TANDEM DIABETES CARE INC TNDM
CIK 0001438133 · CUSIP 875372203
Quarter-end disclosures, not live holdings.
Top 20 institutions
Weight means this stock's share of the manager's own portfolio.
| # | Manager | Value | Manager weight | Change vs prior | Source | |
|---|---|---|---|---|---|---|
| 01 | BlackRock, Inc. CIK 2012383 · View history | $204.94M 10,690,844 shares | 0.00% | -458.34K(-4.10%)Reduced | SEC filing ↗ May 13, 2026 | ▾ |
| 02 | Sessa Capital IM, L.P. CIK 1595849 · View history | $90.69M 4,730,757 shares | 1.73% | -269.24K(-5.40%)Reduced | SEC filing ↗ May 15, 2026 | ▾ |
| 03 | VANGUARD PORTFOLIO MANAGEMENT LLC CIK 2100121 · Amended · View history | $76.55M 3,993,333 shares | 0.00% | — | SEC filing ↗ May 8, 2026 | ▾ |
| 04 | ArrowMark Colorado Holdings LLC CIK 1483859 · View history | $59.50M 3,103,609 shares | 1.58% | +213.92K(+7.40%)Added | SEC filing ↗ May 15, 2026 | ▾ |
| 05 | VANGUARD CAPITAL MANAGEMENT LLC CIK 2100119 · Amended · View history | $58.26M 3,038,919 shares | 0.00% | — | SEC filing ↗ May 15, 2026 | ▾ |
| 06 | GW&K Investment Management, LLC CIK 1082917 · View history | $51.55M 2,689,106 shares | 0.45% | +13.95K(+0.50%)Added | SEC filing ↗ May 13, 2026 | ▾ |
| 07 | STATE STREET CORP CIK 93751 · View history | $51.04M 2,662,260 shares | 0.00% | +20.54K(+0.80%)Added | SEC filing ↗ May 15, 2026 | ▾ |
| 08 | Driehaus Capital Management LLC CIK 938206 · View history | $44.18M 2,304,414 shares | 0.32% | +694.07K(+43.10%)Added | SEC filing ↗ May 15, 2026 | ▾ |
| 09 | GOLDMAN SACHS GROUP INC CIK 886982 · View history | $42.54M 2,218,922 shares | 0.01% | +535.52K(+31.80%)Added | SEC filing ↗ May 15, 2026 | ▾ |
| 10 | CITADEL ADVISORS LLC CIK 1423053 · View history | $42.03M 2,192,667 shares | 0.03% | +104.06K(+5.00%)Added | SEC filing ↗ May 15, 2026 | ▾ |
| 11 | UBS Group AG CIK 1610520 · View history | $39.26M 2,047,801 shares | 0.01% | +1.63M(+390.10%)Added | SEC filing ↗ May 5, 2026 | ▾ |
| 12 | Paradice Investment Management LLC CIK 1620275 · View history | $39.15M 2,042,425 shares | 7.35% | -35.32K(-1.70%)Reduced | SEC filing ↗ May 15, 2026 | ▾ |
| 13 | TWO SIGMA INVESTMENTS, LP CIK 1179392 · View history | $35.74M 1,864,194 shares | 0.03% | +662.67K(+55.20%)Added | SEC filing ↗ May 15, 2026 | ▾ |
| 14 | GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history | $32.21M 1,679,863 shares | 0.00% | +30.48K(+1.80%)Added | SEC filing ↗ May 15, 2026 | ▾ |
| 15 | JENNISON ASSOCIATES LLC CIK 53417 · View history | $31.79M 1,658,448 shares | 0.02% | -362.93K(-18.00%)Reduced | SEC filing ↗ May 6, 2026 | ▾ |
| 16 | JACOBS LEVY EQUITY MANAGEMENT, INC CIK 884414 · View history | $29.21M 1,523,946 shares | 0.12% | -129.76K(-7.80%)Reduced | SEC filing ↗ May 15, 2026 | ▾ |
| 17 | MARSHALL WACE, LLP CIK 1318757 · View history | $27.65M 1,442,472 shares | 0.03% | +566.94K(+64.80%)Added | SEC filing ↗ May 15, 2026 | ▾ |
| 18 | MORGAN STANLEY CIK 895421 · View history | $26.02M 1,357,542 shares | 0.00% | -722.96K(-34.70%)Reduced | SEC filing ↗ May 15, 2026 | ▾ |
| 19 | Freestone Grove Partners LP CIK 2007591 · View history | $25.51M 1,330,742 shares | 0.18% | -112.09K(-7.80%)Reduced | SEC filing ↗ May 15, 2026 | ▾ |
| 20 | First Light Asset Management, LLC CIK 1600004 · View history | $25.20M 1,314,715 shares | 2.26% | +225.22K(+20.70%)Added | SEC filing ↗ May 15, 2026 | ▾ |
Showing 20 / 275 institutions. The complete set is available through the API.
Coverage & totals by quarter
Reporting institutions by quarter
Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.
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