AI summary pending
View Full Filing (SEC EDGAR)Koppers Holdings Inc
$46.34+0.5%
+$81.6M
Net Activity
+8.00% total shares
Institutions Holding
221
Popularity Rank
#2771
Avg Weight
0.13%
Total Value
$909.0M
Market Cap
$945.6M
221 institutions currently hold KOP, with 107 net buyers and 85 net sellers this quarter.
Institutional Moves (Q2 2026)
Neutral
Based on recent trading activity
Net Selling Institutions
85
Net Buying Institutions
107
Top 5 by Value
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Across its top 20 institutional holders, KOP's holder base skews toward low-concentration, low-turnover investors on average (avg. concentration score 7/100, avg. turnover score 38/100).
KOP ranks #2771 out of 37501 tracked stocks by institutional interest — one of the most closely watched names in our coverage.
KOP is a top-conviction position for Simcoe Capital Management, LLC — at 11.6% of their entire disclosed 13F portfolio, it's one of their largest single bets, not just a passing allocation.
The largest dollar stake in KOP belongs to BlackRock, Inc., but the position matters far more to Simcoe Capital Management, LLC, who has 11.6% of their own portfolio riding on it — a reminder that the biggest holder by size and the holder with the biggest bet aren't always the same fund.
Simcoe Capital Management, LLC has added to its KOP position for two straight quarters, increasing it by $41.6M to reach $63.6M today.
Skylands Capital, LLC has trimmed its KOP position for two straight quarters, cutting it by $2.2M while still holding $7.9K.
KOP is up 0.5% today, and institutions have been net buyers of $81.6M this quarter — today's price move and the underlying institutional flow are pointing the same direction.
KOP reported a net loss of $86.9M over the trailing twelve months.
+$120.8M
Total Buy Value
$61.2M
Total Sell Value
107
Net Buyers
85
Net Sellers
KOP
Q2 2026
Top 5 Institutional Movers
+$27.1M
+$19.1M
+$17.4M
KOP does not currently have enough recent insider (Form 4) trading activity to compute a convergence signal against its 13F institutional flows.
13F data as of 2026-06-30 quarterly filings. Note: many large institutions file close to the 45-day post-quarter deadline, so early-quarter flow figures can shift substantially as more filings arrive.
4
Filings (90d)
$4.54M
Total Est. Value
91K shares
Planned Shares
| Filer | Filing Date | Est. Value |
|---|---|---|
| Lucas Stephen G | 2026-08-12 | $58K |
| Sullivan James A. | 2026-08-11 | $375K |
| Pearce Bradley A | 2026-08-10 | $102K |
| Sullivan James A. | 2026-08-07 | $4.00M |
Form 144 is a planned sale notice, not an executed transaction. Form 144 Tracker。
0
Active 5%+ Holders
| Reporting Person | Type | Filing Date | % of Class |
|---|---|---|---|
| Vanguard Capital Management | 13G/A | 2026-07-31 | 5.0% |
1
Filings (14d)
AI summary pending
View Full Filing (SEC EDGAR)50060P106
The most-added stocks by 13F institutions this quarter
Institutions Holding
6,242
Total reported value
$2.2T
3229 13F institutions increased their position this quarter
Institutions Holding
5,990
Total reported value
$3.6T
3033 13F institutions increased their position this quarter
Institutions Holding
6,153
Total reported value
$1.8T
2971 13F institutions increased their position this quarter
The most widely held stocks tracked across all 13F institutions
Institutions Holding
4,323
Total reported value
$864.3B
Held by 4323 institutions — one of the most-tracked stocks on AlphaSMO
Institutions Holding
4,246
Total reported value
$320.5B
Held by 4246 institutions — one of the most-tracked stocks on AlphaSMO
Institutions Holding
4,231
Total reported value
$346.4B
Held by 4231 institutions — one of the most-tracked stocks on AlphaSMO
Access KOP's institutional ownership data programmatically:
REST API
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