Citigroup
TNDM icon

Citigroup’s Tandem Diabetes Care TNDM Stock Holding History

Citigroup’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
2021
Q1 		– Sell
-16,900
Closed -$1.62M – 7356
2020
Q4 		$1.62M Buy
16,900
+1,000
+6% +$103K ﹤0.01% 3064
2020
Q3 		$1.8M Sell
15,900
-18,100
-53% -$1.9M ﹤0.01% 2747
2020
Q2 		$3.36M Buy
34,000
+13,900
+69% +$1.11M ﹤0.01% 2239
2020
Q1 		$1.29M Sell
20,100
-31,800
-61% -$2.23M ﹤0.01% 2911
2019
Q4 		$3.09M Buy
51,900
+8,400
+19% +$518K ﹤0.01% 2502
2019
Q3 		$2.57M Sell
43,500
-3,500
-7% -$223K ﹤0.01% 2593
2019
Q2 		$3.03M Buy
47,000
+16,700
+55% +$1.08M ﹤0.01% 2390
2019
Q1 		$1.92M Buy
30,300
+15,100
+99% +$793K ﹤0.01% 2691
2018
Q4 		$577K Buy
15,200
+8,400
+124% +$297K ﹤0.01% 3974
2018
Q3 		$291K Buy
+6,800
New +$237K ﹤0.01% 4875

Other funds holding TNDM

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
SC
Sessa Capital New York $5.98B AUM 99.85% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
FLAM
First Light Asset Management Edina, Minnesota $1.65B AUM 203.21% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
GKIM
GW&K Investment Management Boston, Massachusetts $12.8B AUM 48.82% 1-Year Est. Return
Jennison Associates
Jennison Associates New York $167B AUM 44.17% 1-Year Est. Return
PIM
Paradice Investment Management Denver, Colorado $627M AUM 43.41% 1-Year Est. Return
Jacobs Levy Equity Management
Jacobs Levy Equity Management Florham Park, New Jersey $27.8B AUM 46.46% 1-Year Est. Return

Citigroup's TNDM Position: Q2 2026 in Review

Citigroup reduced its Tandem Diabetes Care (TNDM) stake by 41% in Q2 2026, selling an estimated $491K and leaving 40,230 shares worth $607K. The position accounts for ﹤0.01% of the portfolio, ranked #3802.

Citigroup first reported a position in TNDM in Q4 2013 and has held it in 50 quarters since. The position peaked at $10.3M in Q1 2021. 273 funds tracked by Wall St. Rank hold TNDM as of Q2 2026.

  • Citigroup held 40,230 shares of Tandem Diabetes Care worth $607K as of Q2 2026.
  • Citigroup sold 28,116 Tandem Diabetes Care shares in Q2 2026, an estimated $491K.
  • Tandem Diabetes Care made up ﹤0.01% of Citigroup's portfolio in Q2 2026, its #3802 holding.
  • Citigroup first reported a position in Tandem Diabetes Care in Q4 2013 and has held it in 50 quarters since.
  • Citigroup's Tandem Diabetes Care position peaked at $10.3M in Q1 2021.
  • 273 funds tracked by Wall St. Rank held Tandem Diabetes Care as of Q2 2026.

Based on Citigroup's 13F filing for Q2 2026, filed 3 Aug 2026.