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Insider selling: $1,504,156 sold by 18 insiders (30d)
Factor divergence:
DIVERGENCE: options_sentiment bullish vs analyst_revisions bearish
Est. revisions:
+0.1%
(5 up, 10 down in 30d)
Backed by structured data (insider trades, analyst ratings, or filings)
Factor Model (net -0.5)
Factor Model
net -0.5 1.7 / 10
Est. Revisions
+0.0
Insider Activity
+0.0
Momentum
+0.0
Analyst Rev.
-0.6
Narrative Gap
+0.0
TNDM short interest drops 8% sharply
Watch: Q1 2026 earnings, focusing on pharmacy channel traction and margin improvement, will determine if short interest declines continue amid operational shifts.
Short interest in Tandem Diabetes Care fell 8.4% to 9.64 million shares, reducing the short percent of float to 18.9%. Days to cover stands at 5.2, indicating a moderately paced short squeeze risk. This follows a recent stable phase with mixed analyst views and improving but still challenged financials.
Lower short interest signals easing bearish pressure and potential for a positive catalyst if pharmacy channel growth and margin expansion materialize.
Evidence
5h ago
Short interest dropped 8% to 9,643,357 shares
7d ago
TD Cowen main TNDM: Buy → Buy
14d ago
Insider buy by NOVARA MARK DAVID (TNDM): $12,364
14d ago
Insider buy by KYRILLOS JEAN-CLAUDE (TNDM): $190,966
14d ago
Insider buy by VOSSELLER LEIGH A (TNDM): $149,404
14d ago
Insider buy by SHERIDAN JOHN F (TNDM): $102,318
1 older signals
Fundamentals & Data ▾
Tandem Diabetes Care, Inc.
Healthcare · Medical Devices
Mkt Cap
$1B
Beta
1.74
52w Range
$9.98 - $29.65
Short Interest
9.6M 18.95%
Days to Cover
5.2 -9%
Technicals
downtrend
from 52w Hi
-4.1%
1w return
-1.2%
Insiders
mixed
0B / 0S
Analysts
mixed
EPS Estimate
$-0.44
+0.1% 30d
5up / 10dn
Est. Dispersion
43%
18 analysts
Analyst Target
$31
$20 - $56
Options P/C
3.00
Insider Cluster
strong buy
4B / 3S (officer)
Fund Convergence
strong
Citadel, Two Sigma, D.E. Shaw
Financials
Revenue
$290M +3% YoY
FCF
$-32M
Gross Margin
58%
Op Margin
3%
Momentum:
accelerating
Top Holders
Citadel
$47M
Two Sigma
$21M
D.E. Shaw
$2M
Recent Filings & Data
insider trade
109
net selling
· $1,504,156 sold
· $455,052 bought
18 insiders · 109 transactions (30d)
Recent transactions
SHERIDAN JOHN F · other
NOVARA MARK DAVID · sell · $4,310
NOVARA MARK DAVID · other
NOVARA MARK DAVID · sell · $46
CARPENTER RICK · other
MORRISON SUSAN M · other
VOSSELLER LEIGH A · other
GASSER ELIZABETH ANNE · other
HANSEN SHANNON MARIE · other
NOVARA MARK DAVID · other
KYRILLOS JEAN-CLAUDE · other
CARPENTER RICK · other
NOVARA MARK DAVID · other
CARPENTER RICK · award · $5,285
MORRISON SUSAN M · other
VOSSELLER LEIGH A · other
KYRILLOS JEAN-CLAUDE · award · $2,494
GASSER ELIZABETH ANNE · award · $9,136
GASSER ELIZABETH ANNE · other
HANSEN SHANNON MARIE · award · $12,472
HANSEN SHANNON MARIE · other
NOVARA MARK DAVID · other
CARPENTER RICK · other
SHERIDAN JOHN F · other
SHERIDAN JOHN F · buy · $102,318
VOSSELLER LEIGH A · buy · $149,404
KYRILLOS JEAN-CLAUDE · other
CHA MYOUNGIL · other
MALAGUEIRA JOAO PAULO FALCAO · other
ALLEN DICK P · other · $19,880
ALLEN DICK P · exercise · $90,548
GASSER ELIZABETH ANNE · other
TWOMEY CHRISTOPHER J · exercise · $90,548
ROBERTSON REBECCA B · other
HOWELL-KOREN PEYTON R. · exercise · $90,548
SODHI RAJWANT · other
MCGRODDY-GOETZ KATHLEEN · other
CHA MYOUNGIL · exercise · $90,548
MALAGUEIRA JOAO PAULO FALCAO · other
CARPENTER RICK · award · $23,154
CARPENTER RICK · other
SHERIDAN JOHN F · award · $30,849
SHERIDAN JOHN F · exercise · $124,214
MORRISON SUSAN M · award · $30,849
MORRISON SUSAN M · other
VOSSELLER LEIGH A · award · $30,849
VOSSELLER LEIGH A · other
KYRILLOS JEAN-CLAUDE · award · $3,300
GASSER ELIZABETH ANNE · award · $26,037
GASSER ELIZABETH ANNE · other
HANSEN SHANNON MARIE · other
NOVARA MARK DAVID · award · $16,791
NOVARA MARK DAVID · other
KYRILLOS JEAN-CLAUDE · buy · $190,966
SHERIDAN JOHN F · other
MORRISON SUSAN M · other
VOSSELLER LEIGH A · other
CARPENTER RICK · other
SHERIDAN JOHN F · other
MORRISON SUSAN M · other
VOSSELLER LEIGH A · other
GASSER ELIZABETH ANNE · other
HANSEN SHANNON MARIE · other
NOVARA MARK DAVID · other
BLICKENSTAFF KIM D · sell · $1,241,400
CARPENTER RICK · award · $15,392
SHERIDAN JOHN F · award · $10,417
SHERIDAN JOHN F · other
MORRISON SUSAN M · other
VOSSELLER LEIGH A · other
GASSER ELIZABETH ANNE · award · $16,923
GASSER ELIZABETH ANNE · other
HANSEN SHANNON MARIE · award · $15,338
HANSEN SHANNON MARIE · other
NOVARA MARK DAVID · buy · $12,364
SHERIDAN JOHN F · other
VOSSELLER LEIGH A · other
HANSEN SHANNON MARIE · other
ALLEN DICK P · other · $258,191
ALLEN DICK P · other · $97,097
ALLEN DICK P · sell · $258,400
SHERIDAN JOHN F · other
MORRISON SUSAN M · other
VOSSELLER LEIGH A · other
GASSER ELIZABETH ANNE · other
LEAL JAMES · other
ALLEN DICK P · exercise · $229,371
BLICKENSTAFF KIM D · exercise · $229,371
TWOMEY CHRISTOPHER J · other
ROBERTSON REBECCA B · exercise · $229,371
HOWELL-KOREN PEYTON R. · exercise · $229,371
SODHI RAJWANT · other
MCGRODDY-GOETZ KATHLEEN · exercise · $229,371
CHA MYOUNGIL · other
MALAGUEIRA JOAO PAULO FALCAO · exercise · $210,282
CARPENTER RICK · award · $37,707
CARPENTER RICK · other
SHERIDAN JOHN F · award · $46,328
SHERIDAN JOHN F · other
MORRISON SUSAN M · award · $64,423
MORRISON SUSAN M · other
VOSSELLER LEIGH A · award · $64,328
VOSSELLER LEIGH A · other
GASSER ELIZABETH ANNE · award · $38,512
GASSER ELIZABETH ANNE · other
LEAL JAMES · award · $27,948
LEAL JAMES · other
HANSEN SHANNON MARIE · award · $37,849
HANSEN SHANNON MARIE · other
9 signals · latest 5h ago
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