KALA · Insider Trading

KALA BIO, Inc. Common Stock

Every open-market purchase and sale reported by KALA officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.

Form 4 Filings
50
most recent
Open-Market Buys
1
code P
Sales
27
code S
Reporting Insiders
12
current holders
KALA — Recent Form 4 Transactions (latest 2025-12-22)
FiledInsiderRole TypeSharesValue
2025-12-22 David E. Lazar Chief Executive Officer J — —
2025-11-26 David E. Lazar Chief Executive Officer A — —
2025-10-24 Romulus K Brazzell SEE REMARKS Sell −46,748 −$38.80K
2025-10-24 Mark T Iwicki Director Sell −154,894 −$125.46K
2025-10-24 Darius Kharabi CHIEF BUSINESS OFFICER Sell −20,806 −$17.27K
2025-10-24 Mary Reumuth CHIEF FINANCIAL OFFICER Sell −33,197 −$27.54K
2025-10-24 Todd Bazemore Director Sell −47,768 −$39.65K
2025-10-02 BAKER BROS. ADVISORS LP — Sell −2,921,632 −$4.23M
2025-09-02 Todd Bazemore SEE REMARKS A +180,000 deriv. —
2025-06-26 Darius Kharabi CHIEF BUSINESS OFFICER Sell −4,511 −$18.09K
2025-06-26 Romulus K Brazzell SEE REMARKS Sell −5,251 −$21.06K
2025-06-26 Mary Reumuth CHIEF FINANCIAL OFFICER Sell −3,631 −$14.56K
2025-06-26 Mark T Iwicki Director Sell −13,227 −$53.04K
2025-06-26 Todd Bazemore SEE REMARKS Sell −4,058 −$16.27K
2025-06-17 Howard B Rosen Director A +2,450 —
2025-06-17 Mark T Iwicki Director A +2,450 —
2025-06-17 C. Daniel Myers Director A +2,450 —
2025-06-17 Andrew I Koven Director A +3,050 —
2025-06-17 Gregory D Perry Director A +2,450 —
2025-06-17 Marjan Farid Director A +2,450 —
2025-06-05 Mark T Iwicki Director Sell −10,866 −$40.64K
2025-06-04 Romulus K Brazzell SEE REMARKS Sell −3,687 −$13.79K
2025-06-04 Mary Reumuth CHIEF FINANCIAL OFFICER Sell −2,850 −$10.66K
2025-06-04 Todd Bazemore SEE REMARKS Sell −3,390 −$12.68K
2025-06-04 Mark T Iwicki Director Sell +10,866 +$40.64K
2025-06-04 Darius Kharabi CHIEF BUSINESS OFFICER Sell −730 −$2.73K
2025-03-10 Todd Bazemore SEE REMARKS A +45,200 deriv. —
2025-01-10 Romulus K Brazzell SEE REMARKS — — —
2025-01-07 Mark T Iwicki CHIEF EXECUTIVE OFFICER MIXED +16,321 −$44.09K
2025-01-07 Romulus K Brazzell SEE REMARKS MIXED +7,654 −$18.66K
2025-01-07 Darius Kharabi CHIEF BUSINESS OFFICER MIXED +8,079 −$15.42K
2025-01-07 Mary Reumuth CHIEF FINANCIAL OFFICER MIXED +8,394 −$13.02K
2025-01-07 Todd Bazemore SEE REMARKS MIXED +8,107 −$15.21K
2024-12-31 Julian Baker 10%+ Owner Buy +1,242,236 +$8.00M
2024-06-27 Darius Kharabi CHIEF BUSINESS OFFICER Sell −5,158 −$24.50K
2024-06-27 Todd Bazemore SEE REMARKS Sell −4,653 −$22.10K
2024-06-27 Mary Reumuth CHIEF FINANCIAL OFFICER Sell −4,163 −$19.77K
2024-06-27 Mark T Iwicki CHIEF EXECUTIVE OFFICER Sell −15,168 −$72.05K
2024-06-27 Romulus K Brazzell SEE REMARKS Sell −5,489 −$26.07K
2024-06-12 Gregory D Perry Director A +1,400 —
2024-06-12 Marjan Farid Director A +1,400 —
2024-06-12 Andrew I Koven Director A +1,750 —
2024-06-12 Mark S. Blumenkranz Director A +1,400 —
2024-06-12 Howard B Rosen Director A +1,400 —
2024-06-12 C. Daniel Myers Director A +1,400 —
2024-06-03 Romulus K Brazzell SEE REMARKS Sell −2,002 −$12.19K
2024-06-03 Darius Kharabi CHIEF BUSINESS OFFICER Sell −231 −$1.41K
2024-06-03 Todd Bazemore SEE REMARKS Sell −2,093 −$12.75K
2024-06-03 Mark T Iwicki CHIEF EXECUTIVE OFFICER Sell −7,392 −$45.02K
2024-06-03 Mary Reumuth CHIEF FINANCIAL OFFICER Sell −1,786 −$10.88K
KALA — Current Insider Holders
InsiderRole Shares HeldValue
Julian Baker 10%+ Owner 2,370 $441
Mark T Iwicki Director 2,071 $386
BAKER BROS. ADVISORS LP — 930 $173
Darius Kharabi CHIEF BUSINESS OFFICER 835 $155
Romulus K Brazzell SEE REMARKS 719 $134
Todd Bazemore SEE REMARKS 719 $134
Mary Reumuth CHIEF FINANCIAL OFFICER 578 $108
Andrew I Koven Director 339 $63
Howard B Rosen Director 330 $61
Gregory D Perry Director 267 $50
C. Daniel Myers Director 207 $39
Marjan Farid Director 205 $38
KALA Insider Trading FAQ
Who are the insiders at KALA?
12 officers, directors and 10%+ beneficial owners currently report holdings in KALA via SEC Form 4.
Are KALA insiders buying or selling?
Across the 50 most recent Form 4 filings for KALA, 1 were open-market purchases (code P) and 27 were sales (code S). Sales frequently reflect scheduled 10b5-1 plans or tax withholding rather than a view on the stock.
How current is KALA insider data?
Form 4 must be filed within two business days of the transaction, so this is close to real time. The most recent KALA filing is dated 2025-12-22.
How to read Form 4 activity

Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.

Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.

Full filing history and per-insider positions are on the KALA quote page; the site-wide leaderboard is on the insider transactions hub.

Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.