13D·WATCH Activist + Insider Intelligence Live feed Blog About Pricing
ISSUER PROFILE · CIK 0001438133

TANDEM DIABETES CARE INCTNDM

3 13D/G filings 3 distinct filers 3 insider transactions (365d)

Cross-Reference Snapshot

Activist filings
3
3 SC
Distinct filers
3
multi-activist cluster
Insiders (365d)
3
1 buys · 0 sales
Latest short DTC
6.86
as of 2026-10-15

Institutional Consensus · 2025-12-31

Held by elite portfolio managers
1 holder · $4.09M
Point72 Asset Mgmt

13D/G Filings Timeline · 3 total

FiledFormFilerStakeSharesIntent
2018-02-16 SC BLICKENSTAFF KIM D — — view →
2018-02-13 SC DELPHI VENTURES VIII LP — — view →
2018-01-09 SC SABBY MANAGEMENT, LLC — — view →

Form 4 Insider Transactions · last 365d

DateInsiderRoleTypeSharesPriceValue
2026-05-21 Allen Dick — Option exercise 8,759 — —
2026-05-21 Allen Dick — Option exercise 8,759 — —
2026-05-20 Allen Dick — Award 10,220 — —

FINRA Short Interest History

SettlementShort InterestDays to Cover% Δ vs prior
2026-10-15 15,086,560 6.86 +12.8%
2026-09-30 13,369,091 5.25 +7.2%
2026-09-15 12,474,385 7.89 +6.1%
2026-08-31 11,753,819 8.17 +11.0%
2026-08-14 10,585,732 3.89 -5.8%
2026-07-31 11,242,544 6.58 -14.3%
2026-07-15 13,115,208 8.73 +3.0%
2026-06-30 12,731,073 5.62 +17.3%
2026-06-15 10,854,250 4.07 -7.9%
2026-05-29 11,788,786 4.15 +9.1%
2026-05-15 10,801,432 3.35 +11.1%
2026-04-30 9,723,853 6.17 +0.8%

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