Get emailed when ARDX changes direction
Insider selling: $14,766,991 sold by 20 insiders (30d)
Est. revisions:
+1.3%
Backed by structured data (insider trades, analyst ratings, or filings)
Factor Model (net -1.2)
Factor Model
net -1.2 3.0 / 10
Est. Revisions
+0.1
Insider Activity
+0.0
Momentum
+0.0
Analyst Rev.
-1.0
Narrative Gap
+0.0
Director buys big while insiders flee en masse
Watch: Track whether Mott holds or sells within the next 3-6 months. If he exits soon, the buy was likely a tax-loss harvesting move or forced portfolio rebalancing, not genuine conviction. Any CEO buying would also flip the insider tone from deeply negative to mixed.
Director David M. Mott purchased 333,333 shares for roughly $1.95 million on February 20, signaling confidence in the stock. But context matters: this lone insider buy sits against 33 sales by other insiders over the past six months — a 1:33 buy-to-sell ratio that screams institutional unease. CEO Michael Raab dumped 92,869 shares for $528k, and institutional heavyweight Macquarie Group exited its entire 10.5 million share position in Q4 2025. Millennium Management did buy 4.3 million shares, adding some offset to the selling pressure.
One director's conviction purchase doesn't override the broader exodus. The 33-to-1 sell ratio and Macquarie's complete exit suggest insiders and major holders see better opportunities elsewhere — or have doubts about ARDX's near-term trajectory. Mott's buy is a contrarian signal, not validation of strength.
Evidence
8d ago
Insider buy by MOTT DAVID M (ARDX): $1,946,331
8d ago
Insider buy by MOTT DAVID M (ARDX): $388,738
8d ago
Insider buy by MOTT DAVID M (ARDX): $992,672
8d ago
Insider buy by MOTT DAVID M (ARDX): $996,580
8d ago
Insider buy by MOTT DAVID M (ARDX): $996,598
8d ago
Insider buy by MOTT DAVID M (ARDX): $1,610,936
8d ago
Insider buy by MOTT DAVID M (ARDX): $329,120
8d ago
Insider buy by MOTT DAVID M (ARDX): $737,260
4 older signals
8d ago
Insider buy by MOTT DAVID M (ARDX): $725,880
Fundamentals & Data ▾
Ardelyx, Inc.
Healthcare · Biotechnology
Mkt Cap
$2B
Beta
0.66
52w Range
$3.21 - $8.40
Short Interest
24.5M 11.26%
Days to Cover
7.4 +12%
Technicals
downtrend
from 52w Hi
-7.6%
1w return
-5.8%
Insiders
selling
1B / 13S
EPS Estimate
$-0.12
+1.3% 30d
0up / 4dn
Est. Dispersion
40%
6 analysts
Analyst Target
$16
$13 - $19
Options P/C
0.26
Insider Cluster
strong sell
1B / 7S
Fund Convergence
strong
Renaissance, Citadel, Two Sigma, D.E. Shaw
Financials
Revenue
$125M +8% YoY
FCF
$21M
Gross Margin
91%
Op Margin
4%
Momentum:
accelerating
Top Holders
Renaissance
$10M
Citadel
$10M
Two Sigma
$8M
D.E. Shaw
Recent Filings & Data
insider trade
137
net selling
· $14,766,991 sold
· $8,724,115 bought
20 insiders · 137 transactions (30d)
Recent transactions
RAAB MICHAEL G · sell · $243,329
RAAB MICHAEL G · exercise · $20,625
RAAB MICHAEL G · sell · $260,621
BISHOP JOHN E · sell · $18,586
MOTT DAVID M · buy · $1,946,331
WILLIAMS LAURA A · sell · $47,803
KELLIHER MICHAEL · sell · $56,099
FOSTER ERIC DUANE · sell · $61,034
BRADY JAMES PARKER · sell · $14,868
HOHENLEITNER SUSAN · sell · $11,886
RAAB MICHAEL G · sell · $268,841
BISHOP JOHN E · award
WILLIAMS LAURA A · award
KELLIHER MICHAEL · award
FOSTER ERIC DUANE · award
BRADY JAMES PARKER · award
HOHENLEITNER SUSAN · award
RAAB MICHAEL G · award
WILLIAMS LAURA A · sell · $348,900
WILLIAMS LAURA A · exercise · $49,500
GRAMMER ELIZABETH A · sell · $33,194
WILLIAMS LAURA A · sell · $35,580
KELLIHER MICHAEL · sell · $30,785
FOSTER ERIC DUANE · sell · $32,192
RAAB MICHAEL G · sell · $259,609
WILLIAMS LAURA A · sell · $489,680
GRAMMER ELIZABETH A · sell · $34,647
RENZ JUSTIN ANDREW · sell · $41,741
WILLIAMS LAURA A · sell · $37,138
KELLIHER MICHAEL · sell · $32,132
FOSTER ERIC DUANE · sell · $90,802
RAAB MICHAEL G · sell · $271,002
BERTRAND WILLIAM C JR · award
RODGERS RICHARD J. · award
MOTT DAVID M · award
PARSEY MERDAD V · award
CADORET-MANIER ONAIZA · award
BHANJI MUNA · award
BAZEMORE ROBERT B · award
MOTT DAVID M · buy · $725,880
MOTT DAVID M · buy · $737,260
GRAMMER ELIZABETH A · sell · $24,456
RENZ JUSTIN ANDREW · sell · $29,460
WILLIAMS LAURA A · sell · $26,207
KELLIHER MICHAEL · sell · $59,270
FOSTER ERIC DUANE · sell · $10,232
RAAB MICHAEL G · sell · $191,079
MOTT DAVID M · buy · $329,120
MOTT DAVID M · buy · $1,610,936
RAAB MICHAEL G · sell · $177,168
PARSEY MERDAD V · award
RAAB MICHAEL G · sell · $191,151
RAAB MICHAEL G · sell · $223,199
RAAB MICHAEL G · exercise · $20,626
GRAMMER ELIZABETH A · award
RENZ JUSTIN ANDREW · award
WILLIAMS LAURA A · award
KELLIHER MICHAEL · award
FOSTER ERIC DUANE · award
RAAB MICHAEL G · award
MOTT DAVID M · buy · $388,738
GRAMMER ELIZABETH A · sell · $24,128
RENZ JUSTIN ANDREW · sell · $29,077
WILLIAMS LAURA A · sell · $27,783
RAAB MICHAEL G · sell · $129,124
RAAB MICHAEL G · sell · $223,355
MOTT DAVID M · buy · $992,672
RODGERS RICHARD J. · exercise · $55,000
RAAB MICHAEL G · sell · $221,309
MOTT DAVID M · exercise · $55,000
MOTT DAVID M · buy · $996,580
RAAB MICHAEL G · sell · $131,620
RAAB MICHAEL G · exercise · $24,750
RAAB MICHAEL G · sell · $134,482
GRAMMER ELIZABETH A · sell · $33,782
RENZ JUSTIN ANDREW · sell · $25,219
BLANKS ROBERT C. · sell · $23,690
WILLIAMS LAURA A · sell · $35,316
RAAB MICHAEL G · sell · $153,328
ROSENBAUM DAVID PAUL · sell · $34,444
MOTT DAVID M · buy · $996,598
RAAB MICHAEL G · sell · $13,441
ROSENBAUM DAVID PAUL · sell · $165,743
ROSENBAUM DAVID PAUL · exercise · $63,037
ROSENBAUM DAVID PAUL · sell · $161,673
ROSENBAUM DAVID PAUL · exercise · $63,039
RAAB MICHAEL G · sell · $147,740
RAAB MICHAEL G · sell · $45,075
ROSENBAUM DAVID PAUL · sell · $342,983
RAAB MICHAEL G · sell · $18,210
ROSENBAUM DAVID PAUL · sell · $33,254
RAAB MICHAEL G · sell · $196,399
RAAB MICHAEL G · exercise · $34,650
RAAB MICHAEL G · sell · $46,635
GRAMMER ELIZABETH A · sell · $41,544
RENZ JUSTIN ANDREW · sell · $30,995
BLANKS ROBERT C. · sell · $29,120
WILLIAMS LAURA A · sell · $43,437
FELSCH ROBERT ORA · sell · $20,904
RAAB MICHAEL G · sell · $188,848
ROSENBAUM DAVID PAUL · sell · $241,782
ROSENBAUM DAVID PAUL · exercise · $20,302
ROSENBAUM DAVID PAUL · sell · $42,306
RAAB MICHAEL G · sell · $7,018
FOSTER ERIC DUANE · award
RAAB MICHAEL G · sell · $169,314
RAAB MICHAEL G · exercise · $29,700
RAAB MICHAEL G · sell · $44,768
RAAB MICHAEL G · sell · $15,223
BLANKS ROBERT C. · sell · $226,290
BERTRAND WILLIAM C JR · award
RODGERS RICHARD J. · award
MOTT DAVID M · award
RAAB MICHAEL G · sell · $232,743
WILLIAMS LAURA A · sell · $1,033,080
WILLIAMS LAURA A · exercise · $275,000
ROSENBAUM DAVID PAUL · sell · $125,104
RAAB MICHAEL G · sell · $50,390
GRAMMER ELIZABETH A · sell · $54,107
RODRIGUEZ SUSAN · sell · $52,357
RENZ JUSTIN ANDREW · sell · $40,359
BLANKS ROBERT C. · sell · $37,922
WILLIAMS LAURA A · sell · $37,446
FELSCH ROBERT ORA · sell · $27,221
RAAB MICHAEL G · sell · $245,922
ROSENBAUM DAVID PAUL · sell · $55,091
RAAB MICHAEL G · sell · $23,970
GRAMMER ELIZABETH A · sell · $2,522,217
GRAMMER ELIZABETH A · exercise · $410,787
FELSCH ROBERT ORA · sell · $1,831,503
FELSCH ROBERT ORA · exercise · $176,445
GRAMMER ELIZABETH A · sell · $405,000
WILLIAMS LAURA A · sell · $333,574
WILLIAMS LAURA A · exercise · $29,700
RAAB MICHAEL G · sell · $192,057
RAAB MICHAEL G · sell · $52,924
RAAB MICHAEL G · sell · $261,954
12 signals · latest 8d ago
Get alerted when ARDX changes direction
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