Maryland State Retirement & Pension System
TNDM icon

Maryland State Retirement & Pension System’s Tandem Diabetes Care TNDM Stock Holding History

Maryland State Retirement & Pension System’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 		– Sell
-9,855
Closed -$217K – 1403
2025
Q4 		$217K Buy
+9,855
New +$178K ﹤0.01% 1278
2025
Q3 		– Sell
-19,575
Closed -$365K – 1489
2025
Q2 		$365K Buy
19,575
+438
+2% +$8.68K 0.01% 1135
2025
Q1 		$367K Sell
19,137
-2,970
-13% -$86.9K 0.01% 1105
2024
Q4 		$796K Hold
22,107
– – 0.02% 775
2024
Q3 		$938K Sell
22,107
-413
-2% -$17.5K 0.02% 694
2024
Q2 		$907K Sell
22,520
-5,932
-21% -$247K 0.02% 741
2024
Q1 		$915K Hold
28,452
– – 0.02% 714
2023
Q4 		$842K Sell
28,452
-318
-1% -$6.6K 0.02% 783
2023
Q3 		$598K Sell
28,770
-1,207
-4% -$33.1K 0.01% 930
2023
Q2 		$736K Sell
29,977
-717
-2% -$23.1K 0.02% 818
2023
Q1 		$1.25M Buy
30,694
+25,894
+539% +$1.07M 0.03% 497
2022
Q4 		$216K Buy
+4,800
New +$217K 0.01% 1423
2022
Q3 		– Sell
-4,800
Closed -$284K – 1252
2022
Q2 		$284K Hold
4,800
– – 0.01% 1299
2022
Q1 		$558K Hold
4,800
– – 0.02% 997
2021
Q4 		$722K Hold
4,800
– – 0.02% 860
2021
Q3 		$581K Hold
4,800
– – 0.02% 984
2021
Q2 		$482K Hold
4,800
– – 0.02% 733
2021
Q1 		$424K Buy
+4,800
New +$446K 0.01% 793

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Vanguard Portfolio Management
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ArrowMark Colorado Holdings
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Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
GW&K Investment Management
GW&K Investment Management Boston, Massachusetts $12.8B AUM 48.82% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.38T AUM 44.17% 1-Year Est. Return
Driehaus Capital Management
Driehaus Capital Management Chicago, Illinois $17.3B AUM 211.34% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return
Citadel Advisors
Citadel Advisors Miami, Florida $875B AUM 40.89% 1-Year Est. Return

Maryland State Retirement & Pension System's TNDM Position: Q1 2026 in Review

Maryland State Retirement & Pension System sold out of Tandem Diabetes Care (TNDM) in Q1 2026, closing a stake of 9,855 shares — an estimated $217K sold.

Maryland State Retirement & Pension System first reported a position in TNDM in Q1 2021 and held it in 18 quarters. The position peaked at $1.25M in Q1 2023. 274 funds tracked by Wall St. Rank hold TNDM as of Q1 2026.

  • Maryland State Retirement & Pension System reported no remaining Tandem Diabetes Care position as of Q1 2026 after selling out during the quarter.
  • Maryland State Retirement & Pension System sold 9,855 Tandem Diabetes Care shares in Q1 2026, an estimated $217K.
  • Maryland State Retirement & Pension System first reported a position in Tandem Diabetes Care in Q1 2021 and held it in 18 quarters.
  • Maryland State Retirement & Pension System's Tandem Diabetes Care position peaked at $1.25M in Q1 2023.
  • 274 funds tracked by Wall St. Rank held Tandem Diabetes Care as of Q1 2026.

Based on Maryland State Retirement & Pension System's 13F filing for Q1 2026, filed 4 May 2026.