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The Open Book

Temasek files what GIC never has to: a full quarterly holdings report

Temasek does the thing GIC has never had to do: every quarter it files a Form 13F listing its US-listed equity positions, issuer by issuer, with dollar values and share counts. Below is that filing, read from the primary document — 180 positions worth US$36.70bn at 2026-09-30, and 88 quarters of history behind it.

The latest book filed

US$36.70bn
180 US-listed positions at 2026-09-30 · filed 2026-10-28
Top ten are 53% of the book. the filing itself ↗

Twenty-five largest holdings filed

IssuerValueShare of bookSharesSince last quarter
BLACKROCK INC US$5.39bn 14.7% 5,092,825 held
ALPHABET INC US$2.49bn 6.8% 7,235,329 added from 7,076,378
VISA INC US$2.19bn 6.0% 6,106,751 trimmed from 6,597,214
NVIDIA CORPORATION US$1.78bn 4.9% 7,799,850 trimmed from 8,634,723
MASTERCARD INCORPORATED US$1.71bn 4.7% 3,098,313 trimmed from 3,253,602
MICROSOFT CORP US$1.34bn 3.7% 2,616,212 held
BROADCOM INC US$1.23bn 3.3% 3,500,674 trimmed from 3,740,773
AMAZON COM INC US$1.21bn 3.3% 4,869,713 added from 4,570,184
SPACE EXPLORATION TECHN CORP US$1.16bn 3.2% 7,686,339 trimmed from 9,831,945
THERMO FISHER SCIENTIFIC INC US$814m 2.2% 1,206,213 held
ICICI BK LTD US$804m 2.2% 29,195,789 held
ALPHABET INC US$681m 1.9% 2,000,000 held
DOORDASH INC US$635m 1.7% 3,461,501 held
INTAPP INC US$621m 1.7% 17,146,805 held
S&P GLOBAL INC US$619m 1.7% 1,570,043 added from 1,506,913
SEA LTD US$559m 1.5% 5,744,587 held
HDFC BANK LTD US$468m 1.3% 20,935,515 added from 15,305,232
INTEL CORP US$443m 1.2% 3,684,210 new
TPG INC US$384m 1.0% 8,697,241 trimmed from 10,163,065
AIRBNB INC US$357m 1.0% 2,222,194 held
ROBLOX CORP US$347m 0.9% 8,188,943 added from 7,777,760
ERMENEGILDO ZEGNA N V US$341m 0.9% 27,242,276 held
COMFORT SYS USA INC US$332m 0.9% 200,604 added from 124,436
TECK RESOURCES LTD US$325m 0.9% 4,937,753 trimmed from 5,685,453
KKR & CO INC US$319m 0.9% 3,498,145 trimmed from 3,669,339
Bars are each position's share of the US book, scaled to the largest. SEC EDGAR Form 13F-HR filed by Temasek Holdings (Private) Ltd, CIK 0001021944. Movement compares share counts with the previous quarter's filing; a 2% band is treated as unchanged.

Gone since last quarter filed

14 positions present in the previous filing do not appear in this one. The largest:

IssuerLast reported valueShares held
ARISTA NETWORKS INCUS$114m669,072
APPLOVIN CORPUS$61m118,625
KANZHUN LIMITEDUS$56m4,345,925
MARSH & MCLENNAN COS INCUS$54m325,980
DANAHER CORP DELUS$54m281,764
GLOBAL E ONLINE LTDUS$38m1,095,454
YORK SPACE SYSTEMS INCUS$25m1,027,774
DPC HOLDINGS PLCUS$22m450,000
Disappearing from a 13F means the position was sold, fell below reporting relevance, or moved to an entity that files separately. The filing does not say which.

88 quarters of the US book filed

37.3bn 04Q4: 1.2bn04Q405Q1: 1.3bn05Q2: 1.6bn05Q3: 1.7bn05Q4: 1.5bn06Q1: 1.5bn06Q2: 1.1bn06Q3: 1.3bn06Q4: 1.6bn06Q407Q1: 2.3bn07Q2: 2.5bn07Q3: 2.8bn07Q4: 7.5bn08Q1: 5bn08Q2: 4.4bn08Q3: 6.8bn08Q4: 3.1bn08Q409Q1: 0.4bn09Q2: 0.5bn09Q3: 0.4bn09Q4: 0.7bn10Q1: 0.6bn10Q2: 0.6bn10Q3: 0.7bn10Q4: 1bn10Q411Q1: 0.6bn11Q2: 0.4bn11Q3: 0.4bn11Q4: 2.2bn12Q1: 2.8bn12Q2: 3.7bn12Q3: 3.5bn12Q4: 3.7bn12Q413Q1: 3.5bn13Q2: 3.9bn13Q3: 3.6bn13Q4: 4.8bn14Q1: 6.5bn14Q2: 6.7bn14Q3: 9.4bn14Q4: 9.6bn14Q415Q1: 13.3bn15Q2: 16bn15Q3: 10.5bn15Q4: 13.2bn16Q1: 12.7bn16Q2: 12.8bn16Q3: 12.3bn16Q4: 12.5bn16Q417Q1: 13.4bn17Q2: 15.5bn17Q3: 17.2bn17Q4: 16.3bn18Q1: 18.2bn18Q2: 19bn18Q3: 17.2bn18Q4: 14.5bn18Q419Q1: 14.4bn19Q2: 14bn19Q3: 13.6bn19Q4: 15.3bn20Q1: 13.6bn20Q2: 16.7bn20Q3: 19.7bn20Q4: 23.3bn20Q421Q1: 25.5bn21Q2: 29.9bn21Q3: 28.6bn21Q4: 27.7bn22Q1: 23.7bn22Q2: 18.3bn22Q3: 16.7bn22Q4: 17.1bn22Q423Q1: 16.9bn23Q2: 17.3bn23Q3: 16.8bn23Q4: 17.9bn24Q1: 18.1bn24Q2: 21.5bn24Q3: 24.7bn24Q4: 25.4bn24Q425Q1: 24.8bn25Q2: 26.2bn25Q3: 29bn25Q4: 31.6bn26Q1: 30.5bn26Q2: 37.3bn26Q3: 36.7bn
US$ billions, 2004-12-31 to 2026-09-30. The near-empty stretch around 2009 is real: that quarter's filing lists four positions. The step up at the end of 2011 is a change in what Temasek's filing entity reported, not a sudden purchase — the series measures disclosure, not the portfolio. 15 amended or superseded filings were set aside, keeping one filing per quarter.

What changed this quarter filed

Set the 2026-09-30 filing beside the 2026-06-30 one and the quarter reads as a rebuild rather than a drift: 17 positions entered, 58 were added to, 75 trimmed, 30 held unchanged, and 14 left the book entirely. The positions that entered were worth US$0.75bn at quarter end; those that left had been worth US$0.48bn the quarter before. The book went from 177 names and US$37.25bn to 180 names and US$36.70bn.

Largest entries

CompanyValue at 2026-09
INTEL CORPUS$443m
EATON CORP PLCUS$98m
PASQAL HLDG SAUS$76m
SPDR SERIES TRUSTUS$55m
AMPHENOL CORPUS$33m
FRANCO NEV CORPUS$14m

Largest exits

CompanyValue at 2026-06
ARISTA NETWORKS INCUS$114m
APPLOVIN CORPUS$61m
KANZHUN LIMITEDUS$56m
MARSH & MCLENNAN COS INCUS$54m
DANAHER CORP DELUS$54m
GLOBAL E ONLINE LTDUS$38m
Matched by CUSIP between the two most recent 13F information tables; the same company can appear under two share classes. Entry and exit values are as filed — a position that entered at US$443m was not necessarily bought for that amount in the quarter, and the filing cannot say. Each row's tag in the full table above (NEW, ADDED, TRIMMED) is the same classification.

From one bet to a book filed

Concentration tells a twenty-year story the totals hide. In 2004 the filing behaved like 2.8 equal-sized positions — 125 names on paper, almost all the money in one or two. Today it behaves like 23: the top ten hold 53% of the book, down from 94%. The US book stopped being a place Temasek parked one legacy stake and became a portfolio.

25 04: 2.80405: 405: 4.306: 1.906: 207: 4.707: 2.20708: 2.308: 1.409: 1.109: 3.510: 2.810: 4.71011: 4.511: 3.112: 4.212: 4.213: 5.513: 4.51314: 5.214: 6.615: 6.215: 5.716: 5.116: 6.11617: 5.717: 6.218: 6.918: 1019: 819: 6.71920: 11.320: 13.821: 18.121: 1922: 18.622: 14.82223: 14.923: 12.924: 16.224: 14.725: 14.925: 19.12526: 2526: 23
Effective number of positions per quarter — the inverse Herfindahl 1/Σw², the count of equal-sized positions with the same concentration. Computed from each quarter's parsed holdings; the step changes around 2011 and 2013 track the same disclosure-scope changes flagged on the chart above.

The next page, and the longest accumulation inferred

Two dated claims, both checkable. First: the filing covering 2026-12-31 is due by 2027-02-14 — Form 13F is due within 45 days of quarter end, so the next page of this book has a deadline. Second, the book's largest position was not bought, it was accumulated: BlackRock first appears in 2020-06-30 and has been built, quarter by quarter, to US$5.39bn — the patience of the process is the insight.

5.5 20: 3.22020: 4.321: 4.621: 4.722: 3.12222: 3.623: 3.523: 4.124: 42424: 5.225: 5.325: 5.526: 52626: 5.4
BlackRock position value per quarter, read directly from each raw 13F information table (XML-era filings). Values are as-filed market values, so the rise braids share purchases with the share price itself — the filings alone cannot unbraid them.

Even the open book is a keyhole

Temasek's own published net portfolio value is S$518bn at 2026-03-31. At roughly 0.78 US dollars to the Singapore dollar that is about US$404.04bn — so this entire 13F, every position on this page, accounts for around 9% of Temasek.

The rest is unlisted companies, non-US listings, and direct stakes that no quarterly filing reaches. So the district is not “Temasek revealed”. It is the most detailed window that exists into any part of Singapore's reserves — and it still shows a small corner. The Glass Pool is the same window pointed at GIC, where it is narrower again: no values at all, and only stakes above 5%.

What the filing showsTemasek · 13FGIC · 13D/13G only
Cadenceevery quarter, on a scheduleonly when a stake crosses 5%
Dollar valuesyes, per positionnever
Completeness of US equitiesall reportable positionsonly the ≥5% ones
Positions visible180 this quarter141 companies across 30 years
Share of the whole entity≈ 9% of published NPVunknowable — the denominator is secret
The last row is the point of this chart. Temasek's window can be measured against a published total. GIC's cannot, because there is no published total to measure against.