On January 15, 2026, this newsletter featured 5 insider purchases detected from SEC Form 4 filings.
📈 Daily Insider & Cluster Buy Highlights – January 15, 2026
Here are some of the most interesting insider and cluster buying signals from the last 7 days.
⚠️ For information purposes only.
This information is provided for informational purposes only and does not constitute investment advice, financial advice, trading advice, or any other type of advice. All investments carry risk, including the potential loss of principal. Past performance is not indicative of future results. You should consult with a qualified financial advisor, accountant, or other professional before making any investment decisions. The information contained in this newsletter is not intended to be a substitute for professional financial advice.
📊 About Fair Value:
The Fair Value shown for each company is calculated using a Levered Discounted Cash Flow (DCF) model. This method estimates the intrinsic value of a stock by projecting future cash flows and discounting them back to present value, accounting for the company's debt structure. A positive percentage difference indicates the stock may be undervalued relative to this model, while a negative percentage suggests it may be overvalued. Fair value calculations are estimates and should be considered alongside other factors.
🔥 Notable Cluster Buys (≥ $500,000)
No new qualifying cluster buys in the last 7 days.
💼 Notable Individual Insider Buys (≥ $100,000)
N/A
Aktis Oncology, Inc ($AKTS)
Transaction Date: Jan 12, 2026
Shares: 1,112,777
Purchase Price: $18.00
Purchase Value: $20,029,986
📈
P&L: 15.6% ($3,126,903 gain)
📊 Valuation & Analyst Info:
Avg Price Target: $4.92 (-76.4% vs current)
📰 Recent News (Last 7 Days):
GuruFocus • Jan 14, 2026
Guru Stock PicksAndreas Halvorsen has made the following transactions:Add in RRX by 5.71%Stock News Verizon service outage hits users: Verizon (VZ) reported a w
MarketBeat • Jan 14, 2026
For speculative investors, the start of each year is always a good time to revisit an initial public offering (IPO) calendar. Almost every week, companies go public, with a handful of them offering co...
GuruFocus • Jan 14, 2026
Stock News Saks Global files Chapter 11: Saks Global (private) sought Chapter 11 protection, citing heavy debt from its 2024 Neiman Marcus deal and inventory st
GuruFocus • Jan 13, 2026
Guru Stock PicksLarry Robbins has made the following transactions:Add in MYGN by 7.71%Stock News Trump floats 10% cap on card APRs: President Trump proposed a o
GuruFocus • Jan 13, 2026
Stock News DOJ subpoenas Fed chair spark backlash: Federal prosecutors served grand jury subpoenas to Jerome Powell over testimony on Fed HQ renovations, prompt
GlobeNewsWire • Jan 13, 2026
BOSTON, Jan. 13, 2026 (GLOBE NEWSWIRE) -- Aktis Oncology, Inc. (“Aktis”), a clinical-stage oncology company focused on expanding the breakthrough potential of targeted radiopharmaceuticals to large pa...
GuruFocus • Jan 12, 2026
Guru Stock PicksJerome Dodson has made the following transactions:Reduce in ORLY by 3%Sold out in BLDRAdd in NTRA by 2.49%New position in INSMTweedy Browne Inte
Seeking Alpha • Jan 09, 2026
U.S. IPO Weekly Recap: Aktis Oncology Leads As First Sizable 2026 IPO
GuruFocus • Jan 09, 2026
Stock News California billionaire tax splits tech leaders: Nvidia (NVDA) CEO Jensen Huang said he's âfineâ with a proposed one-time 5% California wealth tax
GuruFocus • Jan 09, 2026
Aktis Oncology Inc. (AKTS) drew strong investor demand in its Nasdaq debut, with shares trading at $22.91 as of 12:19 p.m. Friday in New York after pricing its
Business Wire • Jan 09, 2026
LOS ANGELES & BOSTON--(BUSINESS WIRE)--Vida Ventures (“Vida”), a next-generation life sciences venture firm, today congratulates Aktis Oncology (Nasdaq: AKTS), a clinical-stage biotechnology company a...
Reuters • Jan 08, 2026
Cancer drug developer Aktis Oncology said on Thursday it priced its upsized U.S. initial public offering at $18 per share, raising about $318 million.
GlobeNewsWire • Jan 08, 2026
BOSTON, Jan. 08, 2026 (GLOBE NEWSWIRE) -- Aktis Oncology, Inc. (“Aktis”), a clinical-stage oncology company focused on expanding the breakthrough potential of targeted radiopharmaceuticals to large pa...
N/A
Aktis Oncology, Inc ($AKTS)
Transaction Date: Jan 12, 2026
Shares: 1,112,777
Purchase Price: $18.00
Purchase Value: $20,029,986
📈
P&L: 15.6% ($3,126,903 gain)
📊 Valuation & Analyst Info:
Avg Price Target: $4.92 (-76.4% vs current)
📰 Recent News (Last 7 Days):
GuruFocus • Jan 14, 2026
Guru Stock PicksAndreas Halvorsen has made the following transactions:Add in RRX by 5.71%Stock News Verizon service outage hits users: Verizon (VZ) reported a w
MarketBeat • Jan 14, 2026
For speculative investors, the start of each year is always a good time to revisit an initial public offering (IPO) calendar. Almost every week, companies go public, with a handful of them offering co...
GuruFocus • Jan 14, 2026
Stock News Saks Global files Chapter 11: Saks Global (private) sought Chapter 11 protection, citing heavy debt from its 2024 Neiman Marcus deal and inventory st
GuruFocus • Jan 13, 2026
Guru Stock PicksLarry Robbins has made the following transactions:Add in MYGN by 7.71%Stock News Trump floats 10% cap on card APRs: President Trump proposed a o
GuruFocus • Jan 13, 2026
Stock News DOJ subpoenas Fed chair spark backlash: Federal prosecutors served grand jury subpoenas to Jerome Powell over testimony on Fed HQ renovations, prompt
GlobeNewsWire • Jan 13, 2026
BOSTON, Jan. 13, 2026 (GLOBE NEWSWIRE) -- Aktis Oncology, Inc. (“Aktis”), a clinical-stage oncology company focused on expanding the breakthrough potential of targeted radiopharmaceuticals to large pa...
GuruFocus • Jan 12, 2026
Guru Stock PicksJerome Dodson has made the following transactions:Reduce in ORLY by 3%Sold out in BLDRAdd in NTRA by 2.49%New position in INSMTweedy Browne Inte
Seeking Alpha • Jan 09, 2026
U.S. IPO Weekly Recap: Aktis Oncology Leads As First Sizable 2026 IPO
GuruFocus • Jan 09, 2026
Stock News California billionaire tax splits tech leaders: Nvidia (NVDA) CEO Jensen Huang said he's âfineâ with a proposed one-time 5% California wealth tax
GuruFocus • Jan 09, 2026
Aktis Oncology Inc. (AKTS) drew strong investor demand in its Nasdaq debut, with shares trading at $22.91 as of 12:19 p.m. Friday in New York after pricing its
Business Wire • Jan 09, 2026
LOS ANGELES & BOSTON--(BUSINESS WIRE)--Vida Ventures (“Vida”), a next-generation life sciences venture firm, today congratulates Aktis Oncology (Nasdaq: AKTS), a clinical-stage biotechnology company a...
Reuters • Jan 08, 2026
Cancer drug developer Aktis Oncology said on Thursday it priced its upsized U.S. initial public offering at $18 per share, raising about $318 million.
GlobeNewsWire • Jan 08, 2026
BOSTON, Jan. 08, 2026 (GLOBE NEWSWIRE) -- Aktis Oncology, Inc. (“Aktis”), a clinical-stage oncology company focused on expanding the breakthrough potential of targeted radiopharmaceuticals to large pa...
N/A
BERKLEY W R CORP ($WRB)
Transaction Date: Jan 12, 2026
Shares: 256,041
Purchase Price: $68.73
Purchase Value: $17,598,825
📈
P&L: 0.6% ($114,092 gain)
📊 Valuation & Analyst Info:
Fair Value: $391.59 (466.0% undervalued vs current price)
Analyst Rating: A-
Avg Price Target: $72.00 (+4.1% vs current)
📰 Recent News (Last 7 Days):
Defense World • Jan 14, 2026
Commonwealth Equity Services LLC trimmed its holdings in W.R. Berkley Corporation (NYSE: WRB) by 31.8% during the third quarter, according to its most recent disclosure with the Securities and Exchang...
24/7 Wall Street • Jan 13, 2026
A beneficial owner continues to build a stake in W.R.
GuruFocus • Jan 13, 2026
Stock News DOJ subpoenas Fed chair spark backlash: Federal prosecutors served grand jury subpoenas to Jerome Powell over testimony on Fed HQ renovations, prompt
GuruFocus • Jan 12, 2026
Guru Stock PicksJerome Dodson has made the following transactions:Reduce in ORLY by 3%Sold out in BLDRAdd in NTRA by 2.49%New position in INSMTweedy Browne Inte
GuruFocus • Jan 12, 2026
Stock News Risk-off after DOJ probe of Fed chair: Bank shares including JPMorgan (JPM), Bank of America (BAC), Citigroup (C) and Capital One (COF) fell as futur
Defense World • Jan 11, 2026
Robeco Institutional Asset Management B.V. cut its stake in shares of W.R. Berkley Corporation (NYSE: WRB) by 21.4% in the undefined quarter, according to the company in its most recent 13F filing wit...
GuruFocus • Jan 09, 2026
Stock News California billionaire tax splits tech leaders: Nvidia (NVDA) CEO Jensen Huang said he's âfineâ with a proposed one-time 5% California wealth tax
GuruFocus • Jan 09, 2026
Stock News xAI under fire over Grok image edits: Elon Musk's xAI (private) restricted Grok's image generation/editing on X to paying users after the tool was us
GuruFocus • Jan 08, 2026
Stock News Silicon Valley split on CA wealth tax: Alphabet's cofounders moved assets out of California while Nvidia's Jensen Huang said he's âperfectly fineâ
Business Wire • Jan 08, 2026
GREENWICH, Conn.--(BUSINESS WIRE)--W. R. Berkley Corporation (NYSE: WRB) announced today that its Board of Directors has increased the Company's share repurchase authorization to 25 million shares of ...
GuruFocus • Jan 08, 2026
Stock News Trump targets Wall Street homebuying: President Trump proposed banning large institutional investors from purchasing single-family homes, sending sha
📅 Upcoming Earnings: Jan 26, 2026
EPS Estimate: $1.12
Revenue Estimate: $3,185,148,500M
N/A
BERKLEY W R CORP ($WRB)
Transaction Date: Jan 14, 2026
Shares: 208,272
Purchase Price: $69.23
Purchase Value: $14,419,358
📉
P&L: 0.1% ($11,101 loss)
📊 Valuation & Analyst Info:
Fair Value: $391.59 (466.0% undervalued vs current price)
Analyst Rating: A-
Avg Price Target: $72.00 (+4.1% vs current)
📰 Recent News (Last 7 Days):
Defense World • Jan 14, 2026
Commonwealth Equity Services LLC trimmed its holdings in W.R. Berkley Corporation (NYSE: WRB) by 31.8% during the third quarter, according to its most recent disclosure with the Securities and Exchang...
24/7 Wall Street • Jan 13, 2026
A beneficial owner continues to build a stake in W.R.
GuruFocus • Jan 13, 2026
Stock News DOJ subpoenas Fed chair spark backlash: Federal prosecutors served grand jury subpoenas to Jerome Powell over testimony on Fed HQ renovations, prompt
GuruFocus • Jan 12, 2026
Guru Stock PicksJerome Dodson has made the following transactions:Reduce in ORLY by 3%Sold out in BLDRAdd in NTRA by 2.49%New position in INSMTweedy Browne Inte
GuruFocus • Jan 12, 2026
Stock News Risk-off after DOJ probe of Fed chair: Bank shares including JPMorgan (JPM), Bank of America (BAC), Citigroup (C) and Capital One (COF) fell as futur
Defense World • Jan 11, 2026
Robeco Institutional Asset Management B.V. cut its stake in shares of W.R. Berkley Corporation (NYSE: WRB) by 21.4% in the undefined quarter, according to the company in its most recent 13F filing wit...
GuruFocus • Jan 09, 2026
Stock News California billionaire tax splits tech leaders: Nvidia (NVDA) CEO Jensen Huang said he's âfineâ with a proposed one-time 5% California wealth tax
GuruFocus • Jan 09, 2026
Stock News xAI under fire over Grok image edits: Elon Musk's xAI (private) restricted Grok's image generation/editing on X to paying users after the tool was us
GuruFocus • Jan 08, 2026
Stock News Silicon Valley split on CA wealth tax: Alphabet's cofounders moved assets out of California while Nvidia's Jensen Huang said he's âperfectly fineâ
Business Wire • Jan 08, 2026
GREENWICH, Conn.--(BUSINESS WIRE)--W. R. Berkley Corporation (NYSE: WRB) announced today that its Board of Directors has increased the Company's share repurchase authorization to 25 million shares of ...
GuruFocus • Jan 08, 2026
Stock News Trump targets Wall Street homebuying: President Trump proposed banning large institutional investors from purchasing single-family homes, sending sha
📅 Upcoming Earnings: Jan 26, 2026
EPS Estimate: $1.12
Revenue Estimate: $3,185,148,500M
N/A
BERKLEY W R CORP ($WRB)
Transaction Date: Jan 13, 2026
Shares: 206,499
Purchase Price: $68.15
Purchase Value: $14,072,473
📈
P&L: 1.5% ($213,128 gain)
📊 Valuation & Analyst Info:
Fair Value: $391.59 (466.0% undervalued vs current price)
Analyst Rating: A-
Avg Price Target: $72.00 (+4.1% vs current)
📰 Recent News (Last 7 Days):
Defense World • Jan 14, 2026
Commonwealth Equity Services LLC trimmed its holdings in W.R. Berkley Corporation (NYSE: WRB) by 31.8% during the third quarter, according to its most recent disclosure with the Securities and Exchang...
24/7 Wall Street • Jan 13, 2026
A beneficial owner continues to build a stake in W.R.
GuruFocus • Jan 13, 2026
Stock News DOJ subpoenas Fed chair spark backlash: Federal prosecutors served grand jury subpoenas to Jerome Powell over testimony on Fed HQ renovations, prompt
GuruFocus • Jan 12, 2026
Guru Stock PicksJerome Dodson has made the following transactions:Reduce in ORLY by 3%Sold out in BLDRAdd in NTRA by 2.49%New position in INSMTweedy Browne Inte
GuruFocus • Jan 12, 2026
Stock News Risk-off after DOJ probe of Fed chair: Bank shares including JPMorgan (JPM), Bank of America (BAC), Citigroup (C) and Capital One (COF) fell as futur
Defense World • Jan 11, 2026
Robeco Institutional Asset Management B.V. cut its stake in shares of W.R. Berkley Corporation (NYSE: WRB) by 21.4% in the undefined quarter, according to the company in its most recent 13F filing wit...
GuruFocus • Jan 09, 2026
Stock News California billionaire tax splits tech leaders: Nvidia (NVDA) CEO Jensen Huang said he's âfineâ with a proposed one-time 5% California wealth tax
GuruFocus • Jan 09, 2026
Stock News xAI under fire over Grok image edits: Elon Musk's xAI (private) restricted Grok's image generation/editing on X to paying users after the tool was us
GuruFocus • Jan 08, 2026
Stock News Silicon Valley split on CA wealth tax: Alphabet's cofounders moved assets out of California while Nvidia's Jensen Huang said he's âperfectly fineâ
Business Wire • Jan 08, 2026
GREENWICH, Conn.--(BUSINESS WIRE)--W. R. Berkley Corporation (NYSE: WRB) announced today that its Board of Directors has increased the Company's share repurchase authorization to 25 million shares of ...
GuruFocus • Jan 08, 2026
Stock News Trump targets Wall Street homebuying: President Trump proposed banning large institutional investors from purchasing single-family homes, sending sha
📅 Upcoming Earnings: Jan 26, 2026
EPS Estimate: $1.12
Revenue Estimate: $3,185,148,500M
This newsletter is generated automatically. Please verify all information independently before making investment decisions.