Stocks › TAC
TRANSALTA CORP
TAC·NYSE·
Canada·USD
Canada·USD$13.12
+0.65 (+5.21%)
Close · Oct 6, 2026 · Close Prices from Tiingo.com
TAC
TRANSALTA CORP · NYSE
Nasdaq 100S&P 500
Filings
Default90D1Y5YALL
TACS&P 500 (rebased)
Congress BuyCongress SellInsider BuyInsider SellForm 1448-K ResultsLobbying
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Daily closes, adjusted for splits and dividends · Close Prices from Tiingo.comHover a marker, every one is a filing · move across the line for the crosshair
Congressional Trades
Recent trades of TAC by members of U.S. Congress · 1 on record
| Politician | Stock | Type | Filed | Traded | |
|---|---|---|---|---|---|
 Thomas R CarperSenate · D · DE |
TACTRANSALTA CORP · Stock |
Exchange $1,001 - $15,000 |
Jan 3, 2024 | Dec 21, 2023 | Filing ↗ |
Whale Activity
Position changes in TAC reported for 2026-06-30 by 13 tracked institutional filers
- Increased3
- New0
- Held0
- Decreased5
- Closed1
- No prior filing4
| Filer | Shares | Value | Change |
|---|---|---|---|
| MILLENNIUM MANAGEMENT LLC | 10.4M | $144.1M | increased |
| VANGUARD CAPITAL MANAGEMENT LLC | 7.8M | $107.9M | increased |
| CITADEL ADVISORS LLC | 3.2M | $44.1M | increased |
| Value Aligned Research Advisors, LLC | 2.1M | $29.6M | — |
| RENAISSANCE TECHNOLOGIES LLC | 1.3M | $18.3M | decreased |
| MMCAP International Inc. SPC | 1.3M | $18.1M | — |
| PCJ Investment Counsel Ltd. | 653.3K | $9.0M | — |
| Point72 Asset Management, L.P. | 427.5K | $5.9M | decreased |
| BlackRock, Inc. | 206.4K | $2.9M | decreased |
| D. E. Shaw & Co., Inc. | 163.7K | $2.3M | decreased |
| Hartree Partners, LP | 150.0K | $2.1M | — |
| Bridgewater Associates, LP | 14.2K | $197K | decreased |
KeyVex tracks a curated set of large 13F filers plus the largest positions in recent filings, so this is a sample of institutional activity, not the whole market.
Insider Trading
Net shares bought (+) or sold (−) on the open market by TAC insiders, by quarter · Form 4
No open-market insider buys or sells in the last two years.
Recent Insider Transactions
0 transactions on record · newest first
No insider transactions on record.
Fund Holders
Mutual funds and ETFs holding TAC · SEC Form N-PORT
| Fund | Shares | Value | % of fund | As of |
|---|---|---|---|---|
| Small Cap Growth Fund American Century Mutual Funds, Inc. | 4.6M | $57.6M | 1.04% | Jul 31, 2026 |
| VANGUARD TOTAL INTERNATIONAL STOCK INDEX FUND VANGUARD STAR FUNDS | 3.9M | $49.0M | 0.01% | Jul 31, 2026 |
| VANGUARD DEVELOPED MARKETS INDEX FUND VANGUARD TAX-MANAGED FUNDS | 2.6M | $36.3M | 0.01% | Jun 30, 2026 |
| The Canadian Small Company Series DFA INVESTMENT TRUST CO | 1.4M | $17.1M | 0.85% | Jul 31, 2026 |
| VIP Mid Cap Portfolio VARIABLE INSURANCE PRODUCTS FUND III | 1.1M | $14.7M | 0.18% | Mar 31, 2026 |
| VANGUARD FTSE ALL-WORLD EX-US SMALL-CAP INDEX FUND VANGUARD INTERNATIONAL EQUITY INDEX FUNDS | 1.0M | $12.9M | 0.10% | Jul 31, 2026 |
| Avantis International Equity ETF American Century ETF Trust | 727.0K | $10.4M | 0.06% | May 31, 2026 |
| State Street(R) SPDR(R) S&P Kensho New Economies Composite ETF SPDR SERIES TRUST | 738.6K | $10.2M | 0.36% | Jun 30, 2026 |
| INTERNATIONAL CORE EQUITY 2 PORTFOLIO DFA INVESTMENT DIMENSIONS GROUP INC | 701.9K | $8.8M | 0.02% | Jul 31, 2026 |
| Schwab International Small-Cap Equity ETF SCHWAB STRATEGIC TRUST | 563.6K | $8.0M | 0.14% | May 31, 2026 |
Mutual funds and ETFs whose N-PORT filings list TAC's shares (CUSIP 89346D107), each fund at its latest report since Mar 7, 2026, largest positions first. Bonds, options and short positions are left out.
Activist & Passive Stakes
Schedule 13D / 13G beneficial-ownership filings
- BMO NESBITT BURNS INC.SCHEDULE 13G · passive (13G) · 4.0M shares1.4%
May 13, 2026 · ↗ - BMO ASSET MANAGEMENT INC.SCHEDULE 13G · passive (13G) · 4.7M shares1.6%
May 13, 2026 · ↗ - BMO PRIVATE INVESTMENT COUNSEL INC.SCHEDULE 13G · passive (13G) · 3,668 shares0.0%
May 13, 2026 · ↗ - BMO NESBITT BURNS SECURITIES LTD.SCHEDULE 13G · passive (13G) · 31.5K shares0.0%
May 13, 2026 · ↗ - BMO NESBITT BURNS INC. WEALTH MANAGEMENTSCHEDULE 13G · passive (13G) · 4.8M shares1.6%
May 13, 2026 · ↗ - BANK OF MONTREAL HOLDING INC.SCHEDULE 13G · passive (13G) · 8.8M shares3.0%
May 13, 2026 · ↗ - Bank of MontrealSCHEDULE 13G · passive (13G) · 17.8M shares6.0%
May 13, 2026 · ↗ - Abigail P. JohnsonSCHEDULE 13G/A · passive (13G) · 13.6M shares4.6%
May 6, 2026 · ↗ - FMR LLCSCHEDULE 13G/A · passive (13G) · 13.6M shares4.6%
May 6, 2026 · ↗ - Abigail P. JohnsonSCHEDULE 13G/A · passive (13G) · 13.6M shares4.6%
May 6, 2026 · ↗
Corporate Lobbying
Estimated quarterly lobbying spending reported under the LDA, filings naming TRANSALTA CORP as client
No lobbying filings found naming TRANSALTA CORP as the client.
Government Contracts
Federal awards to TRANSALTA CORP · USAspending
No federal contract awards found for TRANSALTA CORP.
U.S. Patents
Recent USPTO applications naming TRANSALTA CORP
No USPTO patent applications found for TRANSALTA CORP.
Annual Financials
From TAC's 10-K filings · XBRL
No annual XBRL figures on record for TAC. KeyVex's fundamentals cover about 130 large companies so far.
Stock Splits
Every split and reverse split in the price history
No stock splits in TAC's price history.
Material Events (8-K)
Corporate events filed with the SEC
No 8-K filings on record.
About TRANSALTA CORP
From SEC EDGAR company records
Industry (SIC 4911)Electric Services
SectorUtilities
HeadquartersCALGARY, Alberta, Canada
SEC CIK0001144800 ↗