TNDM

Tandem Diabetes Care INC

-$75.2M

Net Activity

Institutions Holding

272

Popularity Rank

#2193

Avg Weight

0.10%

Total Value

$1.6B

Ownership Trend

272 institutions currently hold TNDM, with 132 net buyers and 132 net sellers this quarter.

Institutional Moves

Institutional Moves (Q1 2026)

Neutral

Based on recent trading activity

Net Selling Institutions

132

Net Buying Institutions

132

Key Holders

Key Holders

Top 5 by Value

BI
BlackRock, Inc.
$204.9M
UG
UBS Group AG
$138.5M
SC
Sessa Capital IM, L.P.
$90.7M
VP
Vanguard Portfolio Management LLC
$76.6M
AC
ArrowMark Colorado Holdings LLC
$59.5M

Top 5 by Conviction

PI
Paradice Investment Management LLC
7.35%
FL
First Light Asset Management, LLC
2.26%
DC
Defilade Capital Management, L.P.
2.05%
SC
Sessa Capital IM, L.P.
1.65%
AC
ArrowMark Colorado Holdings LLC
1.58%
View all 272 holding institutions

Quarterly Activity

Recent Activity

+$835.3M

Total Buy Value

$898.8M

Total Sell Value

New buy39
Trim94
Add93
Sold out38

132

Net Buyers

132

Net Sellers

Insider Trading (Form 4)

Form 144 Pre-Sale Notices

1

Filings (90d)

$6K

Total Est. Value

361 shares

Planned Shares

Last Filed 2026-06-17
FilerFiling DateEst. Value
Novara Mark David2026-06-17$6K

Form 144 is a planned sale notice, not an executed transaction. Form 144 Tracker。

Beneficial Ownership (13D/13G)

No Schedule 13D/13G filings for this ticker

Material Events (8-K)

No Form 8-K filings for this ticker

FAQ

Who are the top institutional investors holding TANDEM DIABETES CARE INC (TNDM)?
Major stakeholders currently include BlackRock, Inc. ($204.9M), UBS Group AG ($138.5M), Sessa Capital IM, L.P. ($90.7M). Based on the latest 13F filings, there are a total of 272 tracked investment funds and institutions maintaining positions in TNDM.
What is the overall institutional sentiment toward TNDM recently?
Institutional sentiment appears Bearish (Net Selling). During the most recent reporting quarter, the stock experienced a net outflow of $75.2M, driven by 132 managers accumulating shares while 132 reduced their exposure.
Which institutions have been selling or reducing their TNDM positions?
In the latest period, 94 funds trimmed their holdings, and 38 managers completely exited their positions. The aggregate reported sell value was $898.8M.
Are there any notable investors adding TNDM to their portfolios?
Yes, buying activity remains notable. 39 institutions opened new positions in {ticker}, and 93 existing holders added to their shares. The total reported buy value for the quarter amounted to $835.3M.

Related Stocks

Trending Institutional Adds

The most-added stocks by 13F institutions this quarter

MSFT

Microsoft CORP

Institutions Holding

6,150

Total reported value

$2.1T

3245 13F institutions increased their position this quarter

View detail
AMZN

Amazon.com INC

Institutions Holding

5,957

Total reported value

$1.5T

3028 13F institutions increased their position this quarter

View detail
NVDA

Nvidia CORP

Institutions Holding

5,764

Total reported value

$3.0T

2743 13F institutions increased their position this quarter

View detail