D. E. Shaw & Co., Inc.

Position in TAC — Transalta Corp

CIK 1009207 New York, NY

Back to TAC Full portfolio

Position in TAC

as of Mar 31, 2026 · filed May 15, 2026 Compact

Position Value

$3,535,400

+$751,871 QoQ

Shares Held

269,878

+22.6% QoQ

Ownership

0.085%

of shares outstanding

% of Portfolio

0.00%

of 13F equity value

Holder Rank

#59

of 176 holders

Holding Since

Jun 2020

21 quarters on record

Voting authority Sole 98.07320344748368.ToString("F0")% Shared 0.ToString("F0")% None 1.9267965525163224.ToString("F0")%

Common Shares in TAC Over Time

Shares Held

Position Value (USD)

Derivatives in TAC

reported options exposure · as of Dec 31, 2023

CallValue

$747,900

CallShares

90,000

PutValue

$379,767

PutShares

45,700

Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.

Position in Utilities - Independent Power Producers

Utilities · as of Mar 31, 2026

D. E. Shaw & Co., Inc. holds $221,330,206 across 6 Utilities - Independent Power Producers names. TAC ranks #4 (1.6% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	NRG	Nrg Energy, Inc.	954,278	$139,458,186
2	VST	Vistra Corp.	267,148	$40,160,358
3	CEG	Constellation Energy Corp	125,739	$35,112,615
4	TAC	Transalta Corp This page	269,878	$3,535,400
5	HNRG	Hallador Energy Co	148,085	$2,410,823
6	TLN	Talen Energy Corp	2,045	$652,824

All Filings in TAC

Export CSV

37 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$3,535,400	269,878	+22.6%	Shares	Defined	2026-05-15
2025-12-31	$2,783,529	220,216	-49.2%	Shares	Defined	2026-02-17
2025-09-30	$5,920,695	433,116	-35.1%	Shares	Defined	2025-11-14
2025-06-30	$7,199,141	667,205	-51.9%	Shares	Defined	2025-08-14
2025-03-31	$12,972,264	1,387,408	+100.3%	Shares	Defined	2025-05-15
2024-12-31	$9,799,100	692,516	-9.3%	Shares	Defined	2025-02-14
2024-09-30	$7,909,631	763,478	-63.1%	Shares	Defined	2024-11-14
2024-06-30	$14,639,159	2,067,678	+42.6%	Shares	Defined	2024-08-14
2024-03-31	$9,322,714	1,449,878	+1511.0%	Shares	Defined	2024-05-15
2023-12-31	$747,900	90,000	+96.9%	Call	Defined	2024-02-14
2023-12-31	$379,767	45,700	-79.7%	Put	Defined	2024-02-14
2023-12-31	$1,872,459	225,326	+447.5%	Shares	Defined	2024-02-14
2023-09-30	$358,048	41,155	-54.3%	Shares	Defined	2023-11-14
2023-09-30	$783,000	90,000	0.0%	Call	Defined	2023-11-14
2023-09-30	$783,000	90,000	-65.5%	Put	Defined	2023-11-14
2023-06-30	$2,443,474	261,055	+190.1%	Shares	Defined	2023-08-14
2023-06-30	$842,400	90,000	0.0%	Put	Defined	2023-08-14
2023-06-30	$842,400	90,000	+61.0%	Call	Defined	2023-08-14
2023-03-31	$489,125	55,900	-37.9%	Shares	Defined	2023-05-15
2023-03-31	$787,500	90,000	0.0%	Call	Defined	2023-05-15
2023-03-31	$787,500	90,000	+226.1%	Put	Defined	2023-05-15
2022-12-31	$247,572	27,600	-90.5%	Shares	Defined	2023-02-14
2022-12-31	$2,601,300	290,000	+52.6%	Call	Defined	2023-02-14
2022-12-31	$1,704,300	190,000	-64.8%	Put	Defined	2023-02-14
2022-09-30	$4,768,200	540,000	+184.2%	Call	Defined	2022-11-14
2022-09-30	$1,677,700	190,000	+337.8%	Put	Defined	2022-11-14
2022-09-30	$383,222	43,400	-87.6%	Shares	Defined	2022-11-14
2022-06-30	$3,990,000	350,000	+250.0%	Call	Defined	2022-08-15
2022-06-30	$1,140,000	100,000	-15.4%	Put	Defined	2022-08-15
2022-06-30	$1,348,107	118,255	+18.3%	Shares	Defined	2022-08-15
2022-03-31	$1,036,000	100,000	0.0%	Put	Defined	2022-05-16
2022-03-31	$1,036,000	100,000	+160.8%	Call	Defined	2022-05-16
2022-03-31	$397,181	38,338	-20.2%	Shares	Defined	2022-05-16
2021-06-30	$479,419	48,038	-30.6%	Shares	Defined	2021-08-16
2020-12-31	$525,228	69,200	-58.1%	Shares	Defined	2021-02-16
2020-09-30	$1,014,750	165,000	+108.1%	Shares	Defined	2020-11-16
2020-06-30	$470,249	79,300	—	Shares	Defined	2020-08-14
No filing history on record for this holder in this stock.