Security key
89377M109
TransMedics Group, Inc. - Common Stock (TMDX)
CUSIP: 89377M109
Q4 2023 13F Holders as of 31 Dec 2023
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 34,973,168
- Total 13F value
- $2,760,564,347
- Share change
- -198,872
- Put/Call ratio
- 67%
- SEC-reported price per share
- $78.93
- Number of holders
- 244
- Value change
- -$4,091,949
- Number of buys
- 117
- Number of sells
- 109
- Shares outstanding
- 34,330,771
Holder snapshot
7 signals
Open additional details 1 more signal available
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q4 2023
Institutions
244
Top holders
10
TMDX full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q3 2026
TransMedics Group, Inc. SEC filings
TransMedics Group, Inc. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 89377M109
Recent filing periods:
Ownership snapshot
Top reported holders of TMDX - TransMedics Group, Inc. - Common Stock (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
BlackRock Finance, Inc.
Disclosed value leader
BlackRock Finance, Inc.
Comparable rows
0/15
Latest evidence
30 Sep 2023
13F
Highest disclosed value: $134,100,819
15 rows are not safely comparable across share classes.
Showing 1-6 of 15 holder rows.
Quick read
BlackRock Finance, Inc. has the largest disclosed position value at $134.1M.
0 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens BlackRock Finance, Inc.'s linked filing trail.
Disclosed position value
Top 5
BlackRock Finance, Inc.
$134.1M
VANGUARD GROUP INC
$99.34M
MACQUARIE GROUP LTD
$93.67M
FRED ALGER MANAGEMENT, LLC
$86.21M
Allspring Global Investments Hold...
$69.62M
Value bars compare disclosed positions; verify each figure against the linked filing evidence.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| BlackRock Finance, Inc. |
13F
Company
|
—
denominator unverified
|
$134,100,819
2,449,330 shares
|
— | 30 Sep 2023 |
| VANGUARD GROUP INC |
13F
Company
|
—
denominator unverified
|
$99,340,698
1,814,442 shares
|
— | 30 Sep 2023 |
| MACQUARIE GROUP LTD |
13F
Company
|
—
denominator unverified
|
$93,669,000
1,710,851 shares
|
— | 30 Sep 2023 |
| FRED ALGER MANAGEMENT, LLC |
13F
Company
|
—
denominator unverified
|
$86,209,514
1,574,603 shares
|
— | 30 Sep 2023 |
| Allspring Global Investments Holdings, LLC |
13F
Company
|
—
denominator unverified
|
$69,622,523
1,271,643 shares
|
— | 30 Sep 2023 |
| Invesco Ltd. |
13F
Company
|
—
denominator unverified
|
$68,624,691
1,253,419 shares
|
— | 30 Sep 2023 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q4 2023
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
244
Shares
34,973,168
Rows available
244
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q4 2023 vs Q3 2023 Across Filers
Q3 2023 holders
218
Q4 2023 holders
244
Holder diff
26
| Investor | Q3 2023 Shares | Q4 2023 Shares | Share Diff | Share Chg % | Q3 2023 value | Q4 2023 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend