Jacobs Levy Equity Management
TNDM icon

Jacobs Levy Equity Management’s Tandem Diabetes Care TNDM Stock Holding History

Jacobs Levy Equity Management’s Portfolio TNDM Stock Details TNDM Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$29.2M Sell
1,523,946
-129,762
-8% -$2.82M 0.12% 171
2025
Q4 		$36.3M Buy
1,653,708
+171,755
+12% +$3.1M 0.14% 140
2025
Q3 		$18M Buy
1,481,953
+50,646
+4% +$686K 0.07% 215
2025
Q2 		$26.7M Sell
1,431,307
-40,262
-3% -$797K 0.1% 185
2025
Q1 		$28.2M Sell
1,471,569
-189,444
-11% -$5.54M 0.11% 187
2024
Q4 		$59.8M Buy
1,661,013
+1,086,337
+189% +$36.7M 0.21% 114
2024
Q3 		$24.4M Sell
574,676
-669,464
-54% -$28.4M 0.09% 203
2024
Q2 		$50.1M Buy
1,244,140
+24,946
+2% +$1.04M 0.21% 114
2024
Q1 		$43.2M Sell
1,219,194
-71,773
-6% -$1.92M 0.19% 125
2023
Q4 		$38.2M Buy
1,290,967
+497,479
+63% +$10.3M 0.19% 123
2023
Q3 		$16.5M Buy
793,488
+2,633
+0.3% +$72.3K 0.1% 205
2023
Q2 		$19.4M Buy
790,855
+497,578
+170% +$16M 0.11% 194
2023
Q1 		$11.9M Buy
293,277
+278,048
+1,826% +$11.5M 0.07% 261
2022
Q4 		$685K Buy
+15,229
New +$689K ﹤0.01% 738
2019
Q2 		– Sell
-32,794
Closed -$2.08M – 1023
2019
Q1 		$2.08M Sell
32,794
-730
-2% -$38.3K 0.03% 502
2018
Q4 		$1.27M Sell
33,524
-15,421
-32% -$545K 0.02% 554
2018
Q3 		$2.1M Sell
48,945
-4
-0% -$140 0.03% 515
2018
Q2 		$1.08M Sell
48,949
-3,401
-6% -$41.8K 0.02% 650
2018
Q1 		$260K Sell
52,350
-26,536
-34% -$85.6K ﹤0.01% 885
2017
Q4 		$186K Buy
78,886
+55,001
+230% +$173K ﹤0.01% 916
2017
Q3 		$174K Buy
23,885
+16,164
+209% +$102K ﹤0.01% 883
2017
Q2 		$62K Buy
+7,721
New +$71.4K ﹤0.01% 905

Other funds holding TNDM

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
SC
Sessa Capital New York $5.51B AUM 47.23% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
ACH
ArrowMark Colorado Holdings Denver, Colorado $3.76B AUM 21.77% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
GKIM
GW&K Investment Management Boston, Massachusetts $11.3B AUM 31.98% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
DCM
Driehaus Capital Management Chicago, Illinois $13.6B AUM 173.98% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return
Citadel Advisors
Citadel Advisors Miami, Florida $618B AUM 30.34% 1-Year Est. Return

Jacobs Levy Equity Management's TNDM Position: Q1 2026 in Review

Jacobs Levy Equity Management reduced its Tandem Diabetes Care (TNDM) stake by 7.8% in Q1 2026, selling an estimated $2.82M and leaving 1,523,946 shares worth $29.2M. The position accounts for 0.12% of the portfolio, ranked #171.

Jacobs Levy Equity Management first reported a position in TNDM in Q2 2017 and has held it in 22 quarters since. The position peaked at $59.8M in Q4 2024. 272 funds tracked by Wall St. Rank hold TNDM as of Q1 2026.

  • Jacobs Levy Equity Management held 1,523,946 shares of Tandem Diabetes Care worth $29.2M as of Q1 2026.
  • Jacobs Levy Equity Management sold 129,762 Tandem Diabetes Care shares in Q1 2026, an estimated $2.82M.
  • Tandem Diabetes Care made up 0.12% of Jacobs Levy Equity Management's portfolio in Q1 2026, its #171 holding.
  • Jacobs Levy Equity Management first reported a position in Tandem Diabetes Care in Q2 2017 and has held it in 22 quarters since.
  • Jacobs Levy Equity Management's Tandem Diabetes Care position peaked at $59.8M in Q4 2024.
  • 272 funds tracked by Wall St. Rank held Tandem Diabetes Care as of Q1 2026.

Based on Jacobs Levy Equity Management's 13F filing for Q1 2026, filed 15 May 2026.