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Armstrong World Industries

517 hedge funds and large institutions have $8.36B invested in Armstrong World Industries in 2025 Q4 according to their latest regulatory filings, with 82 funds opening new positions, 183 increasing their positions, 195 reducing their positions, and 53 closing their positions.

New
Increased
Maintained
Reduced
Closed

472% more call options, than puts

Call options by funds: $27.7M | Put options by funds: $4.84M

55% more first-time investments, than exits

New positions opened: 82 | Existing positions closed: 53

4% more funds holding

Funds holding: 498517 (+19)

2.06% more ownership

Funds ownership: 99.71%101.78% (+2.1%)

1% less capital invested

Capital invested by funds: $8.45B → $8.36B (-$95.9M)

6% less repeat investments, than reductions

Existing positions increased: 183 | Existing positions reduced: 195

63% less funds holding in top 10

Funds holding in top 10: 83 (-5)

Holders
517
Holders Change
+19
Holders Change %
+3.82%
% of All Funds
6.29%
Holding in Top 10
3
Holding in Top 10 Change
-5
Holding in Top 10 Change %
-62.5%
% of All Funds
0.04%
New
82
Increased
183
Reduced
195
Closed
53
Calls
$27.7M
Puts
$4.84M
Net Calls
+$22.9M
Net Calls Change
-$35M
Name Holding Trade Value Shares
Change
Change in
Stake
Public Sector Pension Investment Board (PSP Investments)
51
Public Sector Pension Investment Board (PSP Investments)
Quebec, Canada
$34.8M -$5.16M -27,016 -13%
Los Angeles Capital Management
52
Los Angeles Capital Management
California
$34.4M -$24.3M -127,318 -41%
RHJA
53
Rice Hall James & Associates
California
$33.1M -$704K -3,688 -2%
HP
54
Harvey Partners
New York
$32.8M +$1M +5,247 +3%
SAM
55
Southernsun Asset Management
Tennessee
$31.9M -$1.52M -7,972 -5%
GACM
56
Global Alpha Capital Management
Quebec, Canada
$30.5M -$2.04M -10,711 -6%
UBS Group
57
UBS Group
Switzerland
$28.3M -$3.23M -16,904 -10%
Allianz Asset Management
58
Allianz Asset Management
Germany
$27.4M +$1.04M +5,474 +4%
BNP Paribas Financial Markets
59
BNP Paribas Financial Markets
France
$27.2M +$3.11M +16,319 +13%
DCM
60
Driehaus Capital Management
Illinois
$26.4M +$6.53M +34,242 +33%
Lord, Abbett & Co
61
Lord, Abbett & Co
New Jersey
$25.5M +$25.5M +133,586 New
AT
62
Arbejdsmarkedets Tillaegspension
$24.4M +$24.4M +127,740 New
JP Morgan Chase
63
JP Morgan Chase
New York
$23.8M +$9.82M +51,465 +71%
William Blair Investment Management
64
William Blair Investment Management
Illinois
$23.3M -$2.35M -12,301 -9%
DCM
65
Discovery Capital Management
Connecticut
$22.5M +$22.5M +118,000 New
Renaissance Technologies
66
Renaissance Technologies
New York
$22.4M +$8.36M +43,800 +60%
AG
67
Algert Global
California
$21.7M +$4.8M +25,146 +28%
Legal & General Group
68
Legal & General Group
United Kingdom
$21.1M -$3.26M -17,079 -13%
First Trust Advisors
69
First Trust Advisors
Illinois
$20.3M -$7.95M -41,666 -28%
Goldman Sachs
70
Goldman Sachs
New York
$20M -$603K -3,158 -3%
RhumbLine Advisers
71
RhumbLine Advisers
Massachusetts
$19.4M +$210K +1,101 +1%
GAM
72
Gotham Asset Management
New York
$19.4M +$2.61M +13,699 +16%
SG Americas Securities
73
SG Americas Securities
New York
$18.8M +$18.8M +98,494 New
Two Sigma Advisers
74
Two Sigma Advisers
New York
$18.7M +$1.79M +9,400 +11%
Royal Bank of Canada
75
Royal Bank of Canada
Ontario, Canada
$18.7M +$1.2M +6,300 +7%