DOSSIER · 13F Holders · Q1 2026
YPF

YPF SOCIEDAD ANONIMA

167 institutions still hold YPF SOCIEDAD ANONIMA as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 984245100·167 13F holders·last filed Mar 31, 2026
Market cap
13F value held
$2.1B
visible holders
Holders
167
filers reporting
Concentration
19.84%
Aquamarine Financial (Cayman) Ltd #1
top holder share
AI Holders Summary · Q1 2026

On its face, YPF's ownership quarter reads as a dramatic disagreement: Assenagon Asset Management nearly doubled its stake to $5.1 million while Y-Intercept slashed its position 89%, from $6.5 million to $731,000. But both actors are systematic — Assenagon a quasi-passive options-overlay manager whose blocks track hedging books, Y-Intercept a quantitative shop with model-driven turnover — and their opposing swings are machinery, not a debate about Argentine energy. In a tracked base of just six filers and $8.8 million, the genuinely discretionary event is smaller and quieter: CWA Asset Management opened a new $1.9 million position, instantly the largest fundamental stake in the name, while Steadtrust added $76,000 to hold above the $1 million line.

Assenagon Asset Management, classified quasi-passive, added $2.3 million to reach $5.1 million — 57% of the tracked base. The same filer appears across hundreds of unrelated names each quarter with block movements of this shape; it is an options-overlay manager, and its YPF stake is hedging inventory. Y-Intercept (Hong Kong), a quantitative manager, ran the opposite direction, cutting 89% of its position — $5.8 million out, leaving $731,000. Read together, the two moves say nothing about YPF and everything about how thin tracked bases amplify systematic flows: two machines happened to pass through the same small room in opposite directions.

The quarter's real information sits in the discretionary layer. CWA Asset Management Group initiated a $1.9 million position — new money, deliberately placed, and immediately the largest fundamentals-driven stake in the tracked base. Steadtrust, the other holder of size, added $76,000 to sit at $1.0 million. GAMMA Investing added $9,000; a second small advisor opened a $27,000 starter. No discretionary holder sold a share.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
Aquamarine Financial (Cayman) Ltd
CIK 0002104187
$417M9.0M30.55%Q1 2026
02
SUSQUEHANNA INTERNATIONAL GROUP, LLP
CIK 0001446194· Market maker
$258M5.6M0.03%Q1 2026
03
JPMORGAN CHASE & CO
CIK 0000019617
$236M5.1M0.02%Q1 2026
04
North of South Capital LLP
CIK 0002033334
$163M3.5M14.63%Q1 2026
05
Duquesne Family Office LLC
CIK 0001536411
$150M3.2M4.43%Q1 2026
06
VR Advisory Services Ltd
CIK 0001348145
$117M3.2M18.49%Q4 2025
07
JANE STREET GROUP, LLC
CIK 0001595888· Market maker
$109M2.4M0.01%Q1 2026
08
MORGAN STANLEY
CIK 0000895421
$88M1.9M0.01%Q1 2026
09
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.
CIK 0001705339
$80M1.7M0.11%Q1 2026
10
PING CAPITAL MANAGEMENT, INC.
CIK 0001804352
$73M1.6M18.27%Q2 2026
11
CITADEL ADVISORS LLC
CIK 0001423053
$64M1.8M0.01%Q4 2025
12
Russell Investments Group, Ltd.
CIK 0001692234
$49M1.1M0.05%Q1 2026
13
MASTERS CAPITAL MANAGEMENT LLC
CIK 0001104186
$46M1.0M1.53%Q1 2026
14
Grantham, Mayo, Van Otterloo & Co. LLC
CIK 0001352662
$43M926K0.11%Q1 2026
15
OAKTREE CAPITAL MANAGEMENT LP
CIK 0000949509
$41M886K0.62%Q1 2026
16
GOLDMAN SACHS GROUP INC
CIK 0000886982
$37M792K0.00%Q1 2026
17
Walleye Trading LLC
CIK 0001388391
$35M764K0.06%Q1 2026
18
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
$34M736K0.01%Q1 2026
19
BlackRock, Inc.
CIK 0002012383
$33M720K0.00%Q1 2026
20
PEAK6 LLC
CIK 0001389958
$29M628K0.07%Q1 2026
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Insiders at YPF SOCIEDAD ANONIMA
Marin Horacio DanielFarina Matias OsvaldoMaquieyra MartinMartin Mauricio AlejandroAldeco Marcelo Gustavo