Security Snapshot

ARMSTRONG WORLD INDUSTRIES INC - Common Stock (AWI) Institutional Ownership

CUSIP: 04247X102

13F Institutional Holders and Ownership History from Q1 2014 to Q3 2026

13F reference period

Q3 2026

Institutions Reporting

282

Shares (Excl. Options)

20.35MFull value: 20,353,317 · shares · 30 Sep 2026

Price

$161.93

The headline uses the Q3 2026 reference period after its reporting deadline. Available reports may still be incomplete or amended.

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Latest holder snapshot 5 signals
Portfolio coverage rank
0%
Share change
-79,172
Value change
-$12,513,316
Number of holders
282
Issuer context Names, identifiers, and filing context for this profile. 3 identity fields
Shares outstanding
43,450,667
SEC-reported price per share
$163.47
Insider filing price
$163.47
13F Shares, Excluding Options vs Price
13F Value, Excluding Options
Total Investors
Filing notes and source

Key facts

  • AWI - ARMSTRONG WORLD INDUSTRIES INC - Common Stock is tracked under CUSIP 04247X102.
  • 282 institutions reported positions in Q3 2026.
  • 4 significant owners is listed from Schedule 13D/13G reporting.

Change

  • Holder count moved from 477 to 282 between Q2 2026 and Q3 2026.
  • SEC-reported value moved from
    $6.94BFull value: $6,941,364,457 · USD · 30 Jun 2026
    to
    $3.3BFull value: $3,296,454,460 · USD · 30 Sep 2026
    .

Research use

  • You can quickly see who holds this security, then open quarter and manager detail pages for full evidence.
  • 13F and Schedule 13D/13G sections are kept together so you can cross-check institutional and beneficial ownership context.

Evidence

Source: SEC Form 13F

Latest holder context comes from 282 institutions filings for Q3 2026.

Open SEC evidence

Security key

04247X102

13F reference period

Q3 2026

13F holders

282

13D/G owners

4

CIK / CUSIP context first

13D/G owners

Significant owners

Large-stake holder rows connected to Schedule 13D/G evidence.

Rows
4
Security
AWI
Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
BlackRock, Inc. 12% $813,877,193 5,010,325 BlackRock, Inc. 30 Jun 2025
VANGUARD CAPITAL MANAGEMENT LLC 5.2% $370,555,931 2,248,519 Vanguard Capital Management 31 Mar 2026
VANGUARD PORTFOLIO MANAGEMENT LLC 5.2% $369,498,904 2,242,105 Vanguard Portfolio Management 31 Mar 2026
Capital International Investors 1.8% $128,892,058 782,112 Capital International Investors 31 Mar 2026
As of 30 Sep 2026, 282 institutional investors reported holding
20.35MFull value: 20,353,317 · shares · 30 Sep 2026
shares of ARMSTRONG WORLD INDUSTRIES INC - Common Stock (AWI). This represents 47% of the company’s total
43.45MFull value: 43,450,667 · shares · Stored outstanding share count
outstanding shares.

13F concentration

Top 25 institutional shareholders

Largest 13F positions for this security by reported shares and value.

Top holder share
40%
Institution Ownership % Shares Held Share Change % Portfolio % Holdings Value
VANGUARD PORTFOLIO MANAGEMENT LLC 5% 2,162,756 -2.6% 0.02% $350,215,079
VANGUARD CAPITAL MANAGEMENT LLC 4.3% 1,882,726 -2.1% 0.01% $304,869,821
STATE STREET CORP 3.3% 1,436,496 -0.14% 0.01% $232,611,797
GEODE CAPITAL MANAGEMENT, LLC 2.4% 1,031,156 -1.2% 0.01% $167,006,567
Egerton Capital (UK) LLP 2.3% 993,344 +7.3% 1.6% $160,852,194
FULLER & THALER ASSET MANAGEMENT, INC. 2.3% 988,340 -10% 0.47% $160,041,899
River Road Asset Management, LLC 2.1% 898,175 +29% 1.7% $145,441,478
DIMENSIONAL FUND ADVISORS LP 2% 884,120 +1.6% 0.03% $143,168,950
Capital International Investors 2% 871,587 +9.7% 0.03% $141,136,083
TIMUCUAN ASSET MANAGEMENT INC/FL 1.8% 782,583 -0.2% 4.7% $126,723,660
YACKTMAN ASSET MANAGEMENT LP 1.7% 759,082 +0.55% 1.5% $122,918,148
NEUBERGER BERMAN GROUP LLC 1.5% 664,900 -13% 0.07% $107,667,190
MORGAN STANLEY 1.3% 543,527 +29% 0% $88,013,568
Van Berkom & Associates Inc. 1% 437,275 -5.9% 2.5% $70,808,000
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.98% 424,977 -6.2% 0.03% $68,816,526
COOKE & BIELER LP 0.9% 392,406 +71% 1% $63,542,304
Qube Research & Technologies Ltd 0.75% 327,705 -25% 0.05% $53,065,271
VANGUARD FIDUCIARY TRUST CO 0.62% 269,011 -0.84% 0.01% $43,560,951
Quantinno Capital Management LP 0.59% 255,811 +291% 0.04% $41,423,572
AMERICAN CENTURY COMPANIES INC 0.53% 230,339 +11% 0.02% $37,298,795
Public Sector Pension Investment Board 0.49% 212,797 +20% 0.08% $35,150,872
Global Alpha Capital Management Ltd. 0.49% 210,912 +21% 2.2% $34,152,980
Invesco Ltd. 0.45% 197,122 -55% 0% $31,919,967
SOUTHERNSUN ASSET MANAGEMENT, LLC 0.45% 194,408 -3.2% 4.8% $31,480,487
MARSHALL WACE, LLP 0.38% 166,022 +2155% 0.03% $26,883,943

Quarter history

Institutional holders across reporting periods

Holder count, reported shares/value, and median price by quarter.

Periods
51
Headline period
Q3 2026
Rows shown
1-25 of 51
Period 13F Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2026 Q3 20,353,317 $3,296,454,460 -$12,513,316 $161.93 282
2026 Q2 43,266,614 $6,941,364,457 +$69,386,858 $160.42 477
2026 Q1 42,826,852 $7,051,307,182 -$221,277,728 $164.80 475
2025 Q4 43,712,496 $8,356,372,359 +$352,681,859 $191.10 518
2025 Q3 43,130,460 $8,452,518,935 -$101,731,634 $196.01 497
2025 Q2 43,659,927 $7,101,565,869 +$71,137,263 $162.44 418
2025 Q1 43,269,753 $6,094,758,026 -$126,325,070 $140.88 393
2024 Q4 44,571,907 $6,299,601,673 +$54,268,674 $141.33 365
2024 Q3 43,637,847 $5,736,074,773 -$109,834,101 $131.43 342
2024 Q2 44,435,919 $5,031,832,552 -$24,459,370 $113.24 323
2024 Q1 44,631,698 $5,543,899,885 -$405,633,290 $124.22 322
2023 Q4 48,041,888 $4,723,432,404 +$374,696,859 $98.32 279
2023 Q3 44,603,405 $3,211,351,385 -$4,672,335 $72.00 252
2023 Q2 44,611,902 $3,277,149,853 -$52,049,536 $73.46 257
2023 Q1 45,453,661 $3,237,979,831 -$46,802,961 $71.24 265
2022 Q4 46,215,570 $3,170,098,302 -$82,992,749 $68.59 260
2022 Q3 46,723,475 $3,701,838,184 -$53,924,881 $79.23 245
2022 Q2 47,392,378 $3,552,751,158 +$8,460,948 $74.96 246
2022 Q1 47,267,589 $4,255,573,526 +$13,814,401 $90.01 256
2021 Q4 46,982,289 $5,455,009,933 -$146,224,364 $116.12 258
2021 Q3 48,017,609 $4,585,144,348 -$79,320,753 $95.47 238
2021 Q2 48,695,056 $5,223,153,793 -$26,953,528 $107.26 236
2021 Q1 49,041,577 $4,418,262,675 +$21,390,551 $90.09 238
2020 Q4 48,908,954 $3,638,386,669 -$26,067,574 $74.39 236
2020 Q3 49,116,576 $3,379,706,996 -$4,346,526 $68.81 229
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