Bank of Montreal
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Bank of Montreal’s Tandem Diabetes Care TNDM Stock Holding History

Bank of Montreal’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
Q2 		$8.53M Buy
564,966
+527,531
+1,409% +$9.21M ﹤0.01% 1210
2026
Q1 		$718K Buy
37,435
+18,913
+102% +$411K ﹤0.01% 2212
2025
Q4 		$407K Sell
18,522
-16,271
-47% -$294K ﹤0.01% 2415
2025
Q3 		$422K Sell
34,793
-175,539
-83% -$2.38M ﹤0.01% 2341
2025
Q2 		$3.92M Buy
210,332
+198,942
+1,747% +$3.94M ﹤0.01% 1347
2025
Q1 		$218K Buy
11,390
+1,386
+14% +$40.6K ﹤0.01% 2690
2024
Q4 		$360K Buy
10,004
+409
+4% +$13.8K ﹤0.01% 2438
2024
Q3 		$407K Sell
9,595
-10,395
-52% -$441K ﹤0.01% 2546
2024
Q2 		$837K Buy
19,990
+11,045
+123% +$461K ﹤0.01% 2128
2024
Q1 		$319K Buy
8,945
+677
+8% +$18.1K ﹤0.01% 2738
2023
Q4 		$255K Buy
+8,268
New +$172K ﹤0.01% 2969
2023
Q2 		– Sell
-12,664
Closed -$516K – 4289
2023
Q1 		$516K Sell
12,664
-1,955
-13% -$80.9K ﹤0.01% 2439
2022
Q4 		$657K Sell
14,619
-2,223
-13% -$101K ﹤0.01% 2444
2022
Q3 		$839 Sell
16,842
-6,226
-27% -$341K ﹤0.01% 2282
2022
Q2 		$1.46K Sell
23,068
-79,361
-77% -$6.52M ﹤0.01% 2073
2022
Q1 		$12M Buy
102,429
+78,601
+330% +$9.18M 0.01% 1065
2021
Q4 		$3.65M Sell
23,828
-98
-0.4% -$13.2K ﹤0.01% 1343
2021
Q3 		$2.89M Buy
23,926
+4,758
+25% +$524K ﹤0.01% 1895
2021
Q2 		$1.92M Buy
19,168
+256
+1% +$22.8K ﹤0.01% 2085
2021
Q1 		$1.66M Sell
18,912
-19,496
-51% -$1.81M ﹤0.01% 1879
2020
Q4 		$3.67M Sell
38,408
-18,899
-33% -$1.95M ﹤0.01% 1547
2020
Q3 		$6.42M Sell
57,307
-9,857
-15% -$1.04M 0.01% 1067
2020
Q2 		$6.99M Sell
67,164
-1,130
-2% -$90.2K 0.01% 1023
2020
Q1 		$4.39M Sell
68,294
-14,236
-17% -$997K 0.01% 1041
2019
Q4 		$4.92M Buy
82,530
+9,459
+13% +$583K ﹤0.01% 1367
2019
Q3 		$4.31M Buy
73,071
+41,330
+130% +$2.64M ﹤0.01% 1280
2019
Q2 		$2.05M Buy
31,741
+31,445
+10,623% +$2.03M ﹤0.01% 1676
2019
Q1 		$19K Sell
296
-1,440
-83% -$75.6K ﹤0.01% 3692
2018
Q4 		$66K Sell
1,736
-469
-21% -$16.6K ﹤0.01% 3167
2018
Q3 		$94K Buy
2,205
+1,888
+596% +$65.9K ﹤0.01% 3126
2018
Q2 		$7K Buy
+317
New +$3.9K ﹤0.01% 4061
2016
Q2 		– Sell
-5
Closed – – 4318
2016
Q1 		$0 Sell
5
-1,340
-100% -$117K ﹤0.01% 4390
2015
Q4 		$160K Sell
1,345
-4,160
-76% -$413K ﹤0.01% 2547
2015
Q3 		$485K Sell
5,505
-1,500
-21% -$175K ﹤0.01% 1867
2015
Q2 		$760K Hold
7,005
– – ﹤0.01% 1783
2015
Q1 		$884K Buy
7,005
+7,000
+140,000% +$910K ﹤0.01% 1691
2014
Q4 		$1K Buy
+5
New +$693 ﹤0.01% 3930
2014
Q3 		– Sell
-23
Closed -$4K – 4395
2014
Q2 		$4K Buy
+23
New +$3.91K ﹤0.01% 4281

Other funds holding TNDM

BlackRock
BlackRock New York $6.73T AUM 46.02% 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
FGP
Freestone Grove Partners San Francisco, California $15.6B AUM 27.39% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Bank of Montreal's TNDM Position: Q2 2026 in Review

Bank of Montreal increased its Tandem Diabetes Care (TNDM) stake by 1,409% in Q2 2026, buying an estimated $9.21M and bringing the position to 564,966 shares worth $8.53M. The position accounts for ﹤0.01% of the portfolio, ranked #1210.

Bank of Montreal first reported a position in TNDM in Q2 2014 and has held it in 38 quarters since. The position peaked at $12M in Q1 2022. 252 funds tracked by Wall St. Rank hold TNDM as of Q2 2026.

  • Bank of Montreal held 564,966 shares of Tandem Diabetes Care worth $8.53M as of Q2 2026.
  • Bank of Montreal bought 527,531 Tandem Diabetes Care shares in Q2 2026, an estimated $9.21M.
  • Tandem Diabetes Care made up ﹤0.01% of Bank of Montreal's portfolio in Q2 2026, its #1210 holding.
  • Bank of Montreal first reported a position in Tandem Diabetes Care in Q2 2014 and has held it in 38 quarters since.
  • Bank of Montreal's Tandem Diabetes Care position peaked at $12M in Q1 2022.
  • 252 funds tracked by Wall St. Rank held Tandem Diabetes Care as of Q2 2026.

Based on Bank of Montreal's 13F filing for Q2 2026, filed 12 Aug 2026.