Question 1

How many shares of CALX does D. E. Shaw & Co., Inc. own?

Accepted Answer

As of 2026-Q2, D. E. Shaw & Co., Inc. holds 409,082 shares of CALX (CALIX INC).

Question 2

What is D. E. Shaw & Co., Inc.'s CALX position worth?

Accepted Answer

As of 2026-Q2, D. E. Shaw & Co., Inc.'s CALX position is worth $15.3M.

Question 3

Is D. E. Shaw & Co., Inc. buying or selling CALX?

Accepted Answer

In 2026-Q2, D. E. Shaw & Co., Inc. increased their CALX position (+1840.9% change in shares).

Question 4

When did D. E. Shaw & Co., Inc. first buy CALX?

Accepted Answer

Based on available 13F filings, D. E. Shaw & Co., Inc. first reported a position in CALX in 2024-Q4. They have held the position across 26 quarters.

Quarter	Action	Shares	Change	Value	Weight	Price	Conviction
2026-Q2 Latest	Increased	409,082	+1840.9%	$15.3M	0.0%	$37.32	45
2026-Q1	Decreased	21,077	-45.5%	$1M	0.0%	$48.99	0
2025-Q4	Decreased	38,704	-9.2%	$2M	0.0%	$52.93	0
2025-Q3	Decreased	42,610	-79.0%	$2.6M	0.0%	$61.37	0
2025-Q2	Increased	202,473	+356.5%	$10.8M	0.0%	$53.19	45
2025-Q1	Decreased	44,356	-59.8%	$1.6M	0.0%	$35.44	0
2024-Q4	New	110,231	—	$3.8M	0.0%	$34.87	37