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TransAlta
TAC

162 hedge funds and large institutions have $3.05B invested in TransAlta in 2025 Q3 according to their latest regulatory filings, with 23 funds opening new positions, 61 increasing their positions, 55 reducing their positions, and 30 closing their positions.

New
Increased
Maintained
Reduced
Closed

200% more call options, than puts

Call options by funds: $40.5M | Put options by funds: $13.5M

27% more capital invested

Capital invested by funds: $2.41B → $3.05B (+$643M)

11% more repeat investments, than reductions

Existing positions increased: 61 | Existing positions reduced: 55

0% more funds holding in top 10

Funds holding in top 10: 6 → 6 (0)

0.04% less ownership

Funds ownership: 75.22% → 75.18% (-0.04%)

4% less funds holding

Funds holding: 169 → 162 (-7)

23% less first-time investments, than exits

New positions opened: 23 | Existing positions closed: 30

Holders
162
Holders Change
-7
Holders Change %
-4.14%
% of All Funds
2.13%
Holding in Top 10
6
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.08%
New
23
Increased
61
Reduced
55
Closed
30
Calls
$40.5M
Puts
$13.5M
Net Calls
+$27M
Net Calls Change
+$1.85M

Top Buyers

Rank Fund Capital Flow
1
Fidelity Investments
Fidelity Investments
Massachusetts
+$70.2M
2
ACG
Aventail Capital Group
New York
+$34.8M
3
RCMU
Rokos Capital Management (UK)
United Kingdom
+$24.5M
4
BNP Paribas Financial Markets
BNP Paribas Financial Markets
France
+$18.5M
5
UBS Group
UBS Group
Switzerland
+$17.7M

Top Sellers

Rank Fund Capital Flow
1
Goldman Sachs
Goldman Sachs
New York
-$63.4M
2
Millennium Management
Millennium Management
New York
-$62.8M
3
CIBC World Market
CIBC World Market
Ontario, Canada
-$14.1M
4
Royal Bank of Canada
Royal Bank of Canada
Ontario, Canada
-$12.2M
5
Morgan Stanley
Morgan Stanley
New York
-$9.32M
Name Holding Trade Value Shares
Change 		Change in
Stake
Manulife (Manufacturers Life Insurance)
51
Manulife (Manufacturers Life Insurance)
Ontario, Canada
$4.12M +$1.11M +89,931 +42%
AllianceBernstein
52
AllianceBernstein
Tennessee
$3.98M +$2.89M +234,987 +416%
TI
53
Trexquant Investment
Connecticut
$3.75M -$564K -45,864 -14%
Barclays
54
Barclays
United Kingdom
$3.73M -$2.88M -234,097 -46%
CCM
55
Cinctive Capital Management
New York
$3.61M +$2.13M +173,281 +190%
ACA
56
AYAL Capital Advisors
Ontario, Canada
$3.5M +$3.15M +256,200 New
CIBC Asset Management
57
CIBC Asset Management
Ontario, Canada
$3.44M +$1.21K +98 +0%
TC
58
Tacita Capital
Ontario, Canada
$3M – – –
SC
59
Scotia Capital
Ontario, Canada
$2.99M -$1.2M -97,298 -31%
N
60
Nuveen
North Carolina
$2.91M – – –
SAMU
61
SONA Asset Management (US)
New York
$2.73M – – –
CM
62
Caption Management
Oklahoma
$2.65M +$1.25M +101,508 +110%
Capstone Investment Advisors
63
Capstone Investment Advisors
New York
$2.63M +$1.97M +160,419 +499%
Lazard Asset Management
64
Lazard Asset Management
New York
$2.55M +$2.3M +186,700 New
PCM
65
Pinnbrook Capital Management
New York
$2.35M +$2.12M +172,238 New
LOAMU
66
Lombard Odier Asset Management (USA)
New York
$2.34M +$2.1M +171,000 New
HM
67
Heronetta Management
New York
$2.32M +$455K +37,000 +44%
Geode Capital Management
68
Geode Capital Management
Massachusetts
$2.26M +$142K +11,517 +8%
CPCM
69
Cardinal Point Capital Management
Ontario, Canada
$2.25M -$103K -8,400 -5%
Blackstone Inc
70
Blackstone Inc
New York
$2.22M +$2M +162,266 New
BCIM
71
British Columbia Investment Management
British Columbia, Canada
$2.1M -$55.7K -4,532 -3%
BHCM
72
Brevan Howard Capital Management
Jersey
$1.95M +$278K +22,620 +19%
Two Sigma Investments
73
Two Sigma Investments
New York
$1.82M +$1.15M +93,573 +238%
SNT
74
SIG North Trading
Pennsylvania
$1.58M -$196K -15,901 -12%
AAP
75
Ardsley Advisory Partners
Connecticut
$1.57M +$123K +10,000 +10%
1 2
3
4 5

TAC Hedge Fund Activity: Q3 2025 in Review

162 of the 7,621 institutional investors tracked by Wall St. Rank reported a position in TransAlta (TAC) for Q3 2025, worth a combined $3.05B — up 27% from $2.41B a quarter earlier.

Sellers outnumbered buyers: 30 funds closed out of TAC and 23 opened new positions — a net loss of 7 holders — while 55 trimmed existing stakes and 61 added.

The largest buyer was Fidelity Investments, adding an estimated $70.2M. The largest seller was Goldman Sachs, cutting an estimated $63.4M.

  • 162 institutional investors held TransAlta (TAC) as of Q3 2025, down from 169 in Q2 2025.
  • Funds reported $3.05B of TransAlta stock for Q3 2025, up 27% quarter-over-quarter.
  • 23 funds opened new TransAlta positions in Q3 2025 and 30 closed out, a net change of -7 holders.
  • The largest TransAlta buyer in Q3 2025 was Fidelity Investments, an estimated $70.2M added.
  • The largest TransAlta seller in Q3 2025 was Goldman Sachs, an estimated $63.4M sold.

Based on aggregated 13F filings for Q3 2025.