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Pdf Solutions Inc · 13F filings

PDFS Institutional Ownership

Holdings as of Jun 30, 2026From SEC Form 13FUpdated

Who owns Pdf Solutions Inc and what the big funds did with it last quarter, from every SEC 13F filing. 283 funds reported holding PDFS at Jun 30, 2026, together owning 92.2% of the company.

← PDFS stock page

Fund sentiment
Strongly bullish
Strongly bearishNeutralStrongly bullish
  • ▲188 buying vs 81 selling
  • ▲Held by funds +16.0 pts
  • ▲Funds holding +74
  • ▲Superinvestors: 4 added, 0 cut
  • ●Put/call not meaningful

What the filings show, not a forecast. Positions can be up to 45 days old and leave out short sales.

Funds holding283+74 vs Q1 2026
Held by funds92.2%+16.0 pts
Value held$2.8B38.9M shares
Put/call ratio–market makers left out

Funds holding and ownership

8 quarters
Q3 2024: 176 fundsQ3 '24Q4 2024: 179 fundsQ4 '24Q1 2025: 169 fundsQ1 '25Q2 2025: 173 fundsQ2 '25Q3 2025: 184 fundsQ3 '25Q4 2025: 189 fundsQ4 '25Q1 2026: 209 fundsQ1 '26Q2 2026: 283 fundsQ2 '2692.2% owned
Funds holdingHeld by funds %

Quarter over quarter

all 13F filers
Q2 2026This quarterQ1 2026Change
Funds holding283209+35.4%
In funds' top 10660.0%
13F shares38.9M32.2M+20.9%
Held by funds92.2%76.3%+16.0 pts
New positions9434+176.5%
Increased9470+34.3%
Reduced6160+1.7%
Sold out2016+25.0%
Calls (shares)00–
Puts (shares)00–
Put/call ratio–––

Buyers vs sellers

adding or new vs cutting or sold out
Q4 2024: 82 buyingQ4 2024: 85 sellingQ4 '24Q1 2025: 89 buyingQ1 2025: 86 sellingQ1 '25Q2 2025: 102 buyingQ2 2025: 66 sellingQ2 '25Q3 2025: 104 buyingQ3 2025: 82 sellingQ3 '25Q4 2025: 95 buyingQ4 2025: 84 sellingQ4 '25Q1 2026: 104 buyingQ1 2026: 76 sellingQ1 '26Q2 2026: 188 buyingQ2 2026: 81 sellingQ2 '26
Buying 188Selling 81latest quarter

Superinvestors in PDFS

All superinvestors →

Who owns PDFS

share of fund held shares
  • Index and passive funds35.1%
  • Active managers and hedge funds55.5%
  • Banks and brokers8.1%
  • Pensions, insurers and other1.3%

The top 10 holders own 46.0% of all PDFS shares that funds reported. Groups are our own grouping of filers by name.

Filed so far for Q3 2026

68 funds changed their position

🔒 Free account: see all 20.

Top holders

Q2 2026
#FundOf companySharesValueChange
1BlackRock, Inc.13.14%5.6M$393M+684K
2Needham Investment Management LLC4.89%2.1M$146M+42K
3Vanguard Capital Management LLC3.94%1.7M$118M+276K
4Vanguard Portfolio Management LLC3.45%1.5M$103M+57K
5State Street Corp3.28%1.4M$98.2M+194K
6Wasatch Advisors LP3.27%1.4M$97.7M+873K
7Barrow Hanley Mewhinney & Strauss LLC3.13%1.3M$93.4M+179K
8Ranger Investment Management, L.P.2.72%1.1M$81.4M−130K
9Snyder Capital Management L P2.45%1M$73.2M−26K
10Jupiter Topco LLC2.20%928K$65.7M–
🔒 15 more top holders. Create a free account or sign in to see them.
Biggest buyers
Biggest sellers

PDFS institutional ownership FAQ

Who owns the most PDFS stock?

In Q2 2026 13F filings the largest holder of PDFS was BlackRock, Inc., followed by Needham Investment Management LLC and Vanguard Capital Management LLC. Index fund managers are usually the biggest holders of large companies.

What percentage of PDFS is owned by institutions?

Funds that file 13F reports held 92.2% of PDFS's shares at Jun 30, 2026, compared with 76.3% a quarter earlier. That counts every manager with more than $100 million in US stocks.

Are hedge funds buying PDFS?

In Q2 2026, 188 funds bought PDFS (94 of them new positions) and 81 sold (20 sold out completely). Among well known investors, 4 added and 0 cut. Our fund sentiment for PDFS is strongly bullish.

What is PDFS's institutional put/call ratio?

Too few option positions were reported for a meaningful ratio.

How current is this PDFS ownership data?

13F filings show holdings at the end of each quarter and are due within 45 days, so positions can be up to six weeks old when they appear. We add each new filing within minutes, and the "filed so far" list shows funds that have already reported the next quarter.

For informational and educational purposes only. Not investment advice, and not a recommendation to buy or sell any security. Fund sentiment summarises what 13F filings show and is not a forecast. Holdings come from SEC Form 13F filings as reported and show positions at the end of the quarter, up to 45 days before the filing. A 13F leaves out short positions, cash, bonds and most foreign holdings. See all hedge fund holdings.