PDFS PDF Solutions (PDFS) Insider Trading, Ownership & Congress Trades
Software & IT · Services-prepackaged software · CIK 0001120914
Form 144 · 2
Insider buyers, 180 days
0
House members buying, 1 year
0
STOCK Act, US House only, disclosed up to 45 days after the trade
Funds added, last quarter
189
13F, latest reported quarter
What the filings say about PDFS
Insiders, 180 days
-$228.0K net sold
2 sellers · 0% of sales under a 10b5-1 plan
Planned sales (Form 144), 90 days
$228.0K
2 notices
PDF Solutions insider trades (Form 4)
Form 4 buys and sells (codes P and S). Grants, option exercises
and conversions excluded.
Over the last 180 days, PDF SOLUTIONS INC insiders sold a net $228.0K of stock across 39 Form 4 purchases and sales, with no insider buying. Source: SEC Form 4 filings, as of 2026-10-27.
Insider
Filed
Shares
Value
Since filing
Context
- 5 earlier Form 4 trades (code P or S) here by this insider (5 sales), the last on Dec 17, 2024.
- The trade is 3.7% of the 90,965 shares held after it.
- 1 other insider sold within 30 days.
- 189 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Chief Technology Officer Strojwas Andrzej sold about $150.7K of PDFS on Aug 31, 2026, the largest insider sale at the company since 2024; 1 other insider sold within 30 days and 189 funds added in the latest 13F quarter.Context
- 4 earlier Form 4 trades (code P or S) here by this insider (4 sales), the last on Jun 3, 2024.
- The trade is 6.4% of the 23,380 shares held after it.
- 1 other insider sold within 30 days.
- 189 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Director Zhang Shuo sold about $77.3K of PDFS on Aug 12, 2026, the largest insider sale at the company since 2024; 1 other insider sold within 30 days and 189 funds added in the latest 13F quarter.Context
- 7 earlier Form 4 trades (code P or S) here by this insider (1 buy, 6 sales), the last on Feb 24, 2025.
- The trade is 24.9% of the 30,074 shares held after it.
- No other insider bought within 30 days.
- 189 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Director GUSTAFSON MICHAEL B bought about $145.9K of PDFS on May 13, 2025; 189 funds added in the latest 13F quarter.Context
- 1 earlier Form 4 trade (code P or S) here by this insider (1 buy), the last on Feb 24, 2025.
- The trade is 0.6% of the 2,522,756 shares held after it.
- 1 other insider bought within 30 days.
- 189 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: PRESIDENT AND CEO KIBARIAN JOHN KACHIG bought about $345.9K of PDFS on Feb 25, 2025; 1 other insider bought within 30 days and 189 funds added in the latest 13F quarter.Context
- 6 earlier Form 4 trades (code P or S) here by this insider (6 sales), the last on Dec 13, 2023.
- The trade is 17.7% of the 22,574 shares held after it.
- 1 other insider bought within 30 days.
- 189 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Director GUSTAFSON MICHAEL B bought about $92.2K of PDFS on Feb 24, 2025, the largest insider purchase at the company on our record; 1 other insider bought within 30 days and 189 funds added in the latest 13F quarter.39 transactions on record
Since filing: total return from the first close after the filing to the latest close, dividend-adjusted. Not a forecast.
Context lines are counts over the filings above and returns from our own price history, never a price level. Not investment advice.
Seven facts, ranked against the sector ·
Rank is not a forecast
Insiders
net -$228.0K over 180 days
-$228.0K over 90 days
more than 67% of Software & IT
Congress
no House purchase disclosed in the last 12 months
Funds
189 funds bought in last quarter
more than 73% of Software & IT
Revenue
+22.0% year over year
more than 72% of Software & IT
Margin
-0.3% net margin
more than 54% of Software & IT
Buybacks
$244.0K repurchased, FY to 2025-12-31
below 97% of Software & IT
Short interest
10.3% of the float short (float per yahoo 2026-10-26) · 5.8 days to cover · settled 2026-09-30
more than 81% of Software & IT
What changed in the last 30 days
Nothing new filed in the last 30 days
Watch PDFS
A free account keeps a watchlist and can send one email a day when insiders, funds or Congress file on the names in it. No password and no card.
The year, with the filings on it
Total return over 12 months. Each marker is a filing; hover or tap one for the detail.
+43.7%12M
Insider sellForm 144 (planned sale)
Indexed to 100, dividend-adjusted, not a price chart.
When a name files heavily, the largest trades are drawn first.
Who owns PDFS: institutional holders (13F)
13F holdings, latest reported quarter
5,550,335 sh
$392.9M
2,065,000 sh
$146.2M
1,664,256 sh
$117.8M
1,457,748 sh
$103.2M
1,386,498 sh
$98.2M
Congress trades in PDFS
No Congress trades reported
No House member has disclosed a trade in this stock. See what Congress is buying.
Activist and 5% holders (13D/13G)
No 5%+ ownership filings
Nobody has filed for crossing 5%. That is a fact, not missing data.
PDFS planned insider sales (Form 144)
Notice of intent to sell, filed before any sale
ANDRZEJ STROJWAS
Filed 2026-08-31
$150.7K
SHUO ZHANG
Filed 2026-08-12
$77.3K
PDFS mutual fund holders (N-PORT)
Funds ranked by the share of their own portfolio in this stock (N-PORT).
Needham Growth Fund
$15.6M position · as of 2026-06-30
5.3%
Needham Aggressive Growth Fund
$120.7M position · as of 2026-06-30
4.6%
Ranger Micro Cap Fund
$471.5K position · as of 2026-07-31
4.0%
Wasatch Ultra Growth Fund
$13.7M position · as of 2026-06-30
3.0%
Ranger Small Cap Fund
$329.1K position · as of 2026-07-31
2.7%
Transamerica Small Cap Growth
$2.2M position · as of 2026-07-31
2.7%
SEC N-PORT, monthly, about 60 days late · funds ≥ $10M ·
% is the share of the fund's own portfolio
Executive pay vs shareholder return · John K. Kibarian
CEO pay, headline and as actually paid, against the company's
return and its chosen peers' (DEF 14A).
FY
CEO total
Actually paid
Other execs, avg
TSR
Peer TSR
2025
$694.0K
$694.0K
$920.7K
+32%
+41%
2024
$589.7K
$589.7K
$1.0M
+25%
+18%
2023
$595.9K
$595.9K
$996.0K
+49%
+19%
2022
$654.6K
$654.6K
$1.1M
+32%
-2%
2021
$409.1K
$409.1K
$668.2K
+47%
+27%
Tagged by the company under SEC Item 402(v). Returns are
cumulative from the start of the disclosure period. Green where the company beat its own peer group.
Live price
Daily candles from TradingView, under their licence. No filings marked.
Why this name is on the desk
Insiders have filed to sell, before selling.
The record shows a net $228.0K sold by insiders over 180 days, 189 funds added last quarter, $228.0K in planned Form 144 sales. Each figure is a federal filing, dated the day it went public.
PDFS financials
Revenue growth
+22.0%
XBRL, annual
Net margin
-0.3%
Ratios from the company's XBRL filings, latest filings
Revenue, TTM
$241.2M
four quarters, 2025-07-01 to 2026-06-30
Revenue, TTM PDFS
| FY Dec 2025 | $219.0M |
| FY Dec 2024 | $179.5M |
| FY Dec 2023 | $165.8M |
| FY Dec 2022 | $148.5M |
| FY Dec 2021 | $111.1M |
| Jun 2026 | $61.5M |
| Mar 2026 | $60.1M |
| Dec 2025 | $62.4M |
| Sep 2025 | $57.1M |
| Jun 2025 | $51.7M |
| Mar 2025 | $47.8M |
| Dec 2024 | $50.1M |
| Sep 2024 | $46.4M |
At each fiscal year end
Single quarter
Net margin, TTM
+4.3%
net income over revenue, 2025-07-01 to 2026-06-30
Net margin, TTM PDFS
| FY Dec 2025 | -0.3% |
| FY Dec 2024 | +2.3% |
| FY Dec 2023 | +1.9% |
| FY Dec 2022 | n/a |
| FY Dec 2021 | -19.3% |
| Jun 2026 | +6.9% |
| Mar 2026 | +8.0% |
| Dec 2025 | -0.0% |
| Sep 2025 | +2.3% |
| Jun 2025 | +2.2% |
| Mar 2025 | -6.3% |
| Dec 2024 | +1.2% |
| Sep 2024 | +4.8% |
At each fiscal year end
Single quarter
Free cash flow, TTM
-$1.8M
operating cash flow minus capex, 2025-07-01 to 2026-06-30
Free cash flow, TTM PDFS
| FY Dec 2025 | -$8.6M |
| FY Dec 2024 | -$7.5M |
| FY Dec 2023 | $3.4M |
| FY Dec 2022 | $23.9M |
| FY Dec 2021 | $571.0K |
| Jun 2026 | $2.3M |
| Mar 2026 | -$8.8M |
| Dec 2025 | $7.5M |
| Sep 2025 | -$2.9M |
| Jun 2025 | -$13.8M |
| Mar 2025 | $535.0K |
| Dec 2024 | -$4.0M |
| Sep 2024 | $5.1M |
At each fiscal year end
Single quarter
Debt to equity
0.18x
long-term 2026-06-30 plus current 2026-06-30; equity 2026-06-30
Debt to equity PDFS
| FY Dec 2025 | 0.25x |
| FY Dec 2024 | 0.00x |
| FY Dec 2023 | n/a |
| FY Dec 2022 | n/a |
| FY Dec 2021 | n/a |
| Jun 2026 | 0.18x |
| Mar 2026 | 0.24x |
| Dec 2025 | 0.25x |
| Sep 2025 | 0.26x |
| Jun 2025 | 0.26x |
| Mar 2025 | 0.28x |
| Dec 2024 | 0.00x |
| Sep 2024 | n/a |
At each fiscal year end
Trailing four quarters at each quarter end
Cash flow to debt
0.58x
TTM operating cash flow over long-term 2026-06-30 plus current 2026-06-30
Cash flow to debt PDFS
| FY Dec 2025 | 0.36x |
| FY Dec 2024 | n/a |
| FY Dec 2023 | n/a |
| FY Dec 2022 | n/a |
| FY Dec 2021 | n/a |
| Jun 2026 | 0.58x |
| Mar 2026 | 0.26x |
| Dec 2025 | 0.36x |
| Sep 2025 | 0.12x |
| Jun 2025 | 0.21x |
| Mar 2025 | 0.29x |
| Dec 2024 | n/a |
| Sep 2024 | n/a |
At each fiscal year end
Trailing four quarters at each quarter end
Return on equity
+3.3%
TTM net income over average of 2025-06-30 and 2026-06-30
Return on equity PDFS
| FY Dec 2025 | -0.2% |
| FY Dec 2024 | +1.7% |
| FY Dec 2023 | +1.4% |
| FY Dec 2022 | n/a |
| FY Dec 2021 | -9.5% |
| Jun 2026 | +3.3% |
| Mar 2026 | +2.7% |
| Dec 2025 | -0.2% |
| Sep 2025 | -0.0% |
| Jun 2025 | +0.4% |
| Mar 2025 | +0.6% |
| Dec 2024 | +1.7% |
| Sep 2024 | +1.9% |
At each fiscal year end
Trailing four quarters at each quarter end
Return on assets
+2.3%
TTM net income over average of 2025-06-30 and 2026-06-30
Return on assets PDFS
| FY Dec 2025 | -0.2% |
| FY Dec 2024 | +1.4% |
| FY Dec 2023 | +1.1% |
| FY Dec 2022 | n/a |
| FY Dec 2021 | -7.7% |
| Jun 2026 | +2.3% |
| Mar 2026 | +1.8% |
| Dec 2025 | -0.2% |
| Sep 2025 | -0.0% |
| Jun 2025 | +0.3% |
| Mar 2025 | +0.4% |
| Dec 2024 | +1.4% |
| Sep 2024 | +1.5% |
At each fiscal year end
Trailing four quarters at each quarter end
Return on invested capital
+4.0%
operating income after a 37.8% effective tax rate, over long-term 2026-06-30 plus current 2026-06-30 plus average of 2025-06-30 and 2026-06-30 minus cash
Return on invested capital PDFS
| FY Dec 2025 | n/a |
| FY Dec 2024 | +0.4% |
| FY Dec 2023 | n/a |
| FY Dec 2022 | n/a |
| FY Dec 2021 | n/a |
| Jun 2026 | +4.0% |
| Mar 2026 | +3.2% |
| Dec 2025 | n/a |
| Sep 2025 | n/a |
| Jun 2025 | n/a |
| Mar 2025 | n/a |
| Dec 2024 | +0.4% |
| Sep 2024 | n/a |
At each fiscal year end
Trailing four quarters at each quarter end
Return on capital employed
+5.0%
operating income (EBIT proxy) over average of 2025-06-30 and 2026-06-30 minus current liabilities
Return on capital employed PDFS
| FY Dec 2025 | +1.9% |
| FY Dec 2024 | +0.4% |
| FY Dec 2023 | -4.2% |
| FY Dec 2022 | -4.2% |
| FY Dec 2021 | -4.0% |
| Jun 2026 | +5.0% |
| Mar 2026 | +4.6% |
| Dec 2025 | +1.9% |
| Sep 2025 | +1.0% |
| Jun 2025 | +0.1% |
| Mar 2025 | -0.2% |
| Dec 2024 | +0.4% |
| Sep 2024 | n/a |
At each fiscal year end
Trailing four quarters at each quarter end
P/E, trailing
157.28x
close 2026-10-23 over four quarters of diluted EPS, 2025-07-01 to 2026-06-30
P/E, trailing PDFS
| FY Dec 2025 | n/a |
| FY Dec 2024 | 270.80x |
| FY Dec 2023 | 459.14x |
| FY Dec 2022 | n/a |
| FY Dec 2021 | n/a |
| Jun 2026 | 283.16x |
| Mar 2026 | 181.72x |
| Dec 2025 | n/a |
| Sep 2025 | n/a |
| Jun 2025 | 1,069.00x |
| Mar 2025 | 637.00x |
| Dec 2024 | 270.80x |
| Sep 2024 | 288.00x |
At each fiscal year end
Trailing four quarters at each quarter end
Enterprise value
$1.6B
market value at close 2026-10-23 on 2026-08-03 shares, plus long-term 2026-06-30 plus current 2026-06-30, minus cash 2026-06-30
Enterprise value PDFS
| FY Dec 2025 | $1.2B |
| FY Dec 2024 | $959.4M |
| FY Dec 2023 | n/a |
| FY Dec 2022 | n/a |
| FY Dec 2021 | n/a |
| Jun 2026 | $2.8B |
| Mar 2026 | $1.3B |
| Dec 2025 | $1.2B |
| Sep 2025 | $1.1B |
| Jun 2025 | $867.5M |
| Mar 2025 | $772.4M |
| Dec 2024 | $959.4M |
| Sep 2024 | n/a |
At each fiscal year end
Trailing four quarters at each quarter end
FCF yield
-0.1%
TTM free cash flow over market value at close 2026-10-23
FCF yield PDFS
| FY Dec 2025 | -0.8% |
| FY Dec 2024 | -0.7% |
| FY Dec 2023 | +0.3% |
| FY Dec 2022 | +2.2% |
| FY Dec 2021 | +0.0% |
| Jun 2026 | -0.1% |
| Mar 2026 | -1.4% |
| Dec 2025 | -0.8% |
| Sep 2025 | -2.0% |
| Jun 2025 | -1.5% |
| Mar 2025 | -0.4% |
| Dec 2024 | -0.7% |
| Sep 2024 | -0.3% |
At each fiscal year end
Trailing four quarters at each quarter end
PEG, trailing
0.14x
P/E over trailing EPS growth of 1150%: four quarters to 2026-06-30 against the four to 2025-06-30
PEG, trailing PDFS
| FY Dec 2025 | n/a |
| FY Dec 2024 | 6.32x |
| FY Dec 2023 | n/a |
| FY Dec 2022 | n/a |
| FY Dec 2021 | n/a |
| Jun 2026 | 0.25x |
| Mar 2026 | 0.36x |
| Dec 2025 | n/a |
| Sep 2025 | n/a |
| Jun 2025 | n/a |
| Mar 2025 | n/a |
| Dec 2024 | 6.32x |
| Sep 2024 | 3.46x |
At each fiscal year end
Trailing four quarters at each quarter end
Price as of 2026-10-23. Hover or tap a tile for its yearly and quarterly history.
Method
TTM is four consecutive fiscal quarters; Q4 is the year minus nine months when not filed. Returns use the average of opening and closing balances. EBIT is approximated by operating income. PEG uses trailing EPS growth.
Fundamentals
Annual figures from XBRL filings. Pick a past date to see them as known then.
| 2025-12 | 2024-12 | 2023-12 | 2022-12 | |
|---|---|---|---|---|
| Revenue | $219.0M | $179.5M | $165.8M | $148.5M |
| Gross profit | $158.4M | $125.3M | $114.1M | $100.6M |
| Operating income | $5.8M | $935.0K | -$151.0K | n/a |
| Net income | -$600.0K | $4.1M | $3.1M | -$3.4M |
| EPS (diluted) | -0.02 | 0.10 | 0.08 | -0.09 |
| Operating cash flow | $24.1M | $9.7M | $14.6M | $32.3M |
| Cash | $42.2M | $90.6M | $99.0M | $119.6M |
| Long-term debt | $64.8M | $0 | n/a | n/a |
| Buybacks | $244.0K | $6.9M | $743.0K | $22.5M |
SEC XBRL, fiscal years, as known on 2026-10-27
PDFS Stock Sonar score 6/7 axes
Find similar shapesComparePDFS ranks highest on institutional and government (73rd percentile) and growth (67th), and lowest on insider conviction (32nd), among Software & IT peers.
6 of 7 axes scored. Each is a percentile against sector peers (all companies when the sector is thin); higher is better. An unscored axis is unmeasured, not low. How it is scored
PDFS filings, in plain words
Are PDF Solutions insiders buying or selling PDFS?
In the 180 days to 2026-10-27, PDF Solutions insiders were net sellers, a net $228.0K across purchases and sales reported on Form 4, by 2 sellers.
Are there planned insider sales of PDFS?
Yes. 2 Form 144 notices of planned insider sales were filed in the 90 days to 2026-10-27, covering $228.0K of stock; the latest, by ANDRZEJ STROJWAS, was filed 2026-08-31.
Read the full summary
In the 180 days to 2026-10-27, PDF Solutions insiders were net sellers of PDFS, a net $228.0K across purchases and sales reported on Form 4 by 2 sellers. Insiders filed 2 Form 144 notices of intent to sell in the 90 days to 2026-10-27, covering $228.0K of stock. Each figure is counted from SEC and House filings as of 2026-10-27, dated the day the filing was made public.
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