CDIO

Cardio Diagnostics Holdings Cross-source read$1.96 5.38%
Health CareCUSIP 14159C202· EOD Sep 8, 2026

Among active 13F managers last quarter, 2 opened and 1 added, while none reduced or exited; the largest holder to move was Citadel Advisors LLC (new position). No open-market insider trades in the last 180 days.

Tracked 13F holders
15
4 in Q2 2026 filings
13F value (tracked)
$460K
Smart-money readBullish
Net sellingNet buying
Funds · active managers, latest 13F
3 adding · 0 trimming
Insiders · Form 4 open-market, 180d
0 buying · 0 selling
US House · STOCK Act, 180d
0 buying · 0 selling

Funds lean in and no leg opposes.

Price & smart-money activity

$1.96 5.38%5Y -99.3%
$1.09$82.53$163.96$245.39$326.82202220232024202520267632333
Hover for who · click for detailEnd-of-day closing prices52w $1.05 – $6.55

Who owns CDIO?

15 tracked 13F filers · ranked by shares held

15 tracked 13F filers disclose a position in CDIO as of the latest SEC 13F filings, a combined $460K in reported value. 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.

#FundSharesPosition valueLast moveAs ofHistory
1Jane Street Group, LLC81K
$159K
New
+81K sh
Q1 2026
2BlackRock, Inc.35K
$76K
Held
Q2 2026
3Geode Capital Management, LLC26K
$57K
−18%
Reduced · −6K sh
Q2 2026
4Vanguard Capital Management LLC20K
$44K
Held
Q2 2026
5Citadel Advisors LLC19K
$42K
New
+19K sh
Q2 2026
6Renaissance Technologies LLC15K
$30K
New
+15K sh
Q1 2026
7State Street Corp10K
$22K
New
+10K sh
Q2 2026
8UBS Group AG10K
$19K
10×
Added · +9K sh
Q1 2026
9Vanguard Fiduciary Trust Co3K
$6K
−29%
Reduced · −1K sh
Q2 2026
10Tower Research Capital LLC (TRC)2K
$4K
+182%
Added · +1K sh
Q1 2026
11Morgan Stanley100
$195
Held
Q1 2026
12SHP Wealth Management16
$35
Held
Q2 2026
13Osaic Holdings, Inc.16
$31
Held
Q1 2026
14SBI Securities Co., Ltd.10
$22
Held
Q2 2026
15Citigroup Inc1
$2
−96%
Reduced · −25 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.

Is CDIO being bought or sold by institutions?

Last quarter, 2 funds opened a new position in CDIO and 1 added to an existing one, while none reduced or exited. Based on 13F filings from active, signal-eligible managers (passive index funds and other mechanical holders are excluded from this count).

Opened
2
funds took a first position
Added
1
added to an existing position
Biggest moves · ranked by size of the change, positions above a floor

Funds that own CDIO also own

CompanyCo-held byTheir position there
Nvidia CorpNVDA4 funds$3.3B
Apple IncAAPL4 funds$3.1B
Micron Technology IncMU4 funds$1.6B
Microsoft CorpMSFT4 funds$1.6B
Broadcom IncAVGO4 funds$1.4B
Alphabet Inc-CL AGOOGL4 funds$1.4B
Palantir Technologies Inc-APLTR4 funds$1.3B
Warner Bros Discovery IncWBD4 funds$1.3B
Eli Lilly & CoLLY4 funds$1.2B
United Therapeutics CorpUTHR4 funds$1.2B
Alphabet Inc-CL CGOOG4 funds$1.1B
Chevron CorpCVX4 funds$1.0B

Ranked by how many of CDIO's tracked holders also hold each name. The last column is those co-holders' combined reported position in that name, not in CDIO.

Insider activity (Form 4)

Full insider page →
Net · 180d
$0
0 open-market transactions
DateInsiderRoleActionSharesValue
Sep 6, 2024Dogan MeeshanthiniChief Executive Officer, DirectorBuy (P)
3 lots, same day
207K$60K
Sep 6, 2024Dogan TimurChief Technology OfficerBuy (P)69K$20K
Sep 6, 2024Philibert RobertChief Medical Officer, DirectorBuy (P)
2 lots, same day
34K$10K
Aug 31, 2023Dogan MeeshanthiniChief Executive Officer, Director, 10% OwnerBuy (P)16K$9K
Aug 31, 2023Dogan TimurChief Technology OfficerBuy (P)16K$9K
Aug 28, 2023Philibert RobertChief Medical Officer, Director, 10% OwnerBuy (P)
2 lots, same day
18K$11K
Aug 25, 2023Dogan TimurChief Technology OfficerBuy (P)2K$991
Aug 25, 2023Dogan MeeshanthiniChief Executive Officer, Director, 10% OwnerBuy (P)2K$991
Aug 24, 2023Philibert RobertChief Medical Officer, Director, 10% OwnerBuy (P)16K$10K

One row per insider, day and transaction code; shares and value are summed across the lots. Every lot is on the full insider page and in the filing.

Do institutions, insiders and Congress agree?

Mixed signals

Where institutional funds (13F), corporate insiders (Form 4) and US House members (STOCK Act) are buying or selling the same name in the same window. Green is buying, red is selling.

SEC EDGAR 13F + Form 4 + US House STOCK Act{ }get_ticker_confluence · API & MCP

Signals by source

Insiders and Congress: last 180 days. Funds: latest 13F, top 100 holders incl. passive

SourceBuyingSellingNet
13F funds
Top 100 holders by value, passive included; the hero counts active managers only
23
Insiders
Form 4 open-market
00$0
US House
STOCK Act trades
00$0
Sector rotation
CDIO is in Health Care, which smart money is rotating OUT OF
$5.0B

Capital Rotation reports where institutional capital disclosed rotating, as of the latest public SEC 13F filings. It is data, not investment advice, a recommendation, or a prediction. Filings lag about 45 days and cover long US equity positions only. Past disclosed flows do not indicate future prices. Do your own research; consult a licensed advisor.

Institutional ownership over time

4 tracked filers in Q2 2026 filingsstill filing
0815Q2 2025Q3 2025Q4 2025Q1 2026Q2 2026
tracked filers holding their reported valueQ2 2026 filings so far: $80K
Each bar counts tracked filers with a position in that quarter's filings, so the newest bar excludes filers still on an earlier quarter. Arkolith's tracked universe has grown over this window; part of any long-run rise is coverage, not new buyers.

Share classes

Class13F holdersValue held
CDIOthis pageCOM NEW15 funds$460K
CDIOW*W EXP 10/25/2025 funds$137K

Same issuer, multiple share classes. The consensus leaderboards count this company once across all classes; this is the per-class detail.

Recent filings

15 most recent

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Connected entities for CDIO

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Ask your agent what changed in CDIO

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/CDIO/capital-change-brief"
Ask your agent
Use Arkolith's capital_change_brief for CDIO.
Tell me what changed, whether insider activity
corroborates it, and cite the SEC evidence.

13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for CDIO. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes.