Calamos Advisors’s Nebius Group N.V. NBIS Stock Holding History

Calamos Advisors’s Portfolio NBIS Stock Details NBIS Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$6.73M	Buy	+24,379	New	+$4.83M	0.02%	511
2025 Q4	–	Sell	-38,467	Closed	-$4.32M	–	1015
2025 Q3	$4.32M	Buy	+38,467	New	+$2.67M	0.02%	554
2021 Q1	–	Sell	-25,500	Closed	-$1.71M	–	973
2020 Q4	$1.77M	Hold	25,500	–	–	0.01%	648
2020 Q3	$1.66M	Sell	25,500 -9,500	-27%	-$566K	0.01%	611
2020 Q2	$1.75M	Buy	35,000 +10,535	+43%	+$422K	0.01%	589
2020 Q1	$833K	Buy	+24,465	New	+$1.01M	0.01%	608
2018 Q2	–	Sell	-223,507	Closed	-$7.79M	–	642
2018 Q1	$8.82M	Buy	223,507 +194,200	+663%	+$7.62M	0.06%	335
2017 Q4	$960K	Sell	29,307 -52,413	-64%	-$1.71M	﹤0.01%	555
2017 Q3	$2.69M	Sell	81,720 -250	-0.3%	-$7.63K	0.02%	478
2017 Q2	$2.15M	Sell	81,970 -55,550	-40%	-$1.45M	0.02%	520
2017 Q1	$3.02M	Sell	137,520 -430,550	-76%	-$9.81M	0.02%	431
2016 Q4	$11.4M	Sell	568,070 -10,650	-2%	-$209K	0.09%	246
2016 Q3	$12.2M	Buy	578,720 +276,450	+91%	+$6.01M	0.09%	248
2016 Q2	$6.61M	Buy	302,270 +89,370	+42%	+$1.74M	0.05%	311
2016 Q1	$3.26M	Hold	212,900	–	–	0.02%	390
2015 Q4	$3.35M	Buy	+212,900	New	+$3.19M	0.02%	393
2014 Q1	–	Sell	-5,175	Closed	-$223K	–	671
2013 Q4	$223K	Buy	+5,175	New	+$201K	﹤0.01%	620

Other funds holding NBIS

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Jennison Associates New York $167B AUM 44.17% 1-Year Est. Return

RIM

Rovida Investment Management Grand Cayman, Cayman Islands $1.47B AUM 142.45% 1-Year Est. Return

Citigroup New York $303B AUM 53.02% 1-Year Est. Return

Deutsche Bank Frankfurt Am Main Ge, Germany $344B AUM 42.99% 1-Year Est. Return

LPL Financial San Diego, California $445B AUM 25.58% 1-Year Est. Return

Sumitomo Mitsui Trust Group Minato-Ku, Tokyo, Japan $175B AUM 40.63% 1-Year Est. Return

SG Americas Securities New York $179B AUM 65.34% 1-Year Est. Return

Bank of New York Mellon New York $609B AUM 40.19% 1-Year Est. Return

Calamos Advisors's NBIS Position: Q2 2026 in Review

Calamos Advisors opened a new position in Nebius Group N.V. (NBIS) in Q2 2026: 24,379 shares worth $6.73M. The stake represents 0.02% of the portfolio and ranks #511 among its holdings. This is a return to the name: Calamos Advisors previously reported a position in NBIS as recently as Q3 2025.

Calamos Advisors first reported a position in NBIS in Q4 2013 and has held it in 17 quarters since. The position peaked at $12.2M in Q3 2016. 567 funds tracked by Wall St. Rank hold NBIS as of Q2 2026.

Calamos Advisors held 24,379 shares of Nebius Group N.V. worth $6.73M as of Q2 2026.
Nebius Group N.V. was a new Calamos Advisors position in Q2 2026.
Nebius Group N.V. made up 0.02% of Calamos Advisors's portfolio in Q2 2026, its #511 holding.
Calamos Advisors first reported a position in Nebius Group N.V. in Q4 2013 and has held it in 17 quarters since.
Calamos Advisors's Nebius Group N.V. position peaked at $12.2M in Q3 2016.
567 funds tracked by Wall St. Rank held Nebius Group N.V. as of Q2 2026.

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