Public ownership evidence

TransAlta Corporation (TAC) Ownership Disclosures

Read TAC insider transactions, institutional 13F filings and Congressional disclosures with report dates, public availability and original receipts.

As of 2026-10-10T12:08:28.848Z

Recent Form 4 activity

No matching purchases, sales or awards were returned in this 90-day public filing window.

No records are available for this view.

90-day public availability window, up to 50 records.

Recent institutional filing receipts

These are raw ticker-matched positions in recent 13F receipts, including amendments. They are not deduplicated current ownership totals. Open the manager profile to inspect its effective filing book.

Advisors Asset Management, Inc.2021-12-312026-08-2814,895$165,632None
Advisors Asset Management, Inc.2022-12-312026-08-2828,550$256,094None
Advisors Asset Management, Inc.2022-06-302026-08-2833,872$386,000None
Advisors Asset Management, Inc.2021-09-302026-08-283,925$41,000None
Advisors Asset Management, Inc.2022-09-302026-08-2736,845$325,000None
Advisors Asset Management, Inc.2022-03-312026-08-2722,023$228,158None
Advisors Asset Management, Inc.2023-06-302026-08-277,161$67,027None
Advisors Asset Management, Inc.2023-09-302026-08-275,102$44,387None
Advisors Asset Management, Inc.2023-03-312026-08-2716,801$147,009None
First Eagle Investment Management, LLC2026-06-302026-08-2520,360$281,377None
Value Aligned Research Advisors, LLC2026-06-302026-08-182,139,907$29,594,914None
CAPSTONE INVESTMENT ADVISORS, LLC2026-06-302026-08-1822,100$305,643None
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO2026-06-302026-08-1891,598$1,266,671None
MCGUIRE CAPITAL ADVISORS INC2026-06-302026-08-15199$2,752None
Investors Portfolio Services LLC2026-06-302026-08-1525$346None
WESTERLY CAPITAL MANAGEMENT, LLC2026-06-302026-08-15400,000$5,532,000None
TORONTO DOMINION BANK2026-06-302026-08-1550,000$691,005Put
TORONTO DOMINION BANK2026-06-302026-08-1510,000$138,201Call
TORONTO DOMINION BANK2026-06-302026-08-1511,691,897$161,583,161None
TORONTO DOMINION BANK2026-06-302026-08-1517,100$236,324Call
TORONTO DOMINION BANK2026-06-302026-08-1515,500$214,211Put
TORONTO DOMINION BANK2026-06-302026-08-15901$12,457None
TORONTO DOMINION BANK2026-06-302026-08-1517,762$245,000None
Federation des caisses Desjardins du Quebec2026-06-302026-08-1538,448$522,973None
Federation des caisses Desjardins du Quebec2026-06-302026-08-158,854$122,368None
Federation des caisses Desjardins du Quebec2026-06-302026-08-15413,158$5,613,252None
Investment Management Corp of Ontario2026-06-302026-08-1540,601$561,512None
Basecamp Wealth Advisors LLC2026-06-302026-08-1552$719None
Ameritas Advisory Services, LLC2026-06-302026-08-15318$4,398None
SIG North Trading, ULC2026-06-302026-08-15939,800$12,997,434Call
SIG North Trading, ULC2026-06-302026-08-15397,200$5,493,276Put
SIG North Trading, ULC2026-06-302026-08-1590,847$1,256,414None
XTX Topco Ltd2026-06-302026-08-1513,367$184,866None
Yaupon Capital Management LP2026-06-302026-08-152,065,064$28,567,993None
Clayton Partners LLC2026-06-302026-08-15658,516$9,107,276None
CHARLES SCHWAB INVESTMENT MANAGEMENT INC2026-06-302026-08-15892,403$12,341,108None
Sixth Street Partners Management Company, L.P.2026-06-302026-08-15892,403$12,341,108None
ExodusPoint Capital Management, LP2026-06-302026-08-1519,858$274,636None
Qube Research & Technologies Ltd2026-06-302026-08-15277,256$3,834,448None
Diametric Capital, LP2026-06-302026-08-1560,877$841,928None
Caption Management, LLC2026-06-302026-08-1536,300$502,029None
OSAIC HOLDINGS, INC.2026-06-302026-08-152,211$30,581None
Rokos Capital Management LLP2026-06-302026-08-152,061,847$28,494,919None
QUADRANT CAPITAL GROUP LLC2026-06-302026-08-1514,852$205,403None
Man Group plc2026-06-302026-08-151,063,291$14,705,315None
Man Group plc2026-06-302026-08-15355,800$4,920,385None
Engineers Gate Manager LP2026-06-302026-08-1550,683$700,946None
JANE STREET GROUP, LLC2026-06-302026-08-15132,289$1,829,557None
JANE STREET GROUP, LLC2026-06-302026-08-15853$11,797None
JANE STREET GROUP, LLC2026-06-302026-08-15468,100$6,473,823Call

90-day public filing window, up to 50 source positions.

Recent Congressional disclosures

No matching Congressional transactions were returned in this source preview.

No records are available for this view.

Bounded public source preview, up to 25 disclosed events.

How to read the disclosure dates

The tables report different things: insider transactions, institutional positions and Congressional transaction ranges. Read each table with its source dates and units. They cannot be added into a combined ownership percentage.

  1. Company insiders

    SEC Form 4 purchases, sales and awards report transactions and their public filing availability.

  2. Institutional managers

    13F reports disclose delayed quarter-end positions. They are not a record of trades between quarters.

  3. Congressional filers

    Periodic transaction reports disclose transaction dates and amount brackets. Public filing dates determine what researchers could know.

Read the transaction codes

Awards use transaction code A, purchases P and sales S. An acquisition from an award is not the same as an open-market purchase. Joint filers may share a transaction. Use original receipts and availability dates to interpret the events.