TDG

Transdigm Group Inc$1,231 0.09%
IndustrialsUSCUSIP 893641100· EOD Jul 16, 2026◍ Confluence graph
Tracked 13F Holders
715
+0 QoQ
13F Value (tracked)
$43.6B
Insider Net · 180d
-$187.3M
2↑ 4↓
Recent Filings
15
Smart-money sentimentBearish
BearishBullish
13F funds (latest Q)21 adding · 23 trimming
Insider net (180d)-$187.3M

Price & smart-money activity

$1,231 0.09%5Y +102.6%
$420.95$743.14$1,065$1,388$1,71020212022202320242025202627531212825850862966
Hover for who · click for detailEnd-of-day closing prices52w $1,133 – $1,621
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Ask your agent what changed in TDG

This stock page is the public Follow view. For one current, evidence-backed answer, use capital_change_brief through REST or MCP. It compares tracked 13F changes with qualifying Form 4 activity and cites the SEC evidence.

Copy-paste
curl -H "Authorization: Bearer YOUR_API_KEY" \
  "https://arkolith.com/api/v1/stocks/TDG/capital-change-brief"
Ask your agent
Use Arkolith's capital_change_brief for TDG.
Tell me what changed, whether insider activity
corroborates it, and cite the SEC evidence.

Top institutional holders

715 tracked 13F filers
2 source-reported value rows are withheld because the reported units do not agree with same-security peers. Share counts remain visible and unchanged.
#FundPosition valueSharesLast moveAs ofHistory
1BlackRock, Inc.
$5.3B
4.6M
+7.0%
Added · +303K sh
Q1 2026
2VANGUARD CAPITAL MANAGEMENT LLC
$4.3B
3.7M
New
+3.7M sh
Q1 2026
3VANGUARD PORTFOLIO MANAGEMENT LLC
$3.0B
2.6M
New
+2.6M sh
Q1 2026
4STATE STREET CORP
$2.9B
2.5M
+2.5%
Added · +60K sh
Q1 2026
5PRINCIPAL FINANCIAL GROUP INC
$2.3B
2.0M
−7.0%
Reduced · −153K sh
Q1 2026
6FMR LLC
$1.6B
1.4M
−16%
Reduced · −261K sh
Q1 2026
7GEODE CAPITAL MANAGEMENT, LLC
$1.5B
1.3M
+3.6%
Added · +45K sh
Q1 2026
8Curated Wealth Partners LLC
Withheld
984K
3k×
Added · +983K sh
Q2 2026
9ALTAROCK PARTNERS LP
$1.1B
909K
−6.2%
Reduced · −60K sh
Q1 2026
10JPMORGAN CHASE & CO
$1.0B
898K
−9.6%
Reduced · −95K sh
Q1 2026
11MORGAN STANLEY
$1.0B
894K
+4.9%
Added · +41K sh
Q1 2026
12Soroban Capital Partners LP
$992.3M
856K
+14%
Added · +108K sh
Q1 2026
13NORGES BANK
$1.0B
771K
−8.0%
Reduced · −67K sh
Q4 2025
14PRICE T ROWE ASSOCIATES INC /MD/
$686.9M
593K
−21%
Reduced · −154K sh
Q1 2026
15UBS Group AG
$590.7M
510K
+9.7%
Added · +45K sh
Q1 2026
16WINDACRE PARTNERSHIP LLC
$590.6M
510K
−10.0%
Reduced · −57K sh
Q1 2026
17NORTHERN TRUST CORP
$528.3M
456K
−1.0%
Reduced · −4K sh
Q1 2026
18Stockbridge Partners LLC
$503.3M
434K
~0%
Added · +1 sh
Q1 2026
19PRIMECAP MANAGEMENT CO/CA/
$475.4M
410K
Held
Q1 2026
20CHARLES SCHWAB INVESTMENT MANAGEMENT INC
$475.4M
410K
+3.4%
Added · +14K sh
Q1 2026
21UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AME
$416.8M
360K
+24%
Added · +70K sh
Q1 2026
22Bank of New York Mellon Corp
$371.7M
321K
−0.3%
Reduced · −901 sh
Q1 2026
23VANGUARD FIDUCIARY TRUST CO
$369.7M
319K
New
+319K sh
Q1 2026
24BANK OF AMERICA CORP /DE/
$343.1M
296K
+1.3%
Added · +4K sh
Q1 2026
25Legal & General Group Plc
$327.5M
283K
−8.8%
Reduced · −27K sh
Q1 2026

Holders and values reflect the 13F filers Arkolith currently tracks, not the entire institutional universe. Counts and totals are a floor, not the full institutional ownership.

Fund activity: latest quarter

Opened (NEW)
0
funds
Added
21
funds
Reduced
23
funds
Exited
0
funds

Insider activity (Form 4)

Full insider page →
Buys · 180d
$1.2M
2 insiders
Sells · 180d
$188.5M
4 insiders
Net
-$187.3M
310 P/S txns
Signal
Net Selling
open-market
DateInsiderRoleActionSharesValue
Jul 15, 2026Reiss JoelCo-Chief Operating OfficerOption exercise (M)4K$0
Jul 15, 2026Reiss JoelCo-Chief Operating OfficerSell (S)90$111K
Jul 15, 2026Reiss JoelCo-Chief Operating OfficerSell (S)210$258K
Jul 15, 2026Reiss JoelCo-Chief Operating OfficerSell (S)40$49K
Jul 15, 2026Reiss JoelCo-Chief Operating OfficerSell (S)153$188K
Jul 15, 2026Reiss JoelCo-Chief Operating OfficerSell (S)509$623K
Jul 15, 2026Reiss JoelCo-Chief Operating OfficerSell (S)138$169K
Jul 15, 2026Reiss JoelCo-Chief Operating OfficerSell (S)60$73K
Jul 15, 2026Reiss JoelCo-Chief Operating OfficerSell (S)210$257K
Jul 15, 2026Reiss JoelCo-Chief Operating OfficerSell (S)140$171K
Jul 15, 2026Reiss JoelCo-Chief Operating OfficerSell (S)90$110K
Jul 15, 2026Reiss JoelCo-Chief Operating OfficerSell (S)90$110K

Institutional ownership over time

709 funds+120 since Q3 2024
0355709Q3 2024Q1 2025Q3 2025Q1 2026
funds holding aggregate valuelatest $42.5B · 1 values withheld

Funds that own TDG also own

CompanyCo-held byCombined value
AMAZON.COM INCAMZN364 funds$229.4B
MICROSOFT CORPMSFT363 funds$292.1B
META PLATFORMS INC-CLASS AMETA358 funds$119.3B
NVIDIA CORPNVDA357 funds$406.1B
VISA INC-CLASS A SHARESV357 funds$65.2B
ALPHABET INC-CL AGOOGL354 funds$191.7B
MASTERCARD INC - AMA353 funds$60.9B
APPLE INCAAPL351 funds$307.1B
BROADCOM INCAVGO350 funds$159.3B
JPMORGAN CHASE & COJPM344 funds$74.4B
ALPHABET INC-CL CGOOG343 funds$127.3B
ELI LILLY & COLLY343 funds$88.5B

Ranked by how many of TDG's institutional holders also hold each name, a cross-fund conviction signal. Via the MCP server (ticker.co_held).

Recent filings

15 shown

Browse more

13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for TDG. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes. Every panel above is one call to the Arkolith API & MCP server.