Trade Filings
Managers Stocks Filings Superinvestors
Signals Institutional Buying Institutional Selling Insider Activity 13D & 13G Watch Sector Rotation
Tools Stock Screener Manager Screener Compare Managers Consensus Baskets All Research Tools Data API
Learn & AI Learn Ask the Data AI Agents
News ★ Saved
About About us Methodology Contact Disclaimer
Reader
DATA PLANS

Historical data downloads — coming with accounts.

API GATEWAY

Free read-only JSON access to the site's cached data.

Dark mode

🧭 Guided View
New to markets — prices, yields, YTD, market cap? We explain every term as you browse, in plain English. Same data, with the help built in.

⚡ Expert View
You already know the market. Just the data — clean, fast and compact, with no extra explanations. This is the default view.

Interface language
Security record · archived quarter

WAB

Westinghouse Air Brake Technologies Corporation · Industrials · Railroads

300.35 +1.1% mkt cap $50.73B quote delayed (FMP) · as of Aug 26 16:08 UTC — separate from filing data below

Q2 2026 Q1 2026 Q4 2025 Q3 2025 Q2 2025 Q1 2025 Q4 2024 Q3 2024
162Tracked holders
-1Δ holders
131.09MShares held
$27.98BReported value
+1New positions
−1Exits
Stable Conviction score 47/100 3 quarters of rising tracked shares ●●●○○○ How these are computed → Explain this at the Research Desk →

Momentum inputs (comparable managers): holder breadth -0.6% · share flow +1.8% · net new positions 0.0%formula
Concentrated accumulation — rising shares among fewer holders

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

Ownership over time
QuarterHoldersΔSharesReported valueNewExits
Q2 2026 161 -3 123.89M $33.39B +4 −6
Q1 2026 166 +3 123.42M $30.77B +6 −4
Q4 2025 162 -1 131.09M $27.98B +1 −1
Q3 2025 24 -1 79.07M $15.85B −2
Q2 2025 23 +1 73.36M $15.35B +1
Q1 2025 19 +1 26.16M $4.74B +1
Q4 2024 18 -2 27.71M $5.25B −2
Q3 2024 19 +1 19.50M $3.54B +1
Q2 2024 18 23.81M $3.76B
Holder count
Who holds it · Q4 2025
#ManagerSharesΔ sharesValueTheir weightHeld
1 The Vanguard Group (passive) 19.88M -0.3% $4.24B 0.1% ▼ Trim 3 SEC ↗
2 The Vanguard Group (passive) 19.88M -0.3% $4.24B 0.1% ▼ Trim 3 SEC ↗
3 The Vanguard Group (passive) 19.88M -0.3% $4.24B 0.1% ▼ Trim 3 SEC ↗
4 The Vanguard Group (passive) 19.88M -0.3% $4.24B 0.1% ▼ Trim 3 SEC ↗
5 The Vanguard Group (passive) 19.88M -0.3% $4.24B 0.1% ▼ Trim 3 SEC ↗
6 The Vanguard Group (passive) 19.88M -0.3% $4.24B 0.1% ▼ Trim 3 SEC ↗
7 Fidelity (FMR) 18.91M +15.9% $4.04B 0.2% ▲ Add 3 SEC ↗
8 Fidelity (FMR) 18.91M +15.9% $4.04B 0.2% ▲ Add 3 SEC ↗
9 Fidelity (FMR) 18.91M +15.9% $4.04B 0.2% ▲ Add 3 SEC ↗
10 Fidelity (FMR) 18.91M +15.9% $4.04B 0.2% ▲ Add 3 SEC ↗
11 Fidelity (FMR) 18.91M +15.9% $4.04B 0.2% ▲ Add 3 SEC ↗
12 BlackRock (passive) 13.42M +1.8% $2.87B 0.0% ▲ Add 3 SEC ↗
13 BlackRock (passive) 13.42M +1.8% $2.87B 0.0% ▲ Add 3 SEC ↗
14 BlackRock (passive) 13.42M +1.8% $2.87B 0.0% ▲ Add 3 SEC ↗
15 BlackRock (passive) 13.42M +1.8% $2.87B 0.0% ▲ Add 3 SEC ↗
16 BlackRock (passive) 13.42M +1.8% $2.87B 0.0% ▲ Add 3 SEC ↗
17 BlackRock (passive) 13.42M +1.8% $2.87B 0.0% ▲ Add 3 SEC ↗
18 BlackRock (passive) 13.42M +1.8% $2.87B 0.0% ▲ Add 3 SEC ↗
19 BlackRock (passive) 13.42M +1.8% $2.87B 0.0% ▲ Add 3 SEC ↗
20 BlackRock (passive) 13.42M +1.8% $2.87B 0.0% ▲ Add 3 SEC ↗
21 BlackRock (passive) 13.42M +1.8% $2.87B 0.0% ▲ Add 3 SEC ↗
22 BlackRock (passive) 13.42M +1.8% $2.87B 0.0% ▲ Add 3 SEC ↗
23 BlackRock (passive) 13.42M +1.8% $2.87B 0.0% ▲ Add 3 SEC ↗
24 BlackRock (passive) 13.42M +1.8% $2.87B 0.0% ▲ Add 3 SEC ↗
25 BlackRock (passive) 13.42M +1.8% $2.87B 0.0% ▲ Add 3 SEC ↗
26 BlackRock (passive) 13.42M +1.8% $2.87B 0.0% ▲ Add 3 SEC ↗
27 BlackRock (passive) 13.42M +1.8% $2.87B 0.0% ▲ Add 3 SEC ↗
28 BlackRock (passive) 13.42M +1.8% $2.87B 0.0% ▲ Add 3 SEC ↗
29 BlackRock (passive) 13.42M +1.8% $2.87B 0.0% ▲ Add 3 SEC ↗
30 BlackRock (passive) 13.42M +1.8% $2.87B 0.0% ▲ Add 3 SEC ↗
31 BlackRock (passive) 13.42M +1.8% $2.87B 0.0% ▲ Add 3 SEC ↗
32 BlackRock (passive) 13.42M +1.8% $2.87B 0.0% ▲ Add 3 SEC ↗
33 T. Rowe Price 7.97M +20.3% $1.70B 0.2% ▲ Add 7 SEC ↗
34 T. Rowe Price 7.97M +20.3% $1.70B 0.2% ▲ Add 7 SEC ↗
35 State Street Global Advisors (passive) 7.66M +2.6% $1.63B 0.1% ▲ Add 5 SEC ↗
36 Geode Capital Management (passive) 4.37M +0.9% $928.25M 0.1% ▲ Add 7 SEC ↗
37 Geode Capital Management (passive) 4.37M +0.9% $928.25M 0.1% ▲ Add 7 SEC ↗
38 FIL Ltd 3.66M $780.50M 0.6% n/c 1 SEC ↗
39 FIL Ltd 3.66M $780.50M 0.6% n/c 1 SEC ↗
40 FIL Ltd 3.66M $780.50M 0.6% n/c 1 SEC ↗
41 FIL Ltd 3.66M $780.50M 0.6% n/c 1 SEC ↗
42 Nordea Investment Management Ab 3.07M $659.94M 0.6% n/c 1 SEC ↗
43 Nordea Investment Management Ab 3.07M $659.94M 0.6% n/c 1 SEC ↗
44 Nordea Investment Management Ab 3.07M $659.94M 0.6% n/c 1 SEC ↗
45 Nordea Investment Management Ab 3.07M $659.94M 0.6% n/c 1 SEC ↗
46 Wellington Management 2.67M -19.2% $569.49M 0.1% ▼ Trim 7 SEC ↗
47 Wellington Management 2.67M -19.2% $569.49M 0.1% ▼ Trim 7 SEC ↗
48 Wellington Management 2.67M -19.2% $569.49M 0.1% ▼ Trim 7 SEC ↗
49 Wellington Management 2.67M -19.2% $569.49M 0.1% ▼ Trim 7 SEC ↗
50 Wellington Management 2.67M -19.2% $569.49M 0.1% ▼ Trim 7 SEC ↗
51 Wellington Management 2.67M -19.2% $569.49M 0.1% ▼ Trim 7 SEC ↗
52 Invesco Ltd. 2.19M $467.67M 0.0% n/c 1 SEC ↗
53 Invesco Ltd. 2.19M $467.67M 0.0% n/c 1 SEC ↗
54 Invesco Ltd. 2.19M $467.67M 0.0% n/c 1 SEC ↗
55 Invesco Ltd. 2.19M $467.67M 0.0% n/c 1 SEC ↗
56 Invesco Ltd. 2.19M $467.67M 0.0% n/c 1 SEC ↗
57 Invesco Ltd. 2.19M $467.67M 0.0% n/c 1 SEC ↗
58 Invesco Ltd. 2.19M $467.67M 0.0% n/c 1 SEC ↗
59 Invesco Ltd. 2.19M $467.67M 0.0% n/c 1 SEC ↗
60 Invesco Ltd. 2.19M $467.67M 0.0% n/c 1 SEC ↗
61 Invesco Ltd. 2.19M $467.67M 0.0% n/c 1 SEC ↗
62 Invesco Ltd. 2.19M $467.67M 0.0% n/c 1 SEC ↗
63 Invesco Ltd. 2.19M $467.67M 0.0% n/c 1 SEC ↗
64 Invesco Ltd. 2.19M $467.67M 0.0% n/c 1 SEC ↗
65 Invesco Ltd. 2.19M $467.67M 0.0% n/c 1 SEC ↗
66 Invesco Ltd. 2.19M $467.67M 0.0% n/c 1 SEC ↗
67 Invesco Ltd. 2.19M $467.67M 0.0% n/c 1 SEC ↗
68 Invesco Ltd. 2.19M $467.67M 0.0% n/c 1 SEC ↗
69 Invesco Ltd. 2.19M $467.67M 0.0% n/c 1 SEC ↗
70 Invesco Ltd. 2.19M $467.67M 0.0% n/c 1 SEC ↗
71 Invesco Ltd. 2.19M $467.67M 0.0% n/c 1 SEC ↗
72 Morgan Stanley 2.07M -5.1% $441.45M 0.0% ▼ Trim 2 SEC ↗
73 Morgan Stanley 2.07M -5.1% $441.45M 0.0% ▼ Trim 2 SEC ↗
74 Morgan Stanley 2.07M -5.1% $441.45M 0.0% ▼ Trim 2 SEC ↗
75 Morgan Stanley 2.07M -5.1% $441.45M 0.0% ▼ Trim 2 SEC ↗
76 Morgan Stanley 2.07M -5.1% $441.45M 0.0% ▼ Trim 2 SEC ↗
77 Morgan Stanley 2.07M -5.1% $441.45M 0.0% ▼ Trim 2 SEC ↗
78 Morgan Stanley 2.07M -5.1% $441.45M 0.0% ▼ Trim 2 SEC ↗
79 Morgan Stanley 2.07M -5.1% $441.45M 0.0% ▼ Trim 2 SEC ↗
80 Morgan Stanley 2.07M -5.1% $441.45M 0.0% ▼ Trim 2 SEC ↗
81 Morgan Stanley 2.07M -5.1% $441.45M 0.0% ▼ Trim 2 SEC ↗
82 Morgan Stanley 2.07M -5.1% $441.45M 0.0% ▼ Trim 2 SEC ↗
83 Morgan Stanley 2.07M -5.1% $441.45M 0.0% ▼ Trim 2 SEC ↗
84 Morgan Stanley 2.07M -5.1% $441.45M 0.0% ▼ Trim 2 SEC ↗
85 Morgan Stanley 2.07M -5.1% $441.45M 0.0% ▼ Trim 2 SEC ↗
86 Morgan Stanley 2.07M -5.1% $441.45M 0.0% ▼ Trim 2 SEC ↗
87 Morgan Stanley 2.07M -5.1% $441.45M 0.0% ▼ Trim 2 SEC ↗
88 Boston Partners 2.01M $430.27M 0.4% n/c 1 SEC ↗
89 Boston Partners 2.01M $430.27M 0.4% n/c 1 SEC ↗
90 Boston Partners 2.01M $430.27M 0.4% n/c 1 SEC ↗
91 Boston Partners 2.01M $430.27M 0.4% n/c 1 SEC ↗
92 Norges Bank (passive) 1.92M New $409.04M 0.0% New 1 SEC ↗
93 Northern Trust Corp 1.74M $371.75M 0.0% n/c 1 SEC ↗
94 Northern Trust Corp 1.74M $371.75M 0.0% n/c 1 SEC ↗
95 Northern Trust Corp 1.74M $371.75M 0.0% n/c 1 SEC ↗
96 Northern Trust Corp 1.74M $371.75M 0.0% n/c 1 SEC ↗
97 Northern Trust Corp 1.74M $371.75M 0.0% n/c 1 SEC ↗
98 Northern Trust Corp 1.74M $371.75M 0.0% n/c 1 SEC ↗
99 Northern Trust Corp 1.74M $371.75M 0.0% n/c 1 SEC ↗
100 Northern Trust Corp 1.74M $371.75M 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

Norges Bank $409.04M 0.0%

Exited

Marshall Wace $6.17M was 0.0%

Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 1,145 holders, 154.94M shares, $35.41B 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 21 Mendonca Rogerio

Officer · 2.91K sh · $864,427

Aug 21 Mendonca Rogerio

Officer · 9 sh · $2,666

Aug 20 Fetsko Michael

Officer · 2.96K sh · $868,334

Aug 20 Fetsko Michael

Officer · 288 sh · $84,627

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

Beneficial ownership
Aug 06 SC 13G/A — FMR 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