Supply chain

from SEC filings · 7 direct tiesThe filings

100%

Select a tie for the filing sentence that discloses it; select again to open the company. Lines are disclosed suppliers and customers, coloured by industry; the closer to the centre, the more the filings disclose. A dot is green or red by today’s move. Extended: satellites hang off single companies, not bundled sectors.

Largest move on the map today: ABT −0.02%, in healthcare.

Intraday

No intraday reading yet this session.

Who owns Tandem Diabetes Care Inc

273 institutional managers report a position in Tandem Diabetes Care Inc worth $1.3B between them, filed on form 13F for the quarter ending 2026-06-30. 34 of them hold 80% of it, the largest being BlackRock, Inc. at 13.62%.

Institutional holders

13f · as of Jun 30 · 273 managers

ManagerValue% baseQtr shares

BlackRock, Inc.broad$174.8M13.62%+8.35%

UBS Group AGbroad$95.4M7.44%−12.47%

Sessa Capital IM, L.P.$77.0M6.00%+7.81%

Vanguard Portfolio Management LLCbroad$64.9M5.06%+7.67%

First Light Asset Management, LLC$51.1M3.98%+157.36%

Vanguard Capital Management LLCbroad$46.7M3.64%+1.90%

State Street Corpbroad$43.0M3.35%+7.11%

GW&K Investment Management, LLC$38.8M3.02%−4.47%

Jennison Associates LLC$35.2M2.74%+40.58%

Paradice Investment Management LLC$30.5M2.38%−0.90%

Jacobs Levy Equity Management, Inc$30.3M2.36%+31.66%

Freestone Grove Partners LP$28.2M2.19%+40.23%

Citadel Advisors LLCbroad$28.0M2.18%−18.58%

Geode Capital Management, LLCbroad$27.2M2.12%+7.20%

Driehaus Capital Management LLC$27.0M2.10%−22.45%

Millennium Management LLCbroad$19.8M1.54%+72.22%

Woodline Partners LP$19.7M1.54%new

Arrowpoint Asset Management, LLC$19.6M1.53%−58.13%

FMR LLCbroad$14.7M1.15%+36.75%

Point72 Asset Management, L.P.$13.7M1.07%+78.44%

Royce & Associates LP$13.6M1.06%+29.29%

Wellington Management Group LLP$13.2M1.03%−16.39%

Goldman Sachs Group Incbroad$13.0M1.01%−61.14%

Northern Trust Corpbroad$11.4M0.89%+6.66%

Verition Fund Management LLC$10.6M0.82%+553.48%

248 more managers in the register

34 managers hold 80% of the $1.3B institutional base. The other 239 hold the rest.

Positions as filed with the SEC for the quarter ended Jun 30. A 13F is due 45 days after the quarter closes, so this register is 78 days old and does not move with the price above it.

Held alongside

active managers · 27 broad holders set aside

AXGN10.70%

via First Light Asset Management, LLC, Arrowpoint Asset Management, LLC, Driehaus Capital Management LLC +7 more · 3.98% of TNDM, 5.22% of AXGN

PVLA9.77%

via First Light Asset Management, LLC, Jennison Associates LLC, Woodline Partners LP +4 more · 3.98% of TNDM, 5.30% of PVLA

SEI9.59%

via Jennison Associates LLC, Driehaus Capital Management LLC, GW&K Investment Management, LLC +8 more · 2.74% of TNDM, 2.19% of SEI

NEO9.31%

via First Light Asset Management, LLC, Driehaus Capital Management LLC, GW&K Investment Management, LLC +5 more · 3.98% of TNDM, 7.97% of NEO

AAMI9.27%

via Jennison Associates LLC, Driehaus Capital Management LLC, Woodline Partners LP +6 more · 2.74% of TNDM, 4.27% of AAMI

ACVA8.71%

via Paradice Investment Management LLC, Arrowpoint Asset Management, LLC, Point72 Asset Management, L.P. +7 more · 2.38% of TNDM, 3.04% of ACVA

Managers holding a meaningful stake in TNDM also hold this much of the other company’s institutional base. Managers who hold most of the companies we cover are excluded, because their overlap says nothing about this one in particular. This is how the two are held, not evidence that one moves the other.

Prices via Intrinio. Supplier and customer ties are extracted from SEC filings and carry the sentence they came from. Not investment advice.