Who Owns TNDM?

Tandem Diabetes Care, Inc. — Institutional Ownership & 13F Holdings

$18.10

-0.53 (-2.84%)

Market Cap

$1.4B

Shares Outstanding

68,504,200

Institutional Holders

270

Total Inst. Value

$112.3B

% of Float Held

116.5%

QoQ Holder Change

+40

Institutional data as of Q1 2025

New Positions

52

Closed Positions

79

Increased

101

Decreased

80

Institutional Ownership Trend

Top 10 Institutional Holders(Q1 2025)

#FundValueShares
1CANADA PENSION PLAN INVESTMENT BOARD$111.1B5,800
2BlackRock, Inc.$211.3M11,028,712
3VANGUARD GROUP INC$139.7M7,292,169
4Sessa Capital IM, L.P.New$85.6M4,466,307
5GW&K Investment Management, LLC$54.9M2,863,987
6STATE STREET CORP$51.5M2,687,739
7Paradice Investment Management LLCNew$31.6M1,649,907
8GEODE CAPITAL MANAGEMENT, LLC$29.8M1,557,210
9JENNISON ASSOCIATES LLC$28.3M1,477,108
10JACOBS LEVY EQUITY MANAGEMENT, INC$28.2M1,471,569

Biggest Buyers & Sellers This Quarter

Top Sellers

FundShares RemovedValue
Chicago Capital, LLC-950K$397K
MARSHALL WACE, LLP-881K$1K
BlackRock, Inc.-669K$211.3M
VICTORY CAPITAL MANAGEMENT INC-553K$235K
FRED ALGER MANAGEMENT, LLC-489K$27.9M

Famous Fund Managers

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Frequently Asked Questions

How many institutional investors hold TNDM?

As of Q1 2025, 270 institutional investors report holding TNDM (Tandem Diabetes Care, Inc.) in their 13F filings.

What percentage of Tandem Diabetes Care, Inc. is owned by institutions?

Institutional investors hold approximately 116.5% of Tandem Diabetes Care, Inc.'s float as reported in SEC 13F filings.

Which hedge fund owns the most TNDM?

The largest institutional holder of TNDM is CANADA PENSION PLAN INVESTMENT BOARD with $111.1B in shares.

Are institutions buying or selling TNDM?

This quarter, 52 institutions opened new positions in TNDM and 79 closed their positions.

What is 13F institutional ownership?

SEC Form 13F is a quarterly report filed by institutional investment managers with over $100M in qualifying assets. It discloses their US equity holdings, providing transparency into what the largest investors are buying and selling.

How often is institutional ownership data updated?

13F filings are due 45 days after each calendar quarter end (May 15, Aug 14, Nov 14, Feb 14). Data is updated on HedgeTrace as new filings are processed.