Q3 2026 13F · SEC CIK 2053050

Louisbourg Investments Inc.

Institutional asset managerFiled 2026-10-20 for Q3 2026. Open the filing ↗ · All SEC filings ↗

Reported 13F value: $545.3M
Reported positions: 209
Holdings vs S&P 500, 3 yrs: —
Assets under management: $2.3B

Louisbourg Investments Inc. is an institutional asset manager that reported 209 positions worth $545.3M in its Q3 2026 13F, filed 2026-10-20. Its largest holdings were Canadian Natl Ry Co (CNI, 4.9%), Shopify Inc (SHOP, 3.3%), Microsoft Corp (MSFT, 3.2%).

Louisbourg Investments Inc. holdings largest 50 of 209 positions.

Weights are shares of the filer's total reported 13F value, compared with Q2 2026. Share changes may reflect splits; weight changes also reflect price moves. A 13F shows long US-listed positions only, up to 135 days after the fact.

Louisbourg Investments Inc. 13F holdings
Stock	% of 13F value	Q2 2026	Shares	Share change	Reported value
CNICanadian Natl Ry Co	4.9%	5.5%	225,172	-10.6%	$26.9M
SHOPShopify Inc	3.3%	3.2%	120,336	-21.7%	$17.9M
MSFTMicrosoft Corp	3.2%	2.3%	41,557	+0.6%	$17.2M
TSMTaiwan Semiconductor Manufac	2.8%	2.3%	38,457	+26.0%	$15.2M
CVECenovus Energy Inc	2.7%	2.2%	476,223	-3.1%	$14.8M
SUSuncor Energy Inc New	2.7%	2.4%	216,617	-9.0%	$14.7M
IVVIshares Tr	2.4%	2.4%	16,920	-1.9%	$13.0M
GOOGAlphabet Inc	2.3%	2.5%	44,870	-0.7%	$12.7M
BNBrookfield Corp	2.1%	2.1%	310,924	+15.3%	$11.4M
AMZNAmazon Com Inc	1.9%	1.8%	52,214	+4.7%	$10.4M
VOOVanguard Index Fds	1.9%	1.8%	14,417	+0.5%	$10.1M
AVGOBroadcom Inc	1.8%	1.7%	34,311	+19.9%	$9.9M
WPMWheaton Precious Metals Corp	1.8%	1.4%	72,610	+11.3%	$9.7M
IEFAIshares Tr	1.8%	1.8%	99,389	+0.9%	$9.6M
METAMeta Platforms Inc	1.7%	1.4%	16,126	-6.4%	$9.4M
CRMSalesforce Inc	1.7%	1.6%	48,717	-28.5%	$9.1M
GILGildan Activewear Inc	1.6%	1.5%	207,050	+34.9%	$8.8M
CIGIColliers Intl Group Inc.	1.6%	1.5%	94,813	+9.1%	$8.5M
BGSIBoyd Group Services Inc	1.5%	1.2%	101,197	+48.7%	$8.0M
TECKTeck Resources Ltd	1.4%	2.7%	117,642	-52.4%	$7.8M
TMUST-Mobile US Inc	1.4%	1.4%	60,189	+6.7%	$7.6M
NTRNutrien Ltd	1.4%	1.4%	107,929	-12.5%	$7.6M
OROr Royalties Inc.	1.3%	1.0%	212,505	+25.4%	$7.3M
STNStantec Inc	1.3%	1.3%	106,435	+5.1%	$7.2M
TRIThomson Reuters Corp	1.3%	1.3%	70,964	-20.7%	$6.9M
BBBlackberry Ltd	1.3%	1.6%	762,100	+12.2%	$6.9M
OTISOtis Worldwide Corp	1.2%	1.1%	133,325	+29.4%	$6.7M
LSPDLightspeed Commerce Inc	1.2%	1.1%	676,164	+17.0%	$6.6M
BSXBoston Scientific Corp	1.2%	1.1%	194,330	+6.2%	$6.6M
MEOHMethanex Corp	1.1%	0.9%	105,920	-2.7%	$6.2M
BDXBecton Dickinson & Co	1.1%	1.0%	44,940	-7.0%	$6.2M
CNQCanadian Nat Res Ltd Med Ter	1.1%	1.3%	129,628	-26.6%	$6.1M
BRK-ABerkshire Hathaway Inc Del	1.1%	1.1%	8	+0.0%	$6.0M
RCIRogers Communications Inc	1.0%	—	179,077	—	$5.5M
PBAPembina Pipeline Corp	1.0%	1.2%	123,229	-12.9%	$5.5M
JJacobs Solutions Inc	1.0%	1.0%	49,198	-7.7%	$5.4M
DISDisney Walt Co	1.0%	0.8%	65,156	+10.9%	$5.4M
BNSBank Nova Scotia B C	1.0%	1.0%	58,102	-7.3%	$5.3M
CSGPCostar Group Inc	1.0%	1.0%	244,425	-4.6%	$5.2M
COPConocophillips	0.9%	—	51,146	—	$4.9M
TOSTToast Inc	0.9%	—	220,811	—	$4.9M
WTWWillis Towers Watson PLC Ltd	0.9%	0.9%	21,429	-14.3%	$4.8M
RYRoyal Bk Cda	0.9%	1.0%	24,224	-5.8%	$4.8M
URIUnited Rentals Inc	0.9%	—	5,795	—	$4.7M
DSGXDescartes Systems Group	0.9%	1.1%	58,115	-30.2%	$4.7M
VWOVanguard Intl Equity Index F	0.8%	0.9%	77,261	-0.0%	$4.6M
ABTAbbott Laboratories	0.8%	0.9%	58,775	-13.1%	$4.5M
FNVFranco Nev Corp	0.8%	1.0%	18,885	-28.4%	$4.5M
FSVFirst Service Corp	0.8%	0.8%	33,297	+5.7%	$4.3M
GFRGreenfire Resources Ltd	0.8%	—	730,816	—	$4.1M

What Louisbourg Investments Inc. bought and sold in Q3 2026, against Q2 2026.

New positions

Q2 2026's filing was too long to tell new positions apart.

Added to

BGSI Boyd Group Services Inc+48.7% shares
GIL Gildan Activewear Inc+34.9% shares
OTIS Otis Worldwide Corp+29.4% shares
TSM Taiwan Semiconductor Manufac+26.0% shares
OR Or Royalties Inc.+25.4% shares
AVGO Broadcom Inc+19.9% shares
LSPD Lightspeed Commerce Inc+17.0% shares
BN Brookfield Corp+15.3% shares

Reduced

TECK Teck Resources Ltd-52.4% shares
DSGX Descartes Systems Group-30.2% shares
CRM Salesforce Inc-28.5% shares
FNV Franco Nev Corp-28.4% shares
CNQ Canadian Nat Res Ltd Med Ter-26.6% shares
SHOP Shopify Inc-21.7% shares
TRI Thomson Reuters Corp-20.7% shares
WTW Willis Towers Watson PLC Ltd-14.3% shares

Left the top 50

Share counts compared with the Q2 2026 13F; a split also changes share counts. The latest filing lists more than 50 positions, so a position that left the top 50 may still be held.

How the holdings did against the S&P 500.

1 year: +17.5% /yr; S&P 500 +20.1%
3 years: —
5 years: —

A portfolio of the filer's 20 largest 13F positions, weighted by value, bought the trading day after each 13F was filed and held until the next one was: what copying this filer could have earned. 13Fs show long US-listed positions only, so this is an estimate of the stock picks, not the fund's reported returns.

Reported 13F value by quarter.

13F value by quarter
Quarter	13F value	Positions
Q3 2026	$545.3M	209
Q2 2026	$542.1M	210
Q1 2026	$528.8M	216
Q4 2025	$501.9M	213
Q3 2025	$458.2M	208
Q2 2025	$424.3M	200
Q1 2025	$368.0M	180
Q4 2024	$381.0M	168
Q3 2024	$395.4M	173

Questions about Louisbourg Investments Inc.'s portfolio

What stocks does Louisbourg Investments Inc. own?

Louisbourg Investments Inc.'s latest 13F, for Q3 2026 and filed Oct 20, 2026, lists 209 positions worth $545.3M. The largest are Canadian Natl Ry Co (CNI) at 4.9%, Shopify Inc (SHOP) at 3.3%, Microsoft Corp (MSFT) at 3.2%, Taiwan Semiconductor Manufac (TSM) at 2.8% and Cenovus Energy Inc (CVE) at 2.7%.

What did Louisbourg Investments Inc. buy last quarter?

In Q3 2026, Louisbourg Investments Inc. added Boyd Group Services Inc (BGSI) (+48.7% shares), Gildan Activewear Inc (GIL) (+34.9% shares) and Otis Worldwide Corp (OTIS) (+29.4% shares), compared with its Q2 2026 filing.

What did Louisbourg Investments Inc. sell last quarter?

In Q3 2026, Louisbourg Investments Inc. cut from its top 50 Mda Space Ltd (MDA), cut from its top 50 Restaurant Brands Intl Inc (QSR), cut from its top 50 Hudbay Minerals Inc (HBM), cut from its top 50 First Majestic (AG), cut from its top 50 Toronto Dominion Bk Ont (TD), Teck Resources Ltd (TECK) (-52.4% shares), Descartes Systems Group (DSGX) (-30.2% shares) and Salesforce Inc (CRM) (-28.5% shares), compared with its Q2 2026 filing.

When is Louisbourg Investments Inc.'s next 13F filing due?

13F filings are due 45 days after each quarter ends. Louisbourg Investments Inc.'s filing for the quarter ending Dec 31, 2026 is due by Feb 14, 2027; this page updates the day after it is published.

How much money does Louisbourg Investments Inc. manage?

Louisbourg Investments Inc. reported $2.3B of regulatory assets under management on its latest SEC Form ADV. Its 13F, which covers only US-listed stocks and options, totals $545.3M.