SLSN NANOPHASE TECHNOLOGIES Corp Insider Trading

Director WHITMORE R JANET bought 2,500 shares (blended avg $1.91) on 2025-12-24 as stock trades 68.1% below 52-week high; 5 recent buys at SLSN all positive short-term but stock down 27.5% in 30 days.

WHITMORE R JANET, a Director, purchased 2 separate tranches totaling 2,500 shares at an average price of $1.91 on 2025-12-24, increasing her holdings from 2,084,198 to 2,086,698 shares. The purchase occurs at $1.66 current price, down 27.5% over the past 30 days and 48.8% over 90 days, placing the stock 68.1% below its 52-week high of $5.21. Her same-ticker history shows five prior buys (all within the past 5–6 weeks) with 30-day returns ranging from +4.4% to +19.1%, though outcomes at the 90-day mark remain unmeasurable. This filing represents a pattern of accumulation during a pronounced downtrend, where her cross-ticker track record demonstrates 100% win rate on 90-day returns across 20 prior buys on other tickers (average +66.5%), but the applicability of that pattern to SLSN's recent steep decline cannot yet be assessed.

Director Whitmore purchases 35,056 shares across 5 transactions for $63,273.58 (avg $1.80); stock now $2.19, up 2.8% in 30 days despite -35.0% in 90 days

Director R. Janet Whitmore purchased 35,056 shares (35.1K shares) across 5 separate transactions from 2025-11-14 through 2025-11-19 at prices ranging from $1.73 to $1.95, totaling $63,273.58 with a blended average of $1.80. Her holdings increased 1.7% to 2.08M shares. The timing of these purchases is notable: they occurred within a window when the stock was trading near its 52-week low of $1.64, approximately 58% below its 52-week high of $5.21. Current price of $2.19 reflects +2.8% price movement over the 30 days since the first purchase. Whitmore's cross-ticker track record shows 20 prior open-market buys with an average 90-day return of +52.7% and a 100% win rate, though no same-ticker historical data is provided to assess her prior performance specifically at SLSN. The company faces headwinds: net income is -$1.1M despite $14.6M quarterly revenue and 40.4% annual revenue growth, and the elevated P/E of 109.50 reflects the stock's recent valuation compression relative to fundamentals.

WHITMORE (10% Owner) simultaneously bought 6,689,000 shares for $28,093,800.00 and sold 6,689,000 shares for $28,093,800.00 at $4.20

WHITMORE BRADFORD T executed 2 purchases totaling 6,689,000 shares for $28,093,800.00 and 2 simultaneous sales totaling 6,689,000 shares for $28,093,800.00—both at identical prices ($4.20) on the same date. This 1:1 matched buy-sell is unusual and warrants inquiry into its purpose: whether it represents a tax-driven transaction, a position restructuring, an exercise or rehedging, or a regulatory filing artifact. The insider remains a substantial 10% owner with 18,669,879 shares post-transaction, and the stock has rallied +28.8% in the past 30 days from a depressed prior level, trading at 52-week highs near $4.15. The company shows strong growth (+40.4% annual revenue) on a modest $14.6M quarterly revenue base, though valuations remain compressed at P/E 80.60.

Director Janet Whitmore buys 45,333 shares across 10 transactions at blended avg $0.84; current price $1.67, stock up 21.0% over 90 days.

Director Whitmore made 10 separate purchases totaling 45,333 shares for $37,886.04 on a single day (2024-10-29) at prices ranging from $0.45 to $1.18, blending to $0.84 per share. The current price of $1.67 is 11.2% below the 52-week high but represents a 21.0% gain over the past 90 days. At the same ticker, her prior 5 trades (all buys on 2024-09-19 through 2024-09-24) showed mixed near-term results: 30-day returns ranged from −4.1% to +2.6%, with none showing measurable 90-day outcomes yet. Her cross-ticker track record across 20 prior buys shows a 100% 90-day win rate (average 90d return +3.4%), though this broader track record does not necessarily predict performance at Nanophase specifically. The company remains unprofitable on an annual basis despite latest-quarter revenue of $13.0M and net income of $856.0K, with essentially flat annual growth.

Director Whitmore R Janet bought 49,900 shares at $1.59 blended average in 4 transactions (Sept 23-24), expanding stakes to 2,003,809 shares.

Director Whitmore R Janet executed 4 separate purchases totaling 49,900 shares for $79,550.50 over two trading days at prices ranging from $1.55 to $1.60, achieving a blended average price of $1.59. This represents a 2.6% increase in her holdings to 2,003,809 shares post-transaction. The purchases follow a pattern of rapid accumulation at NANX: this is the sixth buy transaction in the past three weeks (5 prior trades on 2024-09-03, 09-04, 09-09, 09-19, 09-19, with outcomes not yet measurable). The current stock price of $1.53 sits 10.5% below the 52-week high of $1.71, though the timing of this rapid series of purchases relative to near-term price momentum cannot be assessed without knowing the circumstances driving the buying cadence. Fundamentally, the company reported annualized net income of $856.0K on revenue of $13.0M in the latest quarter, but was unprofitable over its most recent full fiscal year, which provides limited comfort for the accumulation pattern despite the director's substantial reinvestment in holdings.

COO Kevin Cureton buys 4,716 shares at $1.49 avg; 5 of 5 prior NANX buys delivered positive 90d returns.

Kevin Cureton, Chief Operating Officer of Nanophase Technologies, executed 2 separate purchases totaling 4,716 shares for $7,004.65 on 2024-09-23, raising his holdings from 187,496 to 192,212 shares (a +2.5% net increase). His 5 prior open-market purchases at NANX, all clustered in late June 2024, showed a consistent pattern: each delivered positive 90-day returns ranging from +1.4% to +8.3%, with 100% of prior trades well-timed at the 90-day horizon. The blended average purchase price of $1.49 sits 2.6% below the current price of $1.53, placing this transaction at a point where the 30-day trend has shifted positive (+2.0%) despite a 90-day headwind (-4.4%) and the stock trading 10.5% below its 52-week high. The company's fundamentals show flat annual revenue growth (−0.0%) and a negative full-year net income, alongside modest latest-quarter earnings of $856,000.00 on $13.0M revenue. The convergence of repeated insider accumulation with historically reliable 90-day timing outcomes at this ticker—coupled with a fresh buy at modest valuation relative to prior entry points—constitutes a material continuation of an established buying pattern.

Director Whitmore buys 2,200 shares of NANX at avg $1.56 in 2 transactions; holds 1.95M shares post-purchase

Director R Janet Whitmore purchased 2,200 shares ($3,434.00 total) in two separate open-market transactions on 2024-09-19, increasing her holdings from 1,951,709 to 1,953,909 shares. The purchase price of $1.56 (blended average) sits just below the current price of $1.58 and within the 52-week range of $0.43–$1.71. However, Whitmore's cross-ticker track record shows 20 prior buys with an average 90-day return of -3.7% and a 33.33% win rate, indicating limited success timing open-market purchases historically. At NANX specifically, she has executed 5 prior trades all in early-to-mid September 2024, all buys, with no measurable outcomes yet. The incremental purchase represents only a +0.1% increase to her pre-existing stake, suggesting modest portfolio activity rather than a material new position-building signal.

Director WHITMORE R JANET bought 4,488 shares of NANX at $1.51 on 2024-09-09; stock at -11.7% from 52-week high following recent buying streak.

Director WHITMORE R JANET purchased 4,488 shares at $1.51, adding to a pattern of five open-market buys at this ticker within the past 3 weeks (2024-08-22 through 2024-09-09). The stock trades at -11.7% from its 52-week high of $1.71, and has rebounded 8.6% over the past 30 days from a 52-week low of $0.43. The company posted $13.0M in quarterly revenue and $856.0K net income but remains unprofitable on a full-year basis with flat annual revenue growth (-0.0%). The insider's cross-ticker buy track record shows a 50.00% win rate at the 90-day mark with an average 90d return of +1.7%, but outcomes at NANX from the prior four buys remain unmeasurable (all within the past month). The cumulative effect is repeated accumulation near the low end of the 52-week range, though the company's challenged profitability and lack of revenue growth provide limited fundamental support for the signal.

Director Janet Whitmore bought 9,263 shares of NANX in 3 separate transactions Sept 3-4 for $13,888.62 (avg $1.50/share)

Janet Whitmore, a director, made 3 separate open-market purchases totaling 9,263 shares at an average blended price of $1.50 on 2024-09-03 and 2024-09-04, expanding her stake from 1,937,958 to 1,947,221 shares (+0.5%). The purchases occurred near the lower end of the 52-week range ($0.43–$1.71), with the stock currently trading at $1.51, just 1 cent above the blended transaction price. At the cross-ticker level, Whitmore's track record shows 20 prior buys with a 55.56% 90-day win rate and +6.1% average 90-day return; however, none of her 5 prior NANX trades have yet completed a 90-day measurement window, limiting direct precedent for timing accuracy at this specific ticker. The company is unprofitable year-over-year and revenue is flat (annual growth -0.0%), which contextualizes the low valuation environment in which this purchase occurred.

Director Janet Whitmore buys 1,177 shares of NANX at $1.52; stock down 12.9% from 52-week high.

Director Whitmore purchased 1,177 shares at $1.52 on 2024-08-27, a routine open-market buy that increases her holdings by 1,936,781 to 1,937,958 shares. The purchase occurred as the stock trades 12.9% below its 52-week high of $1.71 and has declined 12.8% over the past 90 days, though the timing relative to price movements cannot be assessed without a scheduled trading plan flag. Whitmore's cross-ticker track record shows a 50.00% win rate over 90 days with an average return of +4.8%, but her prior NANX trades (5 distinct buys across August-September 2024) lack measurable outcomes, making this a routine director acquisition with limited forward-looking signal value given the company's unprofitability in the most recent full fiscal year and flat year-over-year revenue growth of -0.0%.