TNDM
TANDEM DIABETES CARE INC
$18.47
-4.50%
$1.2B
No data for this timeframe.
Vol
Market Cap$1.2B
Cap SizeSmall Cap
Analyst ConsensusBuy (59%)
Inst. Holders8 funds
Inst. Value$281.0M
Inst. Activity3 buys / 1 sells
Reddit Sentiment50° Neutral
SEC Reports2
Exchange Nasdaq·Sector Surgical & Medical Instruments & Apparatus·Inc. DE·CIK 0001438133·Prev Close $19.34
Recent Activity
Jun 9, 2026
short_volume
Short Volume: TNDM — 68.9% short (0.8M / 1.2M)
Short: 796,117 | Exempt: 15 | TRF Vol: 1,155,613 | Short Ratio: 68.9% | Off-exchange volume (dark po
Jun 2, 2026
Insider
Gasser Elizabeth Anne sold 7,160 shares
EVP, Chief Strategy Officer @ $0.00 ($0.00)
May 29, 2026
Insider
Morrison Susan sold 29,136 shares
EVP & Chief Admin. Officer @ $0.00 ($0.00)
May 29, 2026
Insider
Hansen Shannon Marie sold 29,136 shares
EVP & Chief Legal Officer @ $0.00 ($0.00)
May 15, 2026
SEC
Tandem Diabetes terminated EVP and Chief Commercial Officer Mark Novara without cause, effective May 18, 2026. The compa
8-K — Impact 3/10
Apr 7, 2026
SEC
Tandem Diabetes Care filed a definitive additional proxy statement (DEFA14A) for an upcoming shareholder meeting. The do
DEFA14A — Impact 3/10
Inst.
MORGAN STANLEY — DOUBLED
2,080,497 shares ($45.7M)
Inst.
WELLS FARGO & COMPANY/MN — ADD
84,411 shares ($1.9M)
Price Targets
$29.20
+65.8% upside
Strong Buy
Current $17.61
Low $17.00
Median $27.50
High $50.00
20 analysts
$17.00
$50.00
Analyst Ratings
6Strong Buy
11Buy
12Hold
0Sell
0Strong Sell
Recent Analyst Actions
| Date | Firm | Action | Rating |
|---|---|---|---|
| Jun 1, 2026 | Wells Fargo | UPGRADE | Equal-Weight → Overweight |
| May 28, 2026 | Citigroup | MAINTAIN | Neutral → Neutral |
| May 18, 2026 | B of A Securities | MAINTAIN | Neutral → Neutral |
| May 12, 2026 | Benchmark | INITIATE | Hold |
| May 11, 2026 | Truist Securities | REITERATE | Buy → Buy |
Earnings Estimates
| Period | EPS Est. | Range | Growth | # |
|---|---|---|---|---|
| Current Q | $-0.33 ▼ -10.9% | $-0.44 — $-0.23 | 33% YoY | 18 |
| Next Q | $-0.19 ▼ -19.6% | $-0.33 — $-0.01 | 39% YoY | 18 |
| Current FY | $-0.71 ▲ +11.9% | $-1.02 — $-0.41 | 73% YoY | 19 |
| Next FY | $0.06 ▲ +316.8% | $-0.64 — $0.58 | 108% YoY | 19 |
Latest Reports
NEUTRAL
8-K
3/10
Tandem Diabetes terminated EVP and Chief Commercial Officer Mark Novara without cause, effective May 18, 2026. The compa
May 15, 2026
NEUTRAL
DEFA14A
3/10
Tandem Diabetes Care filed a definitive additional proxy statement (DEFA14A) for an upcoming shareholder meeting. The do
Apr 7, 2026
Top Institutional Holders
| Fund | Value | Move |
|---|---|---|
| VANGUARD GROUP INC | $161.4M | — |
| MORGAN STANLEY | $45.7M | DOUBLED |
| TWO SIGMA INVESTMENTS, LP | $26.4M | ADD |
| BANK OF AMERICA CORP | $15.4M | — |
| FMR LLC | $14.8M | ADD |
Recent Insider Trades
| Date | Insider | Type | Value |
|---|---|---|---|
| Jun 2, 2026 | Gasser Elizabeth | G | $0.00 |
| May 29, 2026 | Morrison Susan | A | $0.00 |
| May 29, 2026 | Hansen Shannon | A | $0.00 |
| May 29, 2026 | Carpenter Rick | A | $0.00 |
| May 29, 2026 | Gasser Elizabeth | A | $0.00 |
Reddit Sentiment
50°
Neutral
Bearish
Neutral
Bullish
8 institutional holders with $281.0M total value (12,783,557 shares) as of 2025-Q4. Top holders: VANGUARD, MORGAN, TWO. Net buying activity: 3 institutions added/increased vs 1 reduced.
Top Institutional Holders — 2025-Q4
| # | Fund | Shares | Value | % of Tracked | Last Move |
|---|---|---|---|---|---|
| 1 | VANGUARD GROUP INC | 7,341,356 | $161.4M | 57.4% | — |
| 2 | MORGAN STANLEY | 2,080,497 | $45.7M | 16.3% | DOUBLED +182.1% |
| 3 | TWO SIGMA INVESTMENTS, LP | 1,201,527 | $26.4M | 9.4% | ADD +92.2% |
| 4 | BANK OF AMERICA CORP /DE/ | 702,503 | $15.4M | 5.5% | — |
| 5 | FMR LLC | 672,647 | $14.8M | 5.3% | ADD +65.8% |
| 6 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 646,310 | $14.2M | 5.1% | NEW |
| 7 | WELLS FARGO & COMPANY/MN | 84,411 | $1.9M | 0.7% | ADD +61.8% |
| 8 | NORGES BANK | 54,306 | $1.2M | 0.4% | NEW |
Recent Position Changes
| Fund | Action | Prev Shares | Curr Shares | Change % | Value | Quarter |
|---|---|---|---|---|---|---|
| MORGAN STANLEY | DOUBLED | 737,547 | 2,080,497 | +182.1% | $45.7M | 2025-Q4 |
| WELLS FARGO & COMPANY/MN | ADD | 52,174 | 84,411 | +61.8% | $1.9M | 2025-Q4 |
| NORGES BANK | NEW | — | 54,306 | — | $1.2M | 2025-Q4 |
| RENAISSANCE TECHNOLOGIES LLC | EXIT | 161,500 | 0 | -100.0% | $0.00 | 2025-Q4 |
| FMR LLC | ADD | 524,675 | 870,123 | +65.8% | $10.6M | 2025-Q3 |
| MORGAN STANLEY | TRIM | 1,265,534 | 737,547 | -41.7% | $9.0M | 2025-Q3 |
| RENAISSANCE TECHNOLOGIES LLC | TRIM | 342,327 | 161,500 | -52.8% | $2.0M | 2025-Q3 |
| MORGAN STANLEY | ADD | 930,969 | 1,265,534 | +35.9% | $23.6M | 2025-Q2 |
| TWO SIGMA INVESTMENTS, LP | ADD | 641,442 | 1,232,727 | +92.2% | $23.0M | 2025-Q2 |
| FMR LLC | TRIM | 1,437,076 | 524,675 | -63.5% | $9.8M | 2025-Q2 |
| WELLS FARGO & COMPANY/MN | TRIM | 166,910 | 50,281 | -69.9% | $937.2K | 2025-Q2 |
| FMR LLC | ADD | 1,086,842 | 1,437,076 | +32.2% | $27.5M | 2025-Q1 |
| TWO SIGMA INVESTMENTS, LP | TRIM | 861,188 | 641,442 | -25.5% | $12.3M | 2025-Q1 |
| WELLS FARGO & COMPANY/MN | DOUBLED | 61,255 | 166,910 | +172.5% | $3.2M | 2025-Q1 |
| RENAISSANCE TECHNOLOGIES LLC | ADD | 210,427 | 315,727 | +50.0% | $11.4M | 2024-Q4 |
| CITADEL ADVISORS LLC | TRIM | 445,623 | 235,726 | -47.1% | $8.5M | 2024-Q4 |
| WELLS FARGO & COMPANY/MN | ADD | 45,092 | 61,255 | +35.8% | $2.2M | 2024-Q4 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | NEW | — | 586,063 | — | $24.9M | 2024-Q3 |
16 unique insiders with 0 transactions. Net insider value: $0.00 ($0.00 bought, $0.00 sold).
Insider Transactions
| Date | Insider | Title | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Jun 2, 2026 | Gasser Elizabeth Anne | EVP, Chief Strategy Officer | G | 7,160 | $0.00 | $0.00 |
| May 29, 2026 | Morrison Susan | EVP & Chief Admin. Officer | A | 29,136 | $0.00 | $0.00 |
| May 29, 2026 | Hansen Shannon Marie | EVP & Chief Legal Officer | A | 29,136 | $0.00 | $0.00 |
| May 29, 2026 | Carpenter Rick | EVP & Chief Technology Officer | A | 26,003 | $0.00 | $0.00 |
| May 29, 2026 | Gasser Elizabeth Anne | EVP, Chief Strategy Officer | A | 29,136 | $0.00 | $0.00 |
| May 29, 2026 | Sheridan John F | PRESIDENT & CEO | A | 191,103 | $0.00 | $0.00 |
| May 29, 2026 | Vosseller Leigh | EVP & CHIEF FINANCIAL OFFICER | A | 62,657 | $0.00 | $0.00 |
| May 29, 2026 | Kyrillos Jean-Claude | EVP & Chief Operating Officer | A | 29,136 | $0.00 | $0.00 |
| May 21, 2026 | Cha Myoungil | Director | M | 8,759 | $0.00 | $0.00 |
| May 21, 2026 | Cha Myoungil | Director | M | 8,759 | $0.00 | $0.00 |
| May 21, 2026 | TWOMEY CHRISTOPHER J | Director | M | 8,759 | $0.00 | $0.00 |
| May 21, 2026 | ROBERTSON REBECCA B | Director | M | 8,759 | $0.00 | $0.00 |
| May 21, 2026 | Sodhi Rajwant | Director | M | 8,759 | $0.00 | $0.00 |
| May 21, 2026 | TWOMEY CHRISTOPHER J | Director | M | 8,759 | $0.00 | $0.00 |
| May 21, 2026 | Sodhi Rajwant | Director | M | 8,759 | $0.00 | $0.00 |
| May 21, 2026 | ROBERTSON REBECCA B | Director | M | 8,759 | $0.00 | $0.00 |
| May 21, 2026 | McGroddy-Goetz Kathleen | Director | M | 8,759 | $0.00 | $0.00 |
| May 21, 2026 | McGroddy-Goetz Kathleen | Director | M | 8,759 | $0.00 | $0.00 |
| May 21, 2026 | Malagueira Joao Paulo Falcao | Director | M | 8,759 | $0.00 | $0.00 |
| May 21, 2026 | Malagueira Joao Paulo Falcao | Director | M | 8,759 | $0.00 | $0.00 |
| May 21, 2026 | Howell Peyton R | Director | M | 8,759 | $0.00 | $0.00 |
| May 21, 2026 | Howell Peyton R | Director | M | 8,759 | $0.00 | $0.00 |
| May 21, 2026 | Allen Dick | M | 8,759 | $0.00 | $0.00 | |
| May 21, 2026 | Allen Dick | M | 8,759 | $0.00 | $0.00 | |
| May 20, 2026 | Cha Myoungil | Director | A | 10,220 | $0.00 | $0.00 |
| May 20, 2026 | TWOMEY CHRISTOPHER J | Director | A | 10,220 | $0.00 | $0.00 |
| May 20, 2026 | McGroddy-Goetz Kathleen | Director | A | 10,220 | $0.00 | $0.00 |
| May 20, 2026 | Beaver Sandra | Director | A | 5,110 | $0.00 | $0.00 |
| May 20, 2026 | ROBERTSON REBECCA B | Director | A | 10,220 | $0.00 | $0.00 |
| May 20, 2026 | Sodhi Rajwant | Director | A | 10,220 | $0.00 | $0.00 |
| May 20, 2026 | Malagueira Joao Paulo Falcao | Director | A | 10,220 | $0.00 | $0.00 |
| May 20, 2026 | Howell Peyton R | Director | A | 10,220 | $0.00 | $0.00 |
| May 20, 2026 | Allen Dick | A | 10,220 | $0.00 | $0.00 | |
| May 15, 2026 | Sheridan John F | PRESIDENT & CEO | M | 5,472 | $0.00 | $0.00 |
| May 15, 2026 | Sheridan John F | PRESIDENT & CEO | F | 2,785 | $12.82 | $35.7K |
| May 15, 2026 | Sheridan John F | PRESIDENT & CEO | A | 1,336 | $10.90 | $14.6K |
| May 15, 2026 | Sheridan John F | PRESIDENT & CEO | M | 5,472 | $0.00 | $0.00 |
| May 15, 2026 | Morrison Susan | EVP & Chief Admin. Officer | A | 1,336 | $10.90 | $14.6K |
| May 15, 2026 | Morrison Susan | EVP & Chief Admin. Officer | M | 1,503 | $0.00 | $0.00 |
| May 15, 2026 | Morrison Susan | EVP & Chief Admin. Officer | M | 1,503 | $0.00 | $0.00 |
| May 15, 2026 | Morrison Susan | EVP & Chief Admin. Officer | F | 430 | $12.82 | $5.5K |
| May 15, 2026 | Kyrillos Jean-Claude | EVP & Chief Operating Officer | M | 4,038 | $0.00 | $0.00 |
| May 15, 2026 | Kyrillos Jean-Claude | EVP & Chief Operating Officer | F | 2,139 | $12.82 | $27.4K |
| May 15, 2026 | Kyrillos Jean-Claude | EVP & Chief Operating Officer | A | 434 | $10.90 | $4.7K |
| May 15, 2026 | Kyrillos Jean-Claude | EVP & Chief Operating Officer | M | 4,038 | $0.00 | $0.00 |
| May 15, 2026 | Hansen Shannon Marie | EVP & Chief Legal Officer | M | 1,437 | $0.00 | $0.00 |
| May 15, 2026 | Hansen Shannon Marie | EVP & Chief Legal Officer | M | 1,437 | $0.00 | $0.00 |
| May 15, 2026 | Hansen Shannon Marie | EVP & Chief Legal Officer | F | 732 | $12.82 | $9.4K |
| May 15, 2026 | Hansen Shannon Marie | EVP & Chief Legal Officer | A | 1,886 | $10.90 | $20.6K |
| May 15, 2026 | Gasser Elizabeth Anne | EVP, Chief Strategy Officer | M | 1,503 | $0.00 | $0.00 |
2 SEC filing reports analyzed. Sentiment: 0 bullish, 0 bearish, 0 mixed, 2 neutral. Avg impact: 3.0/10.
No press releases analyzed yet. Press releases are collected from GlobeNewsWire and analyzed by the LLM pipeline.
Current analyst consensus: Hold (59% buy). Based on 29 analysts: 6 strong buy, 11 buy, 12 hold, 0 sell, 0 strong sell.
Analyst Price Targets
$29.20 mean target
+65.8% upside
Strong Buy (2.00)
$17.00 Low
$50.00 High
| Metric | Value |
|---|---|
| Current Price | $17.61 |
| Target Low | $17.00 |
| Target Mean | $29.20 |
| Target Median | $27.50 |
| Target High | $50.00 |
| # Analysts | 20 |
| Recommendation | Strong Buy (2.00) |
Earnings Estimates & Revisions
| Period | EPS Avg | EPS Low | EPS High | EPS Growth | 30d Rev. | Up/Down | Rev. Avg | Rev. Growth | Analysts |
|---|---|---|---|---|---|---|---|---|---|
| Current Q 2026-06-30 |
$-0.33 | $-0.44 | $-0.23 | 32.7% | -10.9% | 4↑ 12↓ | $0.3B | 5.9% | 18 |
| Next Q 2026-09-30 |
$-0.19 | $-0.33 | $-0.01 | 38.5% | -19.6% | 3↑ 14↓ | $0.3B | 7.7% | 18 |
| Current FY 2026-12-31 |
$-0.71 | $-1.02 | $-0.41 | 72.7% | +11.9% | 13↑ 4↓ | $1.1B | 5.8% | 19 |
| Next FY 2027-12-31 |
$0.06 | $-0.64 | $0.58 | 108.3% | +316.8% | 11↑ 2↓ | $1.2B | 12.3% | 19 |
Current Quarter EPS Revision History
| Timepoint | EPS Estimate | Change |
|---|---|---|
| Current | $-0.326 | |
| 7d ago | $-0.333 | +0.007 |
| 30d ago | $-0.294 | -0.032 |
| 60d ago | $-0.293 | -0.033 |
| 90d ago | $-0.296 | -0.030 |
17 analyst firms have rated this stock: 6 upgrades, 0 downgrades, 1 initiations.
Individual Analyst Actions
| Date | Analyst Firm | Action | Previous Rating | New Rating |
|---|---|---|---|---|
| Jun 1, 2026 | Wells Fargo | UPGRADE | Equal-Weight | Overweight |
| May 28, 2026 | Citigroup | MAINTAIN | Neutral | Neutral |
| May 18, 2026 | B of A Securities | MAINTAIN | Neutral | Neutral |
| May 12, 2026 | Benchmark | INITIATE | — | Hold |
| May 11, 2026 | Truist Securities | REITERATE | Buy | Buy |
| May 11, 2026 | Barclays | MAINTAIN | Overweight | Overweight |
| Apr 20, 2026 | TD Cowen | MAINTAIN | Buy | Buy |
| Apr 9, 2026 | Goldman Sachs | MAINTAIN | Neutral | Neutral |
| Mar 19, 2026 | Truist Securities | UPGRADE | Hold | Buy |
| Mar 17, 2026 | Piper Sandler | UPGRADE | Neutral | Overweight |
| Mar 2, 2026 | Morgan Stanley | MAINTAIN | Equal-Weight | Equal-Weight |
| Feb 23, 2026 | Lake Street | UPGRADE | Hold | Buy |
| Feb 23, 2026 | Truist Securities | REITERATE | Hold | Hold |
| Feb 20, 2026 | Mizuho | MAINTAIN | Neutral | Neutral |
| Feb 20, 2026 | UBS | MAINTAIN | Neutral | Neutral |
| Feb 20, 2026 | Stifel | MAINTAIN | Hold | Hold |
| Feb 20, 2026 | B of A Securities | UPGRADE | Underperform | Neutral |
| Feb 20, 2026 | Piper Sandler | MAINTAIN | Neutral | Neutral |
| Feb 4, 2026 | Stifel | MAINTAIN | Hold | Hold |
| Jan 9, 2026 | Bernstein | MAINTAIN | Market Perform | Market Perform |
| Dec 18, 2025 | Truist Securities | MAINTAIN | Hold | Hold |
| Dec 17, 2025 | Canaccord Genuity | MAINTAIN | Buy | Buy |
| Dec 17, 2025 | Mizuho | MAINTAIN | Neutral | Neutral |
| Dec 16, 2025 | Baird | UPGRADE | Neutral | Outperform |
Monthly Consensus History
| Period | Strong Buy | Buy | Hold | Sell | Strong Sell | Buy % | Distribution |
|---|---|---|---|---|---|---|---|
| Jun 1, 2026 | 6 | 11 | 12 | 0 | 0 | 59% | |
| May 1, 2026 | 6 | 11 | 12 | 0 | 0 | 59% | |
| Apr 1, 2026 | 6 | 11 | 12 | 0 | 0 | 59% | |
| Mar 1, 2026 | 6 | 9 | 15 | 0 | 0 | 50% | |
| Feb 1, 2026 | 6 | 8 | 15 | 1 | 0 | 47% | |
| Jan 1, 2026 | 6 | 8 | 15 | 1 | 0 | 47% |
Strong BuyBuyHoldSellStrong Sell
No congressional trading data available for this ticker. Data is sourced from Senate and House financial disclosure filings.
50°
Neutral
Bearish
Neutral
Bullish
5 mentions
0 bullish
0 bearish
5 time periods
Reddit Sentiment History
| Date | Mentions | Sentiment | Bullish | Bearish | Threads |
|---|---|---|---|---|---|
| May 28, 2026 | 1 | 50° Neutral | 0 | 0 | 1 |
| May 28, 2026 | 1 | 50° Neutral | 0 | 0 | 1 |
| May 28, 2026 | 1 | 50° Neutral | 0 | 0 | 1 |
| May 28, 2026 | 1 | 50° Neutral | 0 | 0 | 1 |
| May 27, 2026 | 1 | 50° Neutral | 0 | 0 | 1 |
Recent Reddit Threads
Jun 9, 2026
short_volume
Short Volume: TNDM — 68.9% short (0.8M / 1.2M)
Short: 796,117 | Exempt: 15 | TRF Vol: 1,155,613 | Short Ratio: 68.9% | Off-exchange volume (dark pool + OTC)
Jun 4, 2026
short_volume
Short Volume: TNDM — 59.2% short (0.7M / 1.3M)
Short: 740,099 | Exempt: 200 | TRF Vol: 1,250,965 | Short Ratio: 59.2% | Off-exchange volume (dark pool + OTC)
Jun 3, 2026
short_volume
Short Volume: TNDM — 64.1% short (0.8M / 1.2M)
Short: 764,704 | Exempt: 22 | TRF Vol: 1,193,130 | Short Ratio: 64.1% | Off-exchange volume (dark pool + OTC)
May 28, 2026
short_volume
Short Volume: TNDM — 57.3% short (1.1M / 1.9M)
Short: 1,061,730 | Exempt: 2,733 | TRF Vol: 1,853,504 | Short Ratio: 57.3% | Off-exchange volume (dark pool + OTC)
May 27, 2026
short_volume
Short Volume: TNDM — 65.8% short (1.0M / 1.5M)
Short: 1,019,958 | Exempt: 0 | TRF Vol: 1,549,352 | Short Ratio: 65.8% | Off-exchange volume (dark pool + OTC)
May 26, 2026
short_volume
Short Volume: TNDM — 74.0% short (1.1M / 1.5M)
Short: 1,095,698 | Exempt: 172,300 | TRF Vol: 1,481,266 | Short Ratio: 74.0% | Off-exchange volume (dark pool + OTC)
May 22, 2026
short_volume
Short Volume: TNDM — 72.7% short (0.5M / 0.7M)
Short: 514,775 | Exempt: 0 | TRF Vol: 708,490 | Short Ratio: 72.7% | Off-exchange volume (dark pool + OTC)
May 21, 2026
short_volume
Short Volume: TNDM — 69.7% short (0.5M / 0.7M)
Short: 464,898 | Exempt: 60,800 | TRF Vol: 666,620 | Short Ratio: 69.7% | Off-exchange volume (dark pool + OTC)
May 20, 2026
short_volume
Short Volume: TNDM — 66.7% short (0.4M / 0.6M)
Short: 410,962 | Exempt: 0 | TRF Vol: 615,962 | Short Ratio: 66.7% | Off-exchange volume (dark pool + OTC)
May 19, 2026
short_volume
Short Volume: TNDM — 68.2% short (0.6M / 0.8M)
Short: 578,306 | Exempt: 0 | TRF Vol: 847,417 | Short Ratio: 68.2% | Off-exchange volume (dark pool + OTC)
May 18, 2026
short_volume
Short Volume: TNDM — 75.4% short (2.0M / 2.7M)
Short: 2,042,636 | Exempt: 36,305 | TRF Vol: 2,710,544 | Short Ratio: 75.4% | Off-exchange volume (dark pool + OTC)
May 15, 2026
short_volume
Short Volume: TNDM — 64.2% short (1.9M / 2.9M)
Short: 1,862,220 | Exempt: 19,211 | TRF Vol: 2,900,557 | Short Ratio: 64.2% | Off-exchange volume (dark pool + OTC)
May 13, 2026
short_volume
Short Volume: TNDM — 74.5% short (1.0M / 1.4M)
Short: 1,014,641 | Exempt: 270 | TRF Vol: 1,362,812 | Short Ratio: 74.5% | Off-exchange volume (dark pool + OTC)
May 12, 2026
short_volume
Short Volume: TNDM — 68.7% short (0.8M / 1.2M)
Short: 820,826 | Exempt: 0 | TRF Vol: 1,194,351 | Short Ratio: 68.7% | Off-exchange volume (dark pool + OTC)
May 11, 2026
short_volume
Short Volume: TNDM — 63.2% short (1.1M / 1.8M)
Short: 1,123,761 | Exempt: 181,785 | TRF Vol: 1,778,878 | Short Ratio: 63.2% | Off-exchange volume (dark pool + OTC)