0 2.03M $65.62M n/a n/a
Q3 2024 9 +1 1.14M $41.48M +1 n/a
Q2 2024 8 n/a 1.02M $37.65M n/a n/a
Holder count
Who holds it · Q4 2025
#ManagerSharesΔ sharesValueTheir weightHeld
1 BlackRock ✦ (passive) 3.70M +1.6% $100.29M 0.0% ▲ Add 3 SEC ↗ ×12
2 The Vanguard Group ✦ (passive) 1.54M 0.0% $41.70M 0.0% ▲ Add 3 SEC ↗ ×5
3 Dimensional Fund Advisors Lp 1.17M n/a $31.78M 0.0% n/c 1 SEC ↗ ×4
4 State Street Global Advisors ✦ (passive) 764.32K -0.7% $20.70M 0.0% ▼ Trim 5 SEC ↗
5 Charles Schwab Investment… 568.41K n/a $15.39M 0.0% n/c 1 SEC ↗
6 Geode Capital Management ✦ (passive) 457.55K -1.8% $12.39M 0.0% ▼ Trim 7 SEC ↗ ×2
7 American Century Companies Inc 419.32K n/a $11.36M 0.0% n/c 1 SEC ↗
8 Ameriprise Financial Inc 273.21K n/a $7.40M 0.0% n/c 1 SEC ↗ ×2
9 Northern Trust Corp 239.01K n/a $6.47M 0.0% n/c 1 SEC ↗ ×7
10 Bank of New York Mellon Corp 231.33K n/a $6.26M 0.0% n/c 1 SEC ↗ ×6
11 Invesco Ltd. 212.43K n/a $5.75M 0.0% n/c 1 SEC ↗ ×5
12 Russell Investments Group, Ltd. 210.21K n/a $5.69M 0.0% n/c 1 SEC ↗ ×12
13 Morgan Stanley ✦ 209.93K -4.7% $5.68M 0.0% ▼ Trim 2 SEC ↗ ×7
14 Two Sigma Investments ✦ 195.44K +11.2% $5.29M 0.0% ▲ Add 7 SEC ↗
15 Goldman Sachs Group ✦ 136.08K +76.3% $3.69M 0.0% ▲ Add 2 SEC ↗ ×2
16 Universal- Beteiligungs- und… 129.82K n/a $3.52M 0.0% n/c 1 SEC ↗
17 Principal Financial Group Inc 116.47K n/a $3.15M 0.0% n/c 1 SEC ↗ ×2
18 Bank Of America Corp /De/ 101.52K n/a $2.75M 0.0% n/c 1 SEC ↗ ×7
19 AQR Capital Management ✦ 94.99K -4.5% $2.57M 0.0% ▼ Trim 7 SEC ↗ ×5
20 Lazard Asset Management Llc 79.03K n/a $2.14M 0.0% n/c 1 SEC ↗
21 JPMorgan Chase ✦ 69.95K -44.8% $1.89M 0.0% ▼ Trim 2 SEC ↗ ×4
22 Federated Hermes, Inc. 68.13K n/a $1.84M 0.0% n/c 1 SEC ↗ ×4
23 Nuveen, LLC 63.57K n/a $1.72M 0.0% n/c 1 SEC ↗ ×2
24 First Trust Advisors Lp 62.36K n/a $1.69M 0.0% n/c 1 SEC ↗
25 Rhumbline Advisers 57.51K n/a $1.56M 0.0% n/c 1 SEC ↗
26 UBS AM, a distinct business unit of… 54.07K n/a $1.46M 0.0% n/c 1 SEC ↗ ×5
27 Citigroup Inc 52.25K n/a $1.41M 0.0% n/c 1 SEC ↗ ×2
28 Squarepoint Ops LLC 48.47K n/a $1.31M 0.0% n/c 1 SEC ↗
29 Legal & General Group Plc 48.38K n/a $1.31M 0.0% n/c 1 SEC ↗ ×3
30 Hrt Financial Lp 44.53K n/a $1.21M 0.0% n/c 1 SEC ↗
31 Swiss National Bank 39.30K n/a $1.06M 0.0% n/c 1 SEC ↗
32 Citadel Advisors ✦ 38.24K New $1.04M 0.0% New 1 SEC ↗
33 Victory Capital Management Inc 38.15K n/a $1.03M 0.0% n/c 1 SEC ↗
34 Nomura Asset Management… 37.70K n/a $1.02M 0.0% n/c 1 SEC ↗
35 Sei Investments Co 37.32K n/a $1.01M 0.0% n/c 1 SEC ↗ ×2
36 UBS Group AG 36.04K n/a $976,017 0.0% n/c 1 SEC ↗ ×3
37 Barclays Plc 35.94K n/a $973,228 0.0% n/c 1 SEC ↗ ×2
38 Point72 Asset Management ✦ 35.12K +99.3% $950,941 0.0% ▲ Add 3 SEC ↗
39 GAMCO Investors ✦ 30.71K -26.4% $831,735 0.0% ▼ Trim 3 SEC ↗
40 Voya Investment Management Llc 30.55K n/a $827,402 0.0% n/c 1 SEC ↗
41 Millennium Management ✦ 29.56K -59.6% $800,458 0.0% ▼ Trim 7 SEC ↗
42 Royal Bank Of Canada 28.31K n/a $767,000 0.0% n/c 1 SEC ↗ ×5
43 Boston Partners 22.08K n/a $597,930 0.0% n/c 1 SEC ↗
44 Wells Fargo & Company/Mn 21.38K n/a $579,050 0.0% n/c 1 SEC ↗ ×3
45 T. Rowe Price ✦ 20.98K +0.9% $569,000 0.0% ▲ Add 7 SEC ↗
46 D. E. Shaw & Co. ✦ 20.41K +23.8% $552,567 0.0% ▲ Add 7 SEC ↗
47 Mariner, LLC 24.02K n/a $526,522 0.0% n/c 1 SEC ↗ ×2
48 Prudential Financial Inc 19.16K n/a $518,826 0.0% n/c 1 SEC ↗
49 California State Teachers… 18.85K n/a $510,404 0.0% n/c 1 SEC ↗
50 Alliancebernstein L.P. 17.62K n/a $477,231 0.0% n/c 1 SEC ↗
51 State Of Wisconsin Investment Board 17.42K n/a $471,679 0.0% n/c 1 SEC ↗
52 Creative Planning 16.26K n/a $440,267 0.0% n/c 1 SEC ↗
53 Quantinno Capital Management LP 15.86K n/a $429,518 0.0% n/c 1 SEC ↗
54 Deutsche Bank Ag\ 14.05K n/a $380,393 0.0% n/c 1 SEC ↗
55 Franklin Resources Inc 13.36K n/a $361,816 0.0% n/c 1 SEC ↗ ×3
56 Allspring Global Investments… 12.28K n/a $332,542 0.0% n/c 1 SEC ↗
57 Raymond James Financial Inc 10.57K n/a $286,278 0.0% n/c 1 SEC ↗ ×2
58 Susquehanna International Group, Llp 10.14K n/a $274,537 0.0% n/c 1 SEC ↗
59 Janus Henderson Group Plc 9.21K n/a $249,583 0.0% n/c 1 SEC ↗
60 Zurcher Kantonalbank (Zurich… 9.07K n/a $245,724 0.0% n/c 1 SEC ↗
61 MIRAE ASSET GLOBAL ETFS HOLDINGS… 8.80K n/a $238,331 0.0% n/c 1 SEC ↗
62 Bnp Paribas Financial Markets 7.95K n/a $215,340 0.0% n/c 1 SEC ↗
63 Renaissance Technologies ✦ 7.90K -71.1% $213,932 0.0% ▼ Trim 7 SEC ↗
64 New York State Common Retirement… 6.17K n/a $167,084 0.0% n/c 1 SEC ↗
65 Pnc Financial Services Group, Inc. 5.28K n/a $143,010 0.0% n/c 1 SEC ↗ ×4
66 Cwm, Llc 3.03K n/a $82,000 0.0% n/c 1 SEC ↗
67 Fidelity (FMR) ✦ 2.79K -95.2% $75,576 0.0% ▼ Trim 3 SEC ↗ ×2
68 Ensign Peak Advisors, Inc 2.17K n/a $58,764 0.0% n/c 1 SEC ↗
69 Canada Pension Plan Investment Board 1.80K n/a $48,744 0.0% n/c 1 SEC ↗
70 Us Bancorp \De\ 556 n/a $15,056 0.0% n/c 1 SEC ↗
71 Danske Bank A/S 500 n/a $13,540 0.0% n/c 1 SEC ↗
72 BNP Paribas Asset Management… 497 n/a $13,000 0.0% n/c 1 SEC ↗
73 Osaic Holdings, Inc. 339 n/a $9,180 0.0% n/c 1 SEC ↗
74 Simplex Trading, Llc 275 n/a $7,446 0.0% n/c 1 SEC ↗
75 Rockefeller Capital Management L.P. 224 n/a $6,075 0.0% n/c 1 SEC ↗ ×2
76 Jones Financial Companies Lllp 221 n/a $5,984 0.0% n/c 1 SEC ↗
77 Fifth Third Bancorp 219 n/a $5,931 0.0% n/c 1 SEC ↗
78 Northwestern Mutual Wealth… 80 n/a $2,166 0.0% n/c 1 SEC ↗
79 Optiver Holding B.V. 72 n/a $1,950 0.0% n/c 1 SEC ↗

“Their weight” = the position's share of that manager's reported 13F equity value: the conviction measure. ✦ = curated manager.

New buyers

Citadel Advisors $1.04M 0.0%

Exited

No tracked exits this quarter.

Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 203 holders, 19.00M shares, $678.99M reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.

Frequently co-owned

What else this security's tracked holders most often hold: shared-ownership counts, not fundamental relationships.

Insider transactions

Open-market purchases (P)

No open-market insider purchases in our coverage window.

Open-market sales (S)

Aug 31 BALL M LEROY

Officer, Director · 4.00K sh · $183,840

Aug 19 BALL M LEROY

Officer, Director · 3.00K sh · $137,520

Aug 12 Lucas Stephen G

Officer · 1.31K sh · $58,271

Aug 11 Sullivan James A.

Officer · 7.50K sh · $375,000

Aug 10 Pearce Bradley A

Officer · 2.00K sh · $102,020

Aug 07 Sullivan James A.

Officer · 79.90K sh · $4.00M

Aug 07 Sullivan James A.

Officer · 100 sh · $5,122

Awards, exercises and tax withholding are never counted as buys or sales here. Methodology

Beneficial ownership
Oct 19 SC 13G/A: PZENA INVESTMENT MANAGEMENT LLC

View original SEC filing ↗

Oct 08 SC 13G/A: DIMENSIONAL FUND ADVISORS LP

View original SEC filing ↗

Jul 31 SC 13G/A: VANGUARD CAPITAL MANAGEMENT LLC

View original SEC filing ↗

Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR. Reporting period: Q4 2025 · Methodology · Get this via the API