DOSSIER · 13F Holders · Q2 2026Technology · Services-Computer Processing & Data Preparation
RDDT

REDDIT INC

876 institutions still hold REDDIT INC as of Q2 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 75734B100·Services-Computer Processing & Data Preparation·876 13F holders·last filed Jun 30, 2026
Market cap
13F value held
$14.0B
visible holders
Holders
876
filers reporting
Concentration
9.93%
BlackRock, Inc. #1
top holder share
AI Holders Summary · Q2 2026

One holder's move dwarfs everything else in Reddit Inc's (RDDT) Q2 2026 data — $200.7 million in institutional value across 85 holders. Portman Square Capital LLP more than doubled its position (+133.3% in shares, a genuine $72.0 million addition) to $126.0 million — now 62.8% of all institutional value tracked here, and by a wide margin the largest single flow in this entire batch. Nepsis Inc. added the second-largest real stake, up 30.8% ($2.9 million), and PensionDanmark doubled its position (+102.3%, $1.7 million). On the selling side, Y-Intercept (Hong Kong) Ltd cut its stake 60.2% — a genuine $8.8 million reduction, the largest true sale — and GC Wealth Management RIA trimmed 66.7% (-$3.7 million). Seven firms opened brand-new positions this quarter, including Shaker Investments ($2.4 million) and Mirador Capital Partners ($1.8 million), rounding out a quarter where one outsized buyer's conviction overshadows a genuinely mixed picture among everyone else.

One position dominates the entire book

Portman Square Capital LLP increased its share count from 311,200 to 725,972 — a 133.3% increase representing a genuine $72.0 million addition, the largest true buy anywhere in this batch of stocks. That single move pushed the firm's stake to $126.0 million, or 62.8% of all institutional value tracked in Reddit — meaning nearly two-thirds of the visible institutional ownership of this stock now sits with one firm that more than doubled its bet this quarter.

Analysis generated by 13F Insight from SEC Form 13F filing data · Q2 2026. Methodology

Top holders

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

#HolderValueShares% port.Quarter
01
BlackRock, Inc.
CIK 0002012383
$1.4B8.0M0.02%Q2 2026
02
CITADEL ADVISORS LLC
CIK 0001423053
$1.4B5.9M0.20%Q4 2025
03
BAILLIE GIFFORD & CO
CIK 0001088875
$1.2B7.2M1.13%Q2 2026
04
ALLIANCEBERNSTEIN L.P.
CIK 0001109448
$1.1B4.9M0.36%Q1 2026
05
SUSQUEHANNA INTERNATIONAL GROUP, LLP
CIK 0001446194· Market maker
$1.1B8.2M0.12%Q1 2026
06
Vanguard Portfolio Management
CIK 0002100121· Index
$907M6.7M0.05%Q1 2026
07
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$794M5.9M0.02%Q1 2026
08
D. E. Shaw & Co., Inc.
CIK 0001009207
$712M3.1M0.39%Q4 2025
09
Capital World Investors
CIK 0001422849
$595M4.4M0.08%Q1 2026
10
CITIGROUP INC
CIK 0000831001
$575M3.3M0.19%Q2 2026
11
JANE STREET GROUP, LLC
CIK 0001595888· Market maker
$566M4.2M0.07%Q1 2026
12
JPMORGAN CHASE & CO
CIK 0000019617
$546M4.4M0.04%Q1 2026
13
STATE STREET CORP
CIK 0000093751
$517M3.0M0.02%Q2 2026
14
GOLDMAN SACHS GROUP INC
CIK 0000886982
$460M3.4M0.05%Q1 2026
15
FMR LLC
CIK 0000315066
$393M2.9M0.02%Q1 2026
16
COATUE MANAGEMENT LLC
CIK 0001135730
$376M2.8M1.29%Q1 2026
17
VIKING GLOBAL INVESTORS LP
CIK 0001103804
$344M2.6M0.96%Q1 2026
18
TIGER GLOBAL MANAGEMENT LLC
CIK 0001167483
$337M2.5M1.47%Q1 2026
19
D1 Capital Partners L.P.
CIK 0001747057
$331M2.5M2.95%Q1 2026
20
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$331M2.5M0.02%Q1 2026
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Insiders at REDDIT INC
Huffman Steve LaddWong Jennifer L.Habiger David CNewhouse Steven OGale Mary PorterFilikrushel PatriciaFarrell Sarah ESeibel Michael