Buteon Institutional Intelligence

Harvard Management Company holdings

Endowment investment manager. Reported Form 13F holdings as of Jun 30, 2026—with the evidence and the limits kept in view.

Position date · Q2 2026
Jun 30, 2026
When the portfolio was measured.
Disclosure date
Aug 14, 2026
When this filing became public.
Sources reviewed
Sep 25, 2026
Next expected season: November 2026.

Reported positions may have changed since Jun 30, 2026. Coverage is curated, not universal or real-time.

In 15 seconds

What Harvard Management Company reported

What was reported
19 source rows. No PUT/CALL-designated rows.
The clearest takeaway
SPACE EXPLORATION TECHN CORP is the largest individual row without a PUT/CALL designation, at $2,210,091,186. Inspect the table.
Why it may matter
One row carries 51.8423% of everything this filing reports — a concentration that would be unusual in a diversified book.
What it does not prove
Positions held today, trade dates, conviction, or a complete view of the manager’s assets and risks.

Legal filer: HARVARD MANAGEMENT CO INC · CIK 1082621 · Form 13F file 028-03879

Buteon’s filing assessment
What stands out
19 filed rows provide a dated record of disclosed exposure.
How readable is it?
The reported quantities can be read directly. Inferring trades still requires separate comparison checks.
Is it fresh?
Latest complete reporting period, but measured on Jun 30, 2026. Useful as a disclosure record; stale as a claim about positions held today.
The reported record

Largest rows without a PUT/CALL designation

Ranked by reported value; up to 20 individual source rows. Repeated securities stay separate because manager relationships can overlap. SH means shares; PRN means principal amount. This section can include instruments other than common stock.

Reported rows · position date Jun 30, 2026
Reported securityShares / principalReported valueQ/Q sharesEvidence
SPACE EXPLORATION TECHN CORPCLASS A COM STK · No PUT/CALL
CUSIP 84615Q103
12,935,100 SHReported share quantity$2,210,091,186As of Jun 30, 2026Not comparableCorporate-action or row-identity review not completed; no trading direction inferred.Filed row 17
Row provenanceDiscretion: SOLE
Other manager: None listed
Voting: sole 12,935,100, shared 0, none 0
0001193125-26-352412
TAIWAN SEMICONDUCTOR MANUFACSPONSORED ADS · No PUT/CALL
CUSIP 874039100
732,022 SHReported share quantity$349,591,747As of Jun 30, 2026Not comparableCorporate-action or row-identity review not completed; no trading direction inferred.Filed row 19
Row provenanceDiscretion: SOLE
Other manager: None listed
Voting: sole 732,022, shared 0, none 0
0001193125-26-352412
CEREBRAS SYSTEMS INCCOM CL A · No PUT/CALL
CUSIP 15675D103
1,081,283 SHReported share quantity$238,963,543As of Jun 30, 2026Not comparableCorporate-action or row-identity review not completed; no trading direction inferred.Filed row 6
Row provenanceDiscretion: SOLE
Other manager: None listed
Voting: sole 1,081,283, shared 0, none 0
0001193125-26-352412
AMAZON COM INCCOM · No PUT/CALL
CUSIP 023135106
982,839 SHReported share quantity$234,249,847As of Jun 30, 2026Not comparableCorporate-action or row-identity review not completed; no trading direction inferred.Filed row 3
Row provenanceDiscretion: SOLE
Other manager: None listed
Voting: sole 982,839, shared 0, none 0
0001193125-26-352412
ALPHABET INCCAP STK CL A · No PUT/CALL
CUSIP 02079K305
462,160 SHReported share quantity$165,162,119As of Jun 30, 2026Not comparableCorporate-action or row-identity review not completed; no trading direction inferred.Filed row 2
Row provenanceDiscretion: SOLE
Other manager: None listed
Voting: sole 462,160, shared 0, none 0
0001193125-26-352412
NVIDIA CORPORATIONCOM · No PUT/CALL
CUSIP 67066G104
787,721 SHReported share quantity$157,615,095As of Jun 30, 2026Not comparableCorporate-action or row-identity review not completed; no trading direction inferred.Filed row 15
Row provenanceDiscretion: SOLE
Other manager: None listed
Voting: sole 787,721, shared 0, none 0
0001193125-26-352412
ISHARES GOLD TRISHARES NEW · No PUT/CALL
CUSIP 464285204
1,980,085 SHReported share quantity$149,516,218As of Jun 30, 2026Not comparableCorporate-action or row-identity review not completed; no trading direction inferred.Filed row 10
Row provenanceDiscretion: SOLE
Other manager: None listed
Voting: sole 1,980,085, shared 0, none 0
0001193125-26-352412
MICROSOFT CORPCOM · No PUT/CALL
CUSIP 594918104
392,265 SHReported share quantity$146,322,690As of Jun 30, 2026Not comparableCorporate-action or row-identity review not completed; no trading direction inferred.Filed row 13
Row provenanceDiscretion: SOLE
Other manager: None listed
Voting: sole 392,265, shared 0, none 0
0001193125-26-352412
BROADCOM INCCOM · No PUT/CALL
CUSIP 11135F101
338,346 SHReported share quantity$127,810,202As of Jun 30, 2026Not comparableCorporate-action or row-identity review not completed; no trading direction inferred.Filed row 5
Row provenanceDiscretion: SOLE
Other manager: None listed
Voting: sole 338,346, shared 0, none 0
0001193125-26-352412
META PLATFORMS INCCL A · No PUT/CALL
CUSIP 30303M102
214,504 SHReported share quantity$120,827,958As of Jun 30, 2026Not comparableCorporate-action or row-identity review not completed; no trading direction inferred.Filed row 12
Row provenanceDiscretion: SOLE
Other manager: None listed
Voting: sole 214,504, shared 0, none 0
0001193125-26-352412
ISHARES BITCOIN TRUST ETFSHS BEN INT · No PUT/CALL
CUSIP 46438F101
3,044,612 SHReported share quantity$101,355,133As of Jun 30, 2026Not comparableCorporate-action or row-identity review not completed; no trading direction inferred.Filed row 9
Row provenanceDiscretion: SOLE
Other manager: None listed
Voting: sole 3,044,612, shared 0, none 0
0001193125-26-352412
NETFLIX INC.COM · No PUT/CALL
CUSIP 64110L106
1,104,000 SHReported share quantity$78,825,600As of Jun 30, 2026Not comparableCorporate-action or row-identity review not completed; no trading direction inferred.Filed row 14
Row provenanceDiscretion: SOLE
Other manager: None listed
Voting: sole 1,104,000, shared 0, none 0
0001193125-26-352412
BOOKING HOLDINGS INCCOM · No PUT/CALL
CUSIP 09857L108
414,600 SHReported share quantity$73,898,304As of Jun 30, 2026Not comparableCorporate-action or row-identity review not completed; no trading direction inferred.Filed row 4
Row provenanceDiscretion: SOLE
Other manager: None listed
Voting: sole 414,600, shared 0, none 0
0001193125-26-352412
FERVO ENERGY COCL A COM · No PUT/CALL
CUSIP 31556C106
1,255,365 SHReported share quantity$36,694,319As of Jun 30, 2026Not comparableCorporate-action or row-identity review not completed; no trading direction inferred.Filed row 7
Row provenanceDiscretion: SOLE
Other manager: None listed
Voting: sole 1,255,365, shared 0, none 0
0001193125-26-352412
LUMENTUM HLDGS INCCOM · No PUT/CALL
CUSIP 55024U109
27,243 SHReported share quantity$23,376,129As of Jun 30, 2026Not comparableCorporate-action or row-identity review not completed; no trading direction inferred.Filed row 11
Row provenanceDiscretion: SOLE
Other manager: None listed
Voting: sole 27,243, shared 0, none 0
0001193125-26-352412
SPDR GOLD TRGOLD SHS · No PUT/CALL
CUSIP 78463V107
58,862 SHReported share quantity$21,683,584As of Jun 30, 2026Not comparableCorporate-action or row-identity review not completed; no trading direction inferred.Filed row 18
Row provenanceDiscretion: SOLE
Other manager: None listed
Voting: sole 58,862, shared 0, none 0
0001193125-26-352412
GENERATE BIOMEDICINES INCCOM SHS · No PUT/CALL
CUSIP 370920100
1,111,100 SHReported share quantity$18,744,257As of Jun 30, 2026Not comparableCorporate-action or row-identity review not completed; no trading direction inferred.Filed row 8
Row provenanceDiscretion: SOLE
Other manager: None listed
Voting: sole 1,111,100, shared 0, none 0
0001193125-26-352412
10X GENOMICS INCCL A COM · No PUT/CALL
CUSIP 88025U109
170,000 SHReported share quantity$6,517,800As of Jun 30, 2026Not comparableCorporate-action or row-identity review not completed; no trading direction inferred.Filed row 1
Row provenanceDiscretion: SOLE
Other manager: None listed
Voting: sole 170,000, shared 0, none 0
0001193125-26-352412
PURECYCLE TECHNOLOGIES INC*W EXP 03/17/202 · No PUT/CALL
CUSIP 74623V111
714,285 SHReported share quantity$1,857,141As of Jun 30, 2026Not comparableCorporate-action or row-identity review not completed; no trading direction inferred.Filed row 16
Row provenanceDiscretion: SOLE
Other manager: None listed
Voting: sole 714,285, shared 0, none 0
0001193125-26-352412

Showing 19 of 19 non-option source rows. Read the complete information table.

Options, separately

This filing reports no PUT/CALL-designated rows. That does not establish that the manager has no derivatives outside Form 13F.

One filing lesson

Harvard’s biggest reported holding is SpaceX. That does not mean it just bought $2.2 billion.

Each row describes the end of a quarter. Changes in reportability, instrument terms, manager assignments and corporate actions can make an apparent change misleading.

Interpretation, not an investment recommendation.

What changed—and what needs review

The current and prior source tables reconcile, but corporate-action and manager-row review is not complete. We do not label increases, reductions, new positions or exits yet. “Not comparable” means the directional conclusion is withheld, not that nothing changed.

Composition of this filing

By number of filed rows

Denominator: 19 rows · same filing

Without PUT/CALL100.00%19 rows
Held calls0.00%0 rows
Held puts0.00%0 rows

Verified derivation from 0001193125-26-352412. Source rows, without cross-manager aggregation.

By gross reported value

Denominator: $4,263,102,872 · same filing

Without PUT/CALL100.00%$4,263,102,872
Held calls0.00%$0
Held puts0.00%$0

Verified derivation from 0001193125-26-352412. Source rows, without cross-manager aggregation.

Quarter archive

Authoritative filing · 13F-HR

Position date Jun 30, 2026 · filed Aug 14, 2026

Accepted timestamp (SEC): 2026-08-14T20:30:03.000Z

0001193125-26-352412

Cover page · Information table

19 source rows · $4,263,102,872 gross reported table value. Both reconcile to the cover; this is not assets under management.

Included managers and report type

13F HOLDINGS REPORT · File 028-03879

No included other managers listed.

Q1 2026 · positions as of Mar 31, 2026

Previous reporting period · 13F-HR

Position date Mar 31, 2026 · filed May 15, 2026

Accepted timestamp (SEC): 2026-05-15T20:06:04.000Z

0001193125-26-226658

Cover page · Information table

17 source rows · $1,815,664,370 gross reported table value. Both reconcile to the cover; this is not assets under management.

Included managers and report type

13F HOLDINGS REPORT · File 028-03879

No included other managers listed.

Prior-period rows are retained in the evidence pack. Compare only after corporate-action clearance.

No Form 13F-HR/A amendment was found for either quarter in EDGAR submissions reviewed through Sep 25, 2026. An amendment filed later could change these rows.

Companies in this record

Related portfolios

Institutions that reported the most of the same covered companies this quarter.

Filing Reality Check · eleven evidence questions
The instrument every dossier uses

The eleven questions, in the fixed order.

#QuestionAnswerEvidence class
1What was reported19 individual information-table rows. Options remain separate.Filed fact
2Who filed itHARVARD MANAGEMENT CO INC, CIK 1082621, file 028-03879.Filed fact
3When it was trueJun 30, 2026Filed fact
4When it went publicAug 14, 2026Filed fact
5Filed factsQuantities, values, security classes, option sides, discretion, voting fields and included managers.Filed fact
6What we calculatedRow rankings and composition percentages against this filing’s own totals; only specifically cleared share comparisons.Verified derivation
7Instrument & rulesForm 13F is a delayed record of reportable securities. It omits short stock and written options.Interpretation
8How clear, and whyThe source rows are readable; intra-quarter trades and present holdings remain unknown.Interpretation
9What it can't showTrade dates, full assets under management, current positions, net exposure or conviction.Unresolved
10What would helpCorporate-action review, manager-relationship clearance and newer primary disclosures.Interpretation
11The filings behind itCurrent 0001193125-26-352412; prior 0001193125-26-226658. No Form 13F-HR/A amendment was found for either quarter in EDGAR submissions reviewed through Sep 25, 2026. An amendment filed later could change these rows.Filed fact
Methodology & corrections

The source stays beside the claim.

SEC Form 13F cover pages and information tables are the numerical authority. We reconcile every accepted table to its cover, retain each source row, and keep options separate. Reported values are whole US dollars. We do not add holdings across filers or estimate an ownership percentage.

A matching security identifier alone is not enough for a quarter comparison. Until amendments, corporate actions and manager relationships are cleared, the result is “not comparable.” A newly reported row need not be a new purchase, and a missing row need not prove a sale.

How to read Form 13F · SEC methodology and filing calendar · Report a correction

Data version 2026-q2.2026-09-25.4. Review cutoff 2026-09-25. Corrections require a primary source and a new reviewed data version.

Holdings are one piece of the picture

A filing answers what was reported. The next question is what matters.

Is it new or routine? Is it still fresh? What other public evidence supports it—and what happened after similar signals? Buteon is being built to connect those questions across filings, company events and market context.

Institutional filings are designed to become one evidence class in Buteon’s broader intelligence framework. This curated research surface shows what the filings establish today; it does not feed production company verdicts or provide automated institutional alerts.

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