Calamos Advisors
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Calamos Advisors’s Penumbra PEN Stock Holding History

Calamos Advisors’s Portfolio PEN Stock Details PEN Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$29M Buy
91,863
+24,981
+37% +$8.09M 0.1% 208
2026
Q1 		$22M Buy
66,882
+62,218
+1,334% +$21.1M 0.08% 261
2025
Q4 		$1.45M Buy
4,664
+826
+22% +$228K 0.01% 650
2025
Q3 		$972K Buy
3,838
+1,044
+37% +$263K ﹤0.01% 711
2025
Q2 		$717K Sell
2,794
-10,089
-78% -$2.75M ﹤0.01% 723
2025
Q1 		$3.45M Sell
12,883
-1,532
-11% -$414K 0.02% 551
2024
Q4 		$3.42M Buy
+14,415
New +$3.28M 0.01% 552
2023
Q4 		– Sell
-1,927
Closed -$466K – 966
2023
Q3 		$466K Sell
1,927
-10,129
-84% -$2.81M ﹤0.01% 721
2023
Q2 		$4.15M Sell
12,056
-4,084
-25% -$1.25M 0.02% 595
2023
Q1 		$4.5M Buy
16,140
+1,392
+9% +$355K 0.02% 656
2022
Q4 		$3.28M Buy
+14,748
New +$2.88M 0.02% 735
2020
Q2 		– Sell
-7,353
Closed -$1.19M – 762
2020
Q1 		$1.19M Sell
7,353
-2,185
-23% -$368K 0.01% 584
2019
Q4 		$1.57M Buy
9,538
+37
+0.4% +$5.88K 0.01% 638
2019
Q3 		$1.28M Sell
9,501
-16,211
-63% -$2.51M 0.01% 639
2019
Q2 		$4.11M Buy
+25,712
New +$3.71M 0.02% 558

Other funds holding PEN

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
HI
HBK Investments Dallas, Texas $10.2B AUM 67.73% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
ECM
ExodusPoint Capital Management New York $15.5B AUM 38.81% 1-Year Est. Return
Balyasny Asset Management
Balyasny Asset Management Chicago, Illinois $80.2B AUM 51.53% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return
Arrowstreet Capital
Arrowstreet Capital Boston, Massachusetts $225B AUM 49.49% 1-Year Est. Return

Calamos Advisors's PEN Position: Q2 2026 in Review

Calamos Advisors increased its Penumbra (PEN) stake by 37% in Q2 2026, buying an estimated $8.09M and bringing the position to 91,863 shares worth $29M. The position accounts for 0.1% of the portfolio, ranked #208.

Calamos Advisors first reported a position in PEN in Q2 2019 and has held it in 15 quarters since. 451 funds tracked by Wall St. Rank hold PEN as of Q2 2026.

  • Calamos Advisors held 91,863 shares of Penumbra worth $29M as of Q2 2026.
  • Calamos Advisors bought 24,981 Penumbra shares in Q2 2026, an estimated $8.09M.
  • Penumbra made up 0.1% of Calamos Advisors's portfolio in Q2 2026, its #208 holding.
  • Calamos Advisors first reported a position in Penumbra in Q2 2019 and has held it in 15 quarters since.
  • 451 funds tracked by Wall St. Rank held Penumbra as of Q2 2026.

Based on Calamos Advisors's 13F filing for Q2 2026, filed 31 Jul 2026.